REV C
Section 4 • Repair Procedures
June 2005
Part No. 52075
TMZ-34/19
4 - 9
9 Using a soft metal drift, remove the jib boom lift
cylinder rod-end pivot pin.
Crushing hazard. The jib boom lift
cylinder could fall if not properly
supported when the rod-end pivot
pin is removed from the machine.
10 Attach a lifting strap from an overhead crane to
the upper jib boom.
11 Remove the pin retaining fastener from the
upper jib boom pivot pin at the jib boom mount.
12 Using a soft metal drift, remove the upper jib
pivot pin from the jib boom mount. Remove the
upper jib boom.
Crushing hazard. The upper jib
boom could become unbalanced
and fall if not properly supported
when the pivot pin is removed.
13 Support and secure the platform mounting
weldment.
14 Remove the pin retaining fastener from the
lower jib boom pivot pin at the platform mount.
15 Using a soft metal drift, remove the lower jib
boom pivot pin at the platform mount. Remove
the platform mount from the machine.
Crushing hazard. The platform
mount could become unbalanced
and fall if not properly supported
when the pivot pin is removed.
JIB BOOM COMPONENTS
16 Tag, disconnect and plug the hydraulic hoses at
the jib boom lift cylinder. 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.
17 Tag and disconnect the wires from the jib boom
lift cylinder solenoid valve.
18 Support the jib boom lift cylinder with an
overhead crane or similar lifting device.
19 Support the lower jib boom with a overhead
crane or similar lifting device.
20 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin.
21 Using a soft metal drift, remove the jib boom
lift cylinder barrel-end pivot pin. Remove the jib
boom lift cylinder from the machine.
Crushing hazard. The jib boom lift
cylinder could become unbalanced
and fall if not properly supported
when the barrel-end pivot pin is
removed.
Crushing hazard. The lower jib
boom could become unbalanced
and fall if not properly supported
when the pivot pin is removed.
Component damage hazard. Be
careful not to damage the solenoid
valve on the cylinder while
removing the cylinder.
800-610-4101
ActionRental.com