Secondary Boom Components; Secondary Boom - Genie TMZ-50/30 Service Manual

June 2005
800-610-4101
ActionRental.com
REV B
5-1

Secondary Boom

How to
Remove the Secondary Boom
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 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 primary boom. See 4-2, How to
Remove the Primary Boom.
2 Tag, disconnect and plug the hydraulic hoses
on the primary 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.
Part No. 65162

Secondary Boom Components

TMZ-50/30
Section 4 • Repair Procedures
3 Attach a lifting strap of suitable capacity from an
overhead crane to the primary boom lift
cylinder. Raise the cylinder to a vertical
position.
4 Remove the pin retaining fasteners from the
primary boom lift cylinder barrel end pivot pin.
5 Using a soft metal drift, remove the primary
boom lift cylinder barrel end pivot pin. Remove
the primary boom lift cylinder from the machine.
Crushing hazard. The cylinder will
fall if not properly supported when
the pivot pin is removed.
6 Tag, disconnect and plug the hydraulic hoses
on the platform level master 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.
7 Attach a lifting strap of suitable capacity from an
overhead crane to the platform level master
cylinder.
8 Remove the pin retaining fasteners from the
platform level master cylinder barrel end pivot
pin.
9 Using a soft metal drift, remove the platform
level master cylinder barrel end pivot pin.
Remove the cylinder from the machine.
Crushing hazard. The cylinder will
fall if not properly supported when
the pivot pin is removed.
4 - 23