9.
After
the engine starts, wait for the engine oil pressure
caution lamp to go out. Do not perform the work equipment
operation or travel while the engine oil pressure caution
lamp is lit.
NOTICE
If the engine oil pressure caution lamp does not go out
even after 4 to 5 seconds have passed, stop the en-
gine immediately. Check the oil level, check for leak-
age of oil, and take the necessary action.
10.
Regardless of the ambient temperature, it is possible to
start the engine preheating manually
.
1)
Turn the key in starting switch (4) counterclockwise
from OFF position (A). The preheating pilot lamp lights
up and engine preheating starts.
REMARK
(Preheating continues while the key in starting switch
(4) is held counterclockwise.)
2)
For preheating time, use the table of the step 3 as a
guideline,
and complete the preheating within 45 sec-
onds.
The preheating pilot lamp lights up while the engine is
preheated.
3)
After the preheating pilot lamp (2) goes out, turn the
key in starting switch (4) to START position (C).
The engine will start.
4)
If the engine cannot be started with the above proce-
dure, wait for approximately 2 minutes, then start
again from the step 1).
METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE
WARNING
• If
there has been any emergency stop, abnormal actuation or trouble, turn the starting switch key to
OFF position.
• If the work equipment is operated without sufficient warming-up operation of the machine, response
of the work equipment to movement of the control lever will be slow, and the work equipment may
not respond as the operator desires, so always perform the warming-up operation. Particularly in a
cold weather, be sure the warm-up operation is completed.
METHOD FOR CHECKING STARTING CONDITION AND UNUSUAL NOISE OF
ENGINE
• When
starting the engine, check that the engine causes no abnormal noise and that it starts up easily and
smoothly.
• Check that there is no abnormal noise when the engine is idling or when the engine speed rises slightly.
When there is an abnormal noise at the engine startup and if that condition continues, the engine may be dam-
aged. In that case, ask your Komatsu distributor to check the engine as soon as possible.
MACHINE OPERATIONS AND CONTROLS OPERATION
3-162
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