Eaton 70360 Manual del propietario

Eaton®

Medium Duty Piston Pump

Model 70360 Variable Displacement Piston Pump

40,6 cm3/r [2.48 in3/r] or 49,2 cm3/r [3.00 in3/r] Displacements

Manual Controlled

Parts and Repair

Information

No. 6-637

January 1998

Model 70360

Table of Contents

Introduction .........................................................................................................2

Identification........................................................................................................3

Tools Required ....................................................................................................3

Parts Drawing ......................................................................................................4 - 5

Parts List .............................................................................................................6 - 14

Main Parts List ..............................................................................................6 - 7

Rotating Kit Assembly ...................................................................................8

Cap Screw Locations .....................................................................................8

Relief Valve....................................................................................................9

Backplate Assembly Identification .................................................................10 - 11

Charge Pump Adapter Identification ..............................................................12 - 13

Drive Shaft Identification ...............................................................................14

Repair information...............................................................................................15 - 19

Disassembly ..................................................................................................15 - 17

Reassembly ...................................................................................................18 - 19

Fault - Logic Troubleshooting ..............................................................................20 - 24

Start-up Procedure ..............................................................................................25

Introduction

This manual provides service information for Eaton Models 70360 variable displacement piston pumps. Step

by step instructions for the complete disassembly, inspection, and reassembly of the pump are given. The

following recommendations should be followed to insure successful repairs.

Remove the pump from the application.

Cleanliness is extremely important.

Clean the port areas thoroughly before disconnecting the hydraulic lines.

Plug the pump ports and cover the open hydraulic lines immediately after they're disconnected.

Drain the oil and clean the exterior of the pump before making repairs.

Wash all metal parts in clean solvent.

Use compressed air to dry the parts. Do not wipe them dry with paper towels or cloth.

Compressed air should be filtered and moisture free.

Always use new seals when reassembling hydraulic pumps.

Lubricate the new rubber seals with a petroleum jelly (Vaseline®) before installation.

Torque all bolts over gasketed joints, then repeat the torquing sequence to makeup for gasket

compression.

Verifying the accuracy of pump repairs on an authorized test stand is essential.

Introduction

Model 70360

Serial Number Code:

A 96 01 31 JB Tester's Initials

Day of Month (two digits)

Month (two digits)

Revision level of parts list.

Last two digits of year built.

( 91 for 1991 etc.)

Identification Numbers - Manually Variable Displacement Piston Pump

Stamped on each unit's mounting flange.

A - Product Number Description

70360 = Single Piston Pump

78362 = Single Piston Pump with Gear Pump

78361 = Tandem Piston Pumps

78363 = Tandem Piston Pumps with Gear Pump

B - Sequential Numbering

Single Pump - Product Number:

7 0 3 6 0 - R A A

Tandem Pumps - Product Number:

7 8 3 6 3 - R A B

Tools Required

9/16, 7/8, 1-1/8 in. sockets and/or end

wrenches

Torque wrench (203 N.m [150 lbf.ft] capacity)

Ratchet wrench

7/16 in. Allen wrench or bit socket

Internal and external retaining ring pliers

Small screwdrivers (2)

Hammer (soft face)

Light Petroleum Jelly

Seal driver or similar tool

Each order must include the following information.

1. Product and/or Part Number

2. Serial Number Code

3. Part Name

4. Quantity

Model 70360

Parts

Drawing

Pump drawn below is typical of a righthand rotation pump.

24-1

10-1

12-1

10-2

20 41 516 17 16 5

Shaft assembly for

rear pump of tandem.

54-1

Port

(D2)

Port

(D2)

53-1

20 516 17

16 5

Shaft assembly for

single pump

or front pump

of tandem.

Model 70360

Parts

Drawing

Note "V" notch

locations

Lefthand

Rotation

Righthand

Rotation

Valve Plate

Identification

25-1

Used in place of Auxiliary pump.

Refer to Backplate

Assembly Identification section

for additional backplates.

