Fault diagnosis and treatment of Cummins diesel generator

Due to the steady flow of diesel generators in the fuel system units operate to provide fuel to maintain power. Diesel generator manufacturers share diesel generator fuel system maintenance methods to give you common faults, so that we Weifang diesel generator plant in the maintenance of fuel system failure help.

Diesel generator set normal low speed, short time high speed, smoke discharge is too small fault diagnosis and treatment methods Diesel generator performance is good, throttling speed can be quickly improved, but continuous throttling speed is not easy to improve, weak operation, or increase load unit can not run and stop, which is caused by low pressure fuel supply shortage.

The causes are: low pressure oil circuit is not smooth. Insufficient supply of fuel pump, or oil inlet screen blocked. The intake valve of the tank cap is invalid. Under the above conditions, the fuel pressure of the low pressure tank of the fuel injection pump is insufficient and can only maintain the fuel supply required by small load. For large and medium loads, when more oil supply is needed, the medium loads cannot be met, so that the unit cannot run.

Treatment: Check whether the intake valve reaches the failure of the tank cap will cause vacuum in the tank, diesel fuel can not be sucked out. Most of this phenomenon exists when the tank cap is missing due to the use of airtight plastic sheeting encapsulation. Low pressure oil is seen, and the inlet pipe joint filter is blocked.

Fault diagnosis and maintenance method of diesel generator set with normal low speed, no high speed and too little smoke emission. Diesel generators operate well at low speed, but cannot be accelerated, and the running load is weak, which is due to insufficient oil circulation.

Reason: improper adjustment of fuel injection pump, reduced oil supply. The spring force of the governor spring decreases due to fatigue. The plunger and sleeve of the needle valve of the injection pump and the injector are seriously worn with the needle valve body, and the diesel leakage increases when the pump is pumping, and the oil supply is relatively reduced.

Jiangsu Meao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.