DRIVE AXLE

H3.50-5.50XM (H70-120XM) [K005, L005]

PART NO. 1466247

1400 SRM 731

SAFETY PRECAUTIONS

MAINTENANCE AND REPAIR

• When lifting parts or assemblies, make sure all slings, chains, or cables are correctly

fastened, and that the load being lifted is balanced. Make sure the crane, cables, and
chains have the capacity to support the weight of the load.

• Do not lift heavy parts by hand, use a lifting mechanism.

• Wear safety glasses.

• DISCONNECT THE BATTERY CONNECTOR before doing any maintenance or repair

on electric lift trucks.

• Disconnect the battery ground cable on internal combustion lift trucks.

• Always use correct blocks to prevent the unit from rolling or falling. See HOW TO PUT

THE LIFT TRUCK ON BLOCKS in the Operating Manual or the Periodic Mainte-
nance section.

• Keep the unit clean and the working area clean and orderly.

• Use the correct tools for the job.

• Keep the tools clean and in good condition.

• Always use HYSTER APPROVED parts when making repairs. Replacement parts

must meet or exceed the specifications of the original equipment manufacturer.

• Make sure all nuts, bolts, snap rings, and other fastening devices are removed before

using force to remove parts.

• Always fasten a DO NOT OPERATE tag to the controls of the unit when making repairs,

or if the unit needs repairs.

• Be sure to follow the WARNING and CAUTION notes in the instructions.

• Gasoline, Liquid Petroleum Gas (LPG), Compressed Natural Gas (CNG), and Diesel fuel

are flammable. Be sure to follow the necessary safety precautions when handling these
fuels and when working on these fuel systems.

• Batteries generate flammable gas when they are being charged. Keep fire and sparks

away from the area. Make sure the area is well ventilated.

NOTE:

The following symbols and words indicate safety information in this

manual:

WARNING

Indicates a condition that can cause immediate death or injury!

CAUTION

Indicates a condition that can cause property damage!

Drive Axle

Table of Contents

TABLE OF CONTENTS

General ...............................................................................................................................................................

Description .........................................................................................................................................................

Drive Axle Repair...............................................................................................................................................

Remove and Disassemble ..............................................................................................................................

Clean and Inspect ..........................................................................................................................................

Assemble and Install .....................................................................................................................................

Troubleshooting..................................................................................................................................................

This section is for the following models:

H3.50-5.50XM (H70-120XM) [K005, L005]

"THE

QUALITY

KEEPERS"

HYSTER

APPROVED

PARTS

1400 SRM 731

Drive Axle Repair

General

This section has the description and repair procedures for the drive axle, wheel bearings, and the mounts
for the axle housing. Information for the differential and ring and pinion gears is in the section Powershift
Transmission 1300 SRM 728.

Description

The drive axle assembly includes the axle shafts,
brake drums, hubs, spindles, axle mounts, and the
differential or axle motor housing. See Figure 1. The
drive axle is held to the lift truck by axle mounts.
These axle mounts are fastened to the frame of the
lift truck by alignment dowels and nuts and bolts.
The outer ends of the spindles are the mounts for
the wheel bearings. The wheel bearings are tapered

roller bearings with the cups pressed into the hub.
The nut on the end of the spindle holds and adjusts
the wheel bearings. The axle shafts are fastened to
the hubs by capscrews. The backing plate and brake
assembly are fastened to the axle mounts. The axle
mounts are also the hangers for the mast.

The wheel bearings are lubricated with wheel bear-
ing grease.

Drive Axle Repair

REMOVE AND DISASSEMBLE

WARNING

When putting the lift truck on blocks, make
sure the surface is solid, even, and level. Any
blocks used to support the lift truck must be
solid, one-piece units.

Place blocks on each side (front and rear) of the
steering tires to prevent movement of the lift
truck.

Raise the lift truck and place blocks under the
frame so the drive wheels are just touching the
floor. Place blocks under the counterweight to
maintain stability.

Remove the mast assembly as directed in Mast,
Description and Repairs 4000 SRM 736.

WARNING

Deflate pneumatic tires completely before re-
moving them from the lift truck. Air pressure
in the tires can cause the tire and rim parts to
explode, causing serious injury or death.

Remove the wheel assemblies from the drive
axle.

NOTE:

The following procedure is for one side of the

axle assembly. The procedure is the same for both
sides.

Remove the brake drum. If the brake drum can-
not be removed easily, loosen the brake shoes as
follows (see Figure 1):

a. Make sure the parking brake is released.

