10.
Operate
the machine under light load until the engine cool-
ant temperature gauge and hydraulic oil temperature
gauge on machine monitor (3) indicate green range (A) to
(C).
(A) to (B): Red range
(A) to (C): Green range
(C) to (D): White range
NOTICE
If the hydraulic oil temperature is low, the machine
may deviate a little at moving off or stopping. If it is
necessary to operate the machine when the hydraulic
oil temperature gauge is at white range (C) to (D), be
extremely careful.
11.
Check for abnormal exhaust gas color, noise, or vibration.
If
any abnormality is found, contact your Komatsu distribu-
tor.
After warm-up operation, run he engine at medium speed and slowly drive forward and reverse so that the
whole equipment becomes uniform temperature.
METHOD FOR STOPPING ENGINE
WARNING
Keep away from the exhaust pipe immediately after stopping the engine.
NOTICE
• If
the engine is abruptly stopped before it has cooled
down, service life of the engine parts may be reduced.
Do not stop the engine abruptly except in an emergen-
cy.
If the engine overheats, do not stop it suddenly. Run it
at low speed to allow it to cool down gradually, then
stop it.
• If the engine is stopped during the aftertreatment devi-
ces regeneration, the components may be damaged.
Stop the regeneration first, then stop the engine as fol-
lows.
• When the engine is stopped during or just after the af-
tertreatment devices regeneration is finished, the parts
around the aftertreatment devices may become high
temperature. Take care.
1.
Lower the work equipment to the ground.
OPERATION MACHINE OPERATIONS AND CONTROLS
3-159
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