Komatsu WA800-3E0, Operation & Maintenance Manual

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OPERATION
OPERATION
3-86
OPERATIONS AND CHECKS AFTER STARTING ENGINE 3
WARNING
q
Emergency stop
If the operation is abnormal or any other trouble occurs, turn the key in the starting switch to the OFF
position.
q
If the work equipment is operated without warming up the machine sufficiently, the response of the
work equipment to the movement of the control lever will be slow. The work equipment may not move
as the operator desires. Follow all warm-up procedures. Particularly in cold areas, make sure to warm
up the machine properly.
BREAKING-IN THE MACHINE 3
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.
q
Idle the engine for 5 minutes after starting it up.
q
Avoid operation with heavy loads or at high speeds.
q
Immediately after starting the engine, avoid sudden starts, sudden acceleration, unnecessary sudden stops,
and sudden changes in direction.
NORMAL OPERATION 3
After the engine starts, do not start operating the machine immediately. First, carry out the following operations
and checks.
NOTICE
Do not suddenly accelerate the engine before the warm-
ing-up operation is completed.
Do not run the engine at low idle or high idle continuously
for more than 20 minutes.
If it is necessary to run the engine at idle, apply a load
from time to time or run the engine at a mid-range speed.
1. Immediately after starting the engine, without depressing
the accelerator pedal (1), run the engine at idle for at least
10 seconds during the warm weather and for at least 15
seconds during the cold weather.