Genie TMZ-50/30 Service Manual page 63

June 2005
800-610-4101
ActionRental.com
REV B
9 Mark the location of each cable retaining plate
in the upper jib boom.
10 Tag and remove the cable retaining plates from
the upper jib boom.
11 Attach a lifting strap of suitable capacity from an
overhead crane to the rod end of the jib boom
lift cylinder.
12 Remove the pin retaining fastener from the jib
boom lift cylinder rod-end pivot pin.
13 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.
14 Attach a lifting strap of suitable capacity from an
overhead crane to the upper jib boom.
15 Remove the pin retaining fastener from the
upper jib boom pivot pin at the jib boom mount.
16 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.
17 Support and secure the platform mount.
18 Remove the pin retaining fastener from the
lower jib boom pivot pin at the platform mount.
19 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.
Part No. 65162
20 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.
21 Tag and disconnect the wires from the jib boom
lift cylinder solenoid valve.
22 Attach a lifting strap of suitable capacity from an
overhead crane to the jib boom lift cylinder.
Support the cylinder. Do not apply any lifting
pressure.
23 Attach a lifting strap of suitable capacity from an
overhead crane to the lower jib boom. Support
the boom. Do not apply any lifting pressure.
24 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin.
25 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 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.
TMZ-50/30
Section 4 • Repair Procedures
JIB BOOM COMPONENTS
4 - 9