hydrostatic steering unitsandaccessories
TRANSCRIPT
HYDROSTATIC STEERING UNITS AND ACCESSORIES
CONTENTS
Page
“M+S HYDRAULIC” can accept no responsibility for possible errors in catalogues, brochures and other printed material.“M+S HYDRAULIC” reserves the right to alter its products without notice. This also applies to products already on order provided that suchalterations can be made without subsequential changes being necessary in specifications already agreed.
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Hydrostatic Steering Units Type XY.../1......................................................................3
Hydrostatic Steering Units Type HKU.../3,4........................................... .....
Hydrostatic Steering Units Type HKU/ PB............... ...............................
Hydrostatic Steering Units Type HKUQ......... .....................................1
Hydrostatic Steering Units Type .....................................1
Hydrostatic Steering Units Type HKUS.../5 ...................................
ydrostatic Steering Units Type HKU .../5 ...................................
ydrostatic Steering Units Type HKU .../ .. .................................
ydrostatic Steering Units Type HKU .../5 ...................................
Priority Valves For HKU S .../5... Type PRT.../160.......................................................
Steering Columns Type KK............................................... ......................
Steering Columns Type KK .................................................. ...................
General Application And Specification Information..................... ..............
....................... 5
4 ........................ 13
............................. 5
........................ 7
RDT........................... 24
H L DT.............................. 26
H M 4(PB).............. ............... 30
H M DT................................. 31
( ) 40
.......................... 45
M ....................... 49
.................... 53
Hydrostatic Steering Units Type HKU.../7........................................... ........
Hydrostatic Steering Units Type HKUS.../3,4,8................................ ..........
Hydrostatic Steering Units Type HKU S .../5( ) ...................... .............1
Valve Blocks For HKU.../3,4, 7... Type BKH...... ......................................................
Priority Valves For HKUS.../5... Type PR... ....................................................
Torque Amplifiers Type UVM............. ..................................................
....................... 6
....................... 8
( ) D (T)(E)(TE)(TU) ... 9
5, ...... 34
/40,80,120 36
.............................. 43
� Hydrostatic Steering Units Type HKU / ............... ...............................S 7.. ........................ 11
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HKUSD.../.../4
The M+S Hydraulic Hydrostatic Steering units are used in low-speed vehicles which driving
speed does not exceed 60 km/h - such as: building machines, fork-lift trucks, harvesting
machines, off-highway equipment and others. These hydraulic units amplify the torque to the
steering wheels, with no need of hard mechanical connection.
3
HYDROSTATIC STEERING UNITS TYPE XY.../1
The XY hydrostatic steering unit
incorporates an axially displaced
tracing valve and a metering pump in
one housing. The working liquid is
supplied by a separate pump and then
is directed by the metering pump to the
steering cylinders.The XY steering unit is manufactured
with a built-in check valves, and there
is an option for a built-in relief valve in
the inlet.
Displacement
[ ]
Rated Flow*
[ ]
Rated Pressure
[ ]
Relief Valve Pressure
Settings** [ ]
Shock Valves Pressure
Settings*** [ ]
Max. Cont. Pressure
in Line T [ ]
Max. Torque at
Servoamplifying [ ]
Max. Torque w/o
Servoamplifying
Weight
[ ]
Dimension A
[i ]
cm /rev
in /rev
lpm
GPM
bar
PSI
bar PSI
bar PSI
bar PSI
Nm lb - in
Nm [lb - in]
kg
lb
mm
n
3
3.
.
.
.
.
.
.
Parameters
Type
[ ] [ ] [ ] [ ]
80 100 125 150
1160 1450 1810 2175
[ ]
200
2900
120
7.32[ ]
144
8.79[ ]
6,8
5.0[ ]1
6,4
14.1[ ]
6,6
14.6[ ]
120
1065[ ]
84
5.13[ ]
13 ,
5.
6 3
[ 37]
1
5. 7
41.5
[ 5 ]
1
5.
44.5
[ 69]
145.../1
XY
120.../1
XY
85.../1
XY
9
2.4[ ]
12
3.2[ ]
15
4.0[ ]
1 05
2175[ ]
20
290[ ]
3,5
[ ]31
SPECIFICATION DATA
* Rated Flow at 100 RPM.
Pressure Settings are at Rated Flow (as in the table ) and viscosity [ ] at [ ].
***Pressure Settings are at flow rate of 4 [1.06 ] and viscosity
** 21 mm /s 105 SUS 50 C 122 F
lpm GPM 21 mm /s [105 SUS] at 50 C [122 F].
2
2
° °° °
"Open Center - Load Reaction"XY...-.../1
P T
L R
"Open Center - Load Reaction"XY...-0/1
P T
L R
DIMENSIONS AND MOUNTING DATA
4
XY ... /1
STEERING UNITS
X Y
ORDER CODE
Pos.4
Pos.1
1 2 3 4 5
Pos.2
Pos.3
/-
Pos.5
NOTES:
The steering units are mangano-phosphatized as standard.
1
75
,5 [
2.9
7]
2
D
46 [1.81 ]1
With relief valve
mm [in]
- Displacement code
- Relief Valve Pressure Settings
- Option (Paint)*
- Versions
- Design Series
***
Colour at customer’s request.Non painted feeding surfaces, colour at customer's request.
85
120
145
- 84,0 cm /rev [5.13 in /rev]3 3
- 120,0 cm /rev [7.32 in /rev]3 3
- 144,0 cm /rev [8.79 in /rev]3 3
8
1012,5
15
0
- 80 bar [1160 PSI]
- 100 bar [1450 PSI]
- 125 bar [1810 PSI]
- 150 bar [2175 PSI]
- without Relief Valve
1 - Version 1 "Open Center - Load Reaction”
omit
P
PC
PS
PCS
- No Paint
- Painted
- Corrosion Protected Paint
- Special Paint**
- Special Corrosion Protected Paint**
omit - Factory specified
88 [3.4 ]65
45º45º
90 [
3.5
4]
3
43 [1.69 ]3
ø82±0,1
4 x M10
12[.47 ] depth2
[3.2 ]28±.004
27,5[1.08 ]3
44[1.73 ]2
98 [3.8 ]58
50 [1.9 ]69
120 [4.72 ]4
61 [2.4 ]02
32
,5 [
1.2
8]
03
0,5
[1
.2]
01
14
,5 [
.57
]1
23
[.9
]0
6
25 [
.98
]4
27
[1.0
6]
3
A
D
ø2
0
ø3
8 [
1.
]4
69
ø4
2 [
1.6
5]
4
ø5
1 [
2.0
]0
8
+0
,00
7ø8+0,15
T
L
R
P
31 [1.22 ]0
17,5[.6 9]8
2 x M8
14 [.81] depth
4 x M18x1,5
14 [.81] depth
[.315 ]+.006
[.7
9 ]
+.0
00
3
-.0
011
-0,0
28
5
HYDROSTATIC STEERING UNITS TYPE HKU.../3, 4
"Open Center - Non Load Reaction"HKU.../4
"Open Center - Load Reaction"HKU.../3
L
P
R
T
L
P
R
T
SPECIFICATION DATA
* Inlet flow providing maximum speed of rotation:
- 100 RPM - from HKU40 to HKU630;
- 87 RPM - for HKU800;
- 70 RPM - for HKU1000.
The newly designed HKU steering units, with radial distribution, incorporate two rotary
tracing valves in the housing, which turn on the metering pump.
Parameters
HKU
40/3
HKU
40/4
170
2465[ ]
25 363
40 580
[ ]
[ ]
4
1.1[ ]
6
1.6[ ]
8
2.1[ ]
13
3.4[ ]
20
5.3[ ]
25
6.6[ ]
32
8.4[ ]
40
10.6[ ]
50
13.2[ ]
63
16.6[ ]
70
18.5[ ]
140
2030[ ]
100
1450[ ]
39,6
2.42[ ]
65,6
4.0[ ]
79,2
4.83[ ]
99,0
6.04[ ]
7.56
[123,8]
9.67
[158,4]
793
48.4[ ]
990
60.4[ ]
198
12.1[ ]
247,5
15.1[ ]
316,8
19.3[ ]
396
24.2[ ]
495
30.2[ ]
623,6
38.05[ ]
49,5
3.0[ ]
5,3
11.7[ ]
5,4
11.9[ ]
5,5
12.2[ ]
5,6
12.4[ ]
5,7
12.6[ ]
5,8
12.8[ ]
6,0
13.2[ ]
6,3
13.9[ ]
6,5
14.3[ ]
7,0
15.4[ ]
7,4
16.3[ ]
8,0
17.6[ ]
8,7
19.2[ ]
9,6
21.2[ ]
10,6
23.4[ ]
158,8
[6.25]
178,8
[7.04]
130,85
[5.1]
132,2
[5.20]
133,9
[5.27]
136,2
[5.36]
258,6
[10.18]
138,8
[5.47]
142,2
[5.60]
146,8
[5.78]
152,2
[5.99]
168,2
[6.62]
192
[7.56]
209,3
[8.24]
232,2
[9.14]
120
1065[ ]
Displacement
Rated Flow*
Rated Pressure
Max. Cont. Pressure
in Line T
Max. Torque at
Servoamplifying
Max. Torque w/o
Servoamplifying
Weight
Dimension A
- standard
- high pressure (H option)
- with standard springs
- with soft springs (LT option)
.
.
5
1.3[ ]
10
2.6[ ]
16
4.2[ ]
3,0 [26]
1,8 [16]
3,0 [26]
-
140
2030[ ]
HKU
50/3
HKU
50/4
HKU
63/3
HKU
63/4
HKU
80/3
HKU
80/4
HKU
100/3
HKU
100/4
HKU
125/3
HKU
125/4
HKU
160/3
HKU
160/4
HKU
200/3
HKU
200/4
HKU
250/3
HKU
250/4
HKU
320/3
HKU
320/4
HKU
400/3
HKU
400/4
HKU
500/4
HKU
630/4
HKU
800/4
HKU
1000/4
cm /rev
n /rev
3
3[i ]
lpm
[GPM]
bar
[PSI]
bar [PSI]
Nm [lb-in]
Nm [lb-in]
kg
[lb]
mm
[in]
Type
6
HYDROSTATIC STEERING UNIT TYPE HKU.../7
"Closed Center - Non Load Reaction"Version 7 - HKU.../7
L
P
R
T
SPECIFICATION DATA
The HKU.../7 is a hydrostatic steering unit, designed for
integration into systems with built-in hydroaccumulator, achieving minimal energy losses.
"Closed Center - Non Load Reaction"
For the and
steering units is possible to observe Thermal
Shock - condition caused when the hydraulic system
has operated for some time without turning the
steering wheel, causing the
"Closed Center - Non Load Reaction"
"Closed Center - Non Reaction and Load Sensing"
fluid in the reservoir and
When connecting to a differential cylinder the L and R ports of the steering unit must be
connected as follows: L to the greater piston area, and R - to the smaller one.
* Inlet flow providing maximum speed of rotation:
- 100 RPM - from HKU40 to HKU630;
- 87 RPM - for HKU800.
the system to heat up while the steering unit is relatively cool (i.e. there is
more than 500F [100C] difference in the temperature). If, under the condition of
Thermal Shock, the steering wheel is turned very quickly, it is possible to
experience temporary seizure and have the internal parts of the steering unit
damaged. The temporary seizure may be followed by a total free wheeling.
Parameters
Type
100/7
HKU
125/7
175
[2540]
50/740/7
HKUHKU
63/7
HKU
65,6
4.0[ ]
80/7
HKU
79,2
4.83[ ]
99,0
6.04[ ]
HKU
123,8
7.56[ ]
HKU
160/7
158,4
9.67[ ]
200/7 500/7
HKU HKU
50
13.2[ ]
198
12.1[ ]
495
30.2[ ]
250/7 630/7
HKU HKU
63
16.6[ ]
247,5
15.1[ ]
320/7 800/7
HKU HKU
80
21.1[ ]
316,8
19.3[ ]
793
48.4[ ]
400/7
HKU
40
10.6[ ]
396
24.2[ ]
49,5
3.0[ ]
39,6
2.42[ ]
5,7
12.6[ ]
6,5
14.3[ ]
8,0
17.6[ ]
5,4
11.9[ ]
5,3
11.7[ ]
5,5
12.2[ ]
5,6
12.4[ ]
5,8
12.8[ ]
6,0
13.2[ ]
6,3
13.9[ ]
7,0
15.4[ ]
8,7
19.2[ ]
7,4
16.3[ ]
9,6
21.2[ ]
120
1065[ ]
158,8
6.25[ ]
178,8
7.04[ ]
130,8
5.15[ ]
132,2
5.20[ ]
133,9
5.27[ ]
136,2
5.36[ ]
138,8
5.47[ ]
142,2
5.60[ ]
146,8
5.78[ ]
152,2
5.99[ ]
168,2
6.62[ ]
192
7.56[ ]
209,3
8.24[ ]
232,2
9.14[ ]
4
1.1[ ]
6
1.6[ ]
8
2.1[ ]
13
3.4[ ]
20
5.3[ ]
25
6.6[ ]
32
8.4[ ]
5
1.3[ ]
10
2.6[ ]
16
4.2[ ]
623,6
38.05[ ]
140
[2030]
125
[1810]
25 363
40 580
[ ]
[ ]
3,0 26
1,8 16
[ ]
[ ]
3,0 26[ ]
-
Displacement
Rated Flow*
Rated Pressure
Max. Cont. Pressure
in Line T
Max. Torque at
Servoamplifying
Max. Torque w/o
Servoamplifying
Weight
Dimension A
- standard
- high pressure (H option)
- with standard springs
- with soft springs (LT option)
.
.
cm /rev
n /rev
3
3[i ]
lpm
[GPM]
bar
[PSI]
bar [PSI]
Nm [lb-in]
Nm [lb-in]
kg
[lb]
mm
[in]
DIMENSIONS AND MOUNTING DATA - HKU.../3, 4, 7
7
HKU.../3,4,7
STEERING UNITS
* These threads are for displacements from HKU40 to HKU200 only.
G1/217 [.67] depth
M22x1,517 [.67] depth
3/4 - 16 UNFO-ring 17 [.67] depth
9/16 - 18 UNFO-ring 17 [.67] depth
4 x M10[ ] depth
4 x M10[ ] depth
18 .71
18 .71
4 x 3/8 - 16 UNC15,7 [.62] depth
4 x 3/8 - 16 UNC15,7 [.62] depth
2 x M10x1[ ] depth
2 x M10x1[ ] depth
16 .63
16 .63
2 x 3/8 - 24 UNF14,2 [.56] depth
2 x 3/8 - 24 UNF14,2 [.56] depth
BA*
A
-
M
code
Ports - P, T, R, LThread
Column MountingThread - B
Valve MountingThread - V
84 3.307[ ]
58,5 2.303[ ]
ø82±0,1[3.2 ]28±.004
B
103,5 4.075[ ]
91
[3
.58
]3
DP 16/32, 12 teeth
.67ANS B92.1-1976, 17 [ ] depth
mm [in]
45º
45º
7 .2[ 76] 57 2.24[ 4]
18
.7[0
9]
A
2,8 .11[ 0] 35 1.3 8[ 7 ] 44 [1.732]
V
T
L R
P
ø5,6H12 [.22]6,3 [.248] depth
60
±0
,15
[2.3
62
±.0
06
]
ø4
4,4
-0,2
[1.7
5]
-.0
08
44
[1.7
32
]
8
HYDROSTATIC STEERING UNITS TYPE HKUS.../3, 4, 8
The HKUS Hydrostatic Steering unit is based on the HKU unit but has built-in relief and check
valves. Thus M+S Hydraulic achieves one very compact steering unit which reduces the need for
additional hydraulic components in the system.
"Open Center - Load Reaction"HKUS.../3
"Open Center - Non Load Reaction"HKUS.../4
"Open Center - Non Load Reaction"HKUS.../8
P T
L R L
P
R
T
L
P
R
T
SPECIFICATION DATA
******
Rated Flow at 100 RPM.
Pressure Settings are at Rated Flow (as in the table) and viscosity 21 mm /s [105 SUS] at 50 C [122 F].
Pressure Settings are at flow rate of 2 lpm [.53 GPM] and viscosity 21 mm /s [105 SUS] at 50 C [122 F].
2
2
° °° °
Displacement
Rated Flow*
Rated Pressure
Relief Valve Pressure
Settings**
Shock Valves Pressure
Settings***
Max. Cont. Pressure
in Line T
Max. Torque at
Servoamplifying
Max. Torque w/o
Servoamplifying
Weight
Dimension A
- standard
- high pressure (H option)
- with standard springs
- with soft springs (LT option)
.
.
