Komatsu WA600-8 Operation & Maintenance Manual page 487

ATTACHMENTS AND OPTIONS
Engine coolant temper-
ature
Min. 10 °C
10 to -30 °C
METHOD FOR OPERATING AUTOMATIC WARM-UP SYSTEM
When starting the engine, if the engine coolant temperature is 30 °C or lower, the warming-up operation (engine
speed 1000 rpm) is performed automatically and stopped when the engine coolant temperature increases to
30 °C or higher.
METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE
• If there has been any emergency stop, abnormal actuation, or other trouble, turn the starting switch
key to OFF position.
• If you cannot stop the engine by turning the starting switch to OFF position, use the engine shut-
down secondary switch to stop the engine.
• If the work equipment is operated without sufficient warming-up operation of the machine, response
of the work equipment to movement of the work equipment control lever will be slow, and the work
equipment may not respond as the operator desires. Be sure to perform the warm-up operation.
Particularly in a cold weather, be sure the warm-up operation is completed.
• If the machine is operated without sufficient warming-up operation, sensors may break because of
frozen DEF tank.
• Do not approach the exhaust pipe of the engine while the engine is running or just after it is stop-
ped.
• Keep combustible materials away from the engine exhaust pipe outlet.
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.
Turbo protect time
0 seconds
Variable between 0 and 20 sec-
onds
k k
WARNING
HANDLE STEERING WHEEL SPEC MACHINE
6-25