OPERATING CONTROLS AND PROCEDURES GRT8100 OPERATOR MANUAL
3-66 Published 3-25-2020, Control # 595-10
• Remove all cribbing or other non-standard accessories
from crane.
• Avoid holes, rocks, extremely soft surfaces, and any
other obstacles that might subject crane to undue
stresses and possible overturn.
• Conduct all travel with assistance of a ground person to
warn operator of any changing conditions of terrain
being traversed.
Slope Limitations:
• On a side-to-side slope, do not exceed 15% (8.5°) and
1.6 km/h (1 mph).
• When traversing a fore-to-aft slope that is less than or
equal to 15% (8.5°), follow the normal crane travel
procedures outlined in this manual.
• When traversing a fore-to-aft slope that is greater than
15% (8.5°) and less than 25% (14°), shift transmission to
4-wheel drive and limit travel speed to 1.6 km/h (1 mph).
If crane must be parked, ensure the transmission is in
4-wheel drive and the wheels are chocked.
• When traversing a fore-to-aft slope that is equal to or
greater than 25% (14°), use an assist vehicle and shift
the crane’s transmission to 4-wheel drive. Do not park
crane on a slope equal to or greater than 25% (14°).
• Never exceed a fore-to-aft slope of 30% (16°).
• For slope limitations when traveling with an elevated
boom, an erected boom extension and inserts, or a
heavy counterweight installed, refer to the specific
traveling instructions in this section.
Owner/lessee must take appropriate measures to ensure all
persons operating or working with affected models are in
compliance with Grove recommendations. Crane operator
assumes responsibility for determining suitability of traveling
on a slope.
Traveling on a slope should only be attempted under
controlled conditions specified in these guidelines, and must
be conducted with the utmost diligence and care to ensure
safety of all personnel performing the operation and/or
working around the crane.
Should operator need to traverse slopes outside criteria
defined in the above guidelines contact Grove for further
guidance.
Traveling with Elevated Boom
Exercise caution whenever driving crane with boom
elevated. Travel with the boom elevated is permitted as long
as the following steps are followed.
• Limit travel to firm, level surfaces.
• Inspect route of travel before moving crane. Pay
particular attention to any changing conditions of terrain
being traversed. Avoid any overhead obstructions.
• Travel must be performed in a controlled fashion.
• Do not exceed a speed of 24 km/h (15 mph).
• Inflate tires to recommended pressure for travel
operations.
• When using towing attachments, boom must remain
horizontal.
• Fully retract all boom sections.
• Refer to Traveling with Boom Extension and/or Inserts
Erected, page 3-67 if boom extension is in the erected
position.
• Position boom over front of crane.
• Engage swing brake and turntable lock pin.
• Hook block may be reeved over the main boom nose.
Overhaul ball may be reeved over the main boom nose
or auxiliary boom nose. Block and ball may be
suspended below the boom nose. It is also acceptable to
secure the block or ball to carrier tie down point to
prevent swinging if necessary.
• Limit boom angle to a maximum of 20°.
• Do not support any load from the boom (see Pick and
Carry Load chart for limitations for this application).
• Remove all cribbing or other non-standard accessories
from crane.
• Avoid holes, rocks, extremely soft surfaces and any
other obstacles that might subject crane to undue
stresses and possible overturn.
• Ensure adequate clearance to any overhead
obstructions crane may be required to travel beneath.
WARNING
Overhead Objects Hazard
Contacting overhead objects while driving crane may
result in death, severe injury, and/or equipment damage.
Traveling with boom elevated should only be attempted
under controlled conditions specified in this section.
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