Secondary Boom - Genie Z-30/20N Service Manual

April 2005
REV B
5-1

Secondary Boom

How to Disassemble the
Secondary Boom
Bodily injury hazard. The
procedures in this section require
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 required.
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.
1 Remove the counterweight cover.
2 Place a suitable lifting device under the platform
for support.
3 Disconnect the battery packs from the machine.
4 Remove the cable cover from the side of the jib
boom.
5 Remove the wire loom from the cables at the
platform control box.
Part No. 106373
SECONDARY BOOM COMPONENTS
6 Locate the cables from the primary boom cable
track to the platform control box. Number each
cable and its entry location at the platform
control box.
7 Open the platform control box.
8 Tag and disconnect each wire from the cables
in the platform control box.
9 Pull the cables out of the platform control box.
10 Pull all of the electrical cables out of the plastic
cable track. Do not pull out the hydraulic hoses.
11 Remove the hose clamps from the bottom side
of the primary boom.
12 Before serial number 5945: Tag, disconnect
and plug the platform rotator hydraulic hoses at
the union located on the bottom side of the
primary boom. Cap the fittings on the union.
After serial number 5944: Tag, disconnect and
plug the hydraulic hoses from the "P" and "T"
ports at the jib boom/rotate manifold. Cap the
fittings on the manifold.
Genie Z-30/20N
Section 4 • Repair Procedures
Electrocution hazard. Contact with
electrically charged circuits could
result in death or serious injury.
Remove all rings, watches and
other jewelry.
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.
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