Common Problems And Solutions Of Wheel Loader

Common usage scenarios of wheel loaders:

Wheel loader is a type of construction machinery that must be operated, maintained and repaired by personnel who are familiar with the characteristics of the loader and have relevant operational knowledge. Wheel loaders are mainly used for construction, mining, lime kilns, stone factories, sand yards, coal yards, snow shoveling, as well as the loading, unloading, and stacking of bulk materials. They can also be used as heavy and powerful machines for clearing garbage in large livestock farms.

Like any mechanical equipment, wheel loaders may encounter issues that affect their performance and efficiency. In this article, we will discuss the six most common issues with wheel loaders and provide solutions.

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1. Difficulty or inability to start:

The latest wheel loaders from Laigong are all started by an electric control starter.

• If the starter fails to work properly during startup, the first thing to check is whether the battery voltage is normal. If it works at low temperatures for a long time, it may cause the battery of the wheel loader to end its service life prematurely.

The starter and engine are both working normally, but the engine does not start

• At this point, it is necessary to check the intake system of the wheel loader to see if there are any debris blocking the intake, indicating that the intake resistance exceeds the technical specifications of Laigong, and indicating difficulty or failure to start.

The starter is normal, but the engine is unresponsive

• At this point, do not attempt to start the engine again. If the engine does not respond, it may be due to the crankshaft not working properly. It may be due to shaft hugging, cylinder biting, or other abnormal conditions. You can check whether there are iron filings in the engine oil pan and contact Laigong after-sales service for remote video judgment, repair or after-sales service as soon as possible

 

2. Engine overheating:

One of the most common problems faced by wheel loader operators is engine overheating.

• This issue may be caused by various reasons, such as radiator malfunction, low coolant level, or thermostat malfunction.
• Regularly check the radiator and coolant level. If the coolant level is low, it should be filled immediately. In addition, the radiator should be cleaned regularly to prevent any blockages that may cause overheating.

 

3. Clutch slippage：

The driving habits of wheel loader operators may lead to premature termination of clutch life.

• One reason is that the free stroke of the clutch pedal is too small, causing the clutch to slip;
• Secondly, the pressure spring is too weak, which prevents the clutch from returning to its original position in a timely manner, causing the clutch to slip;
• Thirdly, the friction plate surface of the clutch has oil stains, which greatly increases the friction force
• Fourth, long-term bad usage habits can lead to premature termination of clutch life.

 

4. Hydraulic system leakage:

A common problem faced by wheel loaders is hydraulic system leakage.

• Hoses, seals, or fittings may leak, resulting in hydraulic oil loss and reduced efficiency.
• To solve this problem, operators should regularly check the hydraulic system for any signs of leakage.
• If a leak is detected, the affected components should be repaired or replaced immediately.
• If exposed to harsh working conditions for a long time, such as entering deserts, jungles, or coasts, the maintenance and inspection cycle should be appropriately shortened. Prevent secondary damage to wheel loaders caused by premature aging of hoses and seals.

It is recommended to use high-quality lubricating oil while strictly following the maintenance manual of the Laigong wheel loader and using original spare parts.

 

5. Electrical system malfunction:

Electrical system failures can cause various problems with wheel loaders.

• For example, startup issues, light malfunctions, or unstable operation of control devices.
• To address these issues, it is crucial to check the battery connections and ensure their cleanliness and safety.
• In addition, the electrical system should be regularly inspected for any signs of looseness or damage.
• If any faulty components need to be repaired or replaced, strict reference should be made to the Laigong Wheel Loader User Manual to ensure the normal operation of the machine.

 

6. Tire wear and damage:

Wheel loader tires can withstand heavy loads and rough terrain, which may result in wear and damage.

• Excessive tire wear can affect the stability and performance of the machine.
• The operator should regularly check the tires for signs of excessive wear, such as uneven tread or protrusions.
• Maintaining appropriate tire pressure and avoiding overloading can help prevent tire damage.

 

Summary of Common Problems and Solutions for Wheel Loader:

Laigong wheel loaders are essential machines in various industries, but they may encounter problems that affect their performance. By understanding common problems and their solutions, operators can ensure the safe and smooth operation of wheel loaders. Regular maintenance, timely repair, and appropriate upkeep can help extend the lifespan of these machines and maximize their efficiency.