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Eaton PVM018, Service Manual

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EATON  

PVM Piston Pump Service Manual  E-PUIO-II001-E4  December 2017

8

Identification of Model Code 

Model PVM018

Model PVM020

EATON 

PVM Piston Pumps Parts Manual  V-PP-TP-0001-E  July 2011

10 

Identification of Model Code

Model PVM018
Model PVM020

1, 2, 3  Pump Series

PVM M-Series variable piston 

pump

4, 5, 6  Displacement

018 18.0 cm

3

/rev (1.10 in

3

/rev) 

280 bar
020 21.1 cm

3

/rev (1.24 in

3

/rev) 

230 bar

 

7  Valve Plate 

E

 - Industrial (1800 rpm max)

M

 - Mobile equipment 

speeds

8  Input Rotation 

R

 - Clockwise (righthand)

L

 - Counterclockwise 

(lefthand)

9, 10  Input Shaft 

01 SAE J744-16-1 A straight 

key
02 SAE J744-19-1 19mm 

straight key
03 SAE J744-16-4 A 9T spline
04 SAE J744-16-4 A 11T 

spline
05 SAE J744-22-1 B straight 

key
06 SAE J744-25-1 B-B 

straight key
07 SAE J744-22-4 B 13T 

spline
08 SAE J744-25-4 B-B 15T 

spline 

11  Mounting Flange

A SAE J744-82-2 (SAE A 2 

bolt) 

C SAE J744-101-2 (SAE B 2 

bolt)

12   Main Port Location

S Side 

E End (na on thru drive)

13, 14    Main  Port Type

01 SAE J514 tube ports 

02 SAE J518 flange ports 

03 ISO 6149-1 tube ports 

04 ISO 6162 flange ports

15, 16  Pump Special   

       Features

00 None (single shaft seal)
AA Adjustable maximum 

displacement stop and single 

shaft seal (standard)
AB Double shaft seal, two 

way
AD Adjustable maximum 

displacement stop and 

double shaft seal

17    Control 

0 None
A Pressure compensator
B Pressure and flow 

compensator with bleed 

orifice
C Pressure and flow 

compensator with plugged 

orifice

18, 19    Pressure Comp 

Setting

00 None
07 66-74 bar (957-1073 psi)
23 227-234 bar (3277-3393 

psi) 020 cm

3

/rev

28 276-284 bar (4002-4118 

psi) 018 cm

3

/rev 

20, 21    Flow Comp 

Setting

00 None
11 10-11 bar (145-174 psi)
20 19-21 bar (275.5-304.5 

psi)
24 23-25 bar (333.5-362.5 

psi) 

22, 23    Torque Limiter 

Setting

00 None 

24  Compensator Special  

       Features 

0 None

25    Auxiliary Mounting Pad 

0 None
A SAE A 2 bolt 9T spline
B SAE A 2 bolt 11T spline

26    Paint 

0 No paint
A Blue (standard)

27    Customer Identification 

0 None

28    Design Code 

A A (initial release)

PVM

1, 2, 3 4, 5, 6

018

7

E

8

R

9, 10

01

11

A

12

S

13, 14

01

15, 16

AA

17

A

18, 19

28

20, 21

00

22, 23

00

24

0

25

0

26

A

27

0

28

A

8

EATON PVM Piston Pump Service Manual 

Summary of Contents for PVM018

Page 1: ...PVM Piston Pumps Service Manual PVM018 020 PVM045 050 PVM057 063 PVM074 081 PVM098 106 PVM131 141...

Page 2: ...fication 4 PVM 018 020 9 PVM 045 050 14 PVM 057 063 15 PVM 074 081 19 PVM 098 106 24 PVM 131 141 29 Repair General Information 34 Replacement Parts Required Tools Special Tools Disassembly Inspection...

Page 3: ...valve plate so that the pistons pass the inlet as they are pulled out and pass the outlet as they are forced back in The displacement of axial piston pumps is determined by the size and number of pis...

