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MAINTENANCE
METHOD FOR CHECKING BRAKE PERFORMANCE
If the machine moves off during the following operation, ask your Komatsu distributor for repairs imme-
diately.
Before starting the engine, check the safety around the machine, and then perform the following operation.
1.
Turn the starting switch key to START position (C).
The engine starts.
2.
Set work equipment lock lever (1) to FREE position (F).
3.
Operate blade control lever (2) to float the blade.
Leave work equipment lock lever (1) in FREE position (F).
4.
Set parking brake lever (3) to FREE position (F).
5.
Depress decelerator/rake pedal (4) and set joystick (steer-
ing, directional and gear shift lever) (5) to the forward.
6.
Operate fuel control dial (6) and gradually raise the engine
speed to full throttle.
7.
Check that the machine can move or that the warning
screen is displayed on the machine monitor.
•
When the machine cannot move and the warning
screen is not displayed on the machine monitor.
The brake is normal.
•
When the machine can move or the warning screen is
displayed on the machine monitor.
Immediately ask your Komatsu distributor for repair.
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WARNING
MAINTENANCE PROCEDURE
4-49
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