Axle Inspection, Internal Service And Repair; Axle Installation - JLG Lull 1044C-54 II Series Service Manual

Axle Inspection, Internal Service and Repair

Axle Installation

31200079
8. Raise the machine using a suitable jack or hoist. Place suitable
supports under both sides of the frame and lower the machine onto the
supports. Ensure that the machine will remain in place during axle
removal.
9. Support the axle that is being removed with a suitable jack, hoist or
overhead crane and sling. DO NOT raise the axle or the machine.
10. Mark and remove both wheel and tire assemblies from the axle that is
being removed.
Note: The wheel and tire assemblies must be re-installed later with the
directional tread pattern "arrows" facing in the direction of forward travel.
11. Remove the drive shaft assemblies.
12. On the front axle remove the capscrew and locknuts securing the lower
position cylinder-mount pin to the front cylinder. Tap the cylinder mount
pin out, and move the cylinder to prevent it from interfering with axle
removal.
13. Remove the four bolts and locknuts securing the axle to the frame.
14. Remove the axles from the machine using the jack, hoist or overhead
crane and sling supporting the axle. DO NOT raise or otherwise disturb
the machine while removing the axle. Balance the axle and prevent it
from tipping, turning or falling while removing it from beneath the
machine. Place the axle on a suitable support or holding stand.
Detailed axle service instructions (covering the axle, differential, brakes
and wheel-end safety, repair, disassembly, reassembly, adjustment and
troubleshooting information) are provided in the Axle Repair Manuals.
(Refer to The Zahnradfabrik (ZF) Repair Manual)
The axle should be checked, serviced and repaired only by experienced
service technicians who are aware of all safety instructions and particular
component features.
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 machine will remain in place during
axle installation. Block the front and rear of both tires on the axle that is
already installed on the machine.
2. If applicable, raise the machine using a suitable jack or hoist. Place
suitable supports beneath the frame and lower the machine onto the
supports, allowing enough room for axle installation. Ensure that the
machine will remain in place during axle installation.
Axles and Brakes
9-5