Page 4: ...V PP TP 0001 E July 2011 6 35 32 33 27 25 1 2 3 4 23 23 73 74 72 23 26 29 24 21 30 36 10 9 58 59 60 61 57 62 63 66 37 34 38 41 40 39 22 47 45 46 44 43 42 48 52 53 54 55 56 31 5 6 65 64 49 51 50 8 7 15...

Page 5: ...1 B O Ring 45 115001 022 1 B Back Up Ring Item Part No Qty Note Description 46 104166 022 1 B O Ring 47 16028 303 1 Pin 48 932921 1 M Chain Link 49 943992 1 Swashplate 50 02 340318 2 D Cradle Bearing...

Page 6: ...46 4992730 002 07 C O 937447 08 C O 937448 15 B O 937456 4992728 001 17 D O 937088 4992728 002 01 A O 937183 4992730 006 02 A O 937184 4992730 007 03 B C O 937185 04 A B C O 937186 05 C A 937449 49927...

Page 7: ...40 L E05 944170 Table 6 End Cover Non Thru Drive 23 Model Code Position 8 13 14 25 R 01 A B 937460 R 02 A B 937187 R 03 A B 937461 R 04 A B 937188 R 05 A B 937462 R 03 G H 937463 R 04 G H 937189 R 05...

Page 8: ...01 SAE J514 tube ports 02 SAE J518 flange ports 03 ISO 6149 1 tube ports 04 ISO 6162 flange ports 15 16 Pump Special Features 00 None single shaft seal AA Adjustable maximum displacement stop and sin...

Page 9: ...Identification of Parts Model PVM045 Model PVM050 23 30 36 22 21 24 29 23 4 3 1 2 27 33 32 35 26 23 72 69 71 74 70 73 37 34 38 41 40 39 10 58 60 59 61 57 62 63 66 9 31 47 45 46 44 43 42 48 52 53 54 55...

Page 10: ...g 45 114998 027 1 B Back Up Ring Item Part No Qty Note Description 46 104166 027 1 B O Ring 47 95902 050 1 Pin 48 932921 1 M Chain Link 49 932918 1 Swashplate 50 937055 2 D Cradle Bearing 51 114995 01...

Page 11: ...able 1 Pressure Compensator 1 SAE Port Metric Port BSPP Port Model Code Position 9 10 11 26 05 C O 934380 22971 06 C O 934381 58303 96098 100 07 C O 934382 08 C O 932927 05 C A B G H 934391 22971 06 C...

Page 12: ...03 A B 934359 115050 022 R 04 A B 934269 115050 022 R 05 A B 934363 4992947 002 R 03 G H 934365 115050 022 R 04 G H 934364 115050 022 R 05 G H 934366 4992947 002 R 01 C D 934301 115046 006 934294 R 02...

Page 13: ...Pump Special Features 00 None single shaft seal AA Adjustable maximum displacement stop and single shaft seal standard AB Double shaft seal two way AD Adjustable maximum displacement stop and double s...

Page 14: ...36 37 34 38 41 40 39 57 61 60 59 58 31 9 10 30 22 22 21 28 29 47 25 26 27 3 23 1 73 23 70 69 71 72 2 24 5 6 68 66 67 64 65 49 51 50 8 15 16 14 11 29 12 18 15 17 19 56 55 54 53 52 45 46 44 43 42 48 Pa...

Page 15: ...p Ring Item Part No Qty Note Description 46 104166 126 1 B O Ring 47 16028 303 1 Pin 48 934493 1 M Chain Link 49 934086 1 Swashplate 50 943984 2 D Cradle Bearing 51 114995 010 2 D Screw Socket Flat He...

Page 16: ...7 C A to M 937383 08 C A to M 937384 09 E G A to M 937380 11 E G A to M 937051 17 E H A to M 939386 18 E H A to M 937385 Table 2 Shaft and Key 5 6 Model Code Position 11 13 14 15 16 C 01 02 00 AA AC 9...

Page 17: ...43809 L 02 A B 937258 576601 L 02 C D 937258 934296 401525 576601 L 02 E F 937258 934298 353264 576601 L 04 A B 937259 576601 L 04 C D 937259 934567 401525 576601 L 04 E F 937259 934569 353264 576601...

