KOBELCO SK20SR HYDRAULIC EXCAVATOR Service Repair Manual

SHOP MANUAL HYDRAULIC EXCAVATOR

SK15SR SK20SR

S5PM0002E-02 NA

Issued 04-1999

SK15SR . . . . . . . . . . . PU06001~ SK20SR . . . . . . . . . . . PM02001~

SK15SR / SK20SR HYDRAULIC EXCAVATOR

SHOP MANUAL APPLICABLE

SK15SR. . . . . . . . . . PU06001~ SK20SR. . . . . . . . . . PM02001~

Bur • Issue Date 04-1999 Printed in U.S.A. • Book/Form Number S5PM0002E-02 NA Copyright © 2005. Kobelco Construction Machinery America, LLC. All Rights Reserved.

Kobelco Construction Machinery America, LLC reserves the right to make improvements in design or changes in specifications at any time without incurring any obligation to install them on units previously sold.

All data given in this publication is subject to production variations. Dimensions and weights are only approximate. Illustrations do not necessarily show products in standard condition. For exact information about any particular product, please consult your Dealer.

Revision History Issue

Issue Date

Applicable Machines

Remarks

First Edition

Not Available

SK15SR, SK20SR

S5PM0002E-00 NA

Revision 1

Not Available

SK15SR, SK20SR

S5PM0002E-01 NA

Revision 2

04-1999

SK15SR, SK20SR

S5PM0002E-02 NA

Any use of editorial or pictorial content is strictly prohibited without express written permission from Kobelco Construction Machinery America, LLC . Carol Stream, IL 60188 U.S.A..

HYDRAULIC

EXCAVATOR

MODEL

SK15SR SK20SR BOOK CODE NO. S5PM0002E®

HYDRAULIC EXCAVATOR SHOP MANUAL

model

SK15SR SK20SR

This is the shop manua~ for KOBELCO hydraulic excavator. Contained is the necessary technical data concerning the maintenance and repair of this model. The manual is divided into the following four major sections ; GENERAL, SYSTEMS, COMPONENTS and PROCEDURE. *GENERAL PM01. SPECIFICATION -OPERATION AND CONTROLS (Refer to OperatorsManual) PM03. LOCATION AND WEIGHT OF COMPONENTS *SYSTEMS PM12.

PM15.

PM18.

PM21.

HYDRAULIC SYSTEM UPPER STRUCTURE TRAVEL SYSTEM A’FFACHMENTS

*COMPONENTS 12. HYDRAULIC PUMP 13. CONTROL VALVE 14. OTHER VALVES 15. HYDRAULIC MOTOR

PM07.

MAINTENANCE STANDARD AND TEST PROCEDURE PREVENTIVE MAINTENANCE (Refer to OperatorsManual) WORKING STANDARD

PM22.

PM25.

CONTROL SYSTEM ELECTRIC SYSTEM

PM29.

TROUBLE SHOOTING

PM04.

--

16.

17.

SWIVEL JOINT HYDRAULIC CYLINDER

50.

ENGINE

"PROCEDURE Whenchecking or repairing the machine we suggest thatyou referto thismanualcarefully.

We hope thatreference to thismanualwillhelptomaintain a hightlevelof worldng efficiency andreliability.

For furtherdetailson maintenance and cheksreferto the "OPERATORS MANUAL"whichhas been supplied withthe machine.

Althoughall data was correctat the time of printing,due to continualdesignchangesand improvements, somecontents matnot conform to theactualmachine.

Takespecial careto orderparts onlyafterconfirming the validity of the partnumberin the "PARTSMANUAL".

If you noticeanyexplanatory discrepancies, afterconsulting one of our representatives, please updatayourmanualaccording to thelatestdata.However, in theeventof anyspecification changes, wewillissue revised edition.

INDEX

KOBEID:) Book code No.

S5PMOOO2E,

SHOP MANUAL

SKI5SR model SK2OSR TABLE OF CONTENTS

................................................

1. SPECIFICATION ANDCONTROLS (Referto Operators Manual) 2. OPERATION 3.

LOCATIONAND WEIGHTOF COMPONENTS .........

4.

MAINTENANCE STANDARDSAND TESTPROCEDURES ..........................................

PM03 PM04

o

6.

PREVENTIVEMAINTENANCE(Refer

to Operators

7.

WORKING STANDARDS .......................................

Manual)

PM07

o

OHow to Indexeach Shop ManualSection The GENERALof this shop manualconsistsof 8 headingsas shown above. Each sectioncan be easily referredto by indexesappendedto the margin of the page as indicatedon the right.

