September 2016
Part No.1272857
GTH-1544
3-11
Section 3 • Repair Procedures
1-3
Boom Lift Cylinder
How to Remove the Lift
Cylinder
Note: When removing a hose assembly or
fi
tting,
the O-ring on the
fi
tting and/or hose end must be
replaced and then torqued to speci
fi
cation during
installation. Refer to Section 2,
Hydraulic Hose
and Fitting Torque Specifi cations
.
1 Attach a lifting strap from an overhead 22045
lbs / 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
fi
ttings.
WARNING
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.
NOTICE
Component damage hazard.
Hoses can be damaged if they
are kinked or pinched.
3 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.
4 Remove the fasteners securing the lift cylinder
barrel-end pivot pin to the chassis.
5 Use a soft metal drift to remove the pivot pin.
6 Remove the fasteners securing the lift cylinder
rod-end pivot pin to the boom.
7 Use a soft metal drift to remove the pivot pin.
DANGER
Crushing hazard. The boom
will fall if not properly supported
when the pivot pin is removed
from the machine.
8 Using the overhead crane, raise the boom to a
horizontal position. Remove the cylinder from
the machine.
DANGER
Crushing hazard. The cylinder
could fall if not properly
supported when removed from
the machine.
BOOM COMPONENTS