NOTE:

It may be necessary to push the adjuster pawl

away from the adjuster wheel in order to turn the
adjuster wheel.

b. Place a screwdriver through the hole in the

back plate to turn the adjuster wheel and
loosen the brake shoes.

Refer to Brake System 1800 SRM 734 for brake
system repair.

Remove the capscrews from the axle shaft hub.

Install two capscrews removed in Step 7 into the
two holes next to the alignment pins. Alternately
tighten each capscrew to remove the axle shafts
from the axle assembly.

Disconnect the brake lines at the wheel cylin-
ders. Disconnect the parking brake cable at the
parking brake lever, and loosen the cable clamps
along the frame for the parking brake cable.

10. Drain the oil from the differential.

11. Remove the transmission mounting bolts from

the differential housing.

Drive Axle Repair

1400 SRM 731

CAPSCREW

AXLE SHAFT

BRAKE DRUM

OUTER LOCK NUT

LOCK PLATE

INNER LOCK NUT

OUTER BEARING

BEARING CUP

ALIGNMENT PINS

10. HUB
11. WHEEL STUB
12. INNER SEAL
13. BEARING CUP
14. INNER BEARING
15. OUTER SEAL

16. DIFFERENTIAL

HOUSING

17. FILL AND DRAIN

PLUGS

18. O-RING
19. LOCKWASHER
20. CAPSCREW
21. SPINDLE

22. SHIMS
23. LOCKWASHER
24. CAPSCREW
25. AXLE BUSHING
26. L.H. AXLE HANGER
27. L.H. BRAKE

ASSEMBLY

28. CAPSCREW

Figure 1. Powershift Transmission Drive Axle Assembly

12. Using either a roller jack or forklift, support the

axle housing.

13. Place blocks under the transmission housing,

and remove pins, bolts, and nuts that hold the
axle mounts to the frame of the lift truck.

14. Remove the axle assembly from the lift truck.

15. Remove the outer lock nut, lock plate, inner lock

nut, outer wheel bearing, and hub from the axle
assembly.

16. Remove the outer oil seal and inner bearing from

the hub. Discard the seal.

17. Remove the brake assembly from the hanger. If

the brake assembly is to be repaired, see Brake
System 1800 SRM 734.

18. Remove the hanger and axle bushing from the

spindle.

19. Remove the shims only if they are damaged, and

note the number of shims removed from each
side.

1400 SRM 731

Drive Axle Repair

20. Remove the spindle from the differential housing

and discard the O-ring.

CLEAN AND INSPECT

WARNING

Cleaning solvents can be flammable and toxic
and can cause skin irritation.

When using

cleaning solvents, always follow the solvent
manufacturer’s recommended safety precau-
tions.

Clean all the parts of the drive axle with solvent.

Inspect the bearings and bearing cups for dam-
age. If either bearing or bearing cup is damaged,
replace both bearings and bearing cups. Also re-
place the inner hub seal.

Inspect the spindle, axle bushing, and hanger for
damage. Replace parts if damaged.

Inspect the splines of the axle shaft and replace
the axle shaft if the splines are damaged.

ASSEMBLE AND INSTALL

NOTE:

The following procedure is for one side of the

axle assembly. The procedure is the same for both
sides. See Figure 1.

Install a new O-ring on the spindle, and using
capscrews and lockwashers, install the spindle in
the differential housing. Tighten the capscrews
using the tightening pattern in Figure 2 to 435
to 480 N•m (321 to 354 lbf ft).

If the shims were removed, install the number
of shims on each side noted during disassembly.
Install the capscrew. Tighten the capscrew to 26
to 29 N•m (231 to 258 lbf in).

Install the axle bushing into the hanger. Coat
the spindle with grease and install the hanger
assembly on the spindle, and coat the brake as-
sembly mounting area with HCE 98 Sealant.

Using either a roller jack or forklift, support the
axle housing.

Using the axle mounting bushings, bolts, and
lockwashers, install the axle assembly on the lift
truck. Tighten the bolts to 320 to 350 N•m (236
to 258 lbf ft).

Using capscrews, install the brake assembly
on the hanger. Tighten the capscrews using the
tightening pattern in Figure 3 to 340 to 375 N•m
(251 to 277 lbf ft).

Using multipurpose grease, pack the wheel bear-
ings. See Figure 4.

Install the inner bearing and outer oil seal in the
hub assembly and install the hub assembly on
the spindle.

