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OPERATION
OPERATION
OPERATIONS, CHECKS AFTER STARTING ENGINE
BREAKING-IN THE MACHINE
CAUTION
Your Komatsu machine has been thoroughly adjusted and tested before shipment. However, operating the machine under severe
conditions at the beginning can adversely affect the performance and shorten the machine life.
Be sure to break-in the machine for the initial 100 hours (as indicated by the service meter).
During break-in operations, follow the precautions described in this manual.
Idle the engine for 5 minutes after starting it up.
Avoid operation with heavy loads or at high speeds.
Immediately after starting the engine, avoid sudden starts, sudden acceleration, unnecessary sudden stops, and
sudden changes in direction.
WARMING-UP OPERATION
NOTICE
Avoid accelerating the engine suddenly before the warming-up operation is completed.
Do not run the engine for more than 20 minutes at low idling or high idling.
If it is necessary to idle the engine, apply a load from time to time or run at a mid-range speed.
On machines equipped with auto emergency steering, if the machine is not fully warmed up, the emergency steering may be
actuated momentarily when the parking brake switch is set to TRAVEL or the dump control lever is operated.
After the engine starts, do not start operating the machine immediately. First, carry out the following operations and
checks.
1.
After starting the engine, run the engine at idle for 5 minutes for warming up operation.
2. After the warming-up operation, check that the machine monitor is normal.
If there is any problem, carry out maintenance or repair.
When the AISS LOW switch is at the AUTO position and the engine water temperature is still low, high idle
revolution is automatically maintained.
3.
Check if there is no problem in the steering operation, flashing of lights, sound of horn, exhaust gas color, noise,
or vibration. If any problem is found, repair it.
When the steering oil temperature is low, the steering will become slightly heavier, so avoid operating the
steering when traveling at high speed.
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