Manitowoc Grove RT765E-2 Operator's Manual page 89

RT765E-2 OPERATOR MANUAL
Crane Functions
Setting the Outriggers
1. Engage the Parking Brake.
NOTE: The Parking Brake must be engaged to enable
outrigger functions.
2. Position the outrigger floats directly out from each
outrigger to where the outriggers will be properly
extended.
CAUTION
Possible Equipment Damage!
Always depress 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 the individual solenoid valves,
preventing them from opening.
WARNING
Electrocution Hazard!
To avoid death or serious injury, keep all parts of this
machine, the rigging, and materials being lifted at least
6 m (2 0 ft) a way from ele ctrical po wer lin es and
equipment.
3. If extending the outrigger to the mid-extend or fully
extended position, depress the desired Extension
Switch on the Outrigger Selector Panel and hold the
Outrigger Extension/Retraction Switch to EXTEND. The
appropriate outrigger beam begins to extend. Refer to
Engaging the Mid-Extend Lock Pin, page 3-36 if the
crane is to be operated with any outrigger at the mid-
extend position.
WARNING
Tipping Hazard!
All four outrigger beams must be deployed to one of three
positions before beginning operation, which include fully
retracted, mid-extend, or fully extended; do not operate
the crane with the outriggers in any other position.
NOTE: More than one outrigger beam can be extended at
a time. However, to ensure that each outrigger is
fully extended, repeat step 3 for each outrigger
after a multi-outrigger extension.
4. After deploying the four outrigger beams to one of the
three proper positions (fully retracted, mid-extend, fully
Grove
OPERATING CONTROLS AND PROCEDURES
extended), depress the desired Stabilizer Switch on the
Outrigger Selector Panel and hold the Outrigger
Extension/Retraction
appropriate jack cylinder begins to move.
Extend each jack cylinder, positioning the float as
necessary, until the locking levers of the float engage the
jack cylinder barrel.
NOTE:
5. Extend the front jack cylinders approximately 3 to 4 in (8
to 10 cm).
6. Extend the rear jack cylinders approximately 3 to 4 in (8
to 10 cm).
NOTE:
7. Repeat step 4 until all wheels are clear of the ground
and the crane is level as indicated by the bubble level
indicator located on the right side of the cab.
NOTE:
The mid-extend outrigger beam lock pin must be engaged
before operating on any beam from the mid-extend
position.
For cranes not equipped with an Outrigger Monitoring
System, the operator must select the proper load chart
and RCL program for the outrigger position selected.
NOTE:
Outrigger Monitoring System (OMS) (Optional—
Standard in North America)
The Outrigger Monitoring System (OMS) aids the operator in
accurately programming the Rated Capacity Limiter (RCL)
by automatically identifying the horizontal position of each
outrigger beam. The OMS uses four sensors, one per
outrigger beam, to indicate when an outrigger beam is
positioned to one of three pre-defined locations, including
fully retracted, mid-extend, and fully extended.
Set up of the outriggers is the same for cranes equipped with
OMS; refer to Setting the Outriggers, page 3-35.
Published 9-04-2014, Control # 364-10
Switch
More than one jack cylinder can be extended at a
time.
If crane is equipped with tilting cab, ensure cab is in
the lowered position before leveling machine.
If it is suspected that the bubble level indicator is
out of adjustment, verify and adjust the bubble level
u s i n g t h e p r o c e d u r e s u n d e r B u b b l e L e v e l
Adjustment, page 3-34.
WARNING
Tipping Hazard!
For cranes equipped with an Outrigger Monitoring
System, outrigger positions are automatically
monitored through the RCL. Refer to Outrigger
Monitoring System (OMS) (Optional—Standard in
North America), page 3-35.
to EXTEND. The
3
3-35