Boom Extension Cylinder - Genie S-65 XC Service And Repair Manual

September 2018
8 Use a slide hammer to remove the barrel-end
pivot pins.
Crushing hazard. The lift cylinder
could become unbalanced and
fall if not properly supported and
secured to the lifting device.
9 Move the boom lift cylinder towards the
counterweight end of the machine. Rotate the
boom lift cylinder until the barrel-end pivot pin
bores will clear the boom linkage.
10 Carefully remove the boom lift cylinder from
the machine.
Crushing hazard. The lift cylinder
could become unbalanced and
fall if not properly supported and
secured to the lifting device.
Part No. 1288652GT
4-4

Boom Extension Cylinder

The boom extension cylinder is located inside the
boom assembly and incorporates cables and
pulleys that are responsible for extending the
number 3 boom tube. The primary boom extension
cylinder is equipped with counterbalance valves to
prevent movement in the event of a hydraulic line
failure.
How to Remove the Boom
Extension 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: Perform this procedure with the boom fully
retracted.
1 Raise the boom to a horizontal position.
2 Remove the boom end cover from the pivot
end of the boom while guiding the small cable
from the string potentiometer out of the slot of
the cover. Rest the cover and string
potentiometer on the counterweight.
® ™ ® ™
S -60 XC • S -65 XC
Service and Repair Manual
Repair Procedures
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.
Component damage hazard. The
cable from the string potentiometer
can become damaged if it is kinked
or pinched.
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