Komatsu D475A-5E0 Operation & Maintenance Manual page 176

OPERATION OPERATION
1. Turn fuel control dial (1) to the center position between Low idle
(MIN) and High idle (MAX) positions and run the engine at a
mid-range speed for 5 minutes under no load.
2. After warm-up is completed, check gauges and caution lamps
for proper operation. If any problem is found, repair it.
Continue to run the engine under a light load until engine
coolant temperature gauge indicator (2) is within the green
range (B).
(A): White range
(B): Green range
(C): Red range
3. Check for abnormal exhaust gas color, noise, or vibration. If any problem is found, contact your Komatsu
distributor.
OPERATION OPERATION
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