Low engine speed is good, but the speed can not be increased when speeding up, unable to drive, which is caused by insufficient fuel circulation.
The reason
Baotou beiben parts of fuel injection pump to adjust properly, the reduced oil supply.
The spring of the governor is reduced due to fatigue. When floorboarding, oil amount regulating rod can not be moved forward at the end of the fuel injection pump to reduce the amount of engine cannot reach the rated speed.
The injection pump plunger and sleeve, injector needle and needle valve wear, pump the oil when the diesel oil leakage increased, the relative reduction in the amount of.
The Baotou beiben fittings throttle control rod to adjust properly, or the accelerator pedal pin open, the accelerator pedal is not in place, resulting in full load fuel supply is too small.
With the passage of the air.
The diagnosis and treatment methods
Baotou beiben heavy duty truck parts of engine power shortage, if the low speed is good, and the smoke is normal, the engine combustion is good, good quality diesel fuel injection start time, normal, good sealing and sufficient air intake cylinder.
In the low-voltage circuit under normal conditions, loose degree should first check the gas pedal connecting pin and connecting rod length adjustment is appropriate. When the accelerator pedal in the end, governor control arm in the maximum position, should make the high speed limit screw and limit block contact. Otherwise should be adjusted.
The air in the discharge line.
On the fuel injection pump test bench debugging fuel injection pump, so that the fault can be ruled out.