FAW liberation J6 flat top cab assembly

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The maintenance methods of transistor electric fuel pump is: the installation of electric fuel pump, the ground should be consistent with the polarity of the power supply ground car on the polarity, otherwise the pump can not work, also can make the transistor or bite the capacitor. in order to take full advantage of Shantou electric steam pump, the installation position of the best choice away from engine, good ventilation, convenient maintenance and lower tank place. the piston and cylinder with more precision, thus requiring gasoline must be highly clean, although the oil pump is provided with a filter screen and a magnet, but if gasoline is too dirty, will cause the pump barrel and plunger wear too fast, or even stuck in the car. So the general 4000-5000km, to filter, precipitation cup etc. cleaning. to keep the oil pump sealing joints, all rubber gaskets should be closed tight, no leakage or leakage, triangular needle carburetor would be closed for good, the oil level is correct, in order to avoid the oil spill. transistor electric fuel pump suddenly to oil, no oil pump or pump vibration and sound, although the vibration sound but not to oil, and the vibration sound normal group insufficient oil supply, oil has a lot of small bubbles, showed that the fault of.  electric pump; method of eliminating electric fuel pump fault: the first external circuit line removed, touch the ground test whether there is a fire, if there is a fire, the power supply is normal. If no fire, should check the car circuit. DC meter selecting a 2A, connected in series in the circuit, then if the ammeter pointer go to about 1,2A, and back and forth jitter phenomenon, the oscillation circuit part intact, normal fault in the circuit part and mechanical part. If the pointer or pointer indicating no more than 2A, or a pointer stopped at 1.2A but is swinging back and forth, the fault in the circuit part: to turn off the power, check whether the plunger return, if not return, is stuck or the plunger spring break. This can open the glass maintenance or replacement; the u can turn off the power after the plunger, and the plunger is stuck and connected to power, that the transistor has been the breakdown, should replace the transistor; the power supply is switched on, the vibration sound but not to oil, then for out of the oil valve damage or stuck, should remove the plunger valve repair; remove the wire touch iron without fire, the plunger is not moving, then touch the wire bottom cover, such as no fire, then the fault line in the car body or pump and the ground is not solid, should repair & restoration; nbsp; the pump vibration sound normal, but insufficient oil supply, and a cup of bubble, for fuel tank oil leakage phenomenon, should replace the sealing washer. If the cup is no bubble, pipe blockage or strainer too dirty, should check the cleaning of the opening and closing when the power supply is silent, remove the fire touch bottom cover fire, for the pump circuit breaker, should check whether each thread off. after the maintenance of electric gasoline pump, should be normal, and no leakage phenomenon.