Boom Extension - Genie TMZ-50/30 Service Manual

June 2005
800-610-4101
ActionRental.com
REV B
4-3

Boom Extension

How to
Remove the Boom Extension
This procedure in this section
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 required.
Follow the disassembly steps to the point required
to complete the repair. Then re-assemble the
secondary boom by following the disassembly
steps in reverse order.
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 jib. See 3-1, How to Remove the
Jib Boom.
2 Tag, disconnect and plug the platform level
slave cylinder hydraulic hoses. 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.
Part No. 65162
PRIMARY BOOM COMPONENTS
3 Tag, disconnect and plug the extension cylinder
hydraulic hoses. 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.
The connections to the extension
cylinder are at the mid pivot end of
the primary boom.
4 Remove the primary boom upper wear pad
retaining fasteners. Remove the upper wear
pads from the primary boom.
5 Remove the primary boom side wear pad
retaining fasteners. Remove the side wear pads
and shims from the primary boom.
For ease of assembly, note the
quantity and location of shims
during disassembly.
6 Remove the primary boom lower wear pad
retaining fasteners. Remove the lower wear
pads from the primary boom.
7 Remove the pin retaining fasteners from the
extension cylinder barrel end pivot pin.
8 Using a soft metal drift, remove the extension
cylinder barrel end pivot pin.
9 Pull the extension boom approximately half way
out of the primary boom.
10 Attach a lifting strap of suitable capacity from an
overhead crane to the extension boom. Support
the boom. Do not apply any lifting pressure.
11 Remove the boom extension from the primary
boom. Set it on a suitable structure capable of
supporting it.
Crushing hazard. The boom
extension could become
unbalanced and fall if not properly
supported when removed from the
machine.
TMZ-50/30
Section 4 • Repair Procedures
4 - 17