7.
After
completing the warm-up operation, check that all
gauges and monitors work properly.
If any problem is found, perform the maintenance or repair.
• Caution lamp (5): Is it not lit?
• Engine preheating pilot lamp (6): Is it not lit?
• Engine coolant temperature gauge (7): Is the indicator
in green range?
• Hydraulic oil temperature gauge (8): Is the indicator in
green range
• Fuel gauge (9): Is the indicator in green range?
8.
Check for abnormal exhaust gas color, noise, or vibration.
If any problem is found, contact your Komatsu distributor.
REMARK
If the power train oil temperature is not sufficiently high, it takes longer to reach the maximum speed.
METHOD FOR STOPPING ENGINE
WARNING
Keep away from the exhaust pipe immediately after stopping the engine.
NOTICE
If
the engine is stopped before it is cooled down, the serv-
ice lives of component parts of the engine may be consid-
erably reduced. Do not stop the engine abruptly except in
an emergency.
Do not stop the engine abruptly except the case in an
emergency. If the engine is overheated, do not try to stop it
abruptly but run it at medium speed to allow it to cool
down gradually, and then stop it.
If the engine is stopped during the aftertreatment devices
regeneration, the components may be damaged.
Stop the aftertreatment devices regeneration, and run the
engine at low idle for approximately 5 minutes before stop-
ping the engine. Then stop the engine.
1.
Lower the work equipment to the ground.
2.
Turn fuel control dial (1) to Low idle (MIN) position.
3.
Run the engine at low idle for approximately 5 minutes to
cool down gradually
.
OPERATION MACHINE OPERATIONS AND CONTROLS
3-169
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