7 - 14
Genie Z-45/25 & Genie Z-45/25J
Part No. 52709
First Edition • Second Printing
Section 7 • Repair Procedures
PLATFORM COMPONENTS
2-2
Platform Leveling Slave Cylinder
The slave cylinder and the rotator pivot are the
two primary supports for the platform. The slave
cylinder keeps the platform level through the
entire range of boom motion. It operates in a
closed-circuit hydraulic loop with the master
cylinder. The slave cylinder is equipped with
counterbalance valves to prevent movement in
the event of a hydraulic line failure.
How to Remove the Platform
Leveling Slave Cylinder
Before cylinder removal is
considered, bleed the slave
cylinder to be sure there is no
air in the closed loop.
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.
1
Z-45/25J Models:
Extend the primary boom
until the slave cylinder barrel-end pivot pin is
accessible.
2 Raise the primary boom slightly and place
blocks under the platform for support.
3 Lower the primary boom until the platform is
resting on the blocks just enough to support the
platform.
Do not rest the entire weight of the
boom on the blocks.
4
Z-45/25J Models:
Tag, disconnect and plug the
hydraulic hoses from the slave cylinder at the
union located near the jib/rotate manifold and
connect them together using a connector.
Connect the hoses from the cylinder together
using a connector.
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.
Z-45/25 Models:
Tag, disconnect and plug the
hydraulic hoses from the slave cylinder and
connect the hoses together using a connector.
Cap the fittings on the cylinder. Then pull the
slave cylinder hoses out through the primary
extension 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.
5 Remove the pin retaining fastener from the
slave cylinder rod-end pivot pin. Do not remove
the pin.
6
Z-45/25J Models:
Remove the external snap
rings from the barrel-end pivot pin.
Z-45/25 Models:
Remove the pin retaining
fastener from the slave cylinder barrel-end pivot
pin. Do not remove the pin.
Содержание Z-45 XC
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