December 2019
Service and Repair Manual
Boom Components
Part No. 1300669GT
SX
™
-150
53
28 Remove the fasteners securing the lower wear
pads and remove the wear pads and
aluminum block between the #1 and #2 boom
tubes.
29 Back the wire cables from the opening below
the #1 boom tube into the tube and then push
them out the end of the #1 boom tube.
Note: This will allow the retract cables to come out
with the boom tubes. Remove the retract wire
cables with the #2 boom tube
30 Begin pulling the #2 boom tube from the
#1 boom tube.
Note: Make sure the tube remains parallel to the
#1 boom tube while removing.
31 When approximately 10 feet of the #2 boom
tube remains in the #1 boom tube, attach a
strap from a suitable overhead lifting device
and slightly lift the tube.
Crushing hazard. The number
2 boom tube may become
unbalanced and fall when it is
removed from the number
1 boom tube if it is not properly
supported and attached to the
overhead crane.
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
32 Remove the final two side wear pads from the
platform end of the machine.
Note: Pay careful attention to the location and
amount of shims used with each wear pad.
33 Support and slide the #2 boom tube from the
boom assembly.
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 Boom Lift
Cylinder
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.
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 boom until there is approximately
4 feet / 1.2 m between the turntable and boom
rest pad.
2 Attach a lifting strap from an overhead crane
or other suitable lifting device to the rod end of
the the boom lift cylinder.
Содержание Genie SX-150
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