Komatsu H70051 Series Operation & Maintenance Manual page 247

OPERATION
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 from the factory.
However, operating the machine under full load before running in the machine can adversely affect the
performance and shorten the machine life.
Be sure to run in the machine for the initial 100 hours (as indicated on 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.
• 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 of the machine.
METHOD FOR OPERATIONS AFTER STARTING ENGINE
Do not start operating the machine immediately after the engine starts. First, perform the following operations
and checks.
NOTICE
Do not accelerate the engine abruptly until it is warmed up.
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 low or high idle, apply a load from time to time or run it at a mid-
range speed.
MACHINE OPERATIONS AND CONTROLS
3-181