Jib Boom Components; Jib Boom - Genie Z-40/23N Service And Repair Manual

September 2016
3-1

Jib Boom

How to Remove the Jib Boom
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.
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 Remove the platform and the platform
mounting weldment.
2 Support the platform rotator with a suitable
lifting device.
3 Tag, disconnect and plug the platform rotator
hydraulic hoses. Cap the fittings on the
rotator.Remove the platform. Remove the
platform mounting weldment and the platform
rotator. Refer to Repair Procedure, How to
Remove the Platform Rotator
4 Attach a lifting strap from an overhead crane
to the jib boom for support.
Component damage hazard.
Hoses and cables can be
damaged if they are kinked or
pinched.
Part No. 1268528

Jib Boom Components

5 Remove the pin retaining fasteners from the
jib boom leveling arm pivot pin at the platform
rotator.
6 Use a soft metal drift to remove the leveling
arm pivot pin. Let the leveling arms and jib
boom lift cylinder hang down.
7 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin.
8 Use a soft metal drift to remove the platform
rotator pivot pin and remove the platform
rotator from the machine.
9 Remove the pin retaining fasteners from the
jib boom lift cylinder rod-end pivot pin. Do not
remove the pin.
10 Slide both of the jib boom leveling arms off of
the jib boom cylinder rod-end pivot pin.
11 Remove all hose and cable clamps from the jib
boom.
12 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses. Cap the fittings on
the jib boom lift cylinder.
Z-40/23N, Z-40/23N RJ
Service and Repair Manual
Crushing hazard. The jib boom
could fall when the pin is
removed if not properly
supported by the overhead
crane.
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.
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