First, the press does not breathe the phenomenon:
The air compressor is discharged without pressure air.
Cause of issue:
1. The air compressor loose pressure valve is stuck. The valve plate is deformed or broken.
2. Excessive carbon deposits in the inlet and exhaust ports.
Fault diagnosis and troubleshooting methods:
1. Check the loose pressure valve assembly to clean and replace the failed parts.
2. Remove the cylinder head, inspect the valve plate, and replace the deformed and broken valve piece.
3. Remove the cylinder head and clean the valve seat plate and valve plate.
Second, the air pressure is insufficient
Fault phenomenon: When the engine is running and the air compressor is inflating the air tank, the air pressure gauge indicates that the air pressure does not reach the starting pressure value.
Cause of issue:
1. The barometer is out of order.
2. The transmission belt between the air compressor and the engine is too loose or slippery or the air compressor to the pipeline between the gas storage tank is broken or the joint leaks.
3. The oil-water separator, pipeline or air filter has too much deposit and is blocked.
4. The air compressor exhaust valve is not tightly sealed, the spring is too soft or broken, the cylinder head bolt of the air compressor is loose, the sand hole and the cylinder head gasket are damaged and leaking.
5. The cylinder liner of the air compressor and the piston and piston ring are worn out and even leaking.
Fault diagnosis and troubleshooting methods:
1. Observe the barometer. If the indicated pressure is insufficient, let the engine run at medium speed for a few minutes. The pressure still does not rise or rise slowly. When the brake pedal is depressed, the deflation sound is very strong, indicating that the barometer is damaged. Repair the barometer.
2. If there is no deflation sound or venting sound in the above test, check if the air compressor belt is too loose, from the air compressor to the gas storage tank, to the control valve intake pipe, whether the joint is loose, broken or leaking. At the office.
3. If the air compressor does not inflate the gas storage tank, check if there is too much dirt in the oil water separator and air filter and the pipeline, and if it is blocked, remove the dirt.
4. After the above inspection, if the cause of the failure is still not found, it should be further checked whether the air compressor exhaust valve is leaking, whether the spring is too soft or broken, whether the cylinder head is blistered or not, according to the search. Replace or repair damaged parts.
5. Check if the air compressor cylinder liner and piston ring are excessively worn.
6. Check and adjust whether the installation direction of the unloading valve is the same as the direction of the label (arrow).