K2-1

K2-2

K2-3

K1-1 K1-2

K1-3

(K3-2)

(K3-1)

(K3-3)

Port (A)

Port

(C1)

Port

(C1)

Port (S)

Port (C2)

Port (B)

Port (A)

Port (B)

25-2

25-3-3

25-3b

8-1

78-1 8

25-3

29-1

36 43

37-1

25-1

25-2

8-1

78-1 8

25-3

25-3-3

25-3a

Assembly for unit without

gerotor charge pump.

Assembly for single pump

or rear pump of tandem.

25-3-3

Model 70360

Parts List

Item Part No. Qty. Description

2 16028-404 2 Dowel Pin

3 16322-xxx A/R Shims

+ 4 16077-32 1 Retaining Ring

+ 5 16078-18 2 Retaining Ring

6 16032-610 6 Screw

7 17079-2 2 Spring

8 32060-8 2 Plug Assembly

+ 8-1 16015-18-90 2 O-ring, 2,38 mm Dia. x 22,23 mm I.D. [.0937 in. Dia. x .875 in. I.D.]

9♦1 Rotating Kit Assembly (parts list on page #8)

10 70360-508 1 Cover Plate SA

+ 10-1 16003-40 1 O-ring, 4,76 mm Dia. x 85,73 mm I.D. [.1875 in. Dia. x 3.375 in. I.D.]

10-2 16253-16 1 Seal, Trunnion Shaft

11 16048-113 6 Washer

12 70360-507 1 Cover Plate SA

+ 12-1 16003-40 1 O-ring, 4,76 mm Dia. x 85,73 mm I.D. [.1875 in. Dia. x 3.375 in. I.D.]

14 16320-122 2 Bearing Cone

+ 15 70412-626 1 Housing Gasket

16 74308-100 2 Thrust Race

17 74308-101 1 Needle Thrust Bearing

18 ♦2 Cap Screws (Locations on page #8)

16032-622 3/8-16, 57,2 mm [2.25 in.] Long

16040-640 3/8-16,101,6 mm [4.0 in.] Long

19 ♦2 Cap Screws (Locations on page #8)

16032-616 3/8-16, 38,1 mm [1.5 in.] Long

16032-620 3/8-16, 50,8 mm [2.0 in.] Long

16032-632 3/8-16, 82,6 mm [3.25 in.] Long

+ 20 16253-18 1 Shaft Seal, Drive

20 16253-218 1 Shaft Seal, Drive (fluorocarbon rubber)

20 70400-620 1 Spacer (Used in rear pump of tandem in place of drive shaft seal.)

22 ♦1 Relief Valve for Port "A" (Identification drawing on page #9)

23 ♦1 Relief Valve for Port "B" (Identification drawing on page #9)

24 1 Housing Assembly

70360-302 1 with drain port D1 and D2

70360-309 1 with drain port D1, D2, and D3

24-1 16238-11816 1 Bearing (press fit)

25 ♦1 Backplate Assembly (Identification drawing and parts list on page #10 & #11)

26 1 Valve Plate (Identification drawing on page #5)

70344-51 Righthand (CW) Rotation

70344-52 Lefthand (CCW) Rotation

27 ♦1 Drive Shaft (Identification drawing on page #14)

28 ♦1 Camplate

70360-606 1 Square End Trunnion

29 ♦1 Charge Pump Adaptor (Identification drawing and parts list on page #12 & #13)

30 1 Inner Gerotor

79004-611 6,9 cm3/r [.42 in3/r] displacement, 6,35 mm [.25 in ] width

79004-605 13,8 cm3/r [.84 in3/r] displacement, 12,7 mm [.5 in] width

31 1 Outer Gerotor

79004-612 6,9 cm3/r [.42 in3/r] displacement, 6,35 mm [.25 in ] width

79004-606 13,8 cm3/r [.84 in3/r] displacement, 12,7 mm [.5 in] width

32 1 Key, Drive Shaft

16246-516 Used with 25,4 mm[1.00 in] dia. drive shaft.

24500-619 Used with 22,2 mm [.875 in] dia. drive shaft.

