Maintenance Manual November 2021
Programmed Maintenance Procedures
80 Scissor Lifts Part No. 1305686GT
P2-3
Check the Free-wheel
Configuration - GS-84, GS-90
Genie requires that this procedure be performed
every 2000 hours.
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.
Non-Steer wheels:
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 non-steer tires.
3 Lift the wheels off the ground and then place
jack stands 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.
1 brake disengaged position
2 brake engaged position
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. Raise the machine,
remove the jack stands and lower the
machine.
Collision hazard. Failure to re
-
engage the drive hubs could
result in death or ser
ious injury
Steer wheels:
7 Chock the non-steer wheels to prevent the
machine from rolling.
8 Center a lifting jack of ample capacity
(20,000 lbs / 10,000 kg) under the drive
chassis between the steer tires.