Common faults and troubleshooting methods of second-hand loaders

Second-hand loaders are a common type of construction machinery equipment that play an important role in industries such as construction and excavation. However, second-hand loaders often encounter some failures due to frequent use and long-term load operation. This article will provide an in-depth analysis of common faults and provide corresponding troubleshooting methods to help users better understand and repair second-hand loaders.

Common fault 1:
Hydraulic system failure The hydraulic system is an important part of a second-hand loader. Common failures include stuck hydraulic control valve, oil pump leakage, oil seal damage, etc.

The elimination method is as follows:
1. Clean the hydraulic control valve, check whether the parts are stuck, and replace the parts if necessary.
2. Check the sealing performance of the oil pump. If oil leakage is found, replace the sealing ring in time.
3. Check whether the oil seal is worn and replace it with a new one if necessary.

Common fault 2:
Engine failure: The engine is the heart of a second-hand loader. Common failures include difficulty in starting and excessive fuel consumption.

The elimination method is as follows:
1. Check the ignition system to ensure normal ignition. If necessary, replace the ignition coil or glow plug.
2. Check the fuel system, including filters, injectors, etc., and clean or replace parts if necessary.
3. Regularly check the engine temperature and lubricating oil to maintain appropriate operating temperature and oil volume.

Common fault 3:
Transmission system failure The transmission system is an important part of a second-hand loader. Common failures include clutch slipping, abnormal noise in the gearbox, etc.

The elimination method is as follows:
1. Adjust the running-in position of the clutch to maintain good contact, and replace the clutch plate if necessary.
2. Check the gears, bearings and other parts of the gearbox. If there are any abnormalities, replace or repair them in time.

Common fault 4:
Electrical system failure The electrical system is a key system of a second-hand loader. Common faults include short circuits, loose wiring, etc.

The elimination method is as follows:
1. Check whether there is a short circuit in the circuit, find the cause of the short circuit, and repair it.
2. Check whether the terminals are loose and fix or replace the connector if necessary.

In addition to the above common faults, second-hand loaders may also encounter other faults, such as lubrication system failure, braking system failure, etc. But as long as we have an in-depth understanding of the working principle of the equipment, troubleshoot problems in time, and perform regular maintenance, we can ensure the normal operation of the second-hand loader and extend its service life. We will also conduct in-depth analysis of other faults in the future, and interested friends can continue to follow us.

In addition, if your loader needs to purchase relevant loader accessories during maintenance and repair, you can contact us. If you need to buy a new loader or a second-hand loader, you can also contact us. CCMIE provides comprehensive loader sales services.