Jib Boom Rotator (Models With Rotating Jib Boom) - Genie Z-30/20N Service Manual

April 2005
REV B
3-3
Jib Boom Rotator
(models with rotating jib boom)
The platform rotator is a hydraulically activated
helical gear assembly used to rotate the jib boom
160 degrees.
How to Remove the Jib Boom
Rotator
Perform this procedure with the
boom in the stowed position.
When removing a hose assembly
or fitting, the O-ring on the fitting
and/or hose end must be replaced
and then torqued to specification
during installation. Refer to
Section 2, Hydraulic Hose and
Fitting Torque Specifications.
1 Remove the jib boom, See 3-1, How to Remove
the Jib Boom.
2 Support and secure the jib boom rotator to an
appropriate lifting device.
3 Remove the eight mounting bolts from the jib
boom rotator mount.
4 Remove the center bolt. Carefully remove the
jib boom rotator from the machine.
Crushing hazard. The jib boom
rotator could become unbalanced
and fall when removed from the
machine if not properly supported
and secured to the lifting device.
When installing the jib boom
rotator, be sure to torque the
fasteners to specification. Refer to
Section 2, Specifications.
Part No. 106373
5 Support and secure the jib boom bell crank to
an appropriate lifting device.
6 Remove the pin retaining fasteners from the
slave cylinder rod-end pivot pin. Do not remove
the pin.
7 Place a block of wood under the platform
leveling slave cylinder for support. Protect the
cylinder rod from damage.
8 Remove the pin retaining fasteners from the jib
boom bell crank at the extension boom. Use a
soft metal drift to remove the pin.
9 Use a soft metal drift to remove the slave
cylinder rod-end pivot pin.
10 Remove the jib boom bell crank from the
extension boom.
Genie Z-30/20N
Section 4 • Repair Procedures
JIB BOOM COMPONENTS
Crushing hazard. The jib boom
bell crank could become
unbalanced and fall when the pins
are removed if not properly
supported and secured to the
lifting device.
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