Fork Level Cylinder - Genie GTH-636 Service Manual

Section 4 • Repair Procedures
BOOM COMPONENTS
1-5

Fork Level Cylinder

How to Remove the Fork Level
Cylinder
1 With the boom in the stowed position, fully lower
the tips of the lifting forks.
2 Remove the access cover from the fork of the
boom.
3 Attach a lifting strap from an overhead crane to
the top of the lifting fork frame. Support the
frame. Do not apply any lifting pressure.
4 Attach a lifting strap from a second overhead
crane to the barrel end of the fork level cylinder.
Support the cylinder. Do not apply any lifting
pressure.
5 Tag, disconnect and plug the fork level cylinder
hoses from 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
4 - 18 GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056
6 Remove the fasteners securing the fork level
cylinder rod-end pivot pin to the boom.
7 Use a soft metal drift to remove the pivot pin.
Crushing hazard. The lifting fork
frame could fall if not properly
supported when the pivot pin is
removed from the machine.
8 Remove the fasteners securing the fork level
cylinder barrel-end pivot pin to the boom.
9 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.
June 2007
REV C
Part No. 97487