2-90
12. OPERATION
12.11 PRECAUTIONS FOR OPERATION
‡ When traveling on roads in rain or snow, or when traveling on
muddy or soft ground, consider the loaded condition of the
dump truck and be extremely careful not to let the tires slip or
spin and sink into the ground.
‡ If the engine should stop when the machine is traveling, stop the
machine immediately, then move the speed lever to the N
position, and start the engine again.
‡ If the central warning lamp and pilot lamp for any EMERGENCY
item on the machine monitor should flash and the buzzer sounds
during operation, stop the machine immediately and invest the
cause.
For details, see “16. TROUBLESHOOTING”.
‡ When loading, be careful to load the dump body uniformly, and
be particularly careful to avoid loading too much at the front.
‡ On slippery road surfaces, apply the retarder control lever slowly
and shift the transmission down to prevent the rear wheels from
locking.
‡ When traveling through pools of water, water may get inside the
front brakes and cause a big drop in the braking force, so drive
carefully in such areas. If water should get into the brakes, apply
the brakes several times while traveling to produce friction heat
between the pad and disc to remove the water.
NOTICE
If letter “E-” and any of action code “01” to “07” are displayed
in turn at the upper right of the liquid crystal display on the monitor
panel, stop the machine once. Take corrective action as follows
after checking the action code.
Action code
02 Park the machine on safe place and contact Komatsu’s service
department.
04 Carry out safety stop. Stop the engine and contact Komatsu’s
service department.
01 Carry out checks and maintenance according to the Operation
and Maintenance Manual.
03 Operate the machine keeping the engine at low revolution and
low travel speed.
05 Stop the machine. Run the engine at a mid-range speed under
no load.
06 Restart the engine. Idle the engine for a while.
07 Do not raise the body.
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