Pleaseusetheindexes forspeedyreference.

KOBELO:)

r

GENERAL

SK15SR SK20SR List

of Shop Manual GENERALSection

BookCodeNo.

Title

Distribution Year-Month Index No. Applicable Machines

PM01

SPECIFICATION

--

OPERATION

PM03 PM04

--

PM07

LOCATION AND WEIGHT OF COMPONENTS MAINTENANCE STANDARDS AND TEST PROCEDURES

PREVENTIVE MAINTENANCE WAOPKING STANDARDS

SK15SR SK20SR PU06001~07000 PM02001~03500 ¯ ~ PU07001"~ PM03501-V I01E’2~ . S5PM0 1999-4 ] S2PM1003E(!) ~ S2PM1004E Referto Operators manual

",------

1999-4 J S5PM0401EtDi 1999-4 ]

-,---

S2PM0003E(~) ~ S2PM1004E Refer toOperators manual

-"---

S5PM0701E 1997-5

: May,1997 * Firstedition ¯ Firstrevision : March, 1998 " Second revision : April, 1999

1. SPECIFICATION 1.1 GENERAL VIEW

Pl

DE I ERY PORT P1.P2.P3

(PF3/8)

SUCTION PORT(for Front PI, Center P2) (PP3/4) SUCTIONPORT(for Rear pump P3) (PFI/2) Fig. 1 General view of hydraulic

pump

1.2 SPECtFICATIONS Type Item

~~ cclrev (cu.irgrev) Working pressure kgf/cm2 (psi) Displacement

Rated revolution

Weight

Front P1,Center P2 [ 6.1x2(0.37x 2)

Rear P3 3.0(0.18)

210(2,990)

rpm

Rotational direction Flow rate

KFP1161-61-30

4O(57O) 2,350

CW(viewing from pump shaft ~/min (gal/min) kg(lbs)

14.3 × 2(3.8 × 2) approx. 5.1(11)

side)

7.1(1.9)

2. CONSTRUCTIONAND OPERATION 2.1 CONSTRUCTION 2

17 14

15

16 15

17

3 6

i

8 \

14 \

20

\

13 \

14 15 \

17

16

7

15 14

5 12 \

17

10

15 14

14 16 17

11

15

Fig. 3 Construction

of 3-series

NAME

Q’TY

No.

1

12

DRIVEN

NO.

1

MOUNTING

FLANGE

gear type hydraulic

NAME GEAR

pump

Q’TY 1

2

GEAR PLATE

1

13

COVER

3

FRONT DRIVE GEAR

1

14

PRESSURE

4

DRIVEN GEAR

1

15

PLATE SEAL

6

5

CENTER PLATE

1

16

BACK-UP

6

6

GEAR PLATE REAR DR1VE GEAR

1

17

O-RING

6

7

1

18

OIL SEAL

1

8

DRIVEVN GEAR

1

19

SNAP RING

1

9

CENTER PLATE

1

20

BOLT

4

10

GEAR PLATE

1

21

WASHER

4

11

3-SERIES

1

REAR DRIVE GEAR

2

1 PLATE

6

2.2

OPERATION The gear pump is so constructed that, with rotation of the drive shaft, the drive gear and driven gear are rotated with which the oil sucked up from tab suction side enters into the gear tooth groove and is transferred to the delivery side through the gear plate.

And a pressure balance mechanism is adopted for this pump to get a high volumetric efficiency.

As the pressure plates of each pump are able to move for axial direction while no-load operation, the pressure plates are pressed to the gears with the sealing force on the plate seals.

And while loaded operation, the delivery pressure is led to the back side of the pressure plate, that acts as a pressing force against gears with a slightly greater force than the force with which the pressure plate is separated from the gears, to maintain a proper clearance between the pressure plate and the side face of gears.

DRIVE SHAFT

DRIVE GEAR

GEAR PLATE

q Suction side

~

-~ Delivery side

DRIIVEN GEAR

Fig. 3 Operating principal

of gear pump

GEAR PLATE alloy]

PLATE SEAL

GEAR:No.oftooth-12

COVER

/

MOUNTING FLANGE

~ (Aluminum alloy] ----~-

ulj~

-l_

Bearing with low pressure lubrication PRESSURE PLATE(movableside plate)

PLATE (Aluminumalloy) Fig. 4 3-series

3

gear pump

3. REMOVAL AND INSTALLATION 3.1

GENERAL PRECAUTIONS ¯ The removing and installing works are to be carried out at a clean place providing clean containers to place the removed parts in. ¯ Before the removal, make around the ports clean and remove the paint around each joint with a wire brush. ¯ Clean each of removed parts with a cleaning oil such as diesel fuel, etc.

