Service and Repair Manual
October 2018
Jib Boom Components
56
Z®-135
/70
Part No. 1268557GT
16 Attach a lifting strap from an overhead crane to
the barrel end of the jib boom extension
cylinder.
17 Remove the pin retaining fasteners from the jib
boom extension cylinder barrel-end pivot pin.
Use a soft metal drift to remove the pin.
18 Carefully slide the jib boom extension cylinder
out of the jib boom and place it on a structure
capable of supporting it.
Crushing hazard. The jib boom
extension cylinder could become
unbalanced and fall when
removed from the jib boom if not
properly supported.
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
3-6
Jib Boom Bellcrank Angle Sensor
The jib boom bellcrank angle sensor is monitored
by the control system to keep the jib boom bellcrank
vertical and to help maintain a level platform
through boom range of motion. If a jib boom
bellcrank angle sensor is replaced, it must be
calibrated prior to machine operation. The jib boom
bellcrank angle sensor is mounted to the bellcrank
pivot pin on the engine side of the machine.
How to Replace the Jib Boom
Bellcrank Angle Sensor
Note: Perform this procedure with the machine on a
firm, level surface with the boom in the stowed
position.
1
Locate the jib boom bellcrank angle sensor
where the jib boom bellcrank connects to the
primary boom.
2
Disconnect the electrical connector from the
sensor. Remove any tie wraps securing the
wiring.
3
Remove the retaining fasteners from the angle
sensor guard. Remove the guard from the
machine.
Summary of Contents for Genie Z-135/70
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Page 233: ...October 2018 Service and Repair Manual 219 Generator Wiring Schematic ...
Page 236: ...Service and Repair Manual October 2018 222 Hydraulic Generator Welder Option ...
Page 242: ...Service and Repair Manual October 2018 228 Hydraulic Schematic from serial number 535 ...
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