16h renr4197-02
TRANSCRIPT
RENR4197-02
16Page,BJS
RENR4197-02
October 2004
16H Motor Grader
Hydraulic System
ATS1-UP
©2004 Caterpillar
All Rights Reserved
Printed in U.S.A.
FWD
Signal LineLine for Pump to the
Fan Speed Solenoid
Vent Line to the
Combination Valve
Line to the Fan
Drive Motor from
the Makeup Valve
Line to the Makeup Valve
from the Fan Drive Motor
Line to the
Makeup valve
from the Pump
Line to the
Hydraulic Tank
from the
Makeup Valve
Tank Return LineTap
NumberDescription
Schematic
Location
BB C-9
C-12
B-8
Implement & Steering Load Sensing Signal Pressure
Tap Locations
Pressure, Sampling, and Sensor
CC Pump Supply Pressure (Implement / Steering)
AA Pump Output Pressure (Fan)
DescriptionPart
Number
Machine
Location
Schematic
Location
Cover
101-9346
Cylinder Gp 9T-8944 5
Cylinder Gp 9T-3312 6
Cylinder Gp 9T-3206 7
Cylinder Gp 121-9244
12
Cylinder Gp 165-2507 8
Cylinder Gp 165-2506
11
10
9
Cylinder Gp (2) 9T-3106 4
3
F-13, G-1
Cylinder Gp (2) 9T-3050
2
Manifold - Left 102-8385
Manifold - Right 102-6238
Motor Gp - Gear 224-7040 13
Motor Gp - Gerotor 9T-5977 14
Pump Gp - Metering
Pump Gp - Piston 184-7448
15
Pump Gp - Piston(Implement & Steering) 177-7517 17
16
Swivel Gp 173-1011 20
Tank Gp & Filter 207-2410 21
Valve Gp - Check 175-0447 22
Valve Gp - Combination
9T-5957 23
24
25
26
27
28
29
30
31
B-10
B-9
F-11
Switch As - Pressure 230-5771 19 B-6
Sensor Gp - Pressure 167-1709 18 B-5
C-13
C-7
229-7155
Valve Gp - Control 107-0560
Valve Gp - Control 107-0554
Valve Gp - Control 107-0562
Valve Gp - Control 107-0555
Valve Gp - Control 107-0558
Valve Gp - Control 107-0565
Valve Gp - Control 107-0556
Valve Gp - Control 107-0563
Valve Gp - Mounting &
(Fan Speed Solenoid) 193-5765 32
D-1, D-14,I-14
G-11
F-4
G-12
F-3
G-8
G-7
F-5, F-6
D-8
D-6
B-5
G-10
B-5
E-6
E-9
E-5
E-11
E-13
E-2
E-12
E-3
C-11
Valve Gp - Pump Control
(Pressure & Flow Compensator)
(for Hydraulic Fan Pump)104-3122 34 C-9(for Implement & Steering Pump)
168-2210 33 C-10
Valve Gp - Shuttle 131-0753
Valve Gp - Unit Test 4 (LH)
(Implement Control Valve Manifold) 104-8658
35
Valve Gp - Unit Test 4 (RH)
(Implement Control Valve Manifold) 104-8676
36 E-14
C-8
E-1
Accumulator Gp (2) 160-9413
37
Cylinder Gp - Ripper 113-5264
38
39
Pump Gp - Electric Drive(Secondary Steering) 123-8915 40
Valve Gp - Check 9T-6146 42
Valve Gp - Control 107-0559 43
Valve Gp - Relief 9T-8071 45
44
Valve Gp (2) - Mounting &(Blade Cushion Solenoid Valve) 112-2240
Valve Gp- Check 9T-1013 41
G-2, G-14
J-13
A-6
C-7
I-13
A-7
F-2, F-13
A-7
Inst - Test 6E-3165
Component Locations
Misc Ref
Attachments
DescriptionPart
Number
Machine
Location
Schematic
Location
(Secondary Steering)
(Ripper)
(Secondary Steering)
(Secondary Steering)
(Blade Cushion)
(Wheel Lean)
(Side Shift)
(Right Blade Lift)
(Left Blade Lift)
(Circle Drive)
(Center Shift)
(Blade Tip)
(Articulation)
(Fan Drive)
(Fan Drive)
(Hydraulic Fan)
(Steering)
111-0491
1
E-7Note A
222-3771Note B
(Circle Drive)
(Hydraulic Fan)
(Wheel Lean)
Steering (RH)
Steering (LH)
(Side Shift)
(Center Shift)
(Blade Tip)
(Blade Lift)
(Articulation)
Accumulator - Steering 248-6252 B-6
Note A
Note C
Note B
Machine Component Locations
1
34
34
42
23
23
23
18
22
13
3316
32
Combination Valve Combination Valve
Hydraulic & Steering System
Hydraulic Fan Drive
CC
BB
BB
AA
BB
CC
AA
Implement
Drain Lines
Implement
Supply Lines
Implement
Signal Lines
Steering Pump
Supply
8 9
10
14
20
44
4
3028 36
2 2511
27
24 25 26 27 28
29 30 31 43
2 26 2912 24 31 37
22
18
36 37
23
40 41
45
33
34
42
15
3
7
5
35
16
38
17
32
21
6
13
AA
CCBB
39
191
ALT.
side dependent on machine arrangement.
