Komatsu D32E-1 Operation & Maintenance Manual page 69

12. OPERATION
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When starting in cold weather, operate the transmission/steering lever
as follows. Move the lever within the N (neutral) band range. Move the
lever fully in left direction and hold it for 5 seconds, then move the lever
fully in right direction and hold it for 5 seconds. Repeat this operation in
each direction in turn for 5 minutes with engine running under no load.
After warm up run is completed, check gauges, warning lamps and
charge lamp for proper operation. If any abnormality is found, repair it.
Continue to run the engine at light load until engine coolant temperature
gauge indicator falls within the green range.
Check that there is no abnormal exhaust gas color, noise, or vibration.
If any abnormality is found, repair it.
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