Check The Free-Wheel Configuration - Genie Z80/60 Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST D PROCEDURES
D-2
Check the Free-wheel
Configuration
Proper use of the free-wheel configuration is
essential to safe machine operation. The
free-wheel configuration is used primarily for
towing. A machine configured to free-wheel without
operator knowledge may cause death or serious
injury and property damage.
Collision hazard. Select a work
site that is firm and level.
Component damage hazard. If the
machine must be towed, do not
exceed 2 mph / 3.2 km/h.
1 Chock the steer wheels to prevent the machine
from rolling.
2 Center a lifting jack of ample capacity
(20,000 lbs / 10,000 kg) under the drive chassis
between the wheels at the non-steer end of the
machine.
3 Lift the wheels off the ground and place blocks
under the drive chassis for support.
4 Disengage the drive hubs by turning over the
drive hub disconnect caps on each
non-steer wheel hub.
3 - 52
disengaged position
engaged position
Z-80/60
5 Manually rotate each non-steer wheel.
Result: Each non-steer wheel should rotate with
minimum effort.
6 Re-engage the drive hubs by turning over
the hub disconnect caps. Rotate each wheel to
check for engagement. Lift the machine and
remove the blocks.
Collision hazard. Failure to
re-engage the drive hubs could
result in death or serious injury
and property damage.
4WD models:
7 Chock the non-steering wheels to prevent the
machine from rolling.
8 Center a lifting jack with a minimum capacity of
25,000 lbs / 12000 kg under the drive chassis
between the steer wheels.
9 Lift the wheels off the ground and then place
blocks under the drive chassis for support.
10 Disengage the drive hubs by turning over the
drive hub disconnect caps on each steer wheel
hub.
June 2012
REV E
disengaged position
engaged position
Part No. 88619