Inspect For Turntable Bearing Wear - Genie ZX-135/70 Service Manual

Service Manual
Checklist C Procedures
7 Press and hold the function enable/high
speed button. Note the engine rpm on the
display.
Result: High idle should be 2350 rpm.
If the high idle is correct, disregard adjustment
step 8.
8 Loosen the low idle lock nut. Turn the low idle
adjustment screw clockwise to increase the
rpm or counterclockwise to decrease the rpm.
Tighten the low idle lock nut and confirm the
rpm.
Note: Be sure the solenoid fully retracts when
activating high idle.
9 Check for excessive movement in the linkage
bar pins.
Result: If there is excessive wear in the
linkage, the linkage bar should be replaced.
10 Remove the engine pivot plate retaining
fastener from the engine pivot plate anchor
hole at the pivot end of the engine pivot plate.
11 Swing the engine pivot plate in towards the
machine.
12 Install the bolt that was just removed into the
original hole to secure the engine pivot plate.
Crushing hazard. Failure to
install the bolt into the engine
pivot plate to secure it from
moving could result in death or
serious injury.
62
C-8
Inspect for Turntable Bearing
Wear
Genie requires that this procedure be performed
every 500 hours or six months, whichever comes
first
Periodic inspection of turntable bearing wear is
essential to safe machine operation, good machine
performance and service life. Continued use of a
worn turntable bearing could create an unsafe
operating condition, resulting in death or serious
injury and component damage.
Note: Perform this procedure with the boom fully
retracted and in the stowed position and with the
machine on a firm, level surface.
1 Grease the turntable bearing. Refer to
maintenance procedure, Grease the
Turntable Bearing and Rotate Gear.
2 Torque the turntable bearing bolts to
specification. Refer to maintenance
procedure, Check the Turntable Rotation
Bearing Bolts.
3 Start the machine from the ground controls
and fully raise, but do not extend, the primary
boom and jib. The secondary riser should
remain in its stowed position.
ZX-135/70
August 2014
Part No. 218700