How to solve the "three leakage" phenomenon of diesel generator set?

The "three leakages" of diesel generator sets now refer to: water leakage, oil leakage, and diesel leakage of diesel generator sets. "Water leakage" is mainly manifested in the leakage of fresh water pumps, water radiators and water pipes; "oil leakage" is mainly manifested in oil leakage from the oil pan gasket; "diesel leakage" is mainly manifested in the leakage of diesel oil at the ports of the oil transfer pump and diesel filter , The following are the solutions for water leakage, oil leakage and diesel leakage of various components of diesel generator sets organized by generator manufacturer JUNVOCH for you.

 

 First, the treatment method of diesel generator set water leakage

1) The solution to the leakage of fresh water pump

a. If the monitoring hole of the fresh water pump also leaks, the fresh water pump should be removed from the body and disassembled, and then the water seal should be replaced.

b. When the drain valve installed on the fresh water pump leaks due to the damaged spring, a new spring or a new drain valve can be replaced. Maintenance personnel should apply grease to the spring of the drain valve to prevent the spring from rusting.

2) The solution to the leakage of the water radiator

a. The repair method of the upper and lower water chambers of the radiator After detecting the leaking parts of the radiator, clean the leaking parts, and then use a metal brush or scraper to completely remove the metal paint and rust, and then repair it with solder. If there is a large area of ​​water leakage at the fixing screws of the upper and lower water chambers, the upper and lower water chambers can be removed, and then two water chambers of appropriate size can be remade. Before assembling the upper and lower water chambers, apply adhesive or sealant on the top and bottom of the gasket, and then fix it with screws.

b. The repair method of the radiator water pipe, when the damage area of ​​the outer water pipe of the radiator is found to be small during the inspection process, it can be repaired by soldering. If the damaged part is large, use needle-nose pliers to clamp the two ends of the damaged tube to make it watertight. However, the number of blocked water pipes should not be too much, otherwise the heat dissipation effect of the radiator will be affected. If the internal water pipe of the radiator is damaged, replace or repair the internal water pipe of the radiator after removing the upper and lower water chambers.

3) Solutions for leaking water pipes

When the water pipe leaks due to aging, it should be replaced with a new pipe. If the water pipe is difficult to buy, it can be wrapped with waterproof tape. If there is water leakage due to the rust of the clip, you can replace the clip or wrap it with iron wire.

 

Second, the solution to the oil leakage of the oil pan gasket of the diesel generator set

1. When oil leaks from the gasket of the oil pan, the gasket should be replaced. How to replace the oil pan gasket is as follows:

a. Use a socket wrench or a Torx wrench to remove all the fixing screws of the oil pan diagonally.

b. After dismantling, wipe the oil pan and crankcase and the parts in contact with the gaskets, then apply sealant, and assemble the gaskets neatly.

c. During the assembly process, tighten the screws diagonally, and do not tighten one screw before tightening the second one. After all the screws are screwed in, then gradually tighten all the screws according to the technical requirements.

 

3. The solution to the leakage of diesel oil at each interface of the diesel generator set fuel pump and diesel filter

The failure of diesel leakage at the interface is generally caused by damage to the gasket or loosening of the oil return screw. The solutions are as follows:

1. If the oil return screw is loose, as long as the maintenance personnel use the Torx wrench to tighten it according to the specified torque.

2. If there is oil leakage due to gasket damage, generally replace the gasket with a new one.