The Following Control Valves may be located
or (RH) machineon either (LH)
Alternate Location
for some models.
Note A: Used on 16H(1-215).
Note B: Used on 16H(216-UP).
Note C: Used on 16H(216-221).
ONE POSITION TWO POSITION THREE POSITION
VENTED PRESSURIZED RETURN ABOVE FLUID LEVEL RETURN BELOW FLUID LEVEL
LINES CROSSING LINES JOINING
TWO-WAY THREE-WAY FOUR-WAY
SPRING CONTROL VALVES RESTRICTION LINE RESTRICTION
(FIXED)
2-SECTION PUMP
MAIN AUX.
SPRING
(ADJUSTABLE)
VARIABILITY LINE RESTRICTION
(VARIABLE)
LINE RESTRICTIONVARIABLE and PRESSURE
COMPENSATED
PRESSURE
COMPENSATION
PUMP: VARIABLE and
PRESSURE COMPENSATED
ENERGY TRIANGLES
HYDRAULIC PNEUMATIC
MEASUREMENT
PRESSURE TEMPERATURE FLOW
ROTATING SHAFTS
UNIDIRECTIONAL BIDIRECTIONAL
PUSH-PULL LEVER PEDALGENERAL MANUAL PUSH BUTTON SPRING
MANUAL CONTROL SYMBOLS
HYDRAULIC MOTORS
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
HYDRAULIC PUMPS
FLUID STORAGE RESERVOIRS
CROSSING AND JOINING LINES
VALVE ENVELOPES VALVE PORTS
BASIC COMPONENT SYMBOLS
FLUID CONDITIONERPUMP or MOTOR
FLUID POWER SYMBOLS
FIXED
DISPLACEMENT
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
BIDIRECTIONAL
VALVES
PILOT CONTROL SYMBOLSRELEASED PRESSURE
EXTERNAL RETURN INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED COMPLETE INTERNAL
SUPPLY PRESSURE
ACCUMULATORS
SPRING LOADED GAS CHARGED
SOLENOID
or MANUALSOLENOID
and PILOT
SOLENOID and
PILOT or MANUAL
COMBINATION CONTROLS
SOLENOID SERVO THERMAL DETENT
HYDRAULIC AND PNEUMATIC CYLINDERS
DOUBLE ACTINGSINGLE ACTING
BASIC
SYMBOL
SPRING
LOADED
CHECK VALVES
TWO
POSITION
INFINITE
POSITIONING
FLOW IN ONE
DIRECTION
FLOW ALLOWED IN
EITHER DIRECTION
THREE
POSITION
CROSS
FLOWPARALLEL
FLOW
INTERNAL PASSAGEWAYS
NORMAL POSITION
A B
P T
A B
P T
SHIFTED POSITION INFINITE POSITION
CONTROL VALVES
ATTACHMENT
MANUAL SHUTOFF
SHUTTLE PILOT
CONTROLLED
Hydraulic Symbols (Electrical)
Electrical Symbols Table
325-AG135 PK-14
Circuit IdentificationNumber
Wire Color Wire Gauge
Harness identification code
This example indicates
wire 135 in harness "AG".
325-PK-14
Wire Gauge
Wire Color
Circuit Number
Identification
Wire Number Identification Codes
Current Standard
Previous Standard
Electrical Schematic Example Hydraulic Schematic Example
325-PK
Wire ColorCircuit Number
Identification
B A
Wire
Wire
(EXAMPLE VALVE)
Current Standard
Transducer(Fluid)
Transducer(Gas / Air)
G
Generator
Electrical WirePressure Switch
MElectric Motor
Pressure Switch
(Adjustable)
Temperature Switch
T
PressureSymbol
TemperatureSymbol
LevelSymbol
FlowSymbol
Electrical Symbols (Electrical)
RENR4197-02
16Page,Color4,BJS
A
C
B
D
E
F
G
H
I
J
A
C
B
D
E
F
G
H
I
J
14 13 12 11 10 9 8 7 6 5 4 3 2 1
14 13 12 11 10 9 8 7 6 5 4 3 2 1
LINE PATTERNS
Drain / Return Lines
Component Group
Pilot / Load Sensing Pressure
Pressure Line
Attachment
Air Line
CALLOUTS
Taps (Pressure, Sampling, Sensor) by letter
Components by number1
YY
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
Implement & Steering Pump Output.
Secondary Steering Pump Output.
Steering Metering Pump Output and
Cylinder Circuit.
Supply Line.
Drain / Return Line.
Ripper Cylinder Circuit.