Parameters
Type
170
2465[ ]
[ ] [ ] [ ] [ ]
80 100 125 150 170
1160 1450 1810 2175 [2465]
[ ] [ ] [ ] [ ]
140 160 180 200 220
2030 2320 2610 2900 [3190]
65,6
4.0[ ]
79,2
4.83[ ]
99,0
6.04[ ]
123,8
7.56[ ]
158,4
9.67[ ]
198
12.[ 1]
247,5
15.1[ ]
316,8
19.3[ ]
400/3,4,8
HKUS
40
10.6[ ]
396
24.[ 2]
49,5
3.0[ ]
( [ ] by HKUS.../8)50 725
5,7
12.6[ ]
6,5
14.3[ ]
5,4
11.9[ ]
5,3
11.7[ ]
5,5
12.2[ ]
5,6
12.4[ ]
5,8
12.8[ ]
6,0
13.2[ ]
6,3
13.9[ ]
7,0
15.4[ ]
7,4
16.3[ ]
120
1065[ ]
39,6
2.42[ ]
158,8
6.25[ ]
178,8
7.04[ ]
130,8
5.15[ ]
132,2
5.20[ ]
133,9
5.27[ ]
136,2
5.36[ ]
138,8
5.47[ ]
142,2
5.60[ ]
146,8
5.78[ ]
152,2
5.99[ ]
168,2
6.62[ ]
320/3,4,8
HKUS
250/3,4,8
HKUS
200/3,4,8
HKUS
160/3,4,8
HKUS
125/3,4,8
HKUS
100/3,4,8
HKUS
80/3,4,8
HKUS
63/3,4,8
HKUS
50/3,4,8
HKUS
40/3,4,8
HKUS
4
1.1[ ]
6
1.6[ ]
8
2.1[ ]
13
3.4[ ]
20
5.3[ ]
25
6.6[ ]
32
8.4[ ]
5
1.3[ ]
10
2.6[ ]
16
4.2[ ]
140
2030[ ]
25 363
40 580
[ ]
[ ]
3,0 26
1,8 16
[ ]
[ ]
3,0 26[ ]
-
500/3,4,8
HKUS
50
13.2[ ]
495
30.2[ ]
8,0
17.6[ ]
192
7.56[ ]
cm /rev
in /rev
3
3[ ]
lpm
[GPM]
bar
[PSI]
bar [PSI]
Nm [lb-in]
kg
[lb]
mm
[in]
bar [PSI]
bar [PSI]
Nm [lb-in]
DIMENSIONS AND MOUNTING DATA - HKUS.../3, 4, 8
9
HKUS.../3,4,8
STEERING UNITS
*Threaded Ports P min [ ] depth for pipe mounting.15 59.
mm [in]
G1/217 [.67] depth
M22x1,517 [.67] depth
3/4 - 16 UNFO-ring 17 [.67] depth
4 x M10[ ] depth
4 x M10[ ] depth
18 .71
18 .71
4 x 3/8 - 16 UNC15,7 [.62] depth
2 x M10x1[ ] depth
2 x M10x1[ ] depth
16 .63
16 .63
2 x 3/8 - 24 UNF14,2 [.56] depth
A
-
M
code
Ports - P*, T, R, LThread
Column MountingThread - B
Valve MountingThread - V
45º
45º
B
84 3.307[ ]
58,5 2.303[ ]
ø82±0,1[3.2 ]28±.004
103,5 4.075[ ]
91
[3
.58
]3
DP 16/32, 12 teeth
.67ANS B92.1-1976, 17 [ ] depth
7 .2[ 76] 57 2.24[ 4]
A
2,8 .11[ 0] 35 1.3 8[ 7 ] 44 [1.732]
V
T
L R
P60
±0
,15
[2.3
62
±.0
06
]
ø4
4,4
-0,2
[1.7
5]
-.0
08
44
[1.7
32
]
STEERING
UNITS
ORDER CODE
H K U S
1 2 3 4 5
/ - -
6
The steering units are mangano-phosphatized as standard.
H K U
ORDER CODE
Pos.1
1 2 3 4 5
Pos.2
/ -
Version
3
4
8
ManualSteering
Check Valve
ReliefValve
InletCheckValve
CylinderReliefValve
Anti-Cavitation
Valve
The steering units are mangano-phosphatized as standard.
7 8
Notes:
7 8 9
6
Pos.3
10
40 - 39,6 cm /rev [2.42 in /rev]3 3
50 - 49,5 cm /rev [3.00 in /rev]3 3
63 - 65,6 cm /rev [4.00 in /rev]3 3
80 - 79,2 cm /rev [4.83 in /rev]3 3
100 - 99,0 cm /rev [6.04 in /rev]3 3
125 - 123,8 cm /rev [7.56 in /rev]3 3
160 - 158,4 cm /rev [9.67 in /rev]3 3
200 - 198,0 cm /rev [12.10 in /rev]3 3
250 - 247,5 cm /rev [15.10 in /rev]3 3
320 - 316,8 cm /rev [19.30 in /rev]3 3
400 - 396,0 cm /rev [24.20 in /rev]3 3
500 - 495,0 cm /rev [30.20 in /rev]3 3
630 - 623,6 cm /rev [38.05 in /rev]3 3
800 - 793,0 cm /rev [48.40 in /rev]3 3
1000 - 990,0 cm /rev [60.40 in /rev]3 3
- Displacement code (see Specification Data)
- Versions
3 - Version 3 ”Open Center - Load Reaction”
4 - Version 4 ”Open Center - Non Load Reaction”
7 - Version 7 ”Closed Center - Non Load Reaction”
- Ports
omit - BSPP (ISO 228)
M - Metric (ISO 262)
A - SAE (ANSI B 1.1 - 1982)
BA* - SAE (ANSI B 1.1 - 1982)
Pos.4 - Max. Cont. Pressure in line T
omit - Standard
H - High pressure
Pos.5 - Input torque
omit - Standard
LT* - Low
Pos.6 - Noise level
omit - Standard
LN* - Low
Pos.7 - Option (Paint)* **
omit - No Paint
P - PaintedPCPSPCS
- Corrosion Protected Paint- Special Paint****- Special Corrosion Protected Paint****
Pos.8 - Design Series
omit - Factory specified
Notes: Available only for displacement from 40 to 200.Available only for versions 3 and 4 withdisplacement from 40 to 200.Colour at customer’s request.
Non painted feeding surfaces, colour atcustomer's request.
**
**
*
*****
Pos.1
40 - 39,6 cm /rev [2.42 in /rev]3 3
50 - 49,5 cm /rev [3.00 in /rev]3 3
63 - 65,6 cm /rev [4.00 in /rev]3 3
80 - 79,2 cm /rev [4.83 in /rev]3 3
100 - 99,0 cm /rev [6.04 in /rev]3 3
125 - 123,8 cm /rev [7.56 in /rev]3 3
160 - 158,4 cm /rev [9.67 in /rev]3 3
200 - 198,0 cm /rev [12.10 in /rev]3 3
250 - 247,5 cm /rev [15.10 in /rev]3 3
320 - 316,8 cm /rev [19.30 in /rev]3 3
400 - 396,0 cm /rev [24.20 in /rev]3 3
500 - 495,0 cm /rev [30.20 in /rev]3 3
- Displacement code (see Specification Data)
Pos.2
3 - Version 3 “Open Center - Load Reaction”
4 - Version 4 “Open Center - Non Load Reaction”
8 - Version 8 “Open Center - Non Load Reaction”
- Versions
Pos.3
80, 100,125,150,170
- Relief Valve Pressure Settings, bar
Pos.4
omit - BSPP (ISO 228)
A - SAE (ANSI B 1.1 - 1982)
M - Metric (ISO 262)
- Ports
Pos.6 - Input torque
omit - Standard
LT* - Low
Pos.7 - Noise level
omit - Standard
LN* - Low
Pos.8 - Option (Paint)* **
omit - No Paint
P - PaintedPCPSPCS
- Corrosion Protected Paint- Special Paint****- Special Corrosion Protected Paint****
Pos.9 - Design Series
omit - Factory specified
Available only for displacement from 40 to 200.Colour at customer’s request.Non painted feeding surfaces, colour atcustomer's request.
******
Pos.5
omit - Standard
H - High pressure
- Max. Cont. Pressure in line T
11
HYDROSTATIC STEERING UNITS TYPE HKUS.../7 - series 3
M + S Hydraulic complete its range of hydrostaticsteering units .These products are with built-in shock valves,while fully covering the parameters of the currentHKU../7.The application is for integration into systemswith built-in hydroaccumulator, achievingminimal energy losses.
"Close Center - Non Load Reaction"HKUS.../7 ser.3
SPECIFICATION DATA
8
***
Rated Flow at 100 RPM.
Pressure Settings are at flow rate of 2 lpm [.53GPM] and viscosity 21 mm /s [105 SUS] at 50 C [122 F].2 ° °
Displacement
Parameters
Type
170
[2465]
220
[3190]
65,6
[4.0]
79,2
[4.83]
99,0
[6.04]
123,8
[7.56]
158,4
[9.67]
198
[12.1]
247,5
[15.1]
316,8
[19.3]
400/7
HKUS
40
[10.6]
396
[24.2]
49,5
[3.0]
120
[1065]
39,6
2.42[ ]
320/7
HKUS
250/7
HKUS
200/7
HKUS
160/7
HKUS
125/7
HKUS
100/7
HKUS
80/7
HKUS
63/7
HKUS
50/7
HKUS
40/7
HKUS
4
[1.1]
6
[1.6]
8
[2.1]
13
[3.4]
20
[5.3]
25
[6.6]
32
[8.4]
5
[1.3]
10
[2.6]
16
[4.2]
140
[2030]
25 [363]
40 [580]
3,0 [26]
1,8 [16]
3,0 [26]
-
cm /rev
in /rev
3
3[ ]
lpm
[GPM]
bar
[PSI]
Nm
[lb-in]
kg
[lb]
mm
[in]
bar
[PSI]
125
[1813]
5,7
12.6[ ]
6,5
14.3[ ]
5,4
11.9[ ]
5,3
11.7[ ]
5,5
12.2[ ]
5,6
12.4[ ]
5,8
12.8[ ]
6,0
13.2[ ]
6,3
13.9[ ]
7,0
15.4[ ]
7,4
16.3[ ]
158,8
6.25[ ]
178,8
7.04[ ]
130,8
5.15[ ]
132,2
5.20[ ]
134,2
5.27[ ]
136,2
5.36[ ]
138,8
5.47[ ]
142,2
5.60[ ]
146,8
5.78[ ]
152,2
5.99[ ]
168,2
6.62[ ]
Nm
[lb-in]
bar
[PSI]
Rated Flow*
Rated Pressure
Shock Valve Pressure**
Max. Cont. Pressure
in Line T
- standard
- high pressure (H option)
Max. Torque at
Servoamplifying
- with standard springs
- with soft springs (LT option)
Max. Torque w/o
Servoamplifying
Weight
Dimension A
DIMENSIONS AND MOUNTING DATA - HKUS.../7 - series 3
12
THREADED PORTS
*Threaded Port min 15 mm.P
G1/217 mm depth
M22x1,5
M18x1,5O-ring 17 mm depth
17 mm depth
3/4 - 16UNFO-ring 17 mm depth
4 x M1016 mm depth
4 x M1016 mm depth
4 x 3/8 - 16 UNC16 mm depth
4 x M1016 mm depth
2 x M10x116 mm depth
2 x M10x116 mm depth
-
M
MBO
code
Ports - *P, T, R, LThread
Column MountingThread - B
Valve MountingThread- V
A
2 x M10x116 mm depth
2 x 3/8 - 24 UNF14,2 mm depth
ORDER CODE
The steering units are mangano-phosphatized as standard.If a painting option is required, the standard color is blackAlkyd-styrenated enamel, Black RAL 9005.
Notes: *
**
***
Available only for displacement from 40 to 200.Colour at customer’s request.
Non painted feeding surfaces.
H K U S
1 2 3 4 5
/ -
6 7 8
/ 43
HKUS.../7
STEERING UNITS
mm [in]
DP16/3215 mm depth ANS B92.1-1976
45
o
90
ø82±0,1
103,5
45o
B
58,5
57±0,15
35±0,17
2,8±0,1 min 8V
T
L R
P60
±0
,15
ø4
4,4
-0,2
44
±0
,15
44±0,15
ø8
6
35
A
Pos.1
Pos.2
Pos.3
40 - 39,6 cm /rev [2.42 in /rev]3 3
50 - 49,5 cm /rev [3.00 in /rev]3 3
63 - 65,6 cm /rev [4.00 in /rev]3 3
80 - 79,2 cm /rev [4.83 in /rev]3 3
100 - 99,0 cm /rev [6.04 in /rev]3 3
125 - 123,8 cm /rev [7.56 in /rev]3 3
160 - 158,4 cm /rev [9.67 in /rev]3 3
200 - 198,0 cm /rev [12.10 in /rev]3 3
250 - 247,5 cm /rev [15.10 in /rev]3 3
320 - 316,8 cm /rev [19.30 in /rev]3 3
400 - 396,0 cm /rev [24.20 in /rev]3 3
- Displacement code (see Specification Data)
- Versions
7 - Version 7 ”Closed Center - Non Load Reaction”
- Ports
omit - BSPP (ISO 228)
A - SAE (ANSI B 1.1 - 1982)
M - Metric (ISO 262)
MBO - Metric (ISO 6149-1)
Pos.4 - Max. Cont. Pressure in line T
omit - Standard
H - High pressure
Pos.5 - Input torque
omit - Standard
LT* - Low
Pos.6 - Noise level
omit - Standard
LN* - Low
Pos.7 - Option (Paint)* **
omit - No Paint
P - PaintedPCPSPCS
- Corrosion Protected Paint- Special Paint****- Special Corrosion Protected Paint****
Pos.8 - Design Series
omit - Factory specified
13
HYDROSTATIC STEERING UNIT TYPE HKU.../4PB
The hydrostatic steering unit is available for steering medium and large sized
transport vehicles as building and agricultural machines.HKU…/4PB works as standard steering unit with auxiliary port desi ned for flow
providing additional vehicles functions. When the steering wheel is not turned, the flow
will be delivered to port PB. After steering wheel has been turned a part of flow
will be deviated to the steering unit and the flow t rough port PB will be inconstant.It is not recommended to use this unit in systems with auxiliary functions during the
vehicle steering.
of
suchg
the the
h
"Open Center - Non Load Reaction"HKU.../4PB - Power Beyond
SPECIFICATION DATA
Displacement
[ ]
Rated Flow-5 Port
(Power Beyond) [ ]
Rated Pressure
[ ]
Max. Pressure
in line PB, [ ]
Max. Cont. Pressure
in Line T [ ]
Max. Torque at
Servoamplif ing
Max. Torque w/o
Servoamplif ing
Weight
[ ]
Dimension A
[ ]
i
bar
y
cm /rev
n /rev
lpm
GPM
bar
PSI
bar
PSI
PSI
kg
lb
mm
n
3
3
Nm
[lb-in]
Nm
y [lb-in]
i
.
.
.
.
.
.
Parameters
Type
125
1813[ ]
2,8
[ ]25
125
1813[ ]
HKU
65,6
4.0[ ]
79,2
4.83[ ]
99,0
6.04[ ]
123,8
7.56[ ]
49,5
3.0[ ]
5,7
12.6[ ]
5,4
11.9[ ]
5,5
12.2[ ]
5,6
12.4[ ]
5,8
12.8[ ]
135
1195[ ]
40/4PB
15
3.96[ ]
39,6
2.42[ ]
5,3
11.7[ ]
130,8
5.15[ ]
132,2
5.20[ ]
133,9
5.27[ ]
136,2
5.36[ ]
138,8
5.47[ ]
142,2
5.60[ ]
50/4PB
HKU
63/4PB
HKU
80/4PB
HKU
100/4PB
HKU
125/4PB
HKU
10
145[ ]
84 3.307[ ]
58,5 2.303[ ]
ø82±0,1
[ ]3.228±.004
B
103,5 4.075[ ]
91 [3.5
8]
3
DP 16/32, 12 teeth
. 7ANS B92.1-1976, [ ] depth17 6
7 .276[ ] 57 2.2 44[ ]
A
ø
[]
44
,4
1.7
48
2,8 .110[ ] 35 1.3 87[ ] 44 2[1.73 ]
44
1
.73
2[
]
V
T
L R
P
0 -0,2
-0,0
08
60
±0
,15
[2.3
6±.0
06
]2
45º
45º
PB
14
STEERING
UNITS
The steering units are mangano-phosphatized as standard.
