Service and Repair Manual
June 2021
Track Components
78
S
®
-80 J, S
®
-80 J TraX
™
Part No. 1285307GT
10-1
Track Assembly
How to Remove a Track
Assembly
Note: Perform this procedure on a firm, level
surface with the machine in the stowed position.
1 Select a track assembly to remove. 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 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 then place jack stands under the
drive chassis for support.
6 Attach a lifting strap from an overhead
supporting device 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.
How to Replace the Track
How to Replace the Track
1 Remove the track assembly from the
machine. Refer to Repair Procedure,
How to
Remove a Track Assembly
.
Note: The sprocket is comprised of two halves.
Before removing the track assembly from the
machine and to ease the removal of the sprocket,
drive the machine until one complete half of the
sprocket is located above the undercarriage of the
track assembly.
2 Loosen the grease plug on the track tension
cylinder to relieve the track tension. Clean up
any grease that has spilled.
3 Remove the 2 sprocket retaining fasteners.
Remove the sprocket half from the track
assembly.
4 Carefully remove the track from the
undercarriage.
5 Use an overhead supporting device to lay the
undercarriage on its side with the drive
sprocket bearing assembly facing upward and
the track tension cylinder towards the ground.
Содержание Genie S-80 J
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