As a common diesel generator set, the oil engine wears quickly and is prone to produce various deposits. Therefore, it is necessary to mark the maintenance time and content according to the operating instructions of the diesel generator set. Especially when the diesel generator set produces abnormal noise, the following corresponding maintenance should be carried out immediately:
1. Check the cylinder head assembly, remove the cylinder head, check the wear of the valve, valve seat, valve guide, valve spring, and the mating surface of the push rod and rocker arm. If necessary, perform grinding or replacement.
2. Check the wear of the crankshaft assembly, thrust bearing and thrust plate, whether the inner and outer rings of the rolling main bearing have circumferential swimming, and replace if necessary.
3. Check the transmission mechanism, remove the front cover, observe the wear of the meshing surface of the transmission gear, and measure the meshing gap, repair or replace if necessary.
4. Check the injector, check the spray condition of the injector on a special test bench, and grind or replace the injector assembly if necessary.
5. Check the fuel injection pump, check the tightness of the plunger and coupling and the wear of the fly iron pin, and replace it if necessary.
6. Check the oil pump and water pump, disassemble, inspect and measure the vulnerable parts, and make adjustments.
7. Check the cylinder head and the gaskets of the intake and exhaust pipes, and replace the damaged or lost sealing effect.
8. Check the charger and starter motor, clean the components and bearings, add new grease after drying, check the gear wear of the starter and whether the transmission is flexible.
9. Clean the sand, dirt and scale in the water jacket.

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