H K U
-40 39,6 [2.42] cm /rev [in /rev]
- 49,5 [3.00] cm /rev [in /rev]
- 65,6 [4.00] cm /rev [in /rev]
- 79,2 [4.83] cm /rev [in /rev]
- 99,0 [6.04] cm /rev [in /rev]
- 123,8 [7.56] cm /rev [in /rev]
3 3
3 3
3 3
3 3
3 3
3 3
50
63
80
100
125
Pos.1 - Displacement code (see Specification Data)
- Version 44PB "Open Center - Non Load Reaction"with 5 ports (Power Beyond)
Pos.2 - Versions
ORDER CODE for HKU.../4PB
Pos.3 - Ports
1 2 4 5
/
Pos.4 - Option (Paint)*
Pos.5 - Design Series
omit - No Paint
- Painted
- Corrosion Protected Paint
- Paint
- Paint
P
PC
P
PC
S
S
Special **
Special Corrosion Protected **
omit - Factory specified
4PB -
3
omit - BSPP (ISO 228)
- SAE (ANSI B 1.1 - 1982)A
G3/817 [.67] depth
9/16 - 18 UNFO-ring 17 [.67] depth
-
A
code
Ports - P, T, R, L, PBThread
Column MountingThread - B
Valve MountingThread - V
DIMENSIONS AND MOUNTING DATA
4 x M1018 [.71] depth
4x 3/8 - 16 UNC15,7 [.62] depth
2 x M10x116 [.63] depth
2 x 3/8 - 24 UNF14,2 [.56] depth
mm [in]
NOTES:
***
Colour at customer’s request.Non painted feeding surfaces, colour at customer's request.
15
HYDROSTATIC STEERING UNIT TYPE HKUQ.../4
"Open Center - Non Load Reaction"HKUQ.../4
SPECIFICATION DATA
HKUQ.../4 is a new series of hydrostatic steering units with an additionally increased flow. The
hydrostatic steering unit type HKUQ…/4 is available for steering medium and large sized vehicles,
allowing easy control either in servo-amplified mode or in emergency operation.HKUQ…/4 is an “Open Center-Non Load Reaction” hydrostatic steering in which restrictor for
amplifying factor from 1,3 to 2,5 is built-in.In accordance with the size of the gear wheel set and amplifying factor, HKUQ…4 has the
following working volume:- from 80 cm3 to 200 cm3 for emergency operation mode (manual steering without servo-
amplifying;- from 100 cm3 to 500 cm3 for normal operation mode (with total flow amplifying).There is no servo-amplifying of flow if low steering speed up to 10 RPM is applied. In steering
speed increase over 20 RPM there is total servo-amplifying of flow. In this mode gear wheel set
flow and restrictor flow are added.
* Rated Flow at 100 RPM.
VARIABLE AMPLIFYING FACTOR
RPM
Parameters
Type
HKUQ80/.../4
HKUQ100/.../4
HKUQ125/.../4
HKUQ160/.../4
HKUQ200/.../4
5,6 12.4
136,2 5.36
[ ]
[ ]
79,24.83[ ]
100
[ ]
10
[ ]
1,3
6.10
2.64
125
[ ]
12,5
[ ]
1,5
7.62
3.30
200
[ ]
20
[ ]
2,5
12.2
5.28
160
[ ]
16
[ ]
2,0
9.76
4.22
5,7 12.6
138,8 5.47
[ ]
[ ]
99,06.04[ ]
125
[ ]
12,5
[ ]
1,3
7.62
3.30
200
[12.2]
20
[ ]
2,0
5.28
160
[ ]
16
[ ]
1,5
9.76
4.22
5,8 12.8
142,2 5.60
[ ]
[ ]
123,87.56[ ]
6,0 13.2
146,8 5.78
[ ]
[ ]
158,49.67[ ]
6,3 13.9
152,2 5.99
[ ]
[ ]
19812.08[ ]
250
[ ]
25
[ ]
2,5
15.25
6.60
200
[ ]
20
[ ]
1,5
12.2
5.28
160
[ ]
16
[ ]
1,3
9.76
4.22
250
[ ]
25
[ ]
2,0
15.25
6.60
320
[ ]
32
[ ]
2,5
19.52
8.45
200
[ ]
20
[ ]
1,3
12.2
5.28
250
[ ]
25
[ ]
1,5
15.25
6.60
320
[ ]
32
[ ]
2,0
19.52
8.45
400
[ ]
40
[ ]
2,5
24.4
10.57
250
[ ]
25
[ ]
1,3
15.25
6.60
320
[ ]
32
[ ]
1,5
19.52
8.45
400
[ ]
40
[ ]
2,0
24.4
10.57
500
[ ]
50
[ ]
2,5
30.5
13.21
170 2465[ ]
25 363[ ]
3
26[ ]
120 1065[ ]
Displacement- without servo-amplifying(in emergency mode)
- with servo-amplifying
Rated Flow* l/min
[GPM]
Amplifying Factor
(at shaft revolution over 20 min )
Rated Pressure bar [PSI]
Max. Cont. Pressure
in Line T bar [PSI]
Max. Torque at
Servoamplifying Nm [lb-in]
Max. Torque w/o
Servoamplifying Nm [lb-in]
Weight, avg. kg [lb]
Dimension A mm [in]
-1
cm /rev
in /rev
3
3[ ]
G1/217 [.67] depth
M22x1,517 [.67] depth
3/4 - 16 UNFO-ring 17 [.67] depth
4 x M10[ ] depth
4 x M10[ ] depth
18 .71
18 .71
4 x 3/8 - 16 UNC15,7 [.62] depth
2 x M10x1[ ] depth
2 x M10x1[ ] depth
16 .63
16 .63
2 x 3/8 - 24 UNF14,2 [.56] depth
A
-
M
code
Ports - P*, T, R, LThread
Column MountingThread - B
Valve MountingThread - V
16
H K U Q
- 79,2 [4.83] cm /rev [in /rev]
- 99,0 [6.04] cm /rev [in /rev]
- 123,8 [7.56] cm /rev [in /rev]
- 158,4 [9.67] cm /rev [in /rev]
- 198,0 [12.10] cm /rev [in /rev]
80
100
125
160
200
3 3
3 3
3 3
3 3
3 3
Pos.1 - Displacement code
4 - Version 4 ”Open Center - Non Load Reaction”
Pos.3 - Versions
NOTES:*
olour at customer’s request.*** Non painted feeding surfaces, colour at customer's request.
Exemplary designation of steering unit with displacement200 cm and amplifying factor 2,5: HKUQ 200/500/4
** C
3
The steering units are mangano-phosphatized as standard.
Pos.2 - Displacement with amplifying factor1,3; 1,5; 2,0 or 2,5
ORDER CODE for HKUQ...
Pos.4 - Ports
1 2 3 4 5
/ /
Pos.5 - Option (Paint)**
Pos.6 - Design Series
omit - Factory specified
6
4 -
omit - BSPP (ISO 228)
- SAE (ANSI B 1.1 - 1982)
- Metric (ISO 262)
A
M
100
125
160
200
250
320
400
500
80 100 125 160 200
k=1,3
k=1,5
k=2,0
k=2,5
........
........
..
..
omit - No Paint
- Painted
- Corrosion Protected Paint
Special ***
Special Corrosion Protected ***
P
PC
S
S
P
PC
- Paint
- Paint
DIMENSIONS AND MOUNTING DATA
44
[1
.73
]2
T
L R
P
DP 16/32, 12 teeth
ANS B92.1-1976, [. 7] depth17 6
103,5 [4.07 ]5
84 [3.3 ]07
45º
45º
91 [
3.5
8]
3
58,5 [2.3 ]03
ø82±0,1[3.2 ±.004]28
B
A
2,8 .110[ ] 35 1.3 87[ ] 44 2[1.73 ]
7 .276[ ] 57 2.244[ ] V
ø
[]
44
,4
1.7
48
0 -0,2
-0,0
08
60
±0
,15
[2.3
6±.0
06
]2
[.22] [.2 depth]48
ø5,6H12x6,3
18 .7
09
[]
mm [in]
*Threaded Ports P min [ ] depth for pipe mounting.15 59.
HKUQ.../... /4
STEERING UNITS
17
HYDROSTATIC STEERING UNIT TYPE HKUSD.../.../4
"Open Center - Non Load Reaction"HKUSD.../4...
******
Rated Flow at 100 RPM.
Pressure Settings are at Rated Flow (as in the table) and viscosity 21 mm /s [105 SUS] at 50 C [122 F].
Pressure Settings are at flow rate of 2 lpm [.53 GPM] and viscosity 21 mm /s [105 SUS] at 50 C [122 F].
2
2
° °° °
ParametersHKUSD63/.../4
140
[8.54]
7,85
[17.3]
195,7
[7.71]
80/.../4 100/.../4 125/.../4
170
[2320]
120
[1065]
65,6
[4.0]
79,2
[4.83]
99,0
[6.04]
123,8
[7.56]
3
[26]
160
[9.67]
220
[13.42]
190
[11.59]
180
[10.98]
240
[14.64]
200
[12.1]
200
[12.1]
225
[13.73]
300
[18.3]
260
[15.86]
250
[15.1]
325
[19.83]
285
[17.39]
HKUSD HKUSD HKUSD
80 100 125 150 170
[1160] [1450] [1810] [2175] [2465]
7,75
[17.1]
193,1
[7.6]
7,95
[17.5]
199,1
[7.84]
8,10
[17.9]
203,7
[8.02]
195,3
[7.69]
198
[7.8]
8,10
[17.9]
201,3
[7.93]
7,85
[17.3]
7,95
[17.5]
8,20
[18.1]
206
[8.11]
200,7
[7.9]
204
[8.03]
8,10
[17.9]
208,7
[8.22]
7,95
[17.5]
8,20
[18.1]
214
[8.43]
8,40
[18.5]
207,3
[8.16]
8,15
[18]
212
[8.35]
8,30
[18.3]
217,3
[8.56]
8,50
[18.8]
160
[9.67]
30
[7.93]
25
[6.6]
28,5
[7.53]
14
[3.69]
19
[5.01]
22
[5.81]
18
[4.76]
24
[6.34]
22,5
[5.94]
26
[6.86]
16
[4.22]
32,5
[8.59]
20
[5.3]
16
[4.22]
20
[5.3]
140 160 180 200 220
[2030] [2320] [2610] [2900] [3190]
25 [363]
40 [580]
Displacement
- without servo-amplifying
(in emergency mode)
- with servo-amplifying
cm /rev
[in /rev]
3
3
Rated Flow* l/min
[GPM]
Rated Pressure bar
[PSI]
Relief Valve Pressure
Settings**
bar
[PSI]
Shock Valve Pressure
Settings***
bar
[PSI]
Max. Cont. Pressure
in Line T
- standard
- high pressure (H option)
Servoamplifing
Max. Torque w/o
bar
[PSI]
Nm
[lb-in]
Servoamplifing Nm
[lb-in]
Weight kg
[lb]
Dimension A mm
[in]
Type
SPECIFICATION DATA
The HKUSD…/4 is a new design of steering unit withtwo gerotor sets. They are mechanically connected.A switch valve, built between the two gerotor sets,switches between two displacements, one displacementfor manual steering and the total of both displacementsfor powered operations. The switch valve is springreturned to the smaller manual displacement wheninlet pressure falls below 4 bar. Above 4 bar the switchvalve connects both gerotor sets to provide full powereddisplacement.This function permits a higher pressure in the steeringcylinder to be achieved and the vehicle steering atoperation to be easier. gfcnwgtawygtawgliwfiwrygierygerig
18
DIMENSIONS AND MOUNTING DATA
HKUSD.../... /4
STEERING UNITS
*Threaded Ports P min [ ] depth for pipe mounting.15 59.
44 [1.7
3]
2
T
L R
P
DP 16/32, 12 teeth
ANS B92.1-1976, [. 7] depth17 6
103,5 [4.07 ]5
84 [3.3 ]07
45º
45º
91 [
3.5
8]
3
58,5 [2.3 ]03
ø82±0,1[3.2 ±.004]28
B
A
2,8 .110[ ] 35 1.3 87[ ] 44 2[1.73 ]
7 .276[ ] 57 2.2 44[ ] V
ø
[]
44,4
1.7
48
0 -0,2
-0,0
08
60±0,1
5
[2.3
6±.0
06]
2
THREADED PORTS for HKUSD.../4
HKUSD
63
80
100
125
Pos.1
4
The steering units are mangano-phosphatized as standard.
Pos.2
Pos.5
1 2 3 4 6
/ /
Pos.7
Pos.8
omit
P
PC
PS
PC
omit
8
4 -
omit
A
M
140
160
180
190
200
220
225
240
250
260
285
300
325
63 80 100 125
..
.
.
.
.
.
.
.
.
.
..
.
.
80, 100, 125, 150, 170
Pos.4
5
-
mm [in]G1/217 [.67] depth
M22x1,517 [.67] depth
3/4 - 16 UNFO-ring 17 [.67] depth
4 x M10[ ] depth
4 x M10[ ] depth
18 .71
18 .71
4 x 3/8 - 16 UNC15,7 [.62] depth
2 x M10x1[ ] depth
2 x M10x1[ ] depth
16 .63
16 .63
2 x 3/8 - 24 UNF14,2 [.56] depth
A
-
M
code
Ports - P*, T, R, LThread
Column MountingThread - B
Valve MountingThread - V
7
Pos.6
omit
H
Notes: ***
Colour at customer’s request.Non painted feeding surfaces, colour at customer's request.
ORDER CODE for HKUSD...
Pos.3- Displacement code of I Gerotor set(without servo-amplifying)
-st
- 65,6 cm /rev [4.0 in /rev]
- 79,2 cm /rev [4.83 in /rev]
- 99,0 cm /rev [6.04 in /rev]
- 123,8 cm /rev [7.56 in /rev]
3 3
3 3
3 3
3 3
- Displacement code of I +II Gerotor sets(with servo-amplifying)
-st -nd
- Versions
Relief Valve Pressure Settings, bar-
- Version 4 ”Open Center - Non Load Reaction”
- Ports
- Ports
- BSPP (ISO 228)
- SAE (ANSI B 1.1 - 1982)
- Metric (ISO 262)
- Standart
- High pressure
- (Paint)*Option
- No Paint
- Painted
- Corrosion Protected Paint
- Special Paint**
- Special Corrosion Protected Paint**
- Design Series
- Factory specified
19
HYDROSTATIC STEERING UNITS TYPE HKU(S).../5(D)(T)(E)(TE)(TU)
Pipe Mounting
Closed Center - Non ReactionStatic Signal - HKUS.../5T
Dynamic Signal - HKUS.../5DT
L
P T
LS
R
The HKU(S).../5(D)(T)(TU) range expands the steering units family of M+S Hydraulic with
the (static and dynamic
hydraulic connection to the priority valve)
This range is manufactured in two versions; for modularly and pipe mounting and therefore
were developed the two versions of priority (tracing) valves: PRD... and PRT...
HKU.../5 is designed to be connected to priority valves with built-in relief valves for rated flow
up to [ ] PR .../160.
"Closed Center - Non Reaction and Load Sensing Outlet" version
.
160 lpm 42 GPM - T
The control hydraulic circuits of the HKU(S).../5(T) steering units were designed to ensures
minimal energy consumption (energy losses) in various hydraulic systems, such as those of:
fork-lift trucks, agricultural and construction machines and others.
HKU.../5TU is a steering unit at which the ports R and L in neutral position are connected to the drain line T. This scheme
contributes for the fast discharge of the residual pressure in lines Land R, that usually is “locked” when the steering wheel is
jerky released at neutral position. These steering units do not drive directly the steering cylinders, but they are connected to
hydraulic systems in which they drive the flow amplifiers or other devices.
HKUS…/5D(DT)... is a new generation steering unit, where the dynamic flow to LS-line allows easy and smooth control
when starting the steering. Main features are: Low torque of the steering wheel 0,5÷2,0 Nm [4.5÷18 lb-in] at normal
operating conditions; High steering speed, limited only by the operating flow and the pressure of the supplying pump.
Closed Center - Non ReactionStatic Signal - HKU.../5T
L
P T
LS
R
Closed Center - Non ReactionStatic Signal - HKU.../5TU
L
P T
LS
R
M+S Hydraulic produces steering units type HKUS.../5E(5TE) which have additional EL-port. An electro-hydraulic relaycan be mounted on this port, providing control of the hydraulic system.The relay can be pre-set to normally - open (N.O) ornormally - closed (N.C) contacts, with control range from 0,1 to 50 bars.
Closed Center - Non ReactionStatic Signal - HKUS.../5TE
L
P T
LS
EL
R
Modulary Mounting
Closed Center - Non ReactionStatic Signal - HKUS.../5
Dynamic Signal - HKUS.../5D
L P T LS R
Closed Center - Non ReactionStatic Signal - HKUS.../5E
L P T LS
EL
R
Constant oil flow to LS-line at neutral position within
0,45÷0,9 lpm [.12÷.24 GPM]. The unit works in a system
with a dynamic priority valve and is appropriate for
machines with increased energy saving requirements.*For operation in condition of Thermal Shock see the
notes on page .6
HKUS.../5...
STEERING UNITS
20
SPECIFICATION DATA
* Rated Flow at 100 RPM.