33 16007-14 1 O-ring (In K2 & K3 kit)

34 70411-613 1 Coupler

35 70411-605 1 Mounting Bracket

Model 70360

Parts List

36 70142-600 1 Cover Plate (In K3 kit)

37 16103-108 1 Plug Assembly

+ 37-1 16133-8 1 O-ring, 2,21 mm Dia. x 16,36 mm ID. [.087 in. Dia. x .644 in. ID.]

38 15222-20 1 Key, Gerotor Pump Adapter

+ 39 70342-600 1 Molded O-ring

40 16048-113 2 Washer

41 16048-319 1 Washer

42 16246-523 1 Key, Camplate Trunnion

43 16032-610 2 Cap Screws, Cover Plate (In K3 kit)

44 70300-604 1 Insert, Camplate

45 16048-113 6 Washer

53 16103-308 1 Plug Assembly

+ 53-1 16133-8 1 O-ring, 2,20 mm Dia. x 16,35 mm ID. [.087 in. Dia. x .644 in. ID.]

54 16103-308 1 Plug Assembly

+ 54-1 16133-8 1 O-ring, 2,20 mm Dia. x 16,35 mm ID. [.087 in. Dia. x .644 in. ID.]

Mounting Kits

K1 70342-905 1 Tandem Piston Pump Mounting Kit

K1-1 70411-622 1 41T Coupler, 33,02 mm [1.3 in.] long

K1-2 16007-17 1 O-ring, 1,59 mm Dia. x 101,6 mm ID. [.0625 in. Dia. x 4 in. ID.]

K1-3 16032-812 2 Cap Screws

K2 70442-929 1 Gear Pump Mounting Kit

K2-1 16007-14 1 O-ring, 1,59 mm Dia. x 82,55 mm ID. [.0625 in. Dia. x 3.25 in. ID.]

K2-2 16048-113 1 Washer

K2-3 16032-610 2 Cap Screws

K3 70142-915 1 Cover Plate Kit

K3-1 16007-14 1 O-ring, 1,59 mm Dia. x 82,55 mm ID. [.0625 in. Dia. x 3.25 in. ID.]

K3-2 70142-600 1 Cover Plate

K3-3 16032-610 2 Cap Screws

Seal Repair Kits

• 70360-900 1 Seal Repair Kit for 70360 piston pump. (Order two for tandem pumps)

Legend ♦Refer to specific item parts list.

+ Common parts to seal repair kits.

Model 70360

Item 9 - Rotating Kit Assembly

Item 18 and 19 - Cap Screw Locations

16032-622

16032-640

16032-622

16032-632 16032-620

Rear "B" Flange,

without Gerotor,

Opposite Side Porting

Rear "A" Flange,

without Gerotor,

Same Side Porting

Rear "A" Flange,

with Gerotor,

Opposite Side Porting

16032-622

16032-616

Rear "A" Flange,

without Gerotor,

Opposite Side Porting

Item 18 and 19

Cap Screw Locations

Item Part No. Qty. Description

970300-603 1 Rotating Kit Assy. 2.48 in3/r

70400-703 1 Rotating Kit Assy. 3.00 in3/r

9-1NSS 9 Piston Assembly

9-2NSS 1 Spider

9-3NSS 1 Spider Pivot

9-4NSS 1 Retainer

9-5NSS 1 Piston Block

9-6NSS 3 Pins

9-7NSS 2 Washer

9-8NSS 1 Spring

9-9NSS 1 Retaining Ring

NSS - Not Sold Separately

Item 9

Rotating Kit Assembly

9-1

9-2 9-3

9-5

9-4

9-6 9-7 9-8

9-9

9-7

Model 70360

Item 22 or 23 - Relief Valve

Item 22 or 23

Internal Relief Valve Settings Available

Part Number bar [PSI]

32060-LA 138 [2000]

32060-QA 172 [2500]

32060-UA 207 [3000]

32060-WA 241 [3500]

32060-ZA 276 [4000]

32060-XA 310 [4500]

32060-IA 345 [5000]

70111-518 Seat, Valve

32060-LA

2000

Assembly Number

and Pressure Setting

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