March 2022
Maintenance Manual
Programmed Maintenance Procedures
Part No. 1268489GT
S
®
Booms • Z
®
Booms
159
Models with TraX:
1 Select the drive hub to be serviced. Loosen
and remove as many sprocket retaining
fasteners as possible from the hub adapter.
2 Drive the machine in either direction just
enough to access the remaining fasteners. Do
not remove the the retaining fasteners.
3 Chock the tracks at the opposite end of the
machine to prevent the machine from rolling.
4 Center a lifting jack of ample capacity
(20,000 lbs / 10,000 kg) under the drive
chassis between the tracks.
5 Lift the machine until the tracks are off the
ground and place jack stands under the drive
chassis for support.
6 Attach a lifting strap from an overhead crane
(2000 lbs / 1000 kg) to the center-point of the
track assembly, above the sprocket.
7 Remove the remaining sprocket retaining
fasteners from the hub adapter.
8 Carefully remove the track assembly from the
drive hub and set aside.
Crushing hazard. The track
assembly could become
unbalanced and fall when
removed from the machine if
not properly supported by the
overhead crane.
9 Locate the hub disconnect pin in the center of
the drive hub. Manually depress the pin and
rotate the drive hub until one of the two plugs
is at the lowest point.
1 drive hub plug
10 Remove the plugs and drain the oil into a
suitable container.
11 Manually depress the hub disconnect pin and
rotate the drive hub until the plugs are one on
top and the other at 90 degrees.
12 Fill the hub until the oil level is even with the
bottom of the side plug hole. Refer to
Specifications,
Hydraulic Specifications
.
13 Install the plugs into the drive hub.
14 Attach a lifting strap from an overhead crane
to the center-point of the track assembly,
above the sprocket.
15 Install the track assembly onto the drive hub
adapter while guiding the hub adapter studs
into the sprocket of the track assembly. Install
as many sprocket retaining fasteners as
possible to the hub adapter and torque to
specification. Refer to Torque Specifications,
TraX Torque Specifications
.
Summary of Contents for Genie Lift Guard S-40
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