***Pressure Settings are at flow rate of [ ] and viscosity
** 6.6Pressure Settings are at flow rate of 25 lpm [ GPM] and viscosity 21 mm /s [105 SUS] at 50 C [122 F],supplied through priority valve.
2 lpm .53 GPM 21 mm /s [105 SUS] at 50 C [122 F].
2
2
° °
° °
Displacement
[ ]
Rated Flow*
[ ]
Rated Pressure
[ ]
LS-Valve Pressure
Settings** [ ]
Shock Valves Pressure
Settings*** [ ]
Max. Cont. Pressure
in Line T [ ]
Max. Torque at
Servoamplifying [ ]
Max. Torque w/o
Servoamplifying
Weight
[ ]
Dimension A
[ ]
cm /rev
in /rev
lpm
GPM
bar
PSI
bar PSI
bar PSI
bar PSI
Nm lb-in
Nm [lb-in]
kg
lb
mm
in
3
3
- standard
- high pressure (H option)
.
.
.
.
.
.
.
.
.
Parameters
Type
100/5...
100/5T
HKUS125/5...
125/5T
175
[2540]
125
1810[ ]
150
2175[ ]
50/5...
50/5T
40/5...
40/5T
HKUSHKUS63/5...
63/5T
HKUS
65,6
4.0[ ]
80/5...
80/5T
HKUS
79,2
4.83[ ]
99,0
6.04[ ]
HKUS
123,8
7.56[ ]
HKUS
160/5...
160/5T
158,4
9.67[ ]
200/5...
200/5T
HKUS
198
12.[ 1]
250/5...
250/5T
HKUS
247,5
15.1[ ]
320/5...HKUS
316,8
19.3[ ]
400/5...HKUS
320/5T 500/5THKU HKUHKUHKUHKUHKUHKUHKUHKUHKUHKU
400/5T 630/5THKU HKU
40
10.6[ ]
396
24.[ 2]
49,5
3.0[ ]
39,6
2.42[ ]
20 290
40 580
[ ]
[ ]
5,7
[12.6]
6,5
[14.3]
5,4
[11.9]
5,3
[11.7]
5,5
[12.2]
5,6
[12.4]
5,8
[12.8]
6,0
[13.2]
6,3
[13.9]
7,0
[15.4]
7,4
[16.3]
120
1065[ ]
50
13.2[ ]
495
30.2[ ]
63
16.6[ ]
623,6
38.05[ ]
8,0
[17.6]
8,7
[19.2]
192
[7.56]
209,3
[8.24]
158,8
[6.25]
178,8
[7.04]
130,8
[5.15]
132,2
[5.20]
133,9
[5.27]
136,2
[5.36]
138,8
[5.47]
142,2
[5.60]
146,8
[5.78]
152,2
[5.99]
168,2
[6.62]
4
1.1[ ]
6
1.6[ ]
8
2.1[ ]
13
3.4[ ]
20
5.3[ ]
25
6.6[ ]
32
8.4[ ]
5
1.3[ ]
10
2.6[ ]
16
4.2[ ]
-with standard springs
-with soft springs (LT option)
3,0 26
1,8 16
[ ]
[ ]
3,0 26[ ]
-
5
[ ] [ ] [ ] [ ] 540
80 100 125 150 17
1160 1450 1810 2175 [2 ]
140 160 180 200 240
[2030] [2320] [2610] [2900] [3480]
DIMENSIONS AND MOUNTING DATA - HKU.../5T(TU)
84 3.307[ ]
58,5 2.303[ ]
ø82±0,1
[ ]3.228±.004
B
103,5 4.075[ ]91 [3.5
8]
3
7 .276[ ] 57 2.244[ ]
18
.7
1[
]
[.22] [.2 depth]48
A
ø
[]
44
,4
1.7
48
2,8 .110[ ] 35 1.3 87[ ] 44 2[1.73 ]
44
1
.73
2[
]
V
T
L R
P
DP 16/32, 12 teeth
17 .669ANS B92.1-1976, [ ] depth
0 -0,2
-0,0
08
60
±0
,15
[2.3
6±.0
06
]2
ø5,6H12x6,3
45º
45º
LS
70 2.7 65[ ]
6 [ ]8,5 2.697
LS
mm [in]
21
The ports are shown in the Table on page 20.
HKU(S).../5...
STEERING UNITS
DIMENSIONS AND MOUNTING DATA - HKUS.../5(D)
45º
45º
B
103,5 [4.075]
84 [3.307]
58,5 [2.303]
91 [
3.5
8]
3
ø82±0,1
[ ]3.228±.004DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.669] depth
VT
L R
P
A
2,8 .110[ ] 35 1.3 87[ ] 44 2[1.73 ]
60±0,1
5
[2.3
6±.0
06]
2
ø
[]
44,4
1.7
48
0 -0,2
-0,0
08
57 2.2 44[ ]7 .276[ ]
44 [
1.7
3]
2
31 [1.220]
DIMENSIONS AND MOUNTING DATA - HKUS.../5T(DT)
44 [
1.7
3]
2
T
L R
P
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.67] depth
103,5 [4.075]
84 [3.307]
45º
45º
91 [
3.5
8]
358,5 [2.303]
B
2,8 .110[ ] 35 1.3 87[ ]
44 2[1.73 ]
7 .276[ ] 57 2.2 44[ ]
ø
[]
44
,4
1.7
48
0 -0,2
-0,0
08
60
±0
,15
[2.3
6±.0
06
]2
V
LS 36 1.417[ ]LS
A
[ ]3.228±.004
ø82±0,1
mm [in]
22
HKU(S).../5...
STEERING UNITS
DIMENSIONS AND MOUNTING DATA - HKUS.../5E
DIMENSIONS AND MOUNTING DATA - HKUS.../5TE
VT
L R
P
EL
A
2,8 .110[ ] 35 1.3 87[ ] 44 2[1.73 ]
44 [
1.7
3]
2
60
±0
,15
[2.3
6±.0
06
]2
ø
[]
44
,4
1.7
48
0 -0,2
-0,0
08
7 .276[ ]
57 2.2 44[ ] 31 [1.220]
50 .969[1 ]
45º
45º
BEL
103,5 [4.075]
84 [3.307]
58,5 [2.303]
91 [
3.5
8]
3
ø82±0,1
[ ]3.228±.004
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.669] depth
55 [2.265]
45º
45º
BEL
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.669] depth
ø82±0,1
[ ]3.228±.004
361.417[ ]
LS
58,5 [2.303]
84 [3.307]
103,5 [4.075]
91 [
3.5
8]
3
55 [2.265]
VT
L R
P
LS
EL
A
2,8 .110[ ] 35 1.3 87[ ]
44 2[1.73 ]
44 [
1.7
3]
2
ø
[]
44
,4
1.7
48
0 -0,2
-0,0
08
60
±0
,15
[2.3
6±.0
06
]2
7 .276[ ]
57 2.2 44[ ]
50 .969[1 ]
Ports - P*, T, R, LThread
G1/2
17 [.67] depth
M22x1,5
17 [.67] depth
3/4 - 16 UNF
O-ring 17 [.67] depth
Column MountingThread - B
4 x M10
18 [.71] depth
4 x M10
18 [.71] depth
4 x 3/8 - 16 UNC
15,7 [.62] depth
Valve MountingThread- V
2 x M10x1
16 [.63] depth
2 x M10x1
16 [.63] depth
2 x 3/8 - 24 UNF
14,2 [.56] depth
LS - Port
G1/4
[ ] depth
G1/4
depth
14 .55
14 [.55]
7/16 - 20 UNF
O-ring 12,7 [.50] depth
code
A
-
M
EL - Port
M10x1
10 [.39] depth
M10x1
10 [.39] depth
7/16 - 20 UNF
O-ring 12,7 [.50] depth
*Threaded Ports P min [ ] depth for pipe mounting.15 .59
mm [in]
23
STEERING
UNITS ORDER CODE for HKUS.../5...
- BSPP (ISO 228)
- Metric (ISO 262)
- SAE (ANSI B 1.1 - 1982)
- Standard
- High pressure
- Standard
- Low
- Factory specified
- BSPP (ISO 228)
- Metric (ISO 262)
- SAE (ANSI B 1.1 - 1982)
- Standard
- High pressure
- Standard
- Low
omit
M
A
omit
H
omit
LT**
40
50
63
80
100
125
160
200
250
320
400
Pos.1
5
Pos.2
Pos.4
H K U
ORDER CODE for HKU.../5T...
40
50
63
80
100
125
160
200
250
320
400
500
630
Pos.1
1 2 3 4 5
5
Pos.2
/ 5 -
6
Pos.3
Pos.4
omit
M
A
Pos.8
omit
Pos.6
omit
LT*
Pos.5
omit
H
7 8
Pos.3
omitD
80 100 125 150 175
Pos. 6
Pos. 7
Pos.11
omit
Pos. 9
Pos. 8
omit
T
Pos.5
omit
E
H K U S
1 2 3 4 5
/ 5
6 7 8
- -
9 1110
- 39,6 cm /rev [ 2.42 in /rev]
- 49,5 cm /rev [ 3.00 in /rev]
- 65,6 cm /rev [ 4.00 in /rev]
- 79,2 cm /rev [ 4.83 in /rev]
- 99,0 cm /rev [ 6.04 in /rev]
- 123,8 cm /rev [ 7.56 in /rev]
- 158,4 cm /rev [ 9.67 in /rev]
- 198,0 cm /rev [12.10 in /rev]
- 247,5 cm /rev [15.10 in /rev]
- 316,8 cm /rev [19.30 in /rev]
- 396,0 cm /rev [24.20 in /rev]
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
- Displacement code (see Specification Data)
- Versions
- Version 5 "Closed Center - Non Reaction andLoad Sensing Outlet"
- Signal Type
- Static Load Signal- Dynamic Load Signal
- Priority Valve Connection
- Modulary Mounting
- Pipe Mounting
- Electric Signal Connection
- Without electric signal connection
- With electric signal connection*
- Displacement code (see Specification Data)
- 39,6 cm /rev [ 2.42 in /rev]
- 49,5 cm /rev [ 3.00 in /rev]
- 65,6 cm /rev [ 4.00 in /rev]
- 79,2 cm /rev [ 4.83 in /rev]
- 99,0 cm /rev [ 6.04 in /rev]
- 123,8 cm /rev [ 7.56 in /rev]
- 158,4 cm /rev [ 9.67 in /rev]
- 198,0 cm /rev [12.10 in /rev]
- 247,5 cm /rev [15.10 in /rev]
- 316,8 cm /rev [19.30 in /rev]
- 396,0 cm /rev [24.20 in /rev]
- 495,0 cm /rev [30.20 in /rev]
- 623,6 cm /rev [38.05 in /rev]
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
- Versions
- Version 5 "Closed Center - Non Reaction andLoad Sensing Outlet"
- Priority Valve Connection
T
TU
- Pipe Mounting (only)- Pipe Mounting (ports R and L in neutral positionare connected to the drain line T)
- LS - Valve Pressure Settings, bar
- Ports
- Max. Cont. Pressure in line T
- Design Series
- Input torque
- Ports
- Max. Cont. Pressure in line T
- Input torque
- Design Series
- Factory specifiedNotes:
** Available only for displacement from 40 to 200.* Colour at customer’s request.*** Non painted feeding surfaces, colour at customer's request.The steering units are mangano-phosphatized as standard.
Pos.10
omit
P
PC
PS
PCS
- Option (Paint)***
- No Paint
- Painted****
- Corrosion Protected Paint****
- Special Paint*****
- Special Corrosion Protected Paint*****
Pos.7
omit
P
PC
PS
PCS
- Option (Paint)**
- No Paint
- Painted
- Corrosion Protected Paint
- Special Paint***
- Special Corrosion Protected Paint***
Notes:
The steering units are mangano-phosphatized as standard.
***************
Available with Static Load Signal only.Available for displacement from 40 to 200 only.Colour at customer’s request.Not for HKUS.../5 and HKUS.../5D.Non painted feeding surfaces, colour at customer's request.
SPECIFICATION DATA
24
HYDROSTATIC STEERING UNITS TYPE HKUS.../5RDT
HKUS…/5RDT is a new generation steering unit with load
sensing dynamic signal and integrated valve functions.
The hydraulic steering unit is applied on all types of agriculture
and construction transportation vehicles which maximum speed
does not exceed 60 km/h.
This sreering unit has low torque and low noise.
HKUS…/5RDT works in a system with a dynamic priority valve
and it is appropriate for machines with increased energy saving
requirements.
The dynamic flow to LS-line allows easy and smooth control
when starting steering.
Closed Center - Load ReactionHKUS.../5RDT
*
***
**Rated Flow at 100 RPM.P 6.6
Pressure Settings are at flow rate of [ ] and viscosity
ressure Settings are at flow rate of 25 lpm [ GPM] and viscosity 21 mm /s [105 SUS] at 50 C [122 F],supplied through priority valve.
2 lpm .53 GPM 21 mm /s [105 SUS] at 50 C [122 F].
2
2
° °
° °
Displacement
[ ]
Rated Flow*
[ ]
Rated Pressure
[ ]
LS-Valve Pressure
Settings** [ ]
Shock Valves Pressure
Settings*** [ ]
Max. Cont. Pressure
in Line T [ ]
Max. Torque at
Servoamplifying [ ]
Max. Torque w/o
Servoamplifying
Weight
[ ]
Dimension A
[ ]
cm /rev
in /rev
lpm
GPM
bar
PSI
bar PSI
bar PSI
bar PSI
Nm lb-in
Nm [lb-in]
kg
lb
mm
in
3
3
- standard
- high pressure (H option)
.
.
.
.
.
.
.
.
.
Parameters
Type
175
[2540]
125
1810[ ]
150
2175[ ]
65,6
4.0[ ]
79,2
4.83[ ]
99,0
6.04[ ]
123,8
7.56[ ]
158,4
9.67[ ]
198
12.[ 1]
49,5
3.0[ ]
39,6
2.42[ ]
20 290
40 580
[ ]
[ ]
5,7
[12.6]
5,4
[11.9]
5,3
[11.7]
5,5
[12.2]
5,6
[12.4]
5,8
[12.8]
6,0
[13.2]
6,3
[13.9]
120
1065[ ]
130,8
[5.15]
132,2
[5.20]
133,9
[5.27]
136,2
[5.36]
138,8
[5.47]
142,2
[5.60]
146,8
[5.78]
152,2
[5.99]
4
1.1[ ]
6
1.6[ ]
8
2.1[ ]
13
3.4[ ]
20
5.3[ ]
5
1.3[ ]
10
2.6[ ]
16
4.2[ ]
-with standard springs
-with soft springs (LT option)
5
[ ] [ ] [ ] [ ] 540
80 100 125 150 17
1160 1450 1810 2175 [2 ]
140 160 180 200 240
[2030] [2320] [2610] [2900] [3480]
HKUS
200/5RDT
HKUS
160/5RDT
HKUS
125/5RDT
HKUS
100/5RDT
HKUS
80/5RDT
HKUS
63/5RDT
HKUS
50/5RDT
HKUS
40/5RDT
3,0 26
1,8 16
[ ]
[ ]
40
50
63
80
100
125
160
200
Pos.1
5R
Pos.2
- 39,6 cm /rev [ 2.42 in /rev]
- 49,5 cm /rev [ 3.00 in /rev]
- 65,6 cm /rev [ 4.00 in /rev]
- 79,2 cm /rev [ 4.83 in /rev]
- 99,0 cm /rev [ 6.04 in /rev]
- 123,8 cm /rev [ 7.56 in /rev]
- 158,4 cm /rev [ 9.67 in /rev]
- 198,0 cm /rev [12.10 in /rev]
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
- Displacement code
- Version
- Version 5R "Closed Center - Reaction"
H K U S
1 2 3 4 5
/ 5R
6 7 8
-D T -
D
Pos.3 - Signal Type
- Dynamic Load Signal
T
Pos.4 - Signal Type
- Piping Mount
Pos.5 - Relief Valve Pressure Settings on LS-line, bar
80, 100, 125, 150, 175
HKUS.../5RDT
STEERING UNITS
25
DIMENSIONS AND MOUNTING DATA
mm [in]
*Threaded Ports Pmin [ ] depth for pipe mounting.15 .59
ORDER CODE for HKUS.../5RDT
44 [
1.7
3]
2
T
L R
P
2,8 .110[ ] 35 1.3 87[ ]
44 2[1.73 ]
7 .276[ ] 57 2.2 44[ ]
ø
[]
44
,4
1.7
48
0 -0,2
-0,0
08
60
±0
,15
[2.3
6±.0
06
]2
V
LS
A
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.669] depth
103,5 [4.075]
84 [3.307]
45º
45º
91 [
3.5
8]
3
58,5 [2.303]
B
LS36 1.417[ ]
[ ]3.228±.004
ø82±0,1
Ports - P*, T, R, LThread
Column MountingThread - B
4 x M10
18 [.71] depth
Valve MountingThread- V
LS - Port
G1/4
[ ] depth14 .55
code
MBO
-
M
A
G1/2
17 [.67] depth
4 x M10
18 [.71] depth
4 x M10
18 [.71] depth
4 x 3/8 - 16 UNC
15,7 [.62] depth
M x1,5
17 [.67] depth
22
M18x1,5
O-ring 17 [.67] depth
3/4 - 16 UNF
O-ring 17 [.67] depth
2 x M10x1
16 [.63] depth
2 x M10x1
16 [.63] depth
2 x M10x1
16 [.63] depth
2 x 3/8 - 24 UNF
14,2 [.56] depth
depth
G1/4
14 [.55]
M12x1,5
O-ring 11,5 [.45] depth
7/16 - 20 UNF
O-ring 12,7 [.50] depth
Pos.6
omit
M
MBO
A
- Ports
- BSPP (ISO 228)
- Metric (ISO 262)
- Metric (ISO 6149-1)
- SAE (ANSI B1.1-1982)
Pos.9
omit
P
PC
PS
PCS
- (Paint)*Option
- No Paint
- Painted
- Corrosion Protected Paint
- Special Paint**
- Special Corrosion Protected Paint**
Pos.10 - Design Series
- Factory specified
Pos.8
omit
LT*
- Input torque
- Standard
- Low
omit
- Standard
- High pressure
Pos.7
omit
H
- Max. Cont. Pressure in line T
Notes: ***
Colour at customer’s request.Non painted feeding surfaces, colour at customer's request.
