358AK Parts Catalog

358AK Back to Back Servo Pump

2 EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-Tm003-E April 2004

358AK Back to BackServo Piston Pump

Table of Contents

358AK Back to Back Servo Piston Pump Assembly DrawingsFront Pump & Housing Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Center Manifold Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Rear Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7Center Manifold Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Low Pressure Valve, Relief Sub-Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Rotating Sub-Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Valve Plate Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Relief Valve & Drain Port Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Drive Shaft & Gerotor Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Charge Pump Adapter Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Servo Controller Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Serial Number Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3

2

26

15

29

2930

31

32

33

28

28

41

34

44

22

24

43

60

64

66

61

63

65

1617

84

1

72400-583

72400-583

2

43

5

9

810

6

1-1

EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

358AK Back to BackServo Piston PumpFront Pump & Housing Assembly

Parts Drawing

*The Servo assembly belowis typical of a righthand rotation with porting out ofthe left side.

4EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

36

4546

37 42

46

38

40

39

4546

46

4546

46

4546

45

46

45

46

45

4645

73

9900266-003(A5)

See page 7

358AK Back to BackServo Piston PumpCenter Manifold Assembly

Parts Drawing

5 EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

358AK Back to BackServo Piston PumpRear Pump Assembly

47

17

1615

64

65

62

63

23

35

44

25

43

43

72400-583

72400-583

5148

50

49

48

52

49

27

2

7

53

54

56

2

66

60

57

55

58

59

58

59

58

59

89

10

54

3

84

Parts Drawing

Parts List

6EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

358AK Back to BackServo Piston Pump

ITEM PART NUMBER QTY DESCRIPTION ADDTIONAL ASSEMBLY PAGES

1 4999100-xxx 1 Housing Sub-Assembly (Front)1-1 4997530-003 1 Housing Sub-Assembly (Front) (Optional)2 72400-621 4 Gasket, Cover Plate3 72400-771 2 Plate, Cover4 16048-672 8 Washer5 16147-310 8 Screw, Cap6 113684-001 1 Servo Piston Sub-Assembly (Front)7 113684-001 1 Servo Piston Sub-Assembly (Rear)8 16254-6 2 Washer, Seal9 16254-26 2 Washer10 16024-6 2 Nut, Jam15 72400-651 2 Plate, Cover16 16048-672 8 Washer17 16147-310 8 Screw, Cap22 72400-677 1 Camplate Sub-Assembly (Front)23 72400-677 1 Camplate Sub-Assembly (Rear)24 72400-585 1 Follower, Servo Piston (Front)25 72400-585 1 Follower, Servo Piston (Rear)26 4996984-001 1 Shaft, Drive (Front) (See page 11)27 4996985-001 1 Shaft, Drive (Rear) (See page 11)28 16078-18 2 Ring, Retaining (Front)29 74308-100 2 Race, Thrust (Front)30 74308-101 1 Bearing,Thrust (Front)31 16048-319 1 Washer (Front)32 16253-18 1 Seal, Shaft (Front)33 16077-32 1 Ring, Retaing (Front)34 Kit, Rotating Subassembly (Front) (See page 9)35 Kit, Rotating Subassembly (Rear) (See page 9)36 499853-001 1 Manifold, Center Sub-Assembly (See page 10)37 Valve, High Pressure Relief Sub-Assembly (A1) (See page 10)38 Valve, High Pressure Relief Sub-Assembly (B1) (See page 10)39 Valve, High Pressure Relief Sub-Assembly (A2) (See page 10)40 Valve, High Pressure Relief Sub-Assembly (B2) (See page 10)41 Valve, Plate (RH Front) (See page 9)42 Valve, Plate (RH Rear) (See page 9)43 16028-304 4 Pin, Dowel44 72400-626 2 Gasket, Housing (Front & Rear)45 106013-038 8 Washer46 4999354-012 8 Screw, Cap47 4997532-001 1 Housing Sub-Assembly (Rear)48 16078-18 2 Ring, Retaining (Rear)49 74308-100 2 Race, Thrust (Rear)50 74308-101 1 Bearing,Thrust (Rear)51 16048-319 1 Washer (Rear)52 16077-32 1 Ring, Retaining (REAR)53 16007-14 1 O-Ring54 4996904-001 1 Plate, Shadow Pocket

7 EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

358AK Back to BackServo Piston Pump

Parts List (con’t)

