1. Daily inspection
1. Check the hydraulic oil level:
Park the roller on a level surface and observe the hydraulic oil tank oil level gauge. If the oil level is more than 2 cm below the oil mark, it needs to be replenished with hydraulic oil of the same brand.
Hydraulic oils must not be mixed. Hydraulic oils of different brands may react due to different chemical compositions, affecting the normal operation of the hydraulic system.
2. Check the hydraulic oil cooler:
Clean the dust and grease on the surface of the hydraulic oil cooler to ensure that the cooler has a good heat dissipation effect.
You can use compressed air or strong water flow to flush the plate-fin cooler ventilation duct. If you use a steam jet cleaning machine, the effect will be better.
3. Check the hydraulic pipeline:
Check whether there is leakage in the hydraulic pipeline, including the oil pipe and pipe joint.
If leakage is found, replace the damaged seals or repair the pipeline in time.
4. Check the hydraulic drive motor and vibration motor:
Check the working status of the hydraulic drive motor and vibration motor, and pay attention to whether there is any abnormal sound.
Check whether the motor's coupling transmission mechanism is normal to ensure its smooth operation.
2. Regular inspection
1. Check the hydraulic system pressure:
Check whether the vibration oil circuit system pressure is 14-15MPa, and whether the steering oil circuit system pressure is 10MPa.
If the pressure is abnormal, it is necessary to adjust the hydraulic system pressure or check the hydraulic pump, motor and other components.
2. Check the hydraulic oil filter:
Check whether the filter element of the hydraulic oil filter is blocked, and replace the filter element if necessary.
The filter element of the hydraulic oil filter needs to be replaced in the first month after the new car is put into use or the hydraulic oil is replaced, and then replaced every three months.
3. Check for hydraulic system leakage:
Check the sealing of each component of the hydraulic system, including the hydraulic pump, motor, control valve, etc.
If leakage is found, the relevant components should be repaired or replaced in time.
3. Fault diagnosis
1. The vibration wheel does not vibrate:
Check whether the power circuit of the solenoid valve is broken or the solenoid coil is damaged.
Check whether the reversing valve is stuck by mechanical impurities, causing the pressure oil circuit of the hydraulic motor to be unable to connect.
2. The vibration intensity of the vibration wheel is low:
Check the leakage of the hydraulic pump, the size of the mechanical friction force, and the leakage and blockage of the transmission pipeline.
Check whether the volumetric efficiency, mechanical friction resistance and back pressure of the hydraulic motor are normal.
3. The hydraulic motor is out of control:
Check whether the solenoid valve circuit of the hydraulic motor is normal, and ensure that the motor can stop working after cutting off the circuit.
IV. Maintenance suggestions
1. Regularly replace the hydraulic oil and filter element: Regular replacement of hydraulic oil and filter element can effectively prevent hydraulic system pollution and extend the service life of the system.
2. Use genuine hydraulic oil and accessories: Inferior hydraulic oil and accessories may cause hydraulic system failure. Be sure to use the model recommended by the manufacturer.
3. Avoid overload operation: Long-term overload operation will increase the burden on the hydraulic system, causing system overheating and failure.
