Part No. 75861
Genie Z-60/34
4 - 7
November 2003
Section 4 • Repair Procedures
REV A
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
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 2, Hydraulic Hose
and Fitting Torque Specifications.
1 Adjust the platform to a level position.
2 Raise the jib boom slightly and place blocks
under the platform for support.
3 Lower the jib 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.
Platform Components
4 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.
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 fasteners from the
slave cylinder rod-end pivot pin. Do not remove
the pin.
6 Remove the pin retaining fastener from the
slave cylinder barrel-end pivot pin. Do not
remove the pin.
7 Support the slave cylinder with a lifting device.
Protect the cylinder rod from damage.
8 Use a soft metal drift to drive the rod-end pivot
pin out.
Crushing hazard. The platform will
fall when the slave cylinder rod-
end pivot pin is removed if not
properly supported.
Component damage hazard. The
slave cylinder rod may become
damaged if it is allowed to fall if
not properly supported by the
lifting device.
9 Use a soft metal drift and drive the barrel-end
pin out.
10 Carefully pull the cylinder out of the primary
boom.
Содержание Z-60/34
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Страница 170: ...Ground Control Box Wiring Diagram Ford LRG 425 EFI Models November 2003 Section 6 Schematics ...
Страница 172: ...Platform Control Box Wiring Diagram Ford LRG 425 EFI Models November 2003 Section 6 Schematics ...
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Страница 176: ...Hydraulic Schematic 2WD Models before serial number 4461 November 2003 Section 6 Schematics ...
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Страница 180: ...Hydraulic Schematic 2WD Models after serial number 4460 November 2003 Section 6 Schematics ...
Страница 182: ...Hydraulic Schematic 4WD Models after serial number 4460 November 2003 Section 6 Schematics ...