7 - 32
Genie Z-30/20
Part No. 43063
Service Manual - Third Edition
Section 7 - Repair Procedures
8-1
Rotation Hydraulic Motor
The rotation hydraulic motor is the only
serviceable component of the turntable rotation
assembly. The worm gear may not be removed
from the housing. In order to remove the housing,
the turntable has to be removed.
How to Remove the Turntable
Rotation Motor
Do not allow the turntable to
rotate until the hydraulic motor is
installed.
1 Tag, disconnect and plug the hydraulic hoses
from the turntable rotation motor. Cap the
fittings on the motor.
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.
2 Remove the turntable rotation motor mounting
bolts, then remove the motor.
Turntable Rotation Components
8-2
Rotation Bearing and Worm Drive
How to Remove the Rotation
Bearing or Worm Drive
The turntable and all components above it must be
removed prior to removing the rotation bearing or
worm drive.
This procedure requires specific
repair skills, lifting equipment and
a suitable workshop. Attempting
this procedure without these skills
and tools may result in death or
serious injury and significant
component damage. Dealer
service is required.
Be sure that the drive chassis
is level.
1 Remove the platform. See 2-1, How to Remove
the Platform.
2 Remove the primary boom. See 3-2, How to
Remove the Primary Boom.
3 Remove the turntable rotation motor. See 8-1,
How to Remove the Turntable Rotation Motor.
4 Attach a lifting strap from an overhead crane to
to the rod end of the primary boom lift cylinder.
Then raise the primary lift cylinder with the
crane, to a vertical position.
5 Remove the pin retainer from the pivot pin at
the barrel end of the primary boom lift cylinder.
