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Genie Z-30/20
Part No. 43063
Service Manual - Third Edition
Section 7 - Repair Procedures
4 Locate the 3 cables that enter the platform
control box. Number each cable and it's entry
location at the platform control box.
5 Open the platform control box. Label and
disconnect each wire of the 3 cables in the
platform control box.
Electrocution hazard. Contact with
electrically charged circuits may
result in death or serious injury.
Remove all rings, watches and
other jewelry.
6 Pull all the cables out of the platform control
box.
7 Tag, disconnect and plug the hydraulic hoses
from the platform leveling slave 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.
8 Remove all the hose and cable clamps from the
platform pivot weldment, cable track and the
primary boom.
9 Pull all the cables and hoses through the cable
track, then through the mid-pivot.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
10 Support the platform pivot weldment and
platform rotator with a lifting strap from an
overhead crane.
11 Remove the retaining fasteners from the rod-
end pivot pin of the platform level cylinder. Use
a soft metal drift to remove the pin.
12 Remove the retaining fasteners from the pivot
pin of the platform pivot weldment. Use a soft
metal drift to remove the pin.
Crushing hazard. The platform
pivot weldment and platform
rotator will fall unless they are
properly supported.
13 Remove the platform pivot weldment from the
machine.
14 Support the cable track with an overhead
crane.
15 Remove the cable track mounting fasteners,
then remove the cable track from the
boom and lay it off to the side.
Component damage hazard.
The boom cable track
can be damaged if it is twisted.
16 Remove the retaining fastener from the master
cylinder barrel-end pivot pin.
17 Place a rod through the barrel-end pivot pin
and twist to remove the pin.
18 Tag, disconnect and plug the primary boom
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.
PRIMARY BOOM COMPONENTS
