REV B
Section 4 • Repair Procedures
June 2005
4 - 14
TMZ-34/19
Part No. 52075
BOOM COMPONENTS
13 Remove the pin retaining fasteners from the
primary boom pivot pin at the jib boom mount.
14 Using a soft metal drift, remove the primary
boom pivot pin at the jib boom mount.
Crushing hazard. The jib boom
mount could become unbalanced
and fall if not properly supported
when the pivot pin is removed.
15 Remove the jib boom mount from the machine.
Carefully pull the hoses and cables through the
jib mount while removing it.
Crushing hazard. The jib boom
mount could become unbalanced
and fall if not properly supported
when removed from the machine.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
16 Attach a lifting strap from an overhead crane to
the primary boom linkage.
17 Remove the pin retaining fasteners from the
primary boom linkage pivot pin at the boom
pivot.
18 Using a soft metal drift, remove the primary
boom linkage pivot pin at the boom pivot.
Crushing hazard. The primary
boom linkage could become
unbalanced and fall if not properly
supported when the pivot pin is
removed.
19 Remove the primary boom linkage from the
machine.
Crushing hazard. The primary
boom linkage could become
unbalanced and fall if not properly
supported when removed from the
machine.
20 Carefully lay the hoses and cables over the
boom pivot.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
21 Support and secure the primary boom lift
cylinder to an appropriate lifting device.
22 Tag, disconnect and plug the hydraulic hoses at
the primary boom lift cylinder. Cap the fitting 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.
23 Tag and disconnect the wires from the primary
boom lift cylinder.
24 Remove the pin retaining fasteners from the
primary boom lift cylinder rod-end pivot pin.
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