Grove Published 04-04-2017, Control # 446-09 3-27
RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
The buzzer will sound upon turning the Ignition
Switch to START and turn off after proper hydraulic
oil pressure is reached.
3. The Wait-to-Start lamp is illuminated during the preheat
time that takes place when the Ignition switch is in the
ON position during cold weather starting. To minimize
cranking time during cold weather starting, the engine
should not be cranked until the Wait-to-Start lamp turns
off.
4. Turn the Ignition switch to START and release
immediately when the engine starts. Do not push or hold
the throttle down. The ECM will automatically provide
the proper amount of fuel to start the engine.
5. Immediately check the engine instruments and warning
lights for proper indication after starting.
6. Allow the engine to warm up at least five minutes before
applying a load. Do not race the engine for a faster warm
up.
Detailed cold weather starting and operating procedures are
covered in the engine manual.
Idling the Engine
Idling the engine unnecessarily for long periods of time
wastes fuel and fouls injector nozzles. Unburned fuel causes
carbon formation, oil dilution, formation of lacquer or gummy
deposits on the valves, pistons, and rings, and rapid
accumulation of sludge in the engine.
NOTE: When prolonged idling is necessary, maintain at
least 850 rpm.
Racing the Engine
NEVER race the engine during the warm-up period. NEVER
operate the engine beyond governed speed (as might occur
in downhill operation or downshifting). Engine bearings,
pistons, and valves may be damaged if these precautions
are not taken.
Shutdown Procedure
1. Allow the engine to operate at idle for about five minutes
to avoid high internal heat rise and allow for heat
dissipation.
2. Turn the Ignition switch to OFF.
Transporting the Crane
Crane Travel Operation
Traveling — General
RT machines are subject to the same road regulations as
any truck, regarding gross weight, width, and length
limitations.
Although RT machines are specifically designed for rough
terrain, the operator should be extremely cautious and aware
of the terrain in which he is operating.
CAUTION
Engine Damage Hazard!
If any warning light stays on or indicator(s) do not display
proper readings, shut down the engine and correct the
malfunction before resuming operation.
CAUTION
Machine Damage Hazard!
Dead end lug not to be used as tie down point for boom
during transportation. Failure to comply may result in
machine damage. When the boom is secured for
transport, boom shall not be constrained. All securement
must allow for reasonable freedom of movement.
WARNING
Inadvertent Operation Hazard!
Before traveling, ensure the crane function switch is in the
off position. This will prevent inadvertent operation of
craning functions due to bumping of the controllers while
traveling.
WARNING
Tipping Hazard!
Avoid holes, rocks, extremely soft surfaces, and any other
obstacles which might subject the crane to undue
stresses or possible overturn.
Do not drive the crane with the boom off center because
automatic oscillation lockout will occur, making the crane
subject to tipping on uneven surfaces. Center the boom
over the front, turn the Swing Brake Switch to ON and
engage the Turntable Lock Pin (if equipped).
Fully retract the boom and ensure the swingaway jib is
properly stowed and secured.
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