(V) Sudden Decreased Speed or Shutdown of Diesel Engine
Fault Characteristics & Causes
1. Fuel system
a) Air is entrained in low-pressure fuel pipeline.
b) Water is mixed in fuel.
c) Filter is clogged by impurities.
a）Loosen vented screw to exhaust the air.
b) Screw off the drain plug of oil-water
separator under coarse filter to drain the
water inside.
c) Regularly replace the filter element.
2. Fuel injection nozzle is seized.
3. Injector pump works improperly.
3. Adjust or replace the pump.
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