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Z-45/25 Bi-Energy • Z-45/25J Bi-Energy
Part No. 237062
September 2015
Section 4 • Repair Procedures
Platform Components
2-1
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
Note: Before cylinder removal is considered, bleed
the slave cylinder to be sure there is no air in the
closed loop.
Note: 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
Z-45/25J:
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.
Note: Do not rest the entire weight of the boom on
the blocks.
4 Tag, disconnect and plug the hydraulic hoses
from the slave cylinder at the unions 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.
5 Remove the pin retaining fastener from the
slave cylinder rod-end pivot pin. Do not remove
the pin.
6
Z-45/25J:
Remove the external snap rings from
the slave cylinder barrel-end pivot pin. Do not
remove the pin.
Z-45/25:
Remove the pin retaining fastener
from the slave cylinder barrel-end pivot pin. Do
not remove the pin.
7 Place a block under the slave cylinder for
support. Protect the cylinder rod from damage.
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