OPERATION OPERATION 1. Pull fuel control lever (1) to the center position between LOW IDLING and HIGH IDLING and run the engine at medium speed for about 5 minutes with no load. 2. After warm-up has completed, check gauges and caution lamps for proper operation. If any abnormality is found, repair it. Continue to run the engine at low load until engine water temperature gauge ( 2 ) falls within the white range (Mon- itor Panel Spec.) or green range (Gauge Panel Spec.). 3. Check that there is no abnormal exhaust gas color, noise, or vibration. If any abnormality is found, repair it. 3-68