tightened.
Exhaust the gas in fuel pipes.
Start up engine and check for the leakage.
3. Exhaust in Fuel System
Air entering into the fuel system will lead to difficult startup of engine and other failures. If the fuel tank is
emptied during maintenance, please exhaust the gas in the fuel system after refilling of fuel.
Procedure of Exhaust in Fuel System
Loosen the bleed screw ①.
Press the fuel transfer pump ② up and dow n w ith
force till no bubbles could be seen in the fuel exhausted
from the bleed screw ①.
Tighten the bleed screw ① and press the transfer
pump ② up and dow n w ith force ti
l
l
l
the resistance is feltto
increase suddenly.
If the engine is not operated stably after startup, the
accelerator handle could be pulled two or three times.
Notice:
1. The piston type fuel transfer pump, mounted on the side of injection pump, is driven by the eccentric
wheel on the camshaft of the injection pump. When diesel engine stops running and fuel pumping or air
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