Common Rail Injector 387-9432 Engine 330D 340D Fuel Injector for CAT

Attention should be paid to the vertical deviation between the plane and the center line of thread must meet the technical requirements. The nozzle tight cap must be tightened too small according to the specified torque, the nozzle shell and the nozzle needle valve body plane seal is too large, the needle valve body is easy to deform. The nozzle needle valve in the needle body is easy to block or even pin. The torque of the nozzle tight cap varies with the size and type of the basic series of the injector. After replacing the injector couple, the injection pressure of the injector must be rechecked and adjusted according to the specified parameters.

Single cylinder diesel engine is easy to reverse, and easy to cause injury accident, the following introduces some causes of single cylinder diesel engine reversal, the operator should pay attention to prevention. Diesel engine can not be started by hand, due to improper force, when the pressure rod down, the piston does not cross the compression top dead center by gas compression force down, under the action of the flywheel, the piston will reverse across the top dead center operation, resulting in reverse flout is not complete when the injection volume is larger or the throttle return spring spring is weak, release the throttle handle, the engine can not cut off the oil, flout. The fuel injection pump can stop supplying oil only when the speed regulating handle is lifted by hand. When the supply is stopped, it continues to run with the crankshaft due to the inertia of the flywheel. When the inertia force is less than the pressure in the cylinder, the piston can no longer cross the compression top dead center, but under the pressure of the gas downward movement to drive the crankshaft reversal, at this time, if the speed control handle has been loosened, the fuel injection pump will supply some oil, so that the diesel engine reverse fire.