40 GTH-4016SR • GTH-4018SR Part No. 57.4400.9203
March 2010
Section 4 • Repair Procedures
REV A
Boom Components
1-1 How to Replace the Boom
Wear Pads
1. Extend the boom until the wear pads are
accessible.
2. Lower wear pads: Attach a lifting strap from
an overhead crane to the fork end of the
boom. Lift the boom just enough to remove the
weight from the pads and allow the pad to be
replaced.
3. Remove the wear pad mounting fasteners and
remove the wear pads from the boom.
4. Lubricate the wear surface of the new pads
with interflon grease.
5. Install the new wear pads. Install and securely
1-2 How to Remove the Lifting
Fork Frame
1. With the boom in the stowed position, attach
a lifting strap from an overhead crane to the
top of the lifting fork frame at the front of the
boom. Support the frame. Do not apply any
lifting pressure.
2. If the machine is equipped with the lifting fork
frame locking cylinder, disconnect the locking
cylinder hoses from the boom.
3. Remove the screw securing the fork level
cylinder pivot pin to the lifting fork.
4. Use a soft metal drift to remove the pivot pin.
5. Remove the screw securing the fork frame
pivot pin to the boom.
6. Use a soft metal drift to remove the pivot pin.
WARNING
Crushing hazard. The fork frame
could fall if not properly supported
when the pivot pin is removed
from the machine.
7. Remove the fork frame from the boom.
