4. Diesel engine with the harvest units to throttle the half open walking 5 hours of operation
5.Before the harvester works continuously，the lubricating oil pressure should reach 2kgf/cm2，water
temperature raise to 60℃.After that the harvester begin to keep a slow speed with small feed
quantity，and increase the load gradually to the rated feed quantity.
(VI) Precautions during Operation of Diesel Engine
During operation of diesel engine, there will be some omens which shall draw our attention before
malfunction:
1. Oil Pressure
During operation of diesel engine, the alarm light of oil pressure is twinkled repeatedly, which shows
the oil pressure is relatively low and the engine should be shut down for inspection.
2. Coolant Temperature
The indication of water thermometer exceeds100℃ or the indicator light thereof is on, which
shows the engine is overheated and it should be run at the speed lower than 1000rpm for 5min and
shut down after cooled for inspection.
In case of normal operation, water temperature can not reach the normal temperature, which
shows that the engine is overcooled; early abrasion may be caused and insulation measures shall
be adopted, such as add protection cover for radiator.
3. Engine Noise
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