Platform Leveling Master Cylinder; How To Remove The Platform Leveling Master Cylinder - Genie Z-34/22 Service Manual

April 2016
10 Carefully pull out and properly support the
extension cylinder from the primary boom
using a lifting strap from an overhead crane.
Crushing hazard. The extension
cylinder could fall when removed
from the extension boom if not
properly supported.
Component damage hazard. Be
careful not to damage the
counterbalance valves on the
primary boom extension cylinder
when removing the cylinder from
the primary boom.
Component damage hazard.
Hoses and cables can be
damaged if the primary boom
extension cylinder is dragged
across them.
Note: During removal, the overhead crane strap will
need to be carefully adjusted for proper balancing.
Note: Note the length of the cylinder after removal.
The cylinder must be at the same length for
installation.
Part No. 139234
Primary Boom Components
4-5
Platform Leveling Master
Cylinder
The platform leveling 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 primary boom
motion. The platform leveling master cylinder is
located inside the upper mid-pivot at the pivot end
of the primary boom.
How to R emove the Pl atform Lev eling M aster Cylinder 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.
Note: Before cylinder removal is considered, bleed
the cylinder to be sure that there is no air in the
closed loop. Refer to Repair Procedure, How to
Bleed the Slave Cylinder.
Z-34/22 Bi-Energy
Service Manual
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
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