Service and Repair Manual
August 2022
Primary Boom Components
36
Z
®
-60 DC • Z
®
-60 FE
Part No. 1307785GT
4-5
Platform Leveling Master
Cylinder
The master cylinder acts as a pump for the slave
cylinder. It’s part of the closed circuit hydraulic
loop that keeps the platform level through the
entire range of boom motion. The master cylinder
is located at the base of the primary boom.
How to Remove the Platform
Leveling Master Cylinder
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications,
Hydraulic Hose and Fitting Torque
Specifications.
1 Raise the secondary boom until both the rod-
end and barrel-end pivot pins on the master
cylinder are accessible.
2 Use an overhead supporting device to support
the platform. Do not apply lifting pressure.
3 Tag, disconnect and plug the master cylinder
hydraulic hoses. 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.
4 Attach overhead crane or similar lifting device
to the master cylinder.
5 Remove the retaining fasteners from the
master cylinder barrel-end pivot pin.
6 Use a soft metal drift to remove the pin.
7 Remove the retaining fastener from the rod-
end pivot pin.
8 Use a soft metal drift to remove the pin.
9 Remove the master cylinder from the
machine.
Crushing hazard. The master
cylinder could become
unbalanced and fall if not
properly attached to the lifting
device.
Содержание Genie Z-60 DC
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Страница 169: ...August 2022 Service and Repair Manual 157 Ground Control Box Wiring Diagram from Z60H 2548 to 2999 ...
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