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