Method For Operations And Checks After Starting Engine - Komatsu HD465-8 Operation & Maintenance Manual

OPERATION
2.
After the preheating time passes, turn the key in starting
switch (1) to START position.
The engine starts.
If the engine cannot be started with the above procedure,
wait for at least 2 minutes, then repeat the procedure
again from the step 1.
REMARK
When the key in starting switch proceeds through OFF posi-
tion, the pointer of tachometer (3) may swing once and "88"
may be displayed on the speedometer (4), however, it is not a
trouble.
REMARK
If a password has been set, the password input screen will be
displayed on the monitor screen, but the preheating pilot lamp
lights up in the same way as on the standard screen.
TURBOCHARGER PROTECTION FUNCTION
Since the turbocharger is a device that rotates at a very high speed, seizure results if it is not lubricated well.
In order to protect above trouble, the turbo protect function restricts increase of the engine speed immediately
after the engine is started until its oil pressure reaches an appropriate level.
• While the turbo protect function is operating, increase of the engine speed is restricted even if the accelera-
tor pedal is depressed.
• The turbo protect function operates for up to 20 seconds.

METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE

• For any emergency condition, park the machine on solid level ground.
• If engine does not stop, use the shutdown secondary switch to stop the engine.
• Stay away from the exhaust pipe outlet to prevent injury.
• Keep flammable materials away from the exhaust pipe to avoid fire.
MACHINE OPERATIONS AND CONTROLS
k k
WARNING
3-171