REMARK
• The smell of the exhaust gas is different from that of the conventional diesel engine because of the exhaust
gas filtering function.
• White smoke may be discharged for a short time immediately after the engine is started or during the after-
treatment devices regeneration in the cold season, but this is not a failure.
METHOD FOR TESTING PARKING BRAKE
Check that the parking brake works properly.
If any problem is found in operation, ask your Komatsu distributor for adjustment.
METHOD FOR CHECKING BRAKE
Drive the machine forward and in reverse slowly on a level ground with no obstacles around and check the
brake performance.
If any problem is found in operation of the brake, ask your Komatsu distributor for adjustment.
METHOD FOR CHECKING CLEARANCE BETWEEN BRAKE PEDAL AND FLOOR
Depress the brake pedal fully and check that the pedal is not too close to the floor. Also check that the feeling
when operating the brake pedal is normal.
If any problem is found, ask your Komatsu distributor for adjustment.
METHOD FOR CHECKING ABNORMAL POINTS DETECTED UP TO PREVIOUS
DAY
Check the area which was abnormal when the machine was used previous day.
If there is any abnormality, ask your KOMATSU distributor for testing and repair.
METHOD FOR RUNNING-IN THE NEW MACHINE
NOTICE
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 short-
en the machine life. Be sure to run in the machine for the initial 100 hours (as indicated by the service
meter).
Make sure that you fully understand the descriptions in this manual, then run in the machine while paying atten-
tion to the following points.
• Perform warm-up operation 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 of the machine.
METHOD FOR ENGINE WARM-UP OPERATION
WARNING
If the oil temperature is low in a cold weather, the response
of machine for the control of the AJSS lever is slow, and
the machine may move differently from the operator's in-
tension.
In such case, use the frame lock bar to secure safety, and
perform the warm-up operation in a large place. At that
time, be sure not to relieve the oil pressure in the circuit
for more than 5 seconds.
OPERATION MACHINE OPERATIONS AND CONTROLS
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