Install the outer bearing and inner lock nut.
Tighten the inner lock nut to 200 to 225 N•m
(148 to 166 lbf ft) while rotating the hub assem-
bly at the same time.

10. Loosen the inner lock nut until the wheel hub

turns freely with NO end play. The torque on the
inner lock nut at this time should be less than
27 N•m (240 lbf in).

11. Retighten the inner lock nut to 34 to 37 N•m (25

to 27 lbf ft).

Figure 2. Spindle Tightening Pattern

Figure 3. Brake Assembly Tightening Pattern

Drive Axle Repair

1400 SRM 731

NOTE: POWERSHIFT TRANSMISSION DRIVE AXLE HUB ASSEMBLY.

AXLE SHAFT

LOCK NUT

LOCK PLATE

LOCK NUT

OUTER BEARING

HUB ASSEMBLY

BEARING CUP

INNER SEAL

BEARING CUP

10. INNER BEARING
11. OUTER SEAL
12. AXLE BUSHING
13. SPINDLE
14. O-RING
15. HANGER
16. BRAKE ASSEMBLY
17. BRAKE DRUM

Figure 4. Hub Assemblies

12. Install the lock plate, placing the tang in the

notch of the axle spindle. If one of the holes in
the lock plate does not align with the pin on the
lock nut, and the tang on the lock plate does not
align with the notch on the spindle, tighten the
lock nut until alignment is achieved.

13. Install the outer lock nut and tighten to 135 to

150 N•m (100 to 111 lbf ft).

14. Coat the mating surface on the transmission

with sealant, Hyster Part No. 313022. Install
the transmission to differential housing mount-
ing bolts and tighten to 66 N•m (49 lbf ft).

15. Adjust the clearance of the brake shoes as de-

scribed in Brake System 1800 SRM 734.

16. Install the brake drum on the hub.

17. Fill tires to correct pressure using the procedures

in Periodic Maintenance 8000 SRM 737.

18. Install the wheels and nuts and tighten the nuts

to 610 to 680 N•m (450 to 502 lbf ft).

19. Put sealant on the flange of the axle shaft. Install

the axle shaft and capscrews. Tighten the cap-
screws using the tightening pattern in Figure 5
to 225 to 250 N•m (166 to 184 lbf ft).

20. Install and tighten the drain plug. Fill the dif-

ferential housing with SAE 90 EP gear oil to the
lower edge of the fill hole. Install the fill plug.
Connect the brake lines and parking brake ca-
bles.

1400 SRM 731

Troubleshooting

21. Remove the air from the brake system as de-

scribed in the section for the Brake System
1800 SRM 734.

22. Install mast assembly as directed in Mast, De-

scription and Repairs 4000 SRM 736

A. ROTATED 90

Figure 5. Axle Shaft Tightening Pattern

Troubleshooting

PROBLEM

POSSIBLE CAUSE

PROCEDURE OR ACTION

The lift truck will not move.

An axle shaft is broken.

Install a new axle shaft.

The drive axle has leaks.

The drain or fill plug is loose or miss-
ing.

Install plug.

The seals have damage.

Install new seals.

The O-rings have damage.

Install new O-rings.

The drive axle makes noise.

The bearings have damage.

Install new bearings.

The brake assembly is damaged.

Repair the brakes as necessary.

The oil level is too low.

Fill the axle to the correct level.

The axle capscrews are loose.

Tighten the axle capscrews.

Axle mounts are loose.

Tighten the mount capscrews.

NOTES

____________________________________________________________

TECHNICAL PUBLICATIONS

1400 SRM 731

9/03 (9/02)(8/99) Printed in United Kingdom

Document Outline

Wyszukiwarka

Podobne podstrony:
1494953 1400SRM0944 (09 2003) UK EN
1498445 1400SRM0945 (09 2003) UK EN
1510463 1400SRM0984 (09 2003) UK EN
897391 1400SRM0450 (09 2003) UK EN
910073 1400SRM0049 (09 2003) UK EN
897394 1900SRM0453 (09 2003) UK EN
1466241 1600SRM0732 (10 2003) UK EN
897987 1800SRM0659 (09 2003) UK EN
1494955 2000SRM0943 (09 2003) UK EN
897110 1900SRM0328 (09 2003) UK EN
897993 1600SRM0671 (09 2003) UK EN
897392 1600SRM0451 (09 2003) UK EN
1466235 1600SRM0733 (09 2003) UK EN

więcej podobnych podstron

1466247 1400SRM0731 (09 2003) UK EN

Document Outline