Genie GTH-636, Service And Repair Manual

Page: 31 / 109

April 2018 Service and Repair Manual
Boom Components
Part No. 1287209GT GTH-636 21
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
1 Extension chain anchors
2 Retract chain anchor
15 Working at the fork end of the boom, remove
the wear pads from boom tube number 1.
16 Support and slide boom tube number 2 out of
boom tube number 1. Place boom tube
number 2 on a structure capable of supporting
it.
Crushing hazard. Boom tube
number 2 could become
unbalanced and fall when
removed from the boom tube
number 1 if not properly
supported and attached to the
overhead crane.
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
1-2
Boom Lift Cylinder
How to Remove the 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 Attach a lifting strap from an overhead 10 ton /
10,000 kg crane to the fork end of the boom.
Support the boom. Do not apply any lifting
pressure.
2 Tag, disconnect and plug the hydraulic hoses
at the lift cylinder manifold. Cap the fittings.
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.
Component damage hazard.
Hoses can be damaged if they
are kinked or pinched.
Attach a lifting strap from an overhead crane to the
rod end of the lift cylinder. Support the cylinder. Do
not apply any lifting pressure.
3 Remove the fasteners securing the lift cylinder
barrel-end pivot pin to the chassis.