Oil return pipe is an insignificant part in the forklift engine system, but it plays an important role in ensuring the normal operation of the engine.
If the return pipe leaks or blocks, it will cause a variety of unexpected faults.
It's a "window" to eliminate engine failure, through the return pipe we can subtly checking,
judge many failures of engine,
the basic inspection method is as follows: open return pipe to inspection,
to quickly determine the working condition of the fuel system to understand
if the fuel pressure is normal, you can observing the return pipe of oil return conditions for indirectly
judgment. when there is no fuel pressure gauge connected.
The method is take off the return oil pipe, then start the engine, and observe the return oil situation.
If the oil return is urgent, the fuel pressure is basically normal. If the return oil is weak or
there is no return oil, it indicates that the fuel pressure is insufficient, and parts such as electric
fuel pump and fuel pressure regulator need to be inspected and repaired,during inspection,
the oil discharged from the return oil pipe should be imported into the container with rubber
hose to prevent environmental pollution and fire.