ITEM PART NUMBER QTY DESCRIPTION ADDTIONAL ASSEMBLY PAGES

55 16015-59-90 1 O-Ring56 1 Gerotor Sub-Assembly See Page 1157 1 Charge Pump Adapter Sub-Assembly See Page 1258 106013-038 4 Washer59 16136-623 4 Screw, Cap60 72400-631 2 Gasket, Control Housing61 1 Manual Servo Control Sub-Assembly (Front) See Page 1362 1 Manual Servo Control Sub-Assembly (Rear) See Page 1363 16147-314 12 Screw, Cap64 16246-431 2 Key65 4997134-001 2 Handle, Control66 16041-406 2 Screw, Set67 16334-001 1 Label, Self Adhesive Identification73 16103-308 1 Plug Subassy76 16007-17 1 O-Ring78 16048-72 2 Washer79 16136-813 2 Screw, Cap84 4999408-xxx 4 Orifice, 5/16-24 Screw

8EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

358AK Back to BackServo Piston PumpCenter Manifold Parts

36

43

43

9900266-003

CENTER ASSEMBLY PART NUMBER IDENTIFICATION

ITEM PART NO. QTY. DESCRIPTION

36 4997126-001 1 Manifold, Center Sub-AssemblyA5 9900266-003 1 See Chart Below43 16028-304 4 Dowel Pin

ITEM PART NO. QTY. DESCRIPTION

A5-1 9900266-003 1 Poppet ValveA5-3-2 16015-3 1 O-ringA5-3 72400-659 1 Plug, Sub-AssemblyA5-3-1 16133-10 1 O-RingA5-4 16048-597 6 ShimsA5-5 4998533-001 1 Spring, CompressionA5-6 4998532-001 1 Poppet

LOW PRESSURE VALVE, RELIEF SUB-ASSEMBLY (A2)

A5-3-2A5

A5-6

A5-5

A5-4A5-3-1

A5-3

9 EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

Rotating Sub-AssembliesItem 34 – Rotating Kit Assembly

Items 41, 42 – Valve Plate Identification

1

2 3

5

4

6

78

9

7

ITEM 34 – ROTATING KIT ASSEMBLY

ITEM PART NO. QTY DESCRIPTION

34 70300-603 1 40.6 cm3/r [2.48 in3/r]** 70400-703 1 49.2 cm3/r [3.00 in3/r] 1 NSS 1 Piston Assembly2 NSS 1 Shoe Retainer3 NSS 1 Shoe Retainer Pivot4 NSS 1 Retainer5 NSS 1 Cylinder Barrel6 NSS 1 Pins7 NSS 1 Washer8 NSS 1 Spring9 NSS 1 Retainer Ring

*NSS – Not Sold Separtely

** – Optional Assembly

Note “V” notch locations

Lefthand Rotation

Front

RighthandRotation

Rear

Righthand Rotation

Front

LefthandRotation

Rear

DISPLACEMENT CM^3/REV [IN^3/REV]

PUMP LOCATION SHAFT ROTATION 40.6[2.48] 49.2 [3.00]Front Righthand 70344-51 70400-706Rear Righthand 70344-52 70400-707Front Lefthand 70344-52 70400-707Rear Lefthand 70344-51 70400-706

VALVE PLATE IDENTIFICATION

ITEMS: 41, 42

Internal Relief Valve Settings

PART NUMBER BAR[PSI]

110700-200 138 [2000]110700-250 172 [2500]110700-300 207 [3000]110700-350 241 [3500]110700-400 276 [4000]110700-450 310 [4500]110700-500 345 [5000]110700-525 362 [5250]110700-550 379 [5500]

10EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

RELIEF VALVE SUB-ASSEMBLY

ITEMS: 37, 38, 39, 40

FRONT PORT ASSEMBLY MACHINED

ITEM PART NO. PORT A PORT B

1 4999100-001 No No 1 4999100-002 Yes No1 4999100-003 No Yes1 4999100-004 Yes Yes

ITEM PART NO. PORT A PORT B

1-1 4997530-001 No No 1-1 4997530-002 Yes No1-1 4997530-003 No Yes1-1 4997530-004 Yes Yes

REAR PORT ASSEMBLY MACHINED

ITEM PART NO. PORT A PORT B

47 4997532-001 No No47 4997532-002 Yes No 47 4997532-003 No Yes47 4997532-004 Yes Yes

Relief Valve & Drain PortIdentificationItems 37, 38, 39, 40 – Relief Valve S/A

Items 1, 47 – Housing Identification

Dash Number Stamped herefor Valve Pressure Setting IdentificationExample: 500 x 10 = [5000 PSI] 345 bar

DRAIN PORT IDENTIFICATION

Items: 1, 1-1, 47

Port A Port A

Port B Port B

11 EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

4996985-001

(Servo rear Pump)

41 Tooth

13 Tooth

Input Drive Part Number Location Used Output Drive

15 Tooth

41 Tooth

4994101-001

(Servo Front Pump)