The steering units are mangano-phosphatized as standard.
9 10
SPECIFICATION DATA
26
HYDROSTATIC STEERING UNITS TYPE HKUL.../5DT
“M+S Hydraulic” introduce a new large size of steering unit HKUL
with Dynamic Load Signal.
“Closed Center - Non
Reaction and Load Sensing Outlet"
70 18.5 ***[ ]
5
[ ] [ ] [ ] [ ] 540
80 100 125 150 17
1160 1450 1810 2175 [2 ]
140 160 180 200 240
[2030] [2320] [2610] [2900] [3480]
10 /5DT00HKUL...
990 60.4[ ]
70 18.5 **[ ]
cm /rev [in /rev]3 3
.
lpm [GPM].
bar [PSI]
bar PSI[ ]
bar PSI[ ]
bar PSI[ ]
Nm lb-in[ ]
Nm [lb-in]
kg [lb]
mm [in]
Parameters
Type
175 [2540]
500/5DTHKUL...
20 290
40 580
[ ]
[ ]
120
1065[ ]
50 [13.2]*
495 [30.2]
63 [16.6]*
623,6 [38.05]
3,0 26[ ]
63 /5DT0HKUL...
8 /5DT00HKUL...
793 48.4[ ]Displacement
Rated Flow
Rated Pressure
LS-Valve Pressure .
Settings
Shock Valves Pressure .
Settings
Max. Cont. Pressure
in Line T
- standard
- high pressure (H option)
Max. Torque at.
Servoamplifing
Max. Torque w/o.
Servoamplifing
Weight
Dimension A
*
*****
Rated Flow at 100 RPMMax. Rated Flow at 87 RPMMax. Rated Flow at 70 RPM
HKUL is a load steering unit specially developed for large
displacement in order to minimize flow loss. HKUL is
extremely suitable for large vehicles, which maximum speed
does not exceed 60 km/h and works together with dynamic
priority valve.HKUL is available in versions with different valves that are
required in hydraulic steering circuit for protection of the
steering unit and steering cylinders.
Closed Center - Non ReactionHKUL.../5DT
Closed Center - Non ReactionHKULS.../5DT
Closed Center - Non ReactionHKULV.../5DT
Closed Center - Non ReactionHKULR.../5DT
268,64 [10.58]
10,8 [23.8]
242,17 [9.54]
8,2 [18.1] 8,9 [19.6]
202 [7.95] 219,3 [8.64]
9,8 21.6[ ]
HKUL.../5DT
STEERING UNITS
27
DIMENSIONS AND MOUNTING DATA - HKUL.../5DT
mm [in]
DIMENSIONS AND MOUNTING DATA - HKULR.../5DT
ø82±0,1[3.2 ±.004]28
58,5 [2.3 ]03
84 [3.3 ]07
103,5 [4.07 ]5
91 [
3.5
8]
3
B
45º
45º
44 [
1.7
3]
2
7 .276[ ] 57 2.2 44[ ]
44 2[1.73 ]35 1.3 87[ ]
A
60±0,1
5
[2.3
6±.0
06]
2
ø44,4
[]
1.7
48
-0,2
-0,0
08
57 2.2 44[ ]7 .276[ ]
2,8 .110[ ]
91 [
3.5
8]
3
ø82±0,1[3.2 ±.004]28
A
44 2[1.73 ]35 1.3 87[ ]
103,5 [4.07 ]5
84 [3.3 ]07
58,5 [2.3 ]03
60±0,1
5
[2.3
6±.0
06]
2
ø44,4
[]
1.7
48
-0,2
36 1.417[ ]
68,5 [2. ]69770 2.7 65[ ]
45º
45º
44 [
1.7
3]
2
-0,0
08 18
[.708]
ø90 [3.5
4]
ø90 [3.5
4]
[.708]
18
B
2,8 .110[ ]
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.67] depth
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.67] depth
mm [in]
*Threaded Ports P min 15 [0.59] depth for pipe mounting.
Ports - P*, T, R, LThread
G1/217 [.67] depth
M22x1,517 [.67] depth
3/4 - 16 UNFO-ring 17 [.67] depth
Column MountingThread - B
4 x M1018 [.71] depth
4 x M1018 [.71] depth
4 x 3/8 - 16 UNC15,7 [.62] depth
Valve MountingThread- V
2 x M10x116 [.63 ] depth
2 x M10x116 [.63] depth
2 x 3/8 - 24 UNF14,2 [.56] depth
LS - Port
G1/4
[ ] depth
depth
14 .55
M12x1,5
14 [.55]
7/16 - 20 UNF
O-ring 12,7 [.50] depth
code
A
-
M
DIMENSIONS AND MOUNTING DATA - HKULV.../5DT
DIMENSIONS AND MOUNTING DATA - HKULS.../5DT
44 [
1.7
3]
2
ø90 [3.5
4]
91 [
3.5
8]
3
ø82±0,1[3.2 ±.004]28
103,5 [4.07 ]5
84 [3.3 ]07
58,5 [2.3 ]03
68,5 [2. ]697
45º
45º
57 2.2 44[ ]7 .276[ ]
60±0,1
5
[2.3
6±.0
06]
2
ø44,4
[]
1.7
48
-0,2
-0,0
08
18
[.708]
A
44 2[1.73 ]35 1.3 87[ ]
70 2.7 65[ ]
B
B
ø90 [3.5
4]
44 [
1.7
3]
2
45º
45º
91 [
3.5
8]
3
ø82±0,1[3.2 ±.004]28
7 .276[ ] 57 2.2 44[ ]
60±0,1
5
[2.3
6±.0
06]
2
ø44,4
[]
1.7
48
-0,2
-0,0
08
44 2[1.73 ]35 1.3 87[ ]
A
[.708]
18
58,5 [2.3 ]03
84 [3.3 ]07
103,5 [4.07 ]5
36 1.417[ ]
HKUL.../5DT
STEERING UNITS
28
2,8 .110[ ]
2,8 .110[ ]
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.67] depth
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.67] depth
29
STEERING
UNITS
H K U L
ORDER CODE for HKUL.../5DT...
500
630
800
1000
- 495,0 [30.20] cm /rev [in /rev]
- 623,6 [38.05] cm /rev [in /rev]
- 793,0 [48.40] cm /rev [in /rev]
- 990,0 [60.40] cm /rev [in /rev]
3 3
3 3
3 3
3 3
Pos.2
1 2 3 4 5
/ 5 -
6
Pos. 8
omit
A
M
T
The steering units are mangano-phosphatized as standard.
Pos.10
Pos.11
omit
P
PC
PS
PCS
omit
Pos. 9
omit
H
7 8
Version
omit
S
R
ManualSteering
Check Valve
ReliefValve
InletCheckValve
CylinderReliefValve
Anti-Cavitation
Valve
5
Pos.3
Pos.5
Pos.4
D
T
80 100 125 150 175
Pos. 6
140 160 180 200 240
Pos. 7
Pos.1
V
D -
9 10 11
Notes: Only for HKULR and HKULSOnly for HKULVColour at customer’s request.Non painted feeding surfaces, colour at customer's request.
**** ******
- (build-in valves)Versions
- Displacement code (see Specification Data)
- Versions
- 495,0 cm /rev [30.20 in /rev]
- 623,6 cm /rev [38.05 in /rev]
- 793,0 cm /rev [48.40 in /rev]
- 990,0 cm /rev [60.40 in /rev]
3 3
3 3
3 3
3 3
- Signal Type
- Priority Valve Connection
- Version 5 "Closed Center - Non Reaction andLoad Sensing Outlet"
- Dynamic Load Signal
- Pipe Mounting
- Design Series
- Factory specified
- No Paint
- Painted
- Corrosion Protected Paint
- Special Paint****
- Special Corrosion Protected Paint****
- Option (Paint)***
- Max. Cont. Pressure in line T
- Standard
- High pressure
- BSPP (ISO 228)
- SAE (ANSI B 1.1 - 1982)
- Metric (ISO 262)
- Ports
- Shock Valves Pressure Settings, bar**
- LS - Valve Pressure Settings, bar*
SPECIFICATION DATA
30
M+S Hydraulic expands its range of hydrostatic steering units with mini steering units,
which are used in lawn and garden machines, minitracktors and municipal vehicles.
HKUM.../4 is open centre steering units in neutral position have open connection
between pump and tank.
HKUM.../4PB g
the the
h
works as standard steering unit with auxiliary port desi ned for flow
providing additional vehicles functions.When the steering wheel is not turned, the flow
will be delivered to port PB. After steering wheel has been turned a part of flow
will be deviated to the steering unit and the flow t rough port PB will be inconstant.
"Open Center - Non Load Reaction"HKUM.../4
"Open Center - Non Load Reaction"HKUMR.../4
"Open Center - Non Load Reaction"HKUMS.../4
"Open Center - Non Load Reaction"
HKUMS.../4PB - Power Beyond"Open Center - Non Load Reaction"
HKUMR.../4PB - Power Beyond"Open Center - Non Load Reaction"
HKUM.../4PB - Power Beyond
HYDROSTATIC STEERING UNITS TYPE HKUM.../4(PB)
cm /rev [in /rev]3 3
.
lpm [GPM].
bar [PSI]
bar PSI[ ]
bar PSI[ ]
bar PSI[ ]
Nm lb-in[ ]
Nm [lb-in]
Parameters
Type
125 [1810]
HKUM...
32/4(PB)
20 290[ ]
80 [708]
3,2 [.85]
31,8 [1.94]
2,3 [5.1]
2,0 [17.7]
Displacement
Rated Flow*
Rated Pressure
Relief Valve Pressure Settings**
Shock Valves Pressure Settings***
Max. Cont. Pressure in Line T
Max. Torque at Servoamplifing
Max. Torque w/o Servoamplifing
Weight, kg [lb]
HKUM...
40/4(PB)
4,0 [1.06]
40 [2.44]
2,4 [5.3]
HKUM...
50/4(PB)
5,0 [1.32]
50 [3.05]
2,5 [5.5]
HKUM...
63/4(PB)
6,0 [1.59]
63 [3.84]
2,6 [5.7]
HKUM...
70/4(PB)
7,0 [1.85]
70 [4.27]
2,65 [5.84]
HKUM...
80/4(PB)
8,0 [2.11]
80 [4.88]
2,7 [5.95]
HKUM...
100/4(PB)
10,0 [2.64]
100 [6.10]
2,9 [6.39]
60 [870] 70 [1015] 80 [1160] 90 [1305] 100 [1450] 110 [1595] 125 [1810]
120 [1740] 130 [1885] 140 [2030] 150 [2175] 160 [2320] 170 [2465] 185 [2683]
Max. recomended oil frow lpm [GPM] 20 [5.3]
2, [5. ]6 7 2, [5. ]7 9 2, [ .2]8 6 2,9 [6.4] 2,95 [6.5] 3,0 [6.6] 3,2 [7.1]
for HKUM.../4...
for HKUM.../4(PB)...
******
Rated Flow at 100 RPM.Pressure Settings are at flow ratePressure Settings are at flow rate of 1 l/min [.26 GPM] and viscosity 21 mm /s [105 SUS] at 50 C [120 F].
2 o o
of 12 l/min [3.17 GPM] and viscosity 21 mm /s [105 SUS] at 50 C [120 F].2 o o
SPECIFICATION DATA
31
HYDROSTATIC STEERING UNITS TYPE HKUM.../5DT
HKUM…/5DT is a steering unit with load sensing dynamic signal and integrated
valve functions.
cm /rev [in /rev]3 3
.
lpm [GPM].
bar [PSI]
bar PSI[ ]
bar PSI[ ]
bar PSI[ ]
Nm lb-in[ ]
Nm [lb-in]
kg [lb]
Parameters
Type
125 [1810]
HKUM...
32/5DT
20 290[ ]
80 [708]
31,8 [1.94]
2,6 [5.7]
2,0 [17.7]
Displacement
Rated Flow*
Rated Pressure
LS-Valve Pressure** .
Settings
Shock Valves Pressure*** .
Settings
Max. Cont. Pressure
in Line T
Max. Torque at.
Servoamplifing
Max. Torque w/o.
Servoamplifing
Weight
HKUM...
40/5DT
40 [2.44]
2,7 [5.95]
HKUM...
50/5DT
50 [3.05]
2,8 [6.2]
HKUM...
63/5DT
63 [3.84]
2,9 [6.39]
HKUM...
70/5DT
70 [4.27]
2,95 [6.5]
HKUM...
80/5DT
80 [4.88]
3 [6.6]
HKUM...
100/5DT
100 [6.10]
3,2 [7.05]
60 70 80 90 100 110 125
[870] [1015] [1160] [1305] [1450] [1595] [1810]
120 130 140 150 160 170 185
[1740] [1885] [2030] [2175] [2320] [2465] [2683]
3,2 [.85] 4,0 [1.06] 5,0 [1.32] 6,0 [1.59] 7,0 [1.85] 8,0 [2.11] 10,0 [2.64]
The flow to LS-line allows easy and smooth control when starting steering.
HKUM…/5DT works in a system with a dynamic priority valve and it is appropriate
for machines with increased energy saving requirements.
"Closed Center - Non Reaction"HKUMS.../5DT
"Closed Center - Non Reaction"HKUMR.../5DT
******
Rated Flow at 100 RPM.The pilot pressure relief valve is set at an oil flow to the priority valve of 12 l/min [3.17GPM]Pressure Settings are at flow rate of 1 l/min [.26 GPM] and viscosity 21 mm /s [105 SUS] at 50 C [120 F].
2 o o
HKUM 32/4
HKUM 40/4
HKUM 50/4
HKUM 63/4
HKUM 70/4
HKUM 80/4
HKUM 100/4
Type
90 [3.54]
93 [3.66]
96 [3.78]
100 [3.94]
103 [4.06]
106 [4.17]
113 [4.45]
A, mm [in]
11,0 [.43]
13,7 [.54]
17,1 [.67]
21,6 [.85]
24,0 [.94]
27,4 [1.08]
34,2 [1.35]
L, mm [in]Type
HKUM 32/4PB(5DT)
HKUM 40
HKUM 50
HKUM 63
HKUM 70
HKUM 80
HKUM 100
/4PB(5DT)
/4PB(5DT)
/4PB(5DT)
/4PB(5DT)
/4PB(5DT)
/4PB(5DT)
A, mm [in]
109 [4.29]
116 [4.57]
119 [4.69]
126 [4.96]
103 [4.06]
106 [4.17]
113 [4.45]
HKUM...
STEERING UNITS
32
OUTLINE DIMENSIONS REFERENCE
mm [in]
Shaft type “K1“
1:20
5x6,5 [.26]DIN 6888
20
[.79]
ø16,52±0,05[.65±.0019]
10,8[.43]
M834 [1.3
4]
6 [.2
4]
min
28
[1.1
]
45o
90 o
4xM611 mm [.43 in] depth
ø5
8 [
2.2
8]
Involute splineB17x14 DIN 5482
4xM8
ø88 [3.4
6]
ø47 [1.8
5]
45 o
ø15 [.59]
45o
5x72 o
6 [.2
4]
LA
ø34 [1.34]
ø66 [2.59]
20
[.79]
9,6
[.3
8]
27 [1.0
6]
2,1
[.083]
5,5
[.22]
12
[.47]
F-F
M5:1
90o ø1,32±0,001
[.052±.00004]
Number of teeth 40
ø16,44±0,07[.65±.0027]
ø17,48±0,04[.69±.0016]
ø19,49±0,09[.77±.0027]
Shaft type “K2“
ø17,92±0,03[.71±.0012]
1:12
5/8-18 UNFANSI B1.1-1982
4 [.1
6]
14
[.55]
30 [1.1
8]
43 [1.6
9]
60 [2.3
6]
6 [.2
4]
Ports - P, T, R, L, EThread
9/16-18 UNF (ORFS)A
code
33
STEERING
UNITS
ORDER CODE for HKUM.../4(PB)...