Signal Line
Blade Tip Cylinder Circuit.
Hydraulic Fan Pump Output.
Steering (Circle Drive) Control Circuit.
Side Shift Cylinder Circuit.
Blade Lift Cylinder Circuits.
Articulation Cylinder Circuit.
Center Shift Cylinder Circuit.
Wheel Lean Cylinder Circuit.
THIS SCHEMATIC IS FOR THE 16H Motor Grader
Components are shown installed on a fully operable machine with the key and engine
off and transmission shifter in neutral.
Part #: 172-9362 CHG03
AA
CC
BBTANK GPFILTER &207-2410
COVERLEFT101-9346
COVERLEFT101-9346
VALVE GPUNIT TEST 4(LEFT IMPLEMENTCONTROL VALVEMANIFOLD)104-8658
VALVE GPCONTROL(LEFT BLADE LIFT)107-0558
CYLINDER GP(BLADE LIFT)9T-3106
VALVE GPCONTROL(SIDE SHIFT)107-0556
SWIVEL GP173-1011
CYLINDER GP(SIDE SHIFT)9T-3206
CYLINDER GP(BLADE TIP)9T-8944
VALVE GPCONTROL(BLADE TIP)107-0554
MANIFOLDLEFT102-8385
PUMP GPMETERING(STEERING)
NOTE A111-0491
NOTE B222-3771
CYLINDER GPSTEERING (LH)165-2507
CYLINDER GPRIPPER113-5264
CYLINDER GPSTEERING (RH)165-2506
MANIFOLDRIGHT102-6238
VALVE GPCONTROL(ARTICULATION)107-0560
VALVE GPCONTROL(CENTER SHIFT)107-0562
VALVE GPCONTROL(WHEEL LEAN)107-0563
VALVE GPCONTROL(RIGHT BLADELIFT)107-0565
CYLINDER GP(CENTER SHIFT)9T-3312
ACCUMULATOR GP(BLADE CUSHION)160-9413
VALVE GPMTG &(BLADE CUSHIONSOLENOID)112-2240
VALVE GPCONTROL(RIPPER)107-0559
CYLINDER GP(WHEEL LEAN)121-9244
CYLINDER GPARTICULATION9T-3050
VALVE GPCONTROL(CIRCLE DRIVE)107-0555
VALVE GPMTG &(FAN SPEEDSOLENOID)193-5765
PUMP OUTPUTPRESSURE
VALVE GPPUMP CONTROL168-2210
VALVE GPPUMP CONTROL104-3122
PUMP GPPISTON(HYDRAULICFAN)184-7448
PUMP GPPISTON(IMPLEMENT &STEERING)177-7517
SIGNALLINEPRESSURE VALVE GP
CHECK(SECONDARYSTEERING)9T-6146
VALVE GPCOMBINATION
NOTE A9T-5957
NOTE B229-7155
VALVE GPCHECK(SECONDARYSTEERING)9T-1013
PUMP GPELECTRIC DRIVE(SECONDARY STEERING)123-8915
SENSOR GPPRESSURE(FAN DRIVE)167-1709
VALVE GPCHECK(FAN DRIVE)175-0447
MOTOR GPGEAR(HYDRAULICFAN)224-7040
COVERRIGHT101-9346
VALVE GPUNIT TEST 4(RIGHT IMPLEMENTCONTROL VALVEMANIFOLD)104-8676
VALVE GPRELIEF(SECONDARYSTEERING)9T-8071
ADAPTER
VALVE GPSHUTTLENOTE C131-0753
PUMPSUPPLYPRESSURE
MOTOR GPGEROTOR(CIRCLE DRIVE)9T-5977
DCBA
E KJHGF
BLADE LIFT SIDE SHIFT CIRCLE DRIVE BLADE TIP ARTICULATION CENTER SHIFT WHEEL LEAN BLADE LIFT
BLADE CUSHION
ATTACHEMENTBLADE CUSHION
ATTACHMENT
HYDRAULIC FAN PUMP IMPLEMENT / STEERING PUMP
STEERING
RELIEF VALVE
PRESSURE & FLOW
COMPENSATOR VALVE
PRESSURE & FLOW
COMPENSATOR VALVE
SIGNAL
RESOLVER VALVE
STEERING
PRIORITY VALVE
SIGNAL
PURGE VALVE
SIGNAL
RELIEF VALVE
IMPLEMENT
RELIEF VALVE
SECONDARY STEERING
HYDRAULIC PUMP
RIPPER
EDCBA
CYLINDER GP(BLADE LIFT)9T-3106
ACCUMULATOR GP(BLADE CUSHION)160-9413
VALVE GPMTG &(BLADE CUSHIONSOLENOID)112-2240
NOTE A: Used on 16H(1-215).
NOTE B: Used on 16H(216-UP).
NOTE C: Used on 16H(216-221).
SWITCH ASPRESSURE230-5771
ACCUMULATOR GPSTEERING248-6252