
4 - 8
Z-45/25 Bi-Energy • Z-45/25J Bi-Energy
Part No. 237062
September 2015
Section 4 • Repair Procedures
15 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin.
16 Use a soft metal drift to remove the pin and let
the cylinder hang down.
Crushing hazard. The jib boom
could fall when the barrel-end pivot
pin is removed if not properly
supported by the overhead crane.
17 Remove the pin retaining fastener from the jib
boom pivot pin. Use a soft metal drift to remove
the pin, then remove the jib boom from the
bellcrank.
Crushing hazard. The jib boom
could become unbalanced and fall
when removed from the machine if
not properly attached to the
overhead crane.
18 Attach a lifting strap from an overhead crane to
the lug on the rod end of the jib boom lift
cylinder.
19 Use a soft metal drift to remove the jib boom lift
cylinder rod-end pivot pin, then remove the jib
boom lift cylinder from the bellcrank.
Crushing hazard. The jib boom lift
cylinder could become unbalanced
and fall when removed from the
machine if not properly attached to
the overhead crane.
JIB BOOM COMPONENTS, Z-45/25J
3-2
Jib Boom Lift Cylinder
How to Remove the Jib Boom
Lift Cylinder
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring on the fitting and/or hose end must be
replaced and then torqued to specification during
installation.
Refer to Section 2,
Hydraulic Hose and Fitting
Torque Specifications.
1 Raise the jib boom slightly and place blocks
under the platform mounting weldment. Then
lower the jib boom until the platform is resting
on the blocks just enough to support the
platform.
Note: Do not rest the entire weight of the boom on
the blocks.
2 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses. Cap the fittings on the
cylinder.
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.
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