The motor grader/Niveleuse/Motoniveladora is the main machine used for shaping and leveling in earthworks, and is widely used in large-scale ground leveling operations such as roads and airports. The reason why the motor grader has a wide range of auxiliary operation capabilities is that its scraper can complete 6 degrees of movement in space. They can be carried out individually or in combination.
The clutch of a motor grader/Niveleuse/Motoniveladora is an important component in its transmission system, and is mainly used to transmit or cut off power between the engine and the transmission device.
The following is a basic introduction to the motor grader clutch, common problems and maintenance suggestions:
1. The function of the clutch/ La función del embrague/La fonction de l’embrayage
(1). **Power transmission/disconnection**: Controls whether the engine power is transmitted to the gearbox by engaging and disengaging the clutch.
(2) Smooth start: The clutch is gradually engaged during start-up to reduce the impact on the transmission system.
(3). **Gear Shift Assist**: Cuts off power when shifting gears to protect gears from impact.
2. Clutch type/Tipo de embrague/Type d’embrayage
Motor graders usually use a **dry clutch** or a **wet multi-plate clutch**:
- **Dry clutch**: simple structure, fast heat dissipation, but requires high operating skills.
- **Wet multi-plate clutch**: soaked in oil, good heat dissipation, strong wear resistance, suitable for heavy-load conditions.
3. Common faults and causes/Fallos y causas comunes/Défauts et causes courants
(1). **Clutch slip**
- **Cause**: Friction plate wear, oil stains (wet type), pressure plate spring failure, pedal free travel is too small.
- **Performance**: Lack of power, increased fuel consumption, increased engine speed but no increase in vehicle speed.
(2). **Clutch disengagement is not complete**
- **Cause**: Pedal free travel is too large, friction plate is deformed, hydraulic system (such as master cylinder or slave cylinder) is faulty.
- **Symptoms**: Difficulty in shifting gears, abnormal gear noise.
(3). **Abnormal noise or vibration**
- **Cause**: Damaged release bearing, loose friction plate rivets, unbalanced pressure plate.
4. Maintenance and care/Mantenimiento y cuidado/Entretien et soins
(1) **Regular inspection**
- Check clutch fluid (wet) or clean friction linings (dry).
- Adjust the pedal free travel (usually 20-40mm, refer to the instruction manual).
(2) **Avoid improper operation**
- Reduce long periods of half-clutch (such as frequent starting or long periods of low-gear operation) to prevent overheating.
- When changing gears, depress the clutch pedal completely to avoid forcing the gear into position.
(3). **Cleaning and lubrication**
- Clean the dust or sludge in the clutch chamber regularly (dry type).
- Lubricate the release bearing and pedal shaft.
(4). **Replacement cycle**
- The life of the friction plate is usually 1000-2000 hours (depending on the working conditions). If slipping or abnormal noise is found, it needs to be replaced in time.
**5. Notes on clutch replacement/Precauciones al sustituir el embrague/
Précautions à prendre lors du remplacement de l’embrayage
(1). **Professional operation**: Special tools are required to disassemble the gearbox and flywheel. It is recommended that professional maintenance personnel perform the operation.
(2) **Accessory matching**: Use original or equivalent friction plates, pressure plates and release bearings.
(3) **System inspection**: When replacing the clutch, simultaneously check whether the flywheel surface is worn and whether the hydraulic system is leaking.
6. Troubleshooting steps/Pasos para la solución de problemas
Étapes de dépannage
(1). Check whether the pedal free travel is normal.
(2). Check whether the hydraulic pipeline is leaking (wet clutch).
(3). Disassemble and inspect the clutch assembly, and check the condition of the friction plate, pressure plate, and release bearing.
(4). Test the alignment of the engine and gearbox to avoid eccentric wear.
If you encounter complex problems (such as hydraulic system failure or abnormal power transmission), it is recommended to contact the manufacturer or a professional maintenance team to avoid greater losses due to improper operation.
How to buy Motor Grader maintenance related accessories at CCMIE?
If you need to buy Motor Grader/Niveleuse accessories or a new Motor Grader/Niveleuse , you can contact us. If you need to buy a second-hand Motor Grader/Motoniveladora , you can also contact us. CCMIE provides you with comprehensive Motor Grader/Motoniveladora sales services.
Post time: Apr-06-2025