Pos.1
S
R
CheckValve
in P-port
ReliefValve
ShockValve
omit no build-in valves
- Option
Pos.2 - Displacement code
32
40
- 31,8 cm /rev [1.94 in /rev]3 3
- 40,0 cm /rev [2.44 ]3
in /rev3
50
63
70
80
100
- 50,0 cm /rev [3.05 ]3
in /rev3
- 63,0 cm /rev [3.84 ]3
in /rev3
- 70,0 cm /rev [4.27 ]3
in /rev3
- 80,0 cm /rev [4.88 ]3
in /rev3
- 100,0 cm /rev [6.10 ]3
in /rev3
Pos.3 - Versions
4 - “Open Center - Non Load Reaction”
1 2 4 75
/ -
63 8
H K U M - -
Notes:
Pos.8 - Design Series
omit - Factory specified
Pos.5 - Shaft Versions
omit - Splined B17x14 DIN 5482
K1 - Tapered 1:20, key 5x6,5 DIN 6888
K2 - Tapered 1:12, with 11/16 in-40 serrations
Pos.6 - Ports
A - ORFS main ports - ISO 8434-3
Pos.7 - (Paint)**Option
P
PC
- Painted
- Corrosion Protected Paint
omit - no Paint
4PB - “Open Center - Non Load Reaction”with 5 ports (Power Beyond)
ORDER CODE for HKUM.../5DT
Pos.2 - Displacement code
32
40
- 31,8 cm /rev [1.94 in /rev]3 3
- 40,0 cm /rev [2.44 ]3
in /rev3
50
63
70
80
100
- 50,0 cm /rev [3.05 ]3
in /rev3
- 63,0 cm /rev [3.84 ]3
in /rev3
- 70,0 cm /rev [4.27 ]3
in /rev3
- 80,0 cm /rev [4.88 ]3
in /rev3
- 100,0 cm /rev [6.10 ]3
in /rev3
Pos.1 - Option
Pos.3 - Versions
5D - Version 5 “Close Center - Non Load Reactionand Dynamic Load Signal”
Pos.9 - Design Series
omit - Factory specified
Pos.5 - Relief Valve Pressure Settings [bar]
60 70 80 90 100 110 125
1 2 4 75
/ -
63 8
5DH K U M - -
Pos.6 - Shaft Versions
omit - Splined B17x14 DIN 5482
K1 - Tapered 1:20, key 5x6,5 DIN 6888
K2 - Tapered 1:12, with 11/16 in-40 serrations
Pos.7 - Ports
A - ORFS main ports - ISO 8434-3
Pos.8 - (Paint)*Option
P
PC
- Painted
- Corrosion Protected Paint
omit - no Paint
9
T
Pos.4
- Pipe MountingT
Pos.4 - Relief Valve Pressure Settings* [bar]
60 70 80 90 100 110 125
***
For HKUMR... and HKUMS... only.Colour at customer’s request.The steering units are mangano-phosphatizedas standard.
- Priority Valve Connection
Notes: * Colour at customer’s request.The steering units are mangano-phosphatizedas standard.
S
R
CheckValve
in P-port
ReliefValve
ShockValve
34
VALVE BLOCKS FOR HKU AND XY TYPE BKH...
***
SPECIFICATION DATA
Parameters
Type
BKH1, BKHR BKH2 BKH3 BKH4, BKH5
1602320[ ]
8021.1[ ]
1402030[ ]
1602320[ ]
1802610[ ]
801160[ ]
1001450[ ]
1251810[ ]
1502175[ ]
801160[ ]
1001450[ ]
1251810[ ]
1502175[ ]
2002900[ ]
2002900[ ]
2403480[ ]
- -
- -- -
1,8 2,34.0 5.1
,[ ] , [ ]
1,84.0[ ]
1,84.0[ ]
Rated Flow
Rated Pressure
Relief Valve Pressure Settings*
Shock Valves Pressure
Settings**
Weight
The M+S Hydraulic BKH valves are developed to protect thecomponents of the hydraulic circuit: pumps, steering units andcylinders - from overloads, impacts and cavitation. Some of theiradvantages are: easy integration into any hydraulic circuit, easymounting to the steering unit, and quick and easy hose connections.Depending on the design and the built in valves the BKH valves canbe divided into 6 types: BKH1 ... BKH5 and BKHR, with BKH5designed for XY steering units only. The maximum flow rate is incompliance with the whole range of HKU and XY steering units but nomore than 80 l/min. The pressure settings for the entry relief valvesand the shock valves are presented in the table.
BKH1, BKHR
L
R
T
P
L
R
T
P
BKH2
L
R
T
P
L
R
T
P
BKH3
L
R
T
P
L
R
T
P
BKH4
L
R
T
P
L
R
T
P
BKH5
L
R
T
P
L
R
T
P
DIMENSIONS AND MOUNTING DATA - BKH1, 2, 3, 4
Ports - P, T, R, LThread
G1/2[ ] depth
M22x1,5[ ] depth
20 .80
20 .80
3/4 - 16 UNFO-ring 20 [.80] depth
-
M
A
code
60
2.3
6[
2]
83,5 [3.287]
T
L R
P
45 1.7[ 72]
90 3.54[ 3]
44
[]
1.7
32
83
,53
.[
28
7]
44 [ ]1.732
* Connection to the HKU is done with 2 screws M10x1x40 -8.8 DIN 912 or with 2 screws3/8-24 UNF ANSI B18.3-76, long 1.5''. Tightening torque: 2,5±0,5 daNm [177÷265 lb-in].
lpm
GPM
bar
PSI
bar
PSI
bar
PSI
kg
lb
[ ]
[ ]
[ ]
[ ]
[ ]
Pressure Settings are at flow rate of [ ] and viscosity [ ] at [ ].30 lpm 7.92 GPM 21 mm²/s 105 SUS 50º C 122ºFPressure Settings are at flow rate of 2 lpm [ .53 GPM] and viscosity 21 mm²/s [105 SUS] at 50º C [122ºF].
2x
[]
ø1
7.6
69
*2x
[]
ø11
.43
3
ø4
,76 [
18
7]
.
44 [1.73]
18 .7[ 09]
6,2 .24[ 4]
35
BKH1...5,R
VALVE BLOCKS DIMENSIONS AND MOUNTING DATA - BKHR
Ports - P, T, R, LThread
M18x1,5[ ] depth22 .87
3/4 - 16 UNFO-ring 22 [.87] depth
M
A
code
with built-in valves:
- Input relief valve on line “P”
- Input check (non-return) valve on line “P”
- Shock valves on lines and“R” “L”
- Anti-cavitation valves on lines and“R” “L”
B K H
ORDER CODE
1 2 3 4 5
Pos.1
- -
80 100 125 150
Pos.3
The valve blocks are mangano-phosphatized as standard.
omit
A
M
mm [in]
14
05
.51
[2
]
60
2.3
6[
2]
TL
RP
* [ ] Thru2xø11 .433
49 1.9[ 29]
94 3.7[ 01]8
23
.22
8[
]
38
1[.4
96
]
T
P
R
L
22 .866[ ]
44 1.732[ ]
10
64
.17
3[
]
DIMENSIONS AND MOUNTING DATA - BKH5
T
L
R
P82 [
3.2
]2
8
52 [
2.0
]4
7
4 [
.1]
57
7,5
[.
]2
95
49 [
1.9
]2
9
63 [
2.4
8]
0
2 x
ø8
,5[.
35
]
*2x ø
13
,5[.
53
]1
4xø20,5 [.8 ]
0,5 depth
07
[.02]
11[.43 ]3
38 [1. ]496
21[.8 ]27
14 [.55 ]1
13,5[.53 ]1
39 [
1.5
]3
5
82 [3.2 ]28
85,6 [3.37 ]0
31[1.22 ]0
44 [1.73 ]2
11
[.4
3]
3
Ports - P, T, R, LThread
M16x1,514 [.55] depthM
code
* Connection to the HKU is done with 2 screwsM10x1x40 -8.8 DIN 912 or with 2 screws 3/8-24 UNFANSI B18.3-76, long 1.5''.
Tightening torque: 2,5±0,5 daNm [177÷265 lb- in ].
17
[.6 ]69
* Connection to the XY is done with 2screws M8x1x40 -8.8 DIN 912 . Tighteningtorque: 2,5±0,5 daNm [177÷265 lb - in ].
R 1 2 3 4 5
- Ports***
- BSPP (ISO 228)
- SAE (ANSI B 1.1 - 1982)
- Metric (ISO 262)
Pos.4
omit
P
PC
- Options (Paint)****
Painted
Corrosion Protected Paint
- No Paint
-
-
Pos.5
omit
- Design Series
Factory specified-
Notes: **********
Versions - for ; - for .
That does not concern version and .
For Port size see drawings on page 19 and 20.
Colour at customer's request.
R, 1, 2, 3, 4 HKU 5 XY
2 3
- Versions*
Pos.2 - Relief Valve Pressure Settings, bar**
20,5
[.807]
36
PRIORITY VALVES FOR HKUS.../5... TYPE PR...The Priority Valves distribute and trace the hydraulic flow from the supply pump of the
hydraulic system to the hydraulic components which control and run the vehicle.The Priority Valves are used only with the HKUS.../5 (T) hydrostatic steering units.
When connected, the steering unit and the priority valve represent sophisticated hydraulictracing system that controls the flow in both main pipelines of the hydraulic system (theworking and control one) at any time of its operation.
As a static signal, the "LS" signal must be used in systems with circuit stability. Theconnection between the PRT, PRTA priority valves and the HKUS.../5T steering units hasto be as short as possible, but should not exceed [ ] (for iron pipe with[ ] internal diameter). When a rubber hose is used this length ha be evenhorter.
(D)
s tos
1,5 m 4.92 ft 4 mm.157 in.
Priority valves with dynamic signal work in a system with dynamic hydrostatic steeringunits type HKUS.../5D (5DT).
PR...40
Pipe MountingModulary Mounting
Static signal
PRT 40,80,120/..., PRTA 40,80/...
CF EF
LS
P
CF EF
LS
P
Dynamic signal
PRDD 40,80/...
Static signal
PRD 40,80/...
CFL
L
EF
LS RT
T
R
P
CFL
L
EF
LS RT
T
R
P
PR...80
2 6 10 14 18
20
140
60
100
0
2
4
6
8
10
P-EF[bar]
Min.
4 bar
7 bar
0 20 40 60 80 Qp[l/min]
Qp
[GPM]
P-EF[PSI]
12
14
180
2 4 6 8 10
20
140
60
100
0
2
4
6
8
10
P-EF[bar]
P-EF[PSI]
Min.
4 bar
7 bar
0 10 20 30 40 Qp[l/min]
Qp
[GPM]
12
14
180 10 bar
PRТ...120
CF EF
LS
P
PP
10 bar
10 bar
0
2
4
6
8
10
P-EF[bar]
1 05
1 00
200
12
16
Qp[l/min]
14
P-EF[ ]PSI
5 10 15 20 25 30
Qp[ ]GPM
7 bar
4 bar
Min.
0 20 40 60 80 100 120
Static signal
PR 0/...
with External Port
TE12
Dynamic signal
PR DT ,120 ,PRTAD40,80/...40,80 /...
50
250
0
37
DIMENSIONS AND MOUNTING DATA - PRD(D) 40, 80/...
* Connection to the HKUS.../5 ... is done with 2 screwswith 2 screws .
Tightening torque: [ ].
(D) x45M10x1 -10.9DIN 912 or 3/8-24 UNF ANSI B18.3-76, 1.75'' long
4,5±0,5 daNm 360 ± 440 lb-in
87
3.4
[2
5]
60
2.3
6[
2]
T
R
EF
P
L
87 3.4[ 25]
123 4.84[ 3]
78
3.0
7[
1]
20
.7[8
7]
35
1.3
8[
7]
EF
Ports - P, EFThread
Ports - T, R, LThread
G1/2[ ] depth
M22x1,5[ ] depth
18 .71
18 .71
7/8 - 14 UNFO-ring 18 [.71] depth
G3/8
M18x1,5
18 [.71] depth
18 [.71] depth
3/4 - 16 UNFO-ring 18 [.71] depth
A
-
M
code
PRD , PRT
PRIORITY VALVES
PRD, PRT
PRIORITY VALVES
SPECIFICATION DATA
P EF CFL R LS T ,
- pump, - excess flow, - control flow (first priority oil flow),- left, - right, - load sensing, - tank ( for PRD only)PP - pilot pressure L R, and T - (D) .
R L
44
1.73[ 2]
42
1.6
5[
4]
T P
44
1.73[ 2]
*
ParametersType
PRD(D), PRT(D) PRTA(D)
4010.6[ ]
8021.1[ ]
458[ ]
458[ ]
7101.5[ ]
7101.5[ ]
10145[ ]
10145[ ]
2503625[ ]
2103045[ ]
2804061[ ]
Rated Flow
[ ]
Control Spring Pressure
]
Max. Pressures in Oil Ports:
P, EF
R, L
T
Weight
[ ]
[
LS
PP
lpm
GPM
bar
PSI
CF
bar
[PSI]
kg
lb
.
.
.
.
2,25
[4.96]
1,
2.
3
[ 87]
2103045[ ]
209[ ]2 0
PRT(D)(E)
1231.7
0[ ]
458[ ]
7101.5[ ]
10145[ ]
2,1
4.6[ ]
2103045[ ]
mm [in]
-
mm [in]
DIMENSIONS AND MOUNTING DATA - PRT(D) 40, 80/...
38
PRD , PRT
PRIORITY VALVES
PRD, PRT
PRIORITY VALVES
DIMENSIONS AND MOUNTING DATA - PRTA(D) 40, 80/...
78
3.0
7[
1]
20
.7[8
7]
35
1.3
8[
7]
EF
CF
22 [.866]
42
1.6
5[
4]
P
22 [.866]
0,1.004[ ]
LS
2 x [ ]ø17 .669
1.
11
43
[]
2 x
.41
ø
[ ]
10,5
3
87
3.4
3[
]
60
2.3
6[
]
CF
EF
P
87 3.43[ ]
1 24 5.6[ ]
Ports - P, EFThread
Port - CFThread
LS - Port
G1/2[ ] depth
M 22x1,5
18 .71
18 [.71] depth
7/8 - 14 UNFO-ring 18 [.71] depth
mm
mm
-
M
A
code
G1/2
M 22x1,5
18 [.71] depth
18 [.71] depth
3/4 - 16 UNFO-ring 18 [.71] depth
mm
mm
G1/4[ ] depth14 .55
G1/414 [.55] depth
7/16 - 20 UNFO-ring 12,7 [.50] depth
mm
mm
Ports - P, EFThread
Port - CFThread
LS - Port
G1/2[ ] depth
M 22x1,5
18 .71
18 [.71] depth
7/8 - 14 UNFO-ring 18 [.71] depth
mm
mm
-
M
A
code
G1/2
M 22x1,5
18 [.71] depth
18 [.71] depth
3/4 - 16 UNFO-ring 18 [.71] depth
mm
mm
G1/4[ ] depth14 .55
G1/414 [.55] depth
7/16 - 20 UNFO-ring 12,7 [.50] depth
mm
mm
P
19,7 [.7 ]76 20,3 [. ]799
CF
LS
EF
P
142 [5.591]
19,7 [.776]
S=24 [.945]
42 [1.654]
40
[1.5
75]
25
[.9
84
]
80
[3.1
50]
CF EF
LS
ø8,5
[.335]
20,5 [.807]
41 [1.614]
mm [in]
PRD , PRT
PRIORITY VALVES
PRD, PRT
PRIORITY VALVES
DIMENSIONS AND MOUNTING DATA - PRT...120/...
P EF
LS
PP
56 [2.205]
28 [1.102]
52
[2.0
47]
38.4 [1.51 ]218.7 [.7 ]36
10 [.39 ]4
66
[2.
]598
S=19[.7 ]48
S=19[.748]
[. 5]24 94
[ ]48 1.890
50
72
[2.
4]
93
[66
]3.
