Fork Rotate Cylinder (Option) - Genie GTH-636 Service Manual

Section 4 • Repair Procedures
BOOM COMPONENTS
1-6

Fork Rotate Cylinder (option)

How to Remove the Fork Rotate
Cylinder
1 Fully retract the boom.
2 Fully lower the tips of the lifting fork.
3 Attach a lifting strap from an overhead crane to
the barrel end of the fork rotate cylinder.
Support the cylinder. Do not apply any lifting
pressure.
4 Tag, disconnect and plug the fork rotate
cylinder hoses at the cylinder manifolds. Cap
the fittings.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Component damage hazard.
Hoses can be damaged if they are
kinked or pinched
5 Remove the fasteners securing the fork rotate
cylinder rod end pivot pin to the fork frame.
4 - 20 GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056
6 Use a soft metal drift to remove the pivot pin.
7 Remove the fasteners securing the fork rotate
cylinder barrel end pivot pin to the pivot frame.
8 Use a soft metal drift to remove the pivot pin.
Remove the cylinder from the machine.
Crushing hazard. The cylinder
could fall if not properly supported
when the pivot pin is removed
from the machine.
Note: When installing the cylinder mount plate onto
the boom, torque the fasteners to specification.
Torque specification
Cylinder mount plate fasteners
June 2007
REV C
380 ft-lbs
515 Nm
Part No. 97487