Grove Published 3-25-2020, Control # 595-10 3-73
GRT8100 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
Engaging the Mid Extend Lock Pin, page 3-73 if the
crane is to be operated with the outriggers at the
mid-extend position.
NOTE: More than one outrigger beam can be extended at
a time. To ensure each outrigger is fully extended,
repeat step 3 for each outrigger after a
multi-outrigger extension.
4. After deploying the four outrigger beams to fully
retracted, mid-extend, or fully extended positions,
navigate to Jack Operation on the CCS screen. Select
Jack Extend on the Outrigger Function Enable Switch.
Extend each outrigger jack, using either the CCS display
buttons or the jog dial, positioning the pad as necessary,
until the locking levers of the pad engage the jack
cylinder barrel.
NOTE: More than one jack can be extended at a time.
5. Extend front jacks approximately 8 to 10 cm (3 to 4 in).
6. Extend rear jacks approximately 8 to 10 cm (3 to 4 in).
NOTE: Ensure tilting cab is in the lowered position before
leveling machine.
7. Repeat step 4 until all wheels are clear of the ground
and crane is level as indicated by the level indicator
located on the right side of the cab.
NOTE: If it is suspected the level indicator is out of
adjustment, verify and adjust the level using the
procedures under Level Indicator Adjustment,
page 3-72.
Outrigger Monitoring System (OMS)
(Optional—Standard in North America and
European Union Countries)
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.
Outrigger setup is the same for cranes equipped with OMS;
refer to “The crane also allows operations with outriggers
fully retracted. Reference the load chart for capacities.” on
page 72.
If crane is setup on outriggers and “On Outriggers” is
selected when programming the RCL, then the OMS
indicates to the RCL the horizontal position of each of the
four outrigger beams. When outriggers are at the proper
position, the screen icon is transparent; if an outrigger is not
in the proper position it will be shown as red. The RCL does
not lock out the crane or select a different chart based on
outrigger position.
Engaging the Mid Extend Lock Pin
NOTE: It may be necessary to jog the outrigger
extension/retraction switch slightly to ensure
proper pin engagement.
1. With outriggers fully retracted, turn locking pin 90° from
its stowed position and allow pin to slip into the lug on
the jack beam. If pin will not slip into the lug, slowly
extend or retract the outrigger beam, allowing locking
pin to drop into the lug.
2. Slowly extend or retract outrigger beam, allowing locking
pin to drop into the hole in top of the outrigger beam,
engaging outrigger beam at the desired length.
Stowing the Outriggers
NOTE: To enable outrigger functions, crane must be in four
wheel drive, parking brake must be engaged, and
swing must be off.
1. Use screen buttons or jog dial with Outrigger Function
Enable Switch to select left or right rear outrigger on the
CCS screen. Retract until rear jacks have adequate
clearance.
2. Use screen buttons or jog dial with Outrigger Function
Enable Switch to select left or right front outrigger on the
CCS screen. Retract until front jacks have adequate
clearance.
DANGER
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.
DANGER
Tipping Hazard!
The mid-extend outrigger beam lock pin must be engaged
before operating on any beam from the mid-extend
position.
DANGER
Keep feet and hands clear of outrigger pads when
unlocking the pads from the jacks.
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