0
23
xø
8,7
[.34
]
116 [4.570]
138 [5.433]
57,1 [2.248]29.3 [1.154]
CF24 [.9 5]4
ø34 [1.3 ]
0,8 [.032] depth
39
39
Ports - P, EFThread
Port - CFThread
LS, PP - Ports
G3/4[ ] depth
M27x2
20,5 .81
20,5 [.81] depth
1 1/16 - 12 UNO-ring 20,5 [.81] depth
18,5 .73
M18x1,518,5 [.73] depth
3/4 - 16 UNFO-ring 18,5 [.73] depth
G1/2[ ] depth 12,5 .49
M12x1,512,5 [.49] depth
7/16 - 20 UNFO-ring 12,5 [.49] depth
G1/4[ ] depth
A
-
M
code
40
PRIORITY VALVES FOR HKU S .../5T... TYPE PRT( ) ...160/...
Static signal with External Pilot160/...PRTE
CF EF LS
P T
PP
Dynamic signal160/...PRTD
CF EF LS
P T
Static signal160/...PRT
CF EF LS
P T
PR...160/...P-EF[PSI]
0
2
4
6
8
10
P-EF[bar]
20
140
60
100
4
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160
18012
14
Qp[l/min]
Qp
[GPM]8 12 16 20 24 28 32 36 40 42
SPECIFICATION DATA
ParametersType
Rated Flow
[ ]
Control Spring Pressure
[ ]
Max. Pressures in Oil Ports:
P, EF
CF
[ ]
PP
Weight
[ ]
lpm
GPM
bar
PSI
bar
PSI
T
kg
lb
LS
Standar Reli f Valve Pressure Settings
bar [PSI] *
d e
.
.
.
.
PRT(D), PRTE
16042.3[ ]
458[ ]
7101.5[ ]
10145[ ]
35076
50[ ]
2103045[ ]
210[3045]
175[2540]
2103045[ ]
15[ ]217
P EF CFLS T PP
- pump, - excess flow, - control flow (first priority oil flow),- load sensing, - tank, - pilot pressure
* - Adjusted valve pressure from [ ] t [ ]upon customer request.
80 1160 210 bar 3045 PSIbar PSI o
The Priority Valves PRT...160 have built-in pilot
pressure relief valve, protects the steering
unit against excess pressure. The
a
which
ive
ports of the .
pilot pressure
relief valve operates with the Shuttle of the Priority
valve to limit the maximum steering pressure P-T
measured across the steering unit
4 bar
Min.
7 bar
10 bar
4,4
[9.70]
0
PRT
PRIORITY VALVES
DIMENSIONS AND MOUNTING DATA - PRT(D)(E)160/...
41
2x [ ]
[ ] depth
ø42 1.654
0,8 .031
99 3.[ 898]
40 1.57[ 5]
P
122 4.80[ 3]
CFEF59 2.32[ 3]
32
1.2
6[
0]
32,8 [1.291] 75 2.95[ 3]
177,5 6.9[ 88]
24 .945[ ]
35 1.3 8[ 7 ] 63 2.48[ 0]
130 5.1[ 18]
59 2.32[ 3]
75
2.9
53
[]
mm [in]
65 2.5[ 59]
32,5 [1.280]
13
2,5
5.2
ma
x[
17
]
12
14
.76
4[
]
PP
60
,52
.38
[2
]
60
,52
.38
[2
]3
51
.38
[7
]
2x
[]
9.3
54
ø
T
LS2
8,5
1.1
2[
2]
Ports - P, EFThread
Port - CFThread
LS, PP, T - Ports
G3/4[ ] depth
M27x2
20,5 .81
20,5 [.81] depth
1 1/16 - 12 UNO-ring 20,5 [.81] depth
18,5 .73
M18x1,518,5 [.73] depth
3/4 - 16 UNFO-ring 18,5 [.73] depth
G1/2[ ] depth 12,5 .49
M12x1,512,5 [.49] depth
7/16 - 20 UNFO-ring 12,5 [.49] depth
G1/4[ ] depth
A
-
M
code
PR...
PRIORITY VALVES
42
Notes:
P R
ORDER CODE
D
T
TA
Pos.1
1 2 3 4 5
omit
D
E*
Pos.2
/
Pos.3
-
6
4 7 10
Pos.4
7
Pos.5
Pos.6
Pos.7
omit
The priority valves are mangano-phosphatized as standard.
omit
M
A
80 1 0**2
omit
P
PC
40 160**
- No Paint
- Painted
- Corrosion Protected Paint
- [Paint]***Option
******
For PRT 1 0/... PRT 160/... onlyFor PRT onlyColour at customer’s request.
2 and
- Mounting
- Modularly Mounting
- Pipe Mounting (Model 1)
- Pipe Mounting (Model 2)
- Signal Type
- with Static signal
- with Dynamic signal
- with Static signal External Pilotand
- Rated Flow, l/min
- Control Spring Pressure , bar
- Ports
- BSPP (ISO 228)
- Metric (ISO 262)
SAE (ANSI B 1.1 - 1982)-
- Design Series
- Factory specified
43
SPECIFICATION DATA
UVM...
P T
The M+S Hydraulic UVM Torque Amplifiers amplifythe applied torque to the control shaft and thus easethe running
- fork-lift trucks and construction machinery.
of various transport vehicles such as:
- agricultural and wood working machines;
- road rollers and road cleaning machines;
* Rated Flow at 100 RPM** Pressure Settings are at Rated Flow (as in the table ) and viscosity
[ ] at [ ].21 mm /s 105 SUS 50 C 122 F2 ° °
TORQUE AMPLIFIERS TYPE UVM...
Parameters
Type
160100
UVM UVM
99,0
6.04[ ]
158,4
9.67[ ]
10
2.6[ ]
80
708[ ]
100
1... 2
14.5...29[ ]
0,35...0,5
[31...44]
0,35...0,5
31...44[ ]
1,6...2,5
[ ]23.2...36.3
16
4.2[ ]
70
[1015]
70
1015[ ]
20
[178]
20
178[ ]
120
1062[ ]
100
20
290[ ]
20
290[ ]
5,8
12.8[ ]
6,2
13.7[ ]
Displacement
[ ]
Rated Flow*
[ ]
Rated Pressure**
[ ]
Input Torque
[ ]
Max. Input Torque
Torque Output at [ ]
Pressure Drop between P and T
at Rated Flow [ ]
Max. Speed of Rotation at
Rated Flow and Pressure RPM
Max. Continuous Pressure
in Line T [ ]
Weight
[ ]
n
cm /rev
i /rev
lpm
GPM
bar
PSI
daNm
lb-in
daNm
[lb-in]
70 bar 1015 PSI Nm
[lb-in]
bar
PSI
bar
PSI
kg
lb
3
3
The totally transferred power in terms of output torque is up to 1,1 kW [1.47 HP].
The UVM torque amplifiers with their simple design, consisted of a pump and anamplifier, ensure 40 times higher output torque than the applied one. The amplifying isachieved as follows; by rotating the input shaft to the left or right the spool and thebushing are displaced, and the hydraulic flow enters the system turning the gerotor set,which transfers the already amplified torque to the output shaft.
One advantage of the UVM torque amplifier is that it allows manual steering in case ofengine (pump) failure.
,
44
DIMENSIONS AND MOUNTING DATAT O R Q U E
A M P L I F I E R S
DimensionsType
100UVM
143,3
5.64[ ]
181,2
7.13[ ]
A
[ ]
L
[ ]
mm
in
mm
in
160UVM
151,3
5.96[ ]
189,2
7.45[ ]
Ports - P, TThread
Column MountingThread - B
Port MountingThread - V
G1/2[ ] depth
M22x1,5
17 .67
17 [.67] depth
3/4 - 16 UNFO-ring 17 [.67] depth
4 x M10[ ] depth
4 x M10
18 .71
18 [.71] depth
4 x 3/8 - 16 UNC15,7 [.62] depth
2 x M10x1[ ] depth
2 x M10x1
16 .63
16 [.63] depth
2 x 3/8 - 24 UNF14,2 [.56] depthA
-
M
code
U V M
ORDER CODE
- 99,0 [6.04] cm /rev [in /rev]
- 158,4 [9.67] cm /rev [in /rev]
100
160
3 3
3 3
Pos.1 - Displacement code
Pos.2 - Ports
1 2 3 4
Pos.3
Pos.4 - Design Series
omit
P
PC
PS
PCS
omit - Factory specified
Notes: * Colour at customer’s request.** Non painted feeding surfaces, colour at customer's request.
omit - BSPP (ISO 228)
- Metric (ISO 262)
- SAE (ANSI B 1.1 - 1982)
M
A
The steering units are mangano-phosphatized as standard.
mm [in]
44
[1
.73
2]
T P
DP 16/32, 12 teeth
ANS B92.1-1976, 17 [.669] depth
103,5 [4.075]
84 [3.307]
45º
45º
91 [
3.5
83
]
58,5 [2.303]
ø82±0,1
[3.228±.004]
B
A
2,8 .11[ 0] 35 1.3 8[ 7 ] 44 [1.732]
7 .2[ 76] 57 2.2 4[ 4 ] V
ø
[]
44
,4
1.7
48
-0,0
08
L
2 .079[ ] 32
[1.26 ]0ø
048 [1.8
9]
ø22,1
73±0,0
17
.873±.0
007
[]
D
0 -0,2
60±0,1
5 [2.3
62±.0
06]
12,7 .500[ ]
15,8 .622[ ]
D
F ø2
3
[.957
]
4,
+0,
13
-0,1
6
+ 0
051
. - 0
06
3.
ø8±0,08
[.315±.0032]
F : Woodruff key3/16" x 3/4"SAE J502
- No Paint
- Painted
- Corrosion Protected Paint
Corrosion Protected
- Special Paint**
- Special Paint**
- Option (Paint)*
Modul
Number of Teeth
Pressure Angle
Diametral Pitch
1.5875
12
30
16/32
0
DP
Involute Spline Data
m
45
STEERING COLUMNS TYPE KK...
The M+S Hydraulic KK Steering Columns transfer the torque from the steering wheel of the vehicle to
the HKU, HKUS or other steering units of the same class. The KK steering columns consist of a pipe in
which the control shaft is centred.
DIMENSIONS AND MOUNTING DATA
SPECIFICATION DATA
L
[ ]
Weight
[ ]
mm
in
kg
bl
.
.
Parameters
Type
KK 75 KK 150 KK 390 KK 441 KK 750
783.07[ ]
168,26.62[ ]
39315.47[ ]
777,830.62[ ]
44117.36[ ]
0,751.65[ ]
1,12.43[ ]
1,94.19[ ]
3,37.28[ ]
5,0511.13[ ]
Permissible loads o the steering column are as follows:
Max. torque applied to the
steering wheel 24 daNm [2124 lb-in ]
Max. bending moment 20 daNm [1770 lb-in]
Max. axial load 100 daN [225 lbs]
The steering column must be additionally supported when the length L exceeds 150 mm [5.91 in].
f
Note: The length L depends on the transport vehicle construction.regarding other lengthsFor more information and shaft versions, please refer
to M+S Hydraulic.
Type KK
Type KKF
mm [in]
82
3.2
28
[]
ø 2882 3.2[ ]45
0
82 3.228[ ]
4 x 11 [.43 ]ø 3
ø 8±0,0013,04G - G
ø23,47
.924[
]
ø20,4
0.8
03
[]
ø1
7
.66
9[
] ø19,0
5.7
50
[
]
[ ].120
450
82
3.2
28
[]
ø 2882 3.2[ ]
82 3.228[ ]
4 x 11 [.43 ]ø 3 L
G
G
15,2 .598[ ]
6,5 .2 65[ ]
ø5
[52 ]
44,
1.7
+0,2
+0,0
08
ma
xø 353
91
.5[
]m
ax
ø 353
91
.5[
]
L
G
G
5,5 217[ ].
6,5 .2 65[ ]
ø5
[52 ]
44,
1.7
+0
,2
+0
,00
8
TYPE I
42 [1.654]
29 [ 2]1.41
32 [1.260]
48 [1.890]
ø23,2
Taper 1:20
M18 x
1,5
M18 x
1,5
TYPE II
B
A
A
B
5-0,03
B - B
5-0,03
14
-0,2
A - A-0,0
4
[.913 ]
-.0016
[.197 ]-.0012
[.5
51 ]
-.0
00
8
12,6
[.4
96 ]
+.0
07
9
+0
,2
Taper 1:20
[.808 ]
-.0012
ø20,5
3-0
,03
Woodruff key5 x 6,5
DIN 6888
Woodruff key5 x 7,5
DIN 6888
[.197 ]-.0012
46
KKS T E E R I N G
C O L U M N S
42 1.65[ ]
100 3.94[ ] min
50
1.9
7[
]
SOUND SIGNAL CONNECTION
E Option EE Option
42 1.65[ ]
76 3.0[ ]
50
1.9
7[
]
ø2
0,4
G
G
ø2
2 [
.86
6]
15 [.59]3 [.118]
26 [ ]1.024
300
600
39 [1.535]
[ø1
6,5
]
+0
,01
9+
0,0
01
[.6
5 ]
+.0
00
75
+.0
00
04
[.8
03
]
ø16 .63[ ]
15+1
300
12
0
ø1
6,5
+0
,02
7
[.6
5 ]
+.0
011
0
[.59 ]+.039
ø 8±0,0013,04G - G
ø23,47
.924[
]
ø20,4
0.8
03
[]
ø1
7
.66
9[
] ø19,0
5.7
50
[
]
[ ].120
Shaft End Part
Order No: 46415 001 00
Modul
Number of Teeth
Pressure Angle
Diametral Pitch
1.5875
12
30
16/32
0
DP
Involute Spline Data
m
mm [in]
SHAFT VERSIONS
15
51 [2.008]
30 [ 1]1.18
Taper 1:16
M18 x
1,5
TYPE III
C
C
ø1,35±0,001
ø1
9,1
2
ø20,5
5 -0,2
1
-0,1
3 1
ø22,2
2 -0,0
96
C - C
Number of teeth 36
[.591][.827 ]
-.0
01
2
[.875
]
[.809[.7
53
]
[.0532]
ø21
-0,0
3
-.0038
-.0
02-0
,05
47
Taper 1:16
TYPE VI
54 [2.126]
38 [1.496]
ø20,1
3/4
-16 U
NF
I
I
4,76
I - I
-0,0
3
[.791 ]
-.0012
+0,025
[.187 ]+.001
13,2
-0,2
[.52 ]
-.0079
Woodruff key3/16 x 7/8
DIN 6888
KKS T E E R I N G
C O L U M N S
14
11,2
43 [1.693]
39 [1.535]
24,9[.980]
ø21,5
5ø
21,8
4
Taper 1:19,26
M18 x
1,5
M18 x
1,5
TYPE IV
TYPE V
D
D
D
D
ø1,587±0,0025
ø2
0,7
2±
0,0
5
ø21,7
9±0,0
5
ø24
,12±
0,02
5
D - D
Number of teeth 36
[.551]
+0
,05
[.8
]49
-.0
02
Taper 1:19,26[.441]
24,9[.980]
[.95
±.00
1]
[.858±.0
02]
[.8
16
±.0
02
]
[.0625]
-0,0
4
[.860 ]
-.0016
mm [in]
]-.
005
-.008
48
KKS T E E R I N G
C O L U M N S
mm [in]
24,9
10,9±0,1
ø22
,173
±0,0
17
ø9,
5±0,
08
TYPE IX
[.374
±.00
32]
[.873
±.00
07]
[.429±.004]
[.980]
TYPE VIII
45 [1.772]
12,9±0,1[.509±.004]
16±0,1[.630±.004]
ø22,1
73±0,0
17
ø8
KK - K
K
+0,0
36
[.315 ]
+0,0
36
[.873±.0
007]
4,76 +0,025
[.187 ]+.001
24,3
+0,1
3-0
,16
[.957 ]
+.0
051
-.0063
Woodruff key3/16 x 3/4
SAE J502
TYPE VII
60,5 [2.382]
40,4 [1.591]
18,25 [.719]
ø19,3
±0,0
5
Taper 1:3,34
5/8
-18 U
NFJ
J
ø1
7,9
±0
,05
ø0,86±0,001J - J
Number of teeth 48
[.760±.0
02]
[.0339]
[.787
]-.
0035
ø20
-0,0
9
[.749
]-.
002
ø19,0
2-0
,05
[.7
05
±.0
02
]
TYPE XIII
40 [1.574]
22 [.866]
6,5 [.255]
ø8
+0,1
5
[.3
15 ]
+0,0
06
ø1
9
[.7
48
]ø
20
-0,0
07
-0,0
28
[.7
87
]-0
,0003
-0,0
011
49
STEERING COLUMNS TYPE KK ...M
DIMENSIONS AND MOUNTING DATA
The M+S Hydraulic KKM Steering Columns transfer the torque from the steering wheel of
the vehicle to the HKUM or other steering units of the same class. The KKM steering columns
consist of a pipe in which the control shaft is centred.
SPECIFICATION DATA
Note: The length L depends on the transport vehicle construction.regarding other lengthsFor more information and shaft versions,
please refer to M+S Hydraulic.