3.2 SPECIAL TOOL ¯ Oilseal(18)inserting jig (1) Cap Material: $46C or equivalent Applyhard chromeplating(i0 p

Makeroundness smooth.

Sand paper

¯ Put a match mark on each of the mating parts so that they shall be installed keeping relative positioning with each other. ¯ Replace all the seals to new one at every removal, and install them with thinly applying grease. ¯ Check each part for abnormal wear and seizure, retouch sharp edges and burrs with a sand paper, etc., if any.

(2) Sleeve Material:

Aluminum

Unit:mm(in)

~

~i ot c..

1.6a

70(2.76) No shap

No shap sdge

3.3 (1)

(2)

(3)

REMOVAL Fix the pump on a vice gripping the mounting flange (1) making the fixing flange face to downside. ¯ When gripping it on a vice, use a soft material such as wooden piece, aluminum or cupper plate, etc., not to damage the flange face.

Loosen the bolts (20), and remove them together with the washers (21). : 14ram Remove the cover (13), then remove the ring (17), plate seal (15) and back-up (16).

sdges

nor

burr:

20

13

17

Fig. 5

21~

(4)

Remove the pressure

plate(14).

(5) Put a matchmark on the shaftendsof the 3seriesrear drive gear (11) and the driven gear(12),thenpulloffthegears.

(6)

Pull off the pressure plate (4). ÂŻ While pulling off the pressure plate, pay special attention not to give it any slant.

When it becomes slant and difficult to remove, do not forcedly tap it, but make it in level by means of applying hydraulic oil or alike and pushing it with fingers.

(7)

Put a distingushing mark on the gear plate (10) for its front and rear, then removeit.

14 k

10

Fig. 6

(8)

Remove the O-ring (17), plate seal (15) back-up (16) from the center plate (9).

(9)

Pull off the center plate (9) for upwards lightly tapping its round with a plastic hammer.

(10) Remove the O-ring (17), plate seal (15) back-up (16) on the lower surface of center plate (9)

Fig. 7 (11) Removethe pressure

plate (14).

(12) Put a match mark on the shaft ends of the rear drive gear (7) and the driven gear (8), then pull them off. ÂŻ Pay special attention not to mix up the front and the center for the driven gear (8).

14

(13) Pull offthe pressure plate(14) on the bottom ofgear plate(6). ÂŻ FoUowtethe instruction menfioned in the above(6). mark on the gear plate (14) Put a distingushing (6) for its front and rear, then remove it.

Fig. 8

(15) Remove the O-ring (17), plate seal (15) back-up (16) from the center plate (5).

16

(16) Pull off the center plate (5) for upwards lightly tapping its round with a plastic hammer.

(17) Remove the O-ring (17), plate seal (15) back-up (16) from the lower face of center plate (5).

Fig. 9 (18) Removethe pressure

plate (14).

(19) Put a match mark on the shaft ends of the front drive gear (3) and the driven gear (4), then pull themof J[i

14 2 \

(20) Pull offthe pressure plate (14) on the bottom ofgear plate (2). ÂŻ Follow tothe instruction mentioned in the above(6).

4 \ I4

(21) Put a distingushing mark on the gear plate (2) for its front and rear, then removeit.

Fig. 10 (22) Remove the O-ring (17), plate seal (15) back-up (16) from the mounting flange (1).

16 (23) Remove the snap ring (19), oil seal (18).

15

then remove the

17

19

Fig. 11

6

3,4 INSTALLATION (I) Makeclean each part.

17 (2)

Grip the mounting flange (1) on a vice at its non-machined surface making the installing face to downside. ¯ Apply sof~ material for gripping.

(3)

Insert the plate seal (15), back-up (16) O-ring (17) into the groove on the mounting flange (1) not allowing them to protrude from the outer peripheral surface. ¯ Pay attention for the inserting direction of the back-up (16), (Refer to Fig. 13.)

PLATE SEAL

BACK-UP brira upside)

~A Fig. 13 Installation (4)

Install the gear plate (2) on the mounting flange (1). ¯ When it is difficult to insert the positioning dowel pin, lightly tap it with a plastic hammer.

