Genie Z-34/22IC, Service Manual

Page: 87 / 185

Part No. 128267 Z-34/22 IC 4 - 15
July 2007 Section 4 • Repair Procedures
REV A
How to Remove the
Primary Boom
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting this
procedure without these skills and
tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
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.
Note: Perform this procedure with the boom in the
stowed position.
1 Remove the platform.
2 Remove the platform rotator. See 2-2,
How to
Remove the Platform Rotator.
3 Remove the jib boom. See 3-1,
How to Remove the Jib Boom.
4 Remove the jib boom bell crank. See 3-2,
How to Remove the Jib Boom Bell Crank.
5 Support the slave cylinder.
6 Tag and disconnect the hydraulic hoses to the
slave cylinder and connect them together using
a connector. Plug the slave cylinder hoses from
the cable track.
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.
7 Remove the external snap ring from the slave
cylinder barrel-end pivot pin.
8 Use a soft metal drift to remove the slave
cylinder barrel-end pin.
9 Remove the slave cylinder from the primary
boom.
10 Support the cable track with an overhead crane
or similar lifting device.
11 Remove the cable track mounting fasteners,
then remove the cable track from the
boom and lay it off to the side.
Component damage hazard.
The boom cable track can be
damaged if it is twisted.
12 Remove the turntable end cover.
13 Remove the pin retaining fasteners from the
master cylinder rod-end pivot pin. Use a soft
metal drift to remove the pin. Pull the cylinder
back and secure it from moving.
14 Remove the drive speed limit switch
mounted on the side of the boom at the pivot
end. Do not disconnect the wiring.
PRIMARY BOOM COMPONENTS