Grove Published 3-25-2020, Control # 595-10 3-65
GRT8100 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
To avoid severe damage to the drive train while using the
crane to tow or pull another vehicle, follow these
recommendations:
• Ensure boom is in a horizontal position and not elevated
above 0°.
• Ensure outrigger beams and jacks are fully retracted
with the pads properly stowed.
• Tow or pull on open ground when possible.
• Connect to the optional pintle hook (if equipped) or
attach cables/straps to the crane at a point no higher
than the pintle hook height.
• Use four-wheel drive when greater traction is necessary.
(Refer to Four-Wheel Drive Operation, page 3-68 for
operating instructions.)
• Should the crane become mired down, use a tow truck
or tractor to free the vehicle. Severe damage to the
drivetrain may occur if the operator attempts to free the
crane unassisted.
• Conduct all travel with the assistance of a ground person
to warn the operator of any changing conditions in the
terrain being traversed.
Traveling — Being Towed/Pulled
Grove Crane recommends connecting to a pintle hook (if
equipped) or evenly attaching to the tie-down lugs when
being towed by another vehicle.
• Ensure boom is in a horizontal position and not elevated
above 0°.
• Ensure outrigger beams and jacks are fully retracted
with pads properly stowed.
To avoid severe damage to drive train while crane engine is
disabled:
• Disconnect drivelines.
• Disengage parking brake by manually turning parking
brake adjustment until axle turns free.
.
• Secure steering to prevent turning while towing.
• Conduct all travel with assistance of a ground person to
warn operator of any changing conditions in terrain
being traversed.
Traveling on Slopes
Crane operators need to exercise caution whenever
operating crane on uneven surfaces. Travel on slopes is
permitted as long as the following conditions are met.
• Do not exceed a 15% (8.5°) slope side-to-side or
fore-and-aft.
• Travel must be on an improved surface or hard-packed
dry earth having a minimum 0.5 coefficient of adhesion.
• Limit travel to a forward direction only.
• Do not exceed a speed of 1.6 km/h (1 mph).
• Fully retract all boom sections.
• Stow or remove boom extension from crane.
• Lower boom to horizontal and position over front of
crane.
• Engage swing brake and turntable lock pin.
• Either the hook block may be reeved over the main
boom nose or the overhaul ball may be reeved over the
main boom nose or auxiliary boom nose; the other must
be removed. If hook block or overhaul ball remains
reeved on the boom, it must be secured at the tie down
on the carrier to prevent swinging.
• Inflate tires to recommended pressure for pick and carry
operations.
• Ensure hydraulic tank is filled to specified level. Ensure
fuel tank is over half full.
• Ensure engine and transmission fluids are filled to the
specified levels.
• Ensure axle differentials and planetary hub fluids are
filled to the specified levels.
• Do not support any loads by the boom (i.e., no pick and
carry loads) while traversing a slope.
CAUTION
Machine Damage Hazard!
It is recommended to attach cables/straps to the optional
pintle hook (if equipped) or evenly attach to the tie-down
lugs if being towed by another vehicle.
Should the crane become mired down, use a tow truck or
tractor to free the vehicle. Severe damage to the
drivetrain may occur if the operator attempts to free the
crane unassisted.
DANGER
Run-away Crane Hazard!
Disabling parking brake may result in crane rolling away
freely without the ability of the operator to stop the crane.
Ensure wheel chocks are properly placed when parking
crane with the parking brake disabled.
Death or serious injury and damage to machinery could
result from moving machinery.
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