Platform Rotator - Genie Z-51/30 Service Manual

First Edition • Second Printing
7 Support the slave cylinder with a lifting device.
8 Z-45/25J Models: Support the jib boom bell
crank with a suitable lifting device.
9 Use a soft metal drift to drive the rod-end pivot
pin out.
Crushing hazard. The jib boom
bell crank may fall when the slave
cylinder rod-end pivot pin is
removed if it is not properly
supported.
Component damage hazard. The
slave cylinder rod may become
damaged if it is allowed to fall if it
is not properly supported by the
lifting device.
10 Use a soft metal drift and drive the barrel-end
pin out.
11 Carefully pull the cylinder out of the primary
boom.
How to Bleed the Slave Cylinder
Do not start the engine. Use
auxiliary power for all machine
functions in this procedure.
1 Raise the primary boom to a horizontal position.
2 Move the platform level switch up and down
through two platform leveling cycles to remove
any air that might be in the system.
Part No. 52709
2-3

Platform Rotator

The platform rotator is a hydraulically-activated,
helical gear assembly used to rotate the platform
160 degrees.
How to Remove the
Platform Rotator
1 Remove the platform. See 2-1,
How to Remove the Platform .
Genie Z-45/25 & Genie Z-45/25J
Section 7 • Repair Procedures
PLATFORM COMPONENTS
Component damage hazard. Mark
the platform mounting weldment
and the rotator flange before
removing the platform mounting
weldment. The platform mounting
weldment must be replaced in the
exact same position on the rotator
flange as it was before removal. If
a new rotator is installed or the
rotator is disassembled, proper
alignment can be achieved by
rotating the rotator all the way to
the left and then installing the
platform mounting weldment all
the way in the left 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 Two, Hydraulic
Hose and Fitting Torque
Specifications.
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