Platform Leveling Master Cylinder - Genie S-60 Service Manual

Third Edition • First Printing
4-5
Platform Leveling
Master Cylinder
The master cylinder acts as a pump for the slave
cylinder. It is part of the closed loop hydraulic
circuit that keeps the platform level through the
entire range of boom motion. The master cylinder
is located inside the pivot end of the boom.
How to Remove the Platform
Leveling Master Cylinder
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 Raise the boom until the master cylinder
rod-end pivot pin is accessible.
2 Remove the turntable end cover to access the
master cylinder.
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.
Part No. 65196
4 Remove the pin retaining fastener from the
master cylinder barrel-end pivot pin.
5 Place a rod through the barel-end pivot pin and
twist to remove the pin.
6 Attach a lifting strap from an overhead crane to
the lug on the rod end of the master cylinder.
7 Remove the pin retaining fastener from the
rod-end pivot pin.
8 Use a soft metal drift to remove the pivot pin
and remove the master cylinder from the
machine.
Genie S-60 & Genie S-65
Section 7 • Repair Procedures
BOOM COMPONENTS
Crushing hazard. The master
cylinder could become unbalanced
and fall if it is not properly
supported by the lifting device.
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