OPERATING CONTROLS AND PROCEDURES GRT8100 OPERATOR MANUAL
3-72 Published 3-25-2020, Control # 595-10
whether lifting on rubber or outriggers, it is essential the
crane is level to within 1% of grade. The bubble level
indicator provided on the crane is calibrated to be accurate
within 1% of grade.
To properly level the crane, the boom must be positioned
over front of the crane, fully lowered to horizontal and fully
retracted (for cranes fitted with a boom rest, boom shall be
stowed onto the rest). Raise and level crane following
instructions for Using Outriggers, page 3-72.
A working crane may settle during lifting operations.
Frequently check the crane for level. When rechecking the
crane for level, the boom must be positioned over the front of
the crane, fully lowered to horizontal and fully retracted (for
cranes fitted with a boom rest, the boom shall be stowed
onto the rest). If necessary, relevel the crane following
instructions for Using Outriggers, page 3-72.
Level Indicator Adjustment
The Level Indicator should be checked periodically; if it is
suspected that the Level Indicator is out of adjustment, verify
and adjust the level as follows:
1. Position crane on a firm, level surface.
2. Extend and set outriggers. Level crane, as indicated by
the level indicator, using the outriggers.
3. Place a miracle pointer level, carpenter level, or similar
type device on a machined surface such as the turntable
bearing or bearing mounting surfaces.
4. Using the outriggers, level crane as indicated on the
leveling device used in step 3.
5. Using level indicator mounting screws, adjust level
indicator to show level.
Crane Functions
Using Outriggers
Outriggers are operated from the front console in the cab or
using jog dial on the armrest.
NOTE: The crane also allows operations with outriggers
fully retracted. Reference the load chart for
capacities.
Setting Outriggers
1. Engage Parking Brake.
NOTE: To enable outrigger functions: crane must be in four
wheel drive, parking brake must be engaged,
swing brake must be engaged, and all crane
functions must be off.
2. Position outrigger pads directly out from each outrigger
to where outriggers will be properly extended.
3. If extending the outrigger to the mid-extend or fully
extended position, use the Outrigger Function Enable
Switch and the CCS menu with either the CCS display
buttons or the jog dial to select the outrigger. The
appropriate outrigger beam will extend. Refer to
DANGER
To prevent serious injury or death, keep clear of moving
outrigger beams/jacks.
DANGER
Death or serious injury could result from improper crane
setup on outriggers.
WARNING
Be sure the outriggers are properly extended and set, and
the crane is level for operation on outriggers.
All four outrigger beams must be equally extended to the
mid position vertical stripe or fully extended position
before beginning operation.
WARNING
When operating the crane on outriggers, the outriggers
should always be fully extended or locked in the
mid-extend position.
CAUTION
Possible Equipment Damage!
Always press one of the outrigger/selector switches
before positioning the outrigger extension/retraction
switch to extend or retract. Failure to do this may cause a
hydraulic lock against individual solenoid valves,
preventing them from opening.
DANGER
Electrocution Hazard!
To avoid death or serious injury, keep all parts of this
machine, the rigging, and materials being lifted at least 6
meters (20 feet) away from electrical power lines and
equipment.
To Next Page
Loading...
Need help?
General
