Lull 944E-42 Service Manual User Manual

Page 154

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Axles, Drive Shafts, Wheels, Tires and Brakes

5.8

Model 644E-42/944E-42

Rev. 6/04

b. Axle Inspection, Internal Service and Repair

Note: Detailed axle service instructions (covering axle,
brakes and wheel end safety, repair, disassembly,
reassembly, adjustment and troubleshooting information)
are provided in the ZF Axle Repair Manual, (944E Front)
Model MS-T 3060, JLG P/N 8990430 (ZF P/N 5871 560
002) and (944E Rear & 644E Front and Rear) Model
MS-T 3045, JLG P/N 8990419 (ZF P/N 5871 550 002).

The axle should be checked, serviced and repaired only
by experienced service technicians who are aware of all
safety instructions and particular component features.

c. Installation

The front and rear axle assemblies differ in that the front
axle assembly is equipped with a parking brake
mechanism and limited-slip feature; the rear axle has
neither. The steps below outline a typical axle installation
procedure, suitable for either the front or the rear axle
assembly.

1. Before proceeding, ensure that the vehicle will

remain in place during axle installation. Block the
front and rear of both tires on the axle that is already
installed on the vehicle.

2. If applicable, raise the vehicle using a suitable jack

or hoist. Place suitable supports beneath the frame
and lower the vehicle onto the supports, allowing
enough room for axle installation. Ensure that the
vehicle will remain in place during axle installation.

3. On the front axle, if applicable, uncap and install

the service brake (1), parking brake (2) and steering
hydraulic fittings (3) and hoses in their previously
marked positions.

4. On the rear axle, if applicable, uncap and install the

service brake (4) and steering hydraulic fittings (5)
and hoses in their previously marked positions.

5. Using a suitable jack, hoist or overhead crane and

sling, remove the axle (6-Front or 7-Rear) from its
support or holding stand. Balance the axle, and
prevent it from tipping, turning or falling while
positioning it beneath the vehicle. DO NOT raise or
otherwise disturb the vehicle while installing the axle.
Keep the axle supported and balanced on the jack,
hoist or overhead crane and sling throughout the
installation procedure.

Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.

Note: If you are installing the rear axle it may be easier
to install the capscrews if the transfer carriage was
moved all the way forward.

6. Coat the capscrews with anti-seize compound.

Install the four capscrews (8), four new elastic
locknuts (9), and eight hardened washers (10)
securing the front or rear axle supports to the vehicle
frame. Torque capscrews to 600-680 lb-ft (813-922
Nm).

MU1510

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3

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MU1520

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5

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