(5)

Insert the pressure plate (14) into the bottom of gear plate (2) making the grooved face upside. (Refer to Fig. 15.) ¯ At this time, pay attention for the position of the suction side and delivery side of the pressure plate (14). (Refer Fig. 15.)

(6)

Insert the front drive gear (3) and driven gear (4) aligning the match mark put at the removal. ¯ After the insertion, apply 2~3cc (0.122~ 0.183cu.in) of clean hydraulic oil to the gear tooth groove.

(7)

16 .~j

1

RING

of back-up 14

2

Fig. 14

Delivery side

Insert the pressure plate (14) into the gear plate (2) making the grooved face downside. ¯ At that time, pay attention for the position of the suction side and delivery side of the pressure plate (14). (Refer Fig. 15.)

Suction side

Fig. 15 Installation

7

of pressure plate

(8)

(9)

Securely insert the plate seal (15), back-up (16) and O-ring (17) into the center plate of front pump side, not allowing them to protrude from the outer peripheral surface. ¯ Refer to Fig. 13 for the inserting direction of back-up (16). ¯ Refer to Fig. 17 for the direction of center plate (5).

Making the seal insertion face of center plate (5) to downside, install it to the gear plate (2). ¯ At that time, pay special attention not to allow dropping off or protrusion of the plate seal (15), back-up (16) and/or O-ring (17). ¯ If it is impossible to set the center plate (5) to the place with 2 or 3 mm(0.08 0.12 in) of gap, probably the seals are not properly set in place. Confirm it again.

16 17

17

Fig. 16

The side at whichthis hole goes through the delivery port, is of the front pumpside.

(10) Securely insert the plate seal (15), back-up (16) and O-ring (17) into the groove on center plate (5), not allowing them protrude from the outer peripheral surface. ¯ Refer to Fig. 13 for the inserting direction of back-up (16).

(II)Installthegearplate(6) to the centerplate (5) with the same proceduresas mentioned in theabovepara.(4).

Delivery port

Fig.17 Direction forcenterplate(5)

(12) Insert the pressure plate (14) into the bottom of the gear plate (6) with the same procedures as mentioned in the above para.

(5).

14

(13)Aligningthe matchmark put at the removal, insertthe reardrivegear(7) and the driven gear(8). ¯ After the insertion,apply2~3cc(0.12~ 0.16cu.in)of cleanhydraulic oil to the geartoothgroove.

(14) Insert the pressure plate (14) into the gear plate (6) with the same procedures mentioned in the above para. (7).

Fig. 18

(15) Insert the plate seal (15), back-up (16) O-ring (17) into the center plate (9) of center pump side, with the same procedures as mentioned in the above para. (3). *Refer to Fig. 17 for the direction of center plate (9).

-For the center plate, the side with the suction port is the front pump side, and the side without the suction port is the center pump side.

16

is 17

17

(16) Install the center plate (9) to the gear plate (6), with the same procedures as mentioned in the above para. (9).

Fig. 19

(17) Insert the plate seal (15), back-up (16) O-ring (17) into the groove on the center plate (9), with the same procedures mentioned in the above para. (9).

14 (18) Install the gear plato (10) to the center plate (9), with the same procedures as mentioned in the above para. (5).

(19) Insert the pressure plato (14) into the bottom of the gear plate (10), with the same procedures as mentioned in the above para.

(5).

(20) Insert the 3-series rear drive (11) and driven gear (12) aligning the match mark put at the removal. ÂŻ After the insertion, apply 2~3cc (0.12~ 0.18 cu.in) of clean hydraulic oil to the gear tooth groove.

Fig.20 20

(21) Insert the pressure plate (14) into the gear plate (10), with the same procedures mentioned in the above para. (7).

17 (22) Insert the plate seal (15), back-up (16) O-ring (17) into the groove on the cover (13), with the same procedures as mentioned in the above para. (3).

13

16

(23) Install the cover (13) to the gear plate (10), with the same procedures as mentioned in the above para. (9).

Fig. 21

~~

\

(24) Set the washers(21) to the pads for bolts (20) on the cover (13), and insert and tighten the bolts (20). : 14m, Tightening torque : 4.75±25kgf.m (34± 1.8ft.lbs) Note: Makethe threaded portion wet condition.

JIG(SLEEVE)

(25) Nowtake off the pumpassy from the vice.

Then confirm that the pump can be lightly rotated with a tool turning it from the drive shaft end.

JIG(CAP)

18

(26) Install the oil seal (18) to the mounting flange (1). ¯ Applylithium grease to the lip portion of oil seal. ¯ Refer to Fig. 22 for the installing direction.

