The reason why the Weituo Nez crash when used when used?

Fault: A brand new Weibo de Renz wind-free diesel generator set appeared in Di, there was a failure that could not be started. The starter can drive the diesel engine, but the diesel engine is not angry.
Troubleshooting: Because it is a new machine, the maintenance personnel only conduct a comprehensive examination of the low-voltage oil supply system of the generator set, the fuel system exhaust, inspects that the diesel filter is not found, but the generator still cannot start.
When the starter drags the diesel engine, it is found that the high pressure tube of the diesel engine has no pulp, suspected that the high-pressure oil pump does not supply oil, removes the high pressure oil pipe and found that there is no oil-free emitted outlet, and then remove the high pressure oil pump professional treatment.
When the high-pressure oil pump was checked, the 6 plungers of the oil pump were inspired without pump oil, remove the deposited deputy examination, and found that six plunses were broken due to card death, and they could not be repaired.
Therefore, there are six plungers and oil valves, and the oil pump is passed, but the machine still cannot start. At this time, you can feel that the high pressure tube has a pulping, which proves that the high pressure oil pump is normal. In combination with the pose of the piston deputy card, suspect the needle valve dipper (injector) may have the same problem. Then remove a injector to connect to the high pressure tube, drag the diesel engine with a starter, the injector oil is discharged, which is just a drop (drain) oil, indicating that the needle valve dipper of the injector does exist. problem. Demolition of 6 injectors professional testing, and the results found that all non-fuel injected (leak) oils were found to prove that the needle valve coupling of the injector exists. After disassembling all injectors, all needle valves were caught with the needle valve body, and they could not pull out. After using the tool to pull out the needle valve, check the entire needle valve with different degrees of strain.
Troubleshooting: Replace the needle valve coupling (injector) of 6 injectors, debugging, and the diesel generator is successful and the operation is normal.
Cause Analysis: The diesel generator set is a new generator. Why does it have a fault? After inquiry related personnel and combined with the fault phenomenon, it is considered that although the generator set is a new machine, the generator has been stored for a year in the warehouse. The problem should be in the factory, no rust storage processing or use unclean diesel, resulting in the precision doll of the diesel oil supply system.
This fault description is necessary to stop the diesel engine for a long time. Before the shutdown, there must be rust-proof treatment and use a dedicated anti-rust fuel to operate the diesel engine. Otherwise, it may cause the diesel engine to have unexpected faults.
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