Why is it necessary to maintain the hydraulic cylinder of a seeder

hydraulic cylinders for seeders

Proper care and maintenance can reduce the failure rate and extend the service life of hydraulic cylinders for seeders. The following is a summary of maintenance methods:

1. Fluid management and oil maintenance

(1) Regular replacement of hydraulic oil

Replace the hydraulic oil according to the cycle specified in the equipment manual, and it is recommended that the hydraulic oil be adjusted every 1,000-1,500 hours of operation or according to the results of oil quality testing. Hydraulic oil deterioration is manifested as black color, turbidity or burnt smell, need to be replaced in time.

Add new oil need to use filtration equipment to ensure that the oil is free of impurities; at the same time, regular cleaning or replacement of filters to prevent clogging caused by the oil circuit is not smooth.

(2) Control oil temperature and cleanliness

Oil temperature should be maintained between 30-60 ℃, high temperature will accelerate the oxidation of oil and seal aging. Temperature can be controlled by cooling devices (e.g. cooler, fan) or optimized system design.

Use a multi-stage filtration system (suction, high pressure and return filters) to protect the hydraulic components and avoid impurities from entering the cylinder to trigger wear.

2. Inspection and maintenance of key components

(1) Cylinder block and piston rod inspection

Regularly check the surface of the cylinder block for cracks and the piston rod for wear or scratches. Minor damages can be repaired by grinding, but in serious cases, parts need to be replaced.

The outer surface of the piston rod needs to be protected to avoid bumping, and clean up the mud and sand at the dust ring to prevent pollutants from entering the cylinder 368.

(2) Seal maintenance

Seals are the key to prevent leakage and need to be checked regularly for wear and tear. External leakage is mostly caused by damage to the piston rod seal, and internal leakage is related to the piston seal. Aging, cracking or deformation is found to be replaced immediately.

It is recommended to replace the seals once every 6000 working hours, and shorten the period under long-term high temperature environment.

(3) Connectors and lubrication

Check whether the bolts, nuts and other connecting parts are loose.

Lubricate the friction parts such as piston rod and guide rail to prevent corrosion or abnormal wear.

3. Preparation and daily operation specification before operation

(1) Trial run exhaust

Before startup, no-load test run is required to exhaust the air in the system and preheat the oil circuit to avoid gas explosion or seal damage.

Before running with load, it is necessary to make sure the system pressure is stable to avoid excessive wear of seals due to high back pressure.

4. Failure prevention and monitoring

(1) Pressure and speed monitoring

Observe whether the system pressure is stable through the pressure gauge, abnormal fluctuations may indicate leakage or component failure.

Monitor the speed of piston movement, uneven speed may be caused by insufficient flow or spool stagnation.

(2) Regular maintenance and record

Record oil replacement, seal replacement and troubleshooting, easy to trace and analyze.

The maintenance and repair of hydraulic cylinders for seeders.is a systematic project, which requires the construction of a preventive maintenance system. Through the implementation of refined routine maintenance, can significantly improve the reliability of equipment operation. Create significant economic benefits for the enterprise.

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