Inputshall of pump

(27) Install the snap ring (19) to prevent the oil seal from loosening off. Use the new snap ring at every removal.

4.

1

Fig. 22 Installation ofoil seal (18)

MAINTENANCE

STANDARDS

4.1 CHECK AND MAINTENANCE After the inspection on the removedparts for their damages and/or discoloration, clean them with a cleaning oil. However, do not soak the parts made of rubber into the diesel fuel. Check for the following items, and retouch or replace to newone if necessary.

(1) Gear plate (2)(6)(10) To improve the volumetric efficiency, this gear pumpis so designed that the gear tooth tip is getting in a direct contact with the pumpbody while the operation getting to fit with each other. Therefore , a trace of such direct contact is observed on adjacent to the suction port for the pumponce operated.

The length of the contacting trace is normal if it is less than half of the internal periphery of the gear bore on the pump body, with 0.05ram (0.002in) of the depth (a). When depth (a) becomes more than 0.15mm (0.006in), it is considered that the shaft bearing is worn out. ¯ Replace the pumpassy to new one at a~ 0.15ram(0.006in).

Trace of c°ntact ~

Q)~

a

Suction

~very

Fig. 23 Gear plate 10

side

(2)

Drive Gear (3)(7)(11) Driven Gear (4)(8)(12) Almost no deterioration for the roughness would be observed on the shaft and side face of the gear as far as the hydraulic oil is clean, and smooth trace of contact should be observed on them. When the roughness on the shaft or gear side surface becomes worse in the extent of scratching with a finger nail or gear tooth face is abnormally worn out, replace them to new one. ¯ When the shaft dia. becomes ~ d/ 17.930mm(0.706in), replace the pump assy to new one.

(3)

(4)

Pressure Plate (14) The pressure plate surface has a coating of black color. At the normal condition, as shown in the Fig. 25, a lustrous trace of contact is shown on the sliding surface with the gear. Occasionally, there may appear the back metal showing silver color partially.

Even if the back metal appears on the surface, it is normal unless otherwise the following phenomenon is observed. ¯ The surface becomes rough in the extent of scratching finger nail. ¯ The thickness becomes less than 3.930mm (0.155in).

Mounting Flange (1), Center Plates (5)(9).

Cover (13) As same as the pump body, check for the eccentric wear on the bearing.

The black gray surface is coated with teflon of soft material, pay attention for the handling not to give any scores on it. ¯ When the teflon coating is worn out, and the red cupper color of back metal °appears , in the extent of more than 150 replace it to new one.

(5)

Make sure to replace the plate seal (15), back-up (16), O-ring (17), oil seal (18) snap ring (19) to new one at every removal.

(6)

When either of the mounting flange (1), center plates (5)(9) or cover (13) is replaced, make sure to replace the drive gear and driven gear assembled to it to new one, too.

Otherwise, the required deliverying volume may not be obtained.

Fig. 24 Drive gear, drive gear

Trace of contact Suctionside

.... /

Thickness

-[I-

Delivery side Fig. 25 Pressure plate

Trace of contact on bearing

/

Fig. 26 Flange, plate and cover

11

5. TROUBLESHOOTING Possible

Troubled Condition No oil delivered from

Measure

Causes

Refill hydraulic oil up to specified

Lowoil level in tank.

level.

gear pump

Make them clean.

Clogged suction line or strainer.

contaminated,

When oil

change oil

is

to new

one.

Gear pump pressure

not

mcreased

Pressure plate (14) is worn out.

Replace to new one.

Bearings (pressed fit to (1)(5)(9)

Replace to new one.

(13)) are worn out.

Defective plate seal (15) or back-up

Replace to new one.

(16).

Improper

Using calibrated

pressure

valve.

increase

up to specified

Sucking up air.

level. ¯ Retighten looseness in suction

adjustment

of relief

pressure

gauge,

line. ¯ Refill oil in tank. ¯ Check for oil seal in pump. ¯ Do not operate until bubbles in tank disappear.

Abnormal noise

on pump

Crashing of suction clogging

side hose,

on strainer,

or

Remove cause for crashing

of hose,

make clean strainer.

causing

cavitation Sucking

air

due to looseness

on

Retighten each joint.

suction side joint.

Cavitation due to too high viscosity of oil.

Improper alignment

for shafts

of

¯ Change oil to proper viscosity. ¯ Operate at proper oil temp.

Re-align.

pump and engine.