Type
KK 1M 65 KK 3M 55
1656.496[ ]
35513.976[ ]
L, mm[in]
Length
Involute spline dataA17x14 DIN5482
D-D
ø58±0,2[2.28±.0079]
ø70 [2.756]
4xø
6,6
[.2
6]
8±0,5[.315±.019]
14±0,5[.55±.019] L±0,5 [.019]
ø3
5+
0,2
[1.3
8 ]
+.0
079
D
4 [.157]
Dm
ax
ø3
9 [
1.5
4]
5:1
ø14 [.5
5]
ø14
,4 [.
57]
ø17 [.67]
50
KKMS T E E R I N G
C O L U M N S
SHAFT VERSIONS
TYPE S2
B-B
ø1,32±0,001[.052±.000039]
control ball
R0,2[.0079]
Numberof teeth 40
ø16,4
4±0,0
7[.
647±.0
028]
ø17,4
8±0,0
4
[.688±.0
016]
ø19
,52±
0,04
[.769
±.00
16]
4 46'19"o +6"
1:12
ø7
,92
±0
,03
.70
6±
.00
11
81
[]
14[.55]
28,5[1.122]
57[2.244]
5/8
-18
UN
F-2
A
B
B
TYPE S3
C-C
ø2
0,7
2±
0,0
5[.
81
6±
.00
19
7]
ø1,587±0,0025[.062±.000098]
Numberof teeth 36
ø21,7
9±0,0
5
[.858±.0
0197] ø24,1
2±0,0
25
[.949±.0
0098]
14[.55]
24,9[.98]
C
M1
8x1
,5-6
g
43[1.69]
ø2
1,5
5+
0,0
5
[.8
48 ]
+.0
019
2 58'20"o +16"
1:19,26
C
TYPE S1
ø10,6-0,2
[.417 ]-.0079
5-0
,03
[.1
97 ]
-.0
011
8
A-A
M1
4x1
,5
18[.709]
52[2.047]
A
A
1:20
ø6
,52
±0
,05
.65
±.0
01
91 [
]
2 51'45"o +12"
mm [in]
KKMS T E E R I N G
C O L U M N S
ORDER CODE KK
omit
E
EE*
K K
Pos.1
Pos.4
1 2 3 4 5
I, II, III, IV, V, VI, VII, VIII, IX, XIII
Pos.3
Notes:
The steering columns are yelow galvanized as standard.
6
Pos.2
omit
F
ORDER CODE KKM
Pos.1 - Length, mm [in] (acc. to table)
Pos.2 - Shaft Extensions
K K M
1 2 3 4
S1, ,S2 S3
The steering columns are yelow galvanized as standard.
The main technical features correspond to the standard steering columns type KK.
OrderingS T E E R I N G
C O L U M N S
51
Pos.5
Pos.6
omit
P
PC
omit
- No Paint
- Painted
- Corrosion Protected Paint
- Option (Paint)**
- Design Series
- Factory specified
Pos.3
Pos.4
omit
P
PC
omit
- No Paint
- Painted
- Corrosion Protected Paint
- Option (Paint)*
- Design Series
- Factory specified
***
For steering column's length L>150 mm [5.9 in] only.Colour at customer’s request.
Notes: * .Colour at customer’s request
- Mounting Flange
- Flange without Tabs
- Flange with Tabs
- (acc. to table)Length, mm
- Shaft Extensions
- (Option)Signal Connection
- without electric signal connection
- with one electric signal connection
- with two electric signal connection
For column type KKM
Tightening torque for bolts [ ]M6 5 1331, daNm lb-in
For column type KKF
Tightening torque for bolts [ ]3 daNm lb-in266
teering column type KKF and steering
unit must be assembled with nothing standing
between them. Use two bolts through
mounting bracket and two bolts through
just the steering column.
The s the
Two Bolts
or x (a+1.2) in.
M10x(a+30) mm
3/8-16 UNC
Mounting Bracket
Two Boltsor x .75 in.
M10x20 mm3/8-16 UNC
ø82±0,1 28±.0039[3.2 ]Bolt Circle
a
ø[
]
55 2.165
ø82±0,1 28±.0039[3.2 ]
Bolt Circle
For assembling the Steering column to
the Steering units use four bolts through
mounting bracket.
Four Bolts or x(a+20)M10 3/8-16 UNC
ø82±0,1 28±.0039[3.2 ] Bolt Circle
Tightening torque for bolts [ ]3 m 266daN lb-inMounting Bracket
a
ø[
]
55 2.165
InstallingS T E E R I N G
C O L U M N SINSTALLING
For column type KK
52
Minimum Clearance at Assembly
Tightening torque for
the nut on the steering
wheel connection:
[ ]
4±0,5 daNm
35±310 lb-in
Steering column
Steering wheel hub [ ] min1,6 .63
mm [in]
Four Bolts x 01M6
ø58±0,1 2.283±.0039[ ] Bolt Circle
Mounting Bracket
Four Bolts x(a+ )9M8
ø88±0,1 3.465±.0039[ ] Bolt Circle
a
ø [ ]70 7562.
Tightening torque for bolts [ ]M8 2,0 177daNm lb-in
The steering column type KKM must be assembled
directly to the steering unit by using four bolts M6
without any plate between them. The steering unit
and column are assembled to the mounting bracket
by using four bolts M8. .
APPLICATION(SIZINGAND STEERING SYSTEM DESIGN PROCESS)
Calculate approximate kingpin torque (M ).
Double M if steered wheels are powered.
M = Kingpin torque in [ ].
G = Vehicle weight on steered axle [ ] (usemaximum estimated overload weight).
= Coefficient of friction (use Chart № 1, dimensionless )
determined by B (see Diagram 1).
B = Nominal width of tyre print [ ](see Diagram 1).
Rubber tyres on dry concrete.
STEP ONE:
Note:
L
L
L
,
/
daNm
daN
№
m№
= Kingpin offset. The distance between tyre centerline
intersection at ground and kingpins centerline
intersection at ground in m [ ] (see Diagram№1).
lb-in
lbs
in
in
�
l
l
,
Diagram 2№
GENERAL APPLICATION AND SPECIFICATION INFORMATION
Diagram 1№
B
l
Chart 1№
0,7
0,6
0,5
0,4
0,3
0,2
0,1
�
0,2 0,4 0,6 0,8 1,0 1,2
l B/
53
STEP TWO:Calculate approximate cylinder; force-area-stroke-volume.
FORCE
STROKE
AREA
F =
F = Force required [ ] to steer axle.
M = Kingpin torque in [ ] from step one. Double
M if steered wheels are powered.
r = Effective radius Arm [ ] is the minimum distancefrom the centerline of the cylinders minimum andmaximum stroke points parallel to the kingpin centerpivot. This is not the physical length of the radius Arm(see Diagram 2 and Chart 2).
A=
A = Cylinder area for axle cylinder set [ ].
F = Force required from step two force formula [ ].
P = Hydraulic pressure [ ] use following percentageof relief valve setting by amount of load on steeredaxle. Severe load 25% - medium load 55% - no load75% .
daN
daNm
mm
№ №
№№
, cm
, daN
bar
lbs
lb-in
in
in
lbs
PSI
L
L
2 2
�
H = Stroke [ ].Calculate stroke of cylinder using Diagram 2 andChart 2 as sha t.
, cm in
f
Chart 2№
r ma
x.
r min
.
�
H
H =2 r . sinmax.�
2
ML
r
F
�P
r = r . cosmin. max.�
2
M = GL . �8
2+ lB
2
HG
Weight MLKingpin
RadiusArm
ActualLength
A A
V
r
MinimumEffective
Radius Arm
F
VOLUME
Note:
STEP THREE:
Selecting displacement of hydrostatic steering unit.
V = H .A
V = Volume. The total amount of oil required to move the
cylinder rod(s) through the ent re stroke [ ].H = Stroke [ ].
A=Area [ ].For differential cylinders it is important to calculate
average cylinder volume for step three using belowformula.
At this point determine number of steering wheelrevolutions desired for your application to steer the wheelsfrom one side to the other (lock to lock). Depending on thetype of vehicle and its use, this will vary from 3 to 5 turns.
i ,,
cmcm
, cm
3
2
inin
in
3
2
DISPLACEMENT
Note:
STEP FOUR:
Calculate approximate minimum and maximumsteering circuit flow requirements.
FLUID DATA:
Note:
V =
V = Displacement [ ]
V = Volume of oil [ ].= Steering wheel turns lock to lock.
After completing the above displacement calculation,choose the hydrostatic steering unit indisplacement size that incorporates circuit you require.Recalculate the number of steering wheel turns using thedisplacement of selected standard hydrostatic steering unitoutlined above. Use the formula shown below.
=
V = Volume of oil, [ ].n = Steering wheel turns lock to lock.
For differential cylinders applications the cylindervolume will be different for left and right turns - thismeans the value steering wheel turns lock to lock)will vary when turning to the left or right.
Q =
Q = Steering circuit flow, [ ].V = Unit displacement, [ ]
N = Steering wheel input speed, RPM.Recommended steering speed is 50 to 100 .
Many variables are involved in sizing the pump. We suggestthat the manufacturer test and evaluate fordesired performance.
To insure maximum performance and life of the Hydrostaticsteering units, use premium quality hydraulic oils. Fluidswith effective quantities of anti-wear agents or additives arehighly recommended. If using synthetic fluids consult thefactory for alternative seal materials.
Normal operating temperature range from [ ]to [ ].Minimum operating temperature [ ].Maximum operating temperature [ ].
Extended periods of operation at temperature of 60 Cand above will greatly reduce life of oil due tooxidation and shorten life of product.
D
D , cm rev
, cm
cm
lpmcm /rev
+30 C +85 F+60 C 140 F
-40 C -40 F+80 C +176 F
3
3
/ in /rev .
in
in
GPMin /rev
3
3
3
n
n
n (
RPM
closest standardy
should the
the thewill the the
3
D
3
0 0
0 0
0 0
0 0
3
GENERAL INFORMATION
0
�
�
Viscosity
Temperature
Viscosity at normal operating temperature should be
approx. 20 mm /s [100 SUS]. Viscosity range 10 - 300
mm /s [60 - 1500 SUS].
2
2
54
Vn
V
VD
DIAMETERAfter the cylinder set area is determined, the cylinderdiameter can be calculated.
D = Inside diameter of cylinder [ ].d = Road diameter of cylinder [ ].
Choose type of cylinder arrangement and formula shownfor that type.
,,
cmcm
inin
D d
DifferentialCylinder
Cross ConnectedCylinders
Note:D
d2
≤ 0,15
D d
BalancedCylinder
OpposedCylinder
D Dd
VD . N
Unit Conversion forImperial or [1000] Metric
D =�
+ d24A
V =avg. (2.D2 2- )d
4H .
STEERING
UNIT
D =�
+2A d
2
2
D =�
+ d24A
D =�
4A
MOUNTING UNITSAll hydrostatic steering units should be installed for ease of
access. It is recommended that the steering unit be located
outside the vehicle cabin.It is important that no radial axial load be applied to the
hydrostatic steering unit input shaft. or all radial and
axial loads must be absorbed by the steering column or
other operating device supplied by the vehicle
manufacture .Ports on the steering cylinder(s) should face upward to
prevent damage.During installation of the hydrostatic steering unit,
cleanliness is of the utmost importance. Pipe plugs should
be left in place during mounting and only removed when
hydraulic lines are to be connected.
Some
s
r
� FiltrationThe maximum degree of contamination per ISO 4406 orCETOP RP is:- 20/17 open center units- 19/16 closed center and load sensing- 16/12 priority valvesReturn line filtration of 25 nominal (40 - 50 absolute)
or finer is recommended.In extremely dusty conditions filtration of 10 absolute
should be used.
� �
�
m m
m
START UPAll air must be purged from system before operating unit. It isextremely important that any external lines or units with loadsensing or priority feature be completely bled. Lines going toand from cylinders as well as lines to and from pump bepurged of all air. It is recommended that a 10-15 filter be
used between pump and steering unit before start up.
m�
M 10
M 10 x 1
Mountingbolts
Mounting bolts
Tightening torquedaNm [lb - in]
3/8 - 16 UNC 3,0 ± 0,5 230 310÷[ ]
6,5 ± 0,5 540 620÷[ ]
3,0 ± 0,5 230 310÷[ ]
Fluid connections
CONVERSIONS
TORQUE TIGHTENING VALUES
to convert inches and millimeters:
to convert gallons per minute andliters per minute:
1 in = 25,4 mm1 mm = .03973 in
1 GPM = 3,785 lpm1 lpm = .2642 GPM
to convert pounds per square inch and bar:
to convert pounds-inch and newton-meters:
1 PSI = 0,0689 bar1 bar =14 51 PSI
1 = 0,113 Nm1 Nm = 8.85 lb
.
lb-in-in
55
G 3/4
G 1/4
G 1/2
G 3/8
M 22 x 1,5
M 18 x 1,5
Fluidconnection metal
edgecopperwasher
aluminumwasher
O - ring
Max. tightening torque[ ]daNm lb-in
M 10 x 1
1 18,0 [ 593]
4 350,0 [ ]
7,0 [620]
10 885,0 [ ]
10 885,0 [ ]
8,0 [708]
4 350,0 [ ]
3,5 [309]
13,0 [1150]
3,5 [309]
5,0 [442]
8,0 [708]
8,0 [708]
7,0 [620]
3,0 [265]
STEERING
UNIT
7/16 - 20 UNF
9/16 - 18 UNF
3/4 - 16 UNF
7/8 - 14 UNF
2,0 [180]
5,0 [442]
6,0 [531]
9,0 [796]
4,5 [398]
5,5 [486]
9,0 [796]
2,0 [180]
5,5 [486]
6,5 [575]
1 1/16 - 12 UN 12,0 [1062]
M+S Hydraulic warrants, that its products, supplied directly to original equipmentmanufacturer, authorized distributor or other customer, will be free of defects in material orworkmanship at the time of shipment from M+S Hydraulic and will conform to the productstechnical documentation (drawings and specifications) under sale agreement with Buyer.
This warranty will apply only to defects appearing within applicable Warranty period,mentioned below. If Buyer notifies M+S Hydraulic within the Warranty period about anysuch defects, M+S, at its sole option will replace or repair the defective products or theirparts found by M+S Hydraulic to be defective in material or workmanship.
THE FOREGOING LIMITED WARRANTY ISAVAILABLE ONLY IF “M+S HYDRAULIC”IS PROMPTLY NOTIFIED IN WRITTEN OF THE ALLEGED DEFECT AND DOES NOTCOVER FAILURE TO FUNCTION CAUSED BY DAMAGE TO THE PRODUCT,IMPROPER INSTALLATION, UNREASONABLE USE OR ABUSE OF THE PRODUCT,FAILURE TO PROVIDE OR USE OF IMPROPER MAINTENANCE OR USUAL,DEGRADATION OF THE PRODUCT DUE TO PHYSICAL ENVIRONMENTS OF ANUSUAL NATURE. THE FOREGOING REMEDIES ARE THE SOLE AND EXCLUSIVEREMEDIES AVAILABLE TO CUSTOMER. To facilitate the inspection, M+S Hydraulic mayrequire return of the product/part, which Buyer claims to be defective.
M+S Hydraulic shall not be liable for labor costs or any other expenses incurred duringthe disassembling or reinstalling of the product/part.
In case the claimed products are returned to M+S Hydraulic in bad condition: dirty,disassembled, with damaged or missing parts during transportation, the warranty will beconsidered as not applicable and the products will not be liable to repair.
The Warranty period is limited to 24 consecutive months (2 years) fromthe date of production of the product.
If the product is repaired in M+S Hydraulic during its warrantyperiod, the warranty period of the repaired item shall continue for the balance of originalWarranty period or for a period equal to 50% of the original new product Warranty period,whichever is later.
The Warranty period for Spare parts is 12 consecutive months (1 year)from the dispatch date of such parts from M+S Hydraulic.
LIMITATION OF LIABILITY M+S Hydraulic's liability for claim of any kind, for loss ordamage arising out of, connected with or resulting from an order, or from the performanceor branch thereof, or from the design, manufacture, sale delivery, operation or use of any ofits products shall be limited to, at M+S 's sole option, replacement, repair of any defectiveproduct or the issuance of a credit to Customer against any future purchases. Cashrefunds will not be made under any circumstances and Customer will not be entitled torecover any damages of any kind against M+S Hydraulic, including but not limited toincidental or consequential damages, whether direct or indirect, known or unknown,foreseen or unforeseen.
Warranty periods
New products:
Repaired products:
Spare parts:
WARRANTY
68, Kozloduy St., 6100 Kazanlak, BulgariaTel.: ++359 431 65167
++359 431 64271Fax: +359 431 64114
E-Mail: [email protected]: http://www.ms-hydraulic.com