Genie TMZ-50/30 Service Manual page 70

Section 4 • Repair Procedures
800-610-4101
ActionRental.com
PRIMARY BOOM COMPONENTS
4 Tag, disconnect and plug the hoses from 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.
5 Tag, disconnect and plug the hoses from the
primary boom extension 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.
6 Attach a lifting strap of suitable capacity from an
overhead crane to the rod end of the primary lift
cylinder. Support the cylinder. Do not apply any
lifting pressure.
7 Remove the pin retaining fasteners from the
primary lift cylinder rod end pivot pin.
8 Using a soft metal drift, remove the primary lift
cylinder rod end pivot pin.
Crushing hazard. The cylinder will
fall if not properly supported when
the pivot pin is removed.
9 Lower the cylinder onto the secondary boom.
4 - 16
10 Remove the pin retaining fasteners from the
platform level master cylinder rod end pivot pin.
11 Using a soft metal drift, remove the platform
level master cylinder rod end pivot pin.
12 Attach a lifting strap of suitable capacity from an
overhead crane to the primary boom. Support
the boom. Do not apply any lifting pressure.
Component damage hazard. The
cable track can be damaged if not
protected when lifting the boom.
13 Remove the pin retaining fasteners securing the
primary boom pivot pin.
14 Using a soft metal drift, remove the primary
boom pivot pin.
Crushing hazard. The primary
boom could become unbalanced
and fall if not properly supported
when the pin is removed.
15 Release the latch at the turntable end of the
machine.
16 Remove the primary boom from the machine.
Crushing hazard. The primary
boom could become unbalanced
and fall if not properly supported
when removed from the machine.
TMZ-50/30
June 2005
REV B
Part No. 65162