Ground Controls; Auxiliary Platform Lowering; Controller Adjustments - Terex GS90D-4695 Service And Repair Manual

Service and Repair Manual

Ground Controls

5-1

Auxiliary Platform Lowering

In the event of an engine failure, activating the
backup manual lowering and manual lowering
enable switches will lower the platform when the
red Emergency Stop buttons are pulled out to the
on position at both the ground and platform
controls. The auxiliary down switches/buttons are
located at the ground control panel. There is no
adjustment required.
One 12V DC battery is used to start the engine,
power the auxiliary pump and the ECM. The
battery is located behind the ground control door
assembly.
58
5-2

Controller Adjustments

All machine function speeds are determined by the
percentage of total ECM voltage output. The
speeds of the following machine functions may be
adjusted to compensate for wear in the hydraulic
pump and drive motors.
For further information or assistance, consult
Genie Product Support.
Note: Select a test area that is firm, level and free
of obstructions.
GS -3390 • GS -4390 • GS
™ ™
• Stowed drive speed
• High torque drive speed
• Raised drive speed
• Platform lift speed
• Platform lower speed
• Steer speed
• Platform settling speed
Tip-over hazard. Do not adjust
the lift and/or drive speed higher
than specified in this procedure.
Setting drive speed greater than
specifications could cause the
machine to tip over resulting in
death or serious injury.
Tip-over hazard. This procedure
must only be performed by a
trained service professional.
Attempting this procedure
without the necessary skills
could result in death or serious
injury.
-5390
™
December 2023
Part No. 1325652GT