Jib Boom Lift Cylinder - Genie Z-40/23N Service And Repair Manual

September 2016
3-4

Jib Boom Lift Cylinder

How to Remove the Jib Boom Lift
Cylinder
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications, Hydraulic Hose and Fitting Torque
Specifications.
1 Raise the jib boom slightly and place blocks
under the platform mounting weldment. Then
lower the jib boom until the platform is resting
on the blocks just enough to support the
platform.
Note: Do not rest the entire weight of the boom on
the blocks.
2 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses. Cap the fittings on
the cylinder.
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.
3 Remove the pin retaining fasteners from the
jib boom lift cylinder rod-end pivot pin. Do not
remove the pin.
Part No. 1268528
Jib Boom Components
4 Use a soft metal drift to tap the rod-end pivot
pin half way out and lower one of the leveling
links to the ground. Tap the pin the other
direction and lower the opposite leveling link.
Do not remove the pin.
5 Support the jib boom with a suitable lifting
device.
6 Remove the pin retaining fasteners from the
jib boom lift cylinder barrel-end pivot pin. Use
a soft metal drift to remove the barrel-end pivot
pin.Let the cylinder hang down.
7 Attach a lifting strap from an overhead crane
to the lug on the rod end of the jib boom lift
cylinder.
8 Use a soft metal drift to remove the jib boom
lift cylinder rod-end pin. Remove the jib boom
lift cylinder from the machine.
Z-40/23N, Z-40/23N RJ
Service and Repair Manual
Crushing hazard. The jib boom
lift cylinder may become
unbalanced and fall when it is
removed from the machine if it is
not properly supported by the
overhead crane.
Crushing hazard. The jib boom
lift cylinder may become
unbalanced and fall when it is
removed from the machine if it is
not properly supported by the
overhead crane.
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