Genie TZ-34/20 Service Manual page 59

January 2016
16 Tag, disconnect and plug the hydraulic hoses to
the primary boom extension cylinder at the mid
pivot end of the primary boom. Cap the fi ttings.
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.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
17 Attach a lifting strap of suitable capacity from
an overhead crane to the primary boom. Raise
the boom to a horizontal position.
18 Remove the pin retaining fasteners securing
the primary boom pivot pin to the mid-pivot.
19 Using a soft metal drift, remove the primary
boom pivot pin at the mid-pivot.
Crushing hazard. The primary
boom could become unbalanced
and fall if not properly supported
when the pin is removed.
20 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.
Part No. 825934
How to
Remove the Boom Extension
Note: Perform this procedure on a fi rm level
surface, boom in the stowed position.
Note: When removing a hose assembly or fi tting,
the O-ring on the fi tting and/or hose end must be
replaced and then torqued to specifi cation during
installation. Refer to Section 2, Hydraulic Hose and
Fitting Torque Specifi cations.
1 Remove the primary boom. See 2-2, How to
Remove the Boom.
2 Tag and disconnect the wiring at the power-to-
platform junction box.
3 Tag and disconnect the cables from the
platform control box.
4 Remove the platform controls and controls
mounting bracket from the boom extension.
Genie TZ-34/20
Section 4 • Repair Procedures
PRIMARY BOOM COMPONENTS
This procedure in this section
requires specifi c repair skills,
lifting equipment and a suitable
workshop. Attempting this
procedure without these skills
and tools could result in death
or serious injury and signifi cant
component damage. Dealer
service is required.
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