4996984-001

(Servo Front Pump)

15 Tooth

41 Tooth

Drive Shaft & GerotorIdentificationItem 26, – Optional Drive Shaft

Item 27, – Gerotor

ITEM 26 OPTIONAL DRIVE SHAFT

GEROTOR GEROTOR GEROTOR DISPLACEMENT THICKNESSITEM SUB-ASSEMBLY RING STAR CM^3/REV MM[INCH]

56 203225-003 202812-003 203224-003 13.8 [0.84] 12.70 [.5]56 203225-004 202812-004 203224-004 17.2 [1.05] 15.88 [.625]56 203225-005 202812-005 203224-005 20.6 [1.26] 19.05 [.750]

ITEM 27 GEROTOR IDENTIFICATION

12EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

Charge Pump Adapter IdentificationItem 57

ITEM 57 Charge Pump Adapter

Displacement m^3/rev [in^3/rev]

SHAFT ROTATION 13.8 [0.84] 17.2 [1.05] 20.6 [1.26]Righthand 4997008-001 4997008-002 4997008-003Lefthand ––––––––– –––––––– –––––––––

SuctionPort

ChargeOutletPort

RighthandPort

Locations

Lefthand

Port

Locations

SuctionPort

ChargeOutletPort

1

2

6

7

10A

3

98

4

5

High Gain

12

13

11

13 EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

Servo Controller AssembliesItems 61, 62 – High Gain Manual

Servo Control

4097065-001 HIGH GAIN MANUAL SERVO CONTROL

ITEM PART NO. QTY DESCRIPTION

1 113379-001 1 Housing, Control 2 72401-516 1 Valve Spool Sub-Assembly3 72401-508 1 Feedback Link Weldment4 4996938-001 1 Shaft, Input Control5 72401-503 1 Seal6 16015-8 1 O-Ring7 72401-505 1 Plug8 16133-2 1 O-Ring9 72401-506 1 Plug10 102149-019 1 Screw, Hex Set11 72400-722 1 Adapter Assy, Neutral L/O12 110083-000 1 Switch. N/O Neutral L/O13 102149-019 1 Screw, Hex Set

4097065-002 HIGH GAIN MANUAL SERVO CONTROLWITH BACKUP ALARM, REAR PUMP

ITEM PART NO. QTY DESCRIPTION

1 113379-009 1 Housing, Control 2 72401-516 1 Valve Spool Sub-Assembly3 72401-506 1 Feedback Link Weldment4 4996938-002 1 Shaft, Input Control5 72401-503 1 Seal6 16015-8 1 O-Ring7 72401-505 1 Plug8 16133-2 1 O-Ring9 72401-506 1 Plug10 102149-019 1 Screw, Hex Set11 72400-722 1 Adapter Assy, Neutral L/O12 110083-000 1 Switch. N/O Neutral L/O13 102149-019 1 Screw, Hex Set

4097065-003 HIGH GAIN MANUAL SERVO CONTROLWITH BACKUP ALARM, FRONT PUMP

ITEM PART NO. QTY DESCRIPTION

1 113379-009 1 Housing, Control 2 72401-516 1 Valve Spool Sub-Assembly3 72401-508 1 Feedback Link Weldment4 4996938-003 1 Shaft, Input Control5 72401-503 1 Seal6 16015-8 1 O-Ring7 72401-505 1 Plug8 16133-2 1 O-Ring9 72401-506 1 Plug10 102149-019 1 Screw, Hex Set11 72400-722 1 Adapter Assy, Neutral L/O12 110083-000 1 Switch. N/O Neutral L/O13 102149-019 1 Screw, Hex Set

14EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

Serial Number Code:

D 91 01 31 JB

Revision level of parts list

Day of Month (two digits)Last two digits of year built. (91 for 1991, etc.

Testers initials

Month (two digits)

358AK Back to BackServo Piston PumpSerial Number Identification

15 EATON Hydraulics 358AK Back to Back Servo Piston Pump E-PUPI-TM003-E April 2004

Notes:

© 2004 Eaton CorporationAll Rights ReservedPrinted in USADocument No. E-PUPI-TM003-EApril 2004

Eaton 14615 Lone Oak RoadEden Prairie, MN 55344USATel: 952 937-9800Fax: 952 974-7722www.hydraulics.eaton.com

EatonDr.-Reckeweg-Str. 1D-76532 Baden-BadenGermanyTel: (49) 7221 682-0Fax: (49) 7221 682-788

Eaton20 Rosamond RoadFootscrayVictoria 3011AustraliaTel: (61) 3 9319 8222Fax: (61) 3 9318 5714