Primary Boom Lift Cylinder; How To Remove The Primary Boom Lift Cylinder - Genie Z-34/22 Service Manual

Service Manual
Primary Boom Components
7 Support and slide the extension tube out of the
outer primary boom tube. Place the extension
boom tube on blocks for support.
Crushing hazard. The boom
tubes could become
unbalanced and fall if not
properly supported by the
overhead crane.
Note: During removal, the overhead crane strap will
need to be carefully adjusted for proper balancing.
8 Remove the external snap rings from the
extension cylinder rod-end pivot pins at the
platform end of the extension tube. Use a soft
metal drift to remove the pins.
9 Support and slide the extension cylinder out of
the base end of the extension tube. Place the
extension cylinder on blocks for support.
Note: During removal, the overhead crane strap will
need to be carefully adjusted for proper balancing.
10 Remove and label the wear pads from the
extension cylinder.
Note: Pay careful attention to the location of each
wear pad.
72
4-3

Primary Boom Lift Cylinder

The primary boom lift cylinder raises and lowers
the primary boom. The primary boom lift cylinder is
equipped with a counterbalance valve to prevent
movement in the event of a hydraulic line failure.
How to Remove the Primary How to R emove the Primary Boom Lift Cyli nder
Boom Lift 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 primary boom enough to access the
primary boom lift cylinder rod-end pivot pin.
2 Raise the secondary boom enough to access
the primary boom lift cylinder barrel-end pivot
pin.
3 Attach a lifting strap from an overhead crane
to the primary boom for support. Do not apply
any lifting pressure.
4 Place a block of wood across the upper
secondary boom to support the cylinder when
the rod-end pivot pin is removed.
Z-34/22 Bi-Energy
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.
Part No. 139234
April 2016