Page 18: ...SAE J518 flange ports 03 ISO 6149 1 tube ports 04 ISO 6162 flange ports 15 16 Pump Special Features 00 None single shaft seal AA Adjustable maximum displacement stop and single shaft seal standard AB...

Page 19: ...n Pumps Parts Manual V PP TP 0001 E July 2011 30 71 73 70 69 27 72 23 26 26 24 1 29 32 33 35 28 34 37 36 40 39 41 38 3 47 25 2 21 22 30 10 9 31 58 59 60 61 57 23 23 55 56 54 53 52 43 44 46 45 11 29 14...

Page 20: ...ng 45 115000 129 1 B Back Up Ring Item Part No Qty Note Description 46 104166 129 1 B O Ring 47 95902 050 1 Pin 48 943252 1 M Chain Link 49 943356 1 Swashplate 50 943378 2 D Cradle Bearing 51 114995 0...

Page 21: ...3430 18 O 943431 4992727 001 19 O 943432 09 A M 943433 10 A M 943434 11 A M 943435 12 A M 943436 18 A M 943437 4992727 001 19 A M 943438 Table 2 Shaft and Key 5 6 Model Code Position 11 13 14 15 16 E...

Page 22: ...943809 L 02 A B 943393 576601 L 02 C D 943393 934296 401525 576601 L 02 E F 943393 934298 353264 576601 L 04 A B 943425 576601 L 04 C D 943425 934296 401525 576601 L 04 E F 943425 934569 353264 57660...

Page 23: ...aft seal AA Adjustable maximum displacement stop and single shaft seal standard AB Double shaft seal two way AD Adjustable maximum displacement stop and double shaft seal 17 Control 0 None A Pressure...

Page 24: ...n Pumps Parts Manual V PP TP 0001 E July 2011 36 Identification of Parts Model PVM098 Model PVM106 71 73 70 69 27 72 23 26 26 24 1 29 32 33 35 28 34 37 36 40 39 41 38 3 47 25 2 21 22 30 10 9 31 58 59...

Page 25: ...g 45 115000 129 1 B Back Up Ring Item Part No Qty Note Description 46 104166 129 1 B O Ring 47 95902 050 1 Pin 48 943252 1 M Chain Link 49 943206 1 Swashplate 50 943226 2 D Cradle Bearing 51 114995 01...

Page 26: ...2 O 943307 18 O 943308 4992727 001 19 O 943309 09 A M 943310 10 A M 943311 11 A M 943312 12 A M 943313 18 A M 943314 4992727 001 19 A M 943315 Table 2 Shaft and Key 5 6 Model Code Position 11 13 14 15...

Page 27: ...B 943246 576601 L 02 C D 943246 934296 401525 576601 L 02 E F 943246 934298 353264 576601 L 04 A B 943302 576601 L 04 C D 943302 934567 401525 576601 L 04 E F 943302 934569 353264 576601 L 04 G H 943...

Page 28: ...ft seal AA Adjustable maximum displacement stop and single shaft seal standard AB Double shaft seal two way AD Adjustable maximum displacement stop and double shaft seal 17 Control 0 None A Pressure c...

Page 29: ...1 E July 2011 42 35 28 2 33 36 37 34 32 27 23 24 26 22 21 29 3 30 59 45 46 44 43 42 31 10 9 58 59 60 61 1 73 23 72 69 70 71 26 26 26 26 23 26 57 38 5 6 40 41 39 48 66 67 68 65 64 49 51 50 8 15 16 14 2...

Page 30: ...B Back Up Ring Item Part No Qty Note Description 46 104166 032 1 B O Ring 47 95902 050 1 Pin 48 934026 1 M Chain Link 49 933089 1 Swashplate 50 933095 2 D Cradle Bearing 51 114995 010 2 D Screw Socket...