Oil leakage from pump

Bubbles in hydraulic oil.

Check for the causeof generating

Defective oil seal (18) or O-ring (17)

bubbles, and improve it.

Replace to new one.

of pump.

Re-check for pump.

Dust caught on seal.

12

KOBELI O SHOP MANUAL

ApplicableModel: SK20SR

HYDRAULIC TABLE

PUMP

OF CONTENTS

i. SPECIFICATION i.iGeneral View ......................................................

1 1.2Specification ......................................................

1 2. CONSTRUCTION AND OPERATION 2.1Construction ......................................................

2 2.2Operation ............................................................

4 3. REMOVAL AND INSTALLATION 3.1Removal ............................................................

6 3.2Installation ......................................................... i0 4. MAINTENANCE STANDARDS 4.1Check andMeasurement ....................................

15 5.TROUBLESHOOTING .............................................

16

KOBE

STEEL,

LTD.

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The hydraulic pumpsucks up and pressureizes the hydraulic oil and supplies it to each equipment. This manual covers the fundametals on the hydraulic pumponly.

Please refer to the other manualsfor the role and function of the hydraulic pump. i

Models

Applicable Machines

SK20SR

PM020Ol-

Notes

Revision First edition

Models

Applicable Machines

Date of Issue July, 1997

Notes

Remarks $5120396E

S

1. SPECIFICATION 1.1

GENERAL VIEW

OIL FILLING PORTDELIVERY PORTP1 (PF3/s) pFI/4) DELIVERYPORTP4

/

~

DELIVERYPORTP2J (PF3/8)

\DELIVERYPORTP3 (pF1/2)

SUCTIONPORT$1 (SAEJ518B-11/4)

Fig. 1 General view of hydraulic

pump

1.2 SPECIFICATIONS Table 1 PVD-0B- 19L3 PS-6G3-4280F Piston

Type Displacement Working pressure Rated revolution

P1, P2 cdrev (cu’in]rev) kgffc~ (psi) rpm

Rotational direction Flow rate

~/min (gagmin)

Control characteristics Weight

pump

kg (lbs)

Gear pump P3

P4

9.3x2 (0.57x2)

6.4 (0.39)

2.7 (0.16)

210 (2,990)

180 (2,560)

40 (570)

2,350 (Max. : 2,550) CW(Viewing from pump shaft

side)

21.9x 2 (5.8x 2) 15 (4.0) 6.3 (1.7) I Total power control (P1 ÷ P2 + P3) (with power-shift by P3 pump) 16 (35)

2. CONSTRUCTIONAND OPERATION 2.1 CONSTRUCTION PistonPump (1) Hydraulic 43,42,20,125 23 33 51 39 18 8

9 4

13

15 19 62 61 60 71

\ 67 66 72 65,53,54,68,70

3

\ 34 32 30 36 26 12 10 7 11 6 14 24 35 40 27 56 5 31 2,44,49,52 Fig. 2 Sectional construction of hydraulic pump

NAME Q’TY No, 1 BODY S 1 21 2 BODY H 1 23 3 SHAFT 1 24 4 CYLINDER BARREL 1 25 5 VALVE PLATE 1 26 6 PISTON I0 27 7 SHOE 10 30 8 SHOE HOLDER 1 31 9 BARREL HOLDER 1 32 10 SWASH PLATE 1 33 11 NEEDLE 3 34 12 OSCILLATING PIN 35 2 13 PACKING 1 36 14 SPRING C 1 39 15 SPRING T1 4O 1 18 SPRING HOLDER 42 1 19 SPRING GUIDE 43 1 2O PIN 1 44 No.

NAME Q’TY No. ROD G 1 49 WASHER 2 51 RETAINER 2 52 STOPPER PIN A 1 53 STOPPER PIN B 1 54 PIN WITH HOLE i 56 BALL BEARING 1 6O NEEDLE BEARING 1 61 OIL SEAL 1 62 CONEDDISK SPRING 4 65 SNAP RING 1 66 SNAP RING 1 67 SNAP RING 1 68 O-RING 1 7O O-RING 2 71 PLUG 1 72 O-RING 1 SOCKET BOLT 5

NAME Q’TY PLUG 5 PLUG 1 SPRING WASHER 5 PLUG 1 ’O-RING 1 SPRING PIN 1 SET SCREW 1 NUT 1 SEAL WASHER 1 GEAR PUMP KIT 1 COUPLING 1 COLLAR 1 CAPSCREW 2 WASHER 2 O-RING 1 O-RING 1