Fault phenomenon: Abnormal noise occurs during the operation of the
diesel generator set, such as knocking, friction, whistling, etc.
Possible reasons and repair methods:
1. Mechanical failure:
Diagnostic method: Determine the fault location based on the type and source of noise, such as piston knocking, bearing wear, poor gear meshing, etc.
Repair method: Disassemble and inspect the relevant components, replace worn or damaged parts.
2. Abnormal combustion:
Diagnostic method: Check if fuel injection is normal and if there is severe carbon buildup in the combustion chamber.
Repair method: Adjust the fuel injection pressure and clean the carbon deposits in the combustion chamber.
3. Air leakage in the intake system:
Diagnostic method: Check if the connection of the intake pipeline is loose and if the sealing gasket is damaged.
Repair method: Tighten the connection of the intake pipe and replace the damaged sealing gasket.
4. Exhaust system blockage:
Diagnostic method: Check if the exhaust pipe is unobstructed and if the muffler is damaged.
Repair method: Clean the exhaust pipe and replace the damaged muffler.
5. Wear of generator bearings:
Diagnostic method: Check if the generator bearings are running smoothly and if there are any abnormal noises.
Repair method: Replace the worn generator bearings.
Attention: The above fault diagnosis and repair methods are for reference only. Please follow the actual situation for specific operations. It is recommended to carefully read the user manual of the diesel generator set and consult professional maintenance personnel before carrying out any maintenance operations.
