OPERATING CONTROLS AND PROCEDURES GRT8100 OPERATOR MANUAL
3-76 Published 3-25-2020, Control # 595-10
Lower Cable
Turn on Hoist Enable Switch. Push main hoist (right hand
armrest) or auxiliary hoist (left hand armrest) controller
forward, away from operator. Hold until hook or load is
lowered to desired height.
Raise Cable
Turn on Hoist Enable Switch. Pull main hoist (right hand
armrest) or auxiliary hoist (left hand armrest) controller
toward operator. Hold until hook or load is raised to desired
height.
Hoist Speed Range Selection
2. Hold hoist selector switch for 1.5 seconds.
3. Double-click hoist enable switch.
4. On a dual axis joystick, push and release the outside
(farthest from operator) of the respective Hoist Speed
Toggle Switch to enable high speed (maintained state).
Push the switch again to disable the high speed.
5. On a dual axis joystick, push and hold the inside (closest
to operator) of the respective Hoist Speed Toggle Switch
to temporarily enable high speed (momentary state) and
release the switch to disable the high speed.
Stowing and Parking
When parking crane, do the following:
1. Remove load from hook.
2. Remove or stow boom extensions if equipped.
3. Fully retract all boom sections.
4. Lower boom to normal travel position.
5. Engage swing brake and swing lock pin.
6. Retract all jack cylinders and outrigger beams.
7. Park crane on a stable surface.
8. Apply parking brakes and if necessary, chock wheels.
9. Ensure all operating controls are in neutral position.
10. Shut down engine following proper procedures specified
in this Operator Manual and applicable engine manual.
11. Remove keys.
12. Close and lock, if applicable, all windows, covers, and
doors.
13. Turn battery disconnect OFF if machine will be inactive
for over 24 hours Figure 3-28.
Unattended Crane
The configuration in which the crane should be left while
unattended shall be determined by a qualified, designated
individual familiar with the job site, configuration, conditions,
and limitations.
CAUTION
Do not change speeds while hoist is active. Always select
hoist speed before actuating the hoist up or down
function.
DANGER
Tipping Hazard!
Never park crane near holes, on rocky surfaces, or on soft
spots. This may cause crane to overturn, resulting in
injury or death to personnel.
CAUTION
Avoid Crane Damage!
Do not engage the parking brake while the vehicle is
moving. Damage to the crane can occur.
Disengage the parking brake before driving. Damage to
the crane can occur.
WARNING
Tipping Hazard!
Changing weather conditions including, but not limited to,
wind, ice accumulation, precipitation, flooding, lightning,
etc. should be considered when determining the location
and configuration of a crane when it is to be left
unattended.
Failure to comply with these instructions may cause death
or serious injury.
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