OPERATION
OPERATION
3-84
In cold weather, the oil viscosity is high, so there may be cases where the prelube is not completed in one step. In
this case, operate it for 60 seconds, then return to the condition in Step 1), wait for approx. 60 seconds, then
repeat the procedure from Step 2.
If the prelube is not completed even when it is carried out 3 times, there is probably an abnormality in the prelube
system, so contact your Komatsu distributor for inspection and repair.
(For details of the method of starting the engine in emergencies, see “PRELUBE SKIP FUNCTION WHEN START-
ING IN EMERGENCY (3-153)“.)
2.
Check if preheating pilot lamp (3) on the main monitor is
lighted up.
If preheating pilot lamp (3) is not lighted up, go to Step 3.
If preheating pilot lamp (3) is lighted up, leave in this condi-
tion until it goes out.
The guideline for the preheating time is as follows.
In cold areas, it varies according to the temperature of the
coolant when the engine is started.
3.
When preheating pilot lamp (3) goes out, turn the key in
starting switch (1) to the START position. The engine will
start.
4.
After the engine starts, release the key in starting switch
(1). The key will automatically return to the ON position.
REMARK
Immediately after the engine starts, the turbocharger protect function prevents the engine speed from going above
1000 rpm for a maximum of 20 seconds, even if the accelerator pedal is depressed.
q
If the accelerator pedal is kept depressed, the engine speed will suddenly rise after the turbo protect time. To
prevent this, release the accelerator pedal.
Cooling water temperature
Pre-heating time
above -5 to -15°C
20 - 30 second
-15 to -25°C
30 - 45 second
below -25°C
45 second
Summary of Contents for WA800-3E0
Page 2: ......
Page 3: ...FOREWORD 11...
Page 27: ...SAFETY SAFETY LABELS 2 5 LOCATION OF SAFETY LABELS 2...
Page 66: ...GENERAL VIEW OPERATION 3 4...
Page 84: ...EXPLANATION OF COMPONENTS OPERATION 3 22 SWITCHES 3...
Page 224: ...TROUBLESHOOTING OPERATION 3 162...
Page 309: ...SPECIFICATIONS 15...
Page 330: ...HANDLING MACHINES EQUIPPED WITH VHMS ATTACHMENTS OPTIONS 6 20...
Page 331: ...INDEX 17...
Page 332: ...INDEX 7 2...
Page 335: ...COLOPHON 18...