Page 31: ...7 09 E G A F 934469 114516 10 E G A F 934471 140282 11 E G A F 934470 12 E G A F 934295 13 J A F 934472 633260 14 J A F 934321 18 F H A F 934473 928546 19 F H A F 934475 928547 Table 2 Shaft and Key 5...

Page 32: ...43809 L 02 A B 934505 576601 L 02 C D 934505 934296 401525 576601 L 02 E F 934505 934298 353264 576601 L 04 A B 934506 576601 L 04 C D 934506 934567 401525 576601 L 04 E F 934506 934569 353264 576601...

Page 33: ...15 16 Pump Special Features 00 None single shaft seal AA Adjustable maximum displacement stop and single shaft seal standard AB Double shaft seal two way AD Adjustable maximum displacement stop and d...

Page 34: ...Required Tools Ball peen hammer Plastic tip hammer Hex Allen wrenches Wrenches Flat tip screw driver Lock ring pliers Torque Wrench Rubber tip hammer Petroleum jelly Cleaning solvent Read this assembl...

Page 35: ...ttempted without proper tools B Required Tools Standard Tools for Disassembly Ball peen hammer Plastic tip hammer Hex Allen wrenches Wrenches Flat tip screw driver Lock ring pliers Torque Wrench Rubbe...

Page 36: ...ess However it must be filtered to remove water and other con tamination 1 Remove Control Note Remove and discard three O rings 2 Remove Maximum Displacement Stop Screw Note Remove lock nut and turn t...

Page 37: ...irst Then remove rotating group with swash plate and control piston sub assembly The complete rotating group consists of items 57 through 65 WARNING DO NOT remove retaining ring from cylinder block be...

Page 38: ...O NOT remove retaining ring from cylinder block because spring is under high compression Bodily harm may result if the retaining ring is removed without adequate caution In most cases the parts inside...

Page 39: ...PUIO II001 E4 December 2017 39 13 Remove Shaft Bearing 14 Remove Saddle Bearings NOTE Tap directly on the hex driver with a ball peen hammer before remov ing retaining screws The screws should be disc...

Page 40: ...linder block bores NO BINDING CAN BE TOLERATED If binding occurs clean the cylinder block and pistons Lubricate the cylinder block bores with clean fluid and try again Even minor contamination of the...

Page 41: ...d excessive end play Replace if defective If the bearing needs to be replaced the bearing race also requires replace ment 3 Inspect housing mounting flange for nicks and burrs Re move minor nicks and...

Page 42: ...O rings and backup rings The minor OD seals are installed in reverse order to the major OD seals 3 The Control Sleeve and Piston Sub assembly to the Swash Plate For fixed hold down assemblies 57cc to...

Page 43: ...ssembly 5 Install Shaft Seal and Shaft Bearing 6 Installation of Saddle Bearings Note Torque retaining screws to specified torque The bearings should be fully seated in the flange journals 7 Install B...

Page 44: ...Flange 11 Assemble Screws Attaching Housing to Mounting Flange 12 Install the Shaft Bearing Spacer and Trail Bearing Cone 13 Install Valve Plate on End Cover Note Lightly coat the back plate side of...

Page 45: ...Pump Service Manual E PUIO II001 E4 December 2017 45 15 Install Alignment Pin in Control Sleeve and End Cover 16 Install End Cover Screws Note Torque the control cap to the specified torque 17 Install...

Page 46: ...sales manager for more information Troubleshooting The troubleshooting chart below lists common difficulties experienced with pumps and hydraulic systems The chart indicates probable causes and remed...

Page 47: ...stners Pump Size Item 22 84 Item 26 Item 27 Item 32 PVM 18 20 60 64 N m 60 64 N m 59 73 N m 185 205 N m PVM 45 50 75 83 N m 23 26 N m 103 127 N m 210 230 N m Torque Rating for Plugs and Fastners Item...

Page 48: ...N 55344 USA Tel 952 937 9800 Fax 952 294 7722 www eaton com hydraulics Eaton Hydraulics Group Europe Route de la Longeraie 7 1110 Morges Switzerland Tel 41 0 21 811 4600 Fax 41 0 21 811 4601 Eaton Hyd...

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