Grove Published 3-25-2020, Control # 595-10 3-67
GRT8100 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
• Ensure all personnel involved in the operation and those
working around crane are aware of any hazards that
may be encountered and are trained how to avoid them.
Traveling with Boom Extension and/or
Inserts Erected
33 ft (10.1 m)/56 ft (17.1 m) Extension
• Main Boom shall be fully retracted.
• 33 ft/56ft/76ft boom extension shall be erected at
minimum (0 deg) offset.
NOTE: While traveling with 33ft extension, stinger section
must remain stowed on main boom base section.
• Jobsite travel shall be only on firm, level surface.
• Maximum Travel speed: 2.5 mph.
• For 33ft/56ft boom extension: Main boom angle shall be
between 0 degree and 30 degrees.
• For 76ft boom extension: Main boom angle shall be
between 0 degree and 20 degrees.
• Main counterweight (Standard 22,000 lb or Heavy
27,000 lb) shall be installed.
• Boom shall be directly over Front. Swing lock shall be
engaged.
• Hook block must be removed from main boom nose.
• Overhaul ball may be reeved over boom extension,
hanging 3 ft below sheave.
33 ft (10.1 m)/56 ft (17.1 m) Extension Plus 20 ft (6 m)
Insert
• Position the 33 ft (10.1 m) or 56 ft (17.1 m) boom
extension plus 20 ft (6 m) insert at minimum offset. If
traveling with just the 33 ft (10.1 m) extension and insert,
stow the stinger section on the boom base section, not
on the extension base section.
• Travel only on a firm, level surface.
• Fully retract the main boom.
• Limit main boom angle to a minimum of 0° and a
maximum of 20°.
• Do not exceed a speed of 2.5 mph (4 km/h).
• Ensure main counterweight is installed.
• Position the boom over the front of the crane.
• Engage the swing brake and turntable lock pin.
• Remove hook block from main boom nose.
• Overhaul ball may be reeved over boom extension,
hanging 3 ft (0.9 m) below sheave.
Extended Travel
Depending upon the tire manufacturer, the higher inflation
pressures normally specified for lifting on rubber are not
recommended for site to site transfer over extended
distances. The higher static/creep 8 km/h (5 mph) inflation
pressures may remain in the tire while operating the crane
on site within a distance of less than 6.4 km (4 mi).
Traveling — Forward
1. With Transmission Shift Lever in neutral (N) position,
start engine and allow it to adequately warm up.
2. Press Service Brake Foot Pedal.
3. Disengage parking brake.
4. Position Drive Axle Switch to two-wheel high or
four-wheel low.
5. Lift Transmission Shift Lever up out of detent and push
lever to the forward (F) position. Rotate the
Transmission Shift Lever Knob to the first (1) gear
position. Gear selection “F1” appears in the CCS
CAUTION
Tire Damage Hazard!
For extended travel, check cold tire pressure before start.
(Refer to tire inflation chart in Load Chart Book.) After
every one hour of travel time, regardless of ambient
temperature, stop and allow tires to cool for at least 30
minutes. At destination, tires must be allowed to cool to
ambient temperature before crane lifting on rubber.
CAUTION
Machine Damage Hazard!
Engage turntable lock pin for extended travel. Failure to
engage lock pin may allow superstructure to swing
uncontrolled, damaging machine and/or property.
WARNING
Run-away Crane Hazard!
Releasing parking brake while low service brake pressure
indicator is illuminated and buzzer is sounding, indicating
service brakes are inoperable, may result in crane rolling
away freely without ability of operator to stop crane.
Never release parking brake while low service brake
pressure indicator is illuminated and buzzer is sounding.
CAUTION
Use four-wheel drive only when more traction is required.
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