LO auto backwash filter

Lube Oil auto backwash filter used to discharge sludge from filter automatically at a certain time interval.
Main Components 
  1. Filter Candle
  2. Candle housing
  3. Candle cover
  4. Pressure valve
  5. Servo motor
  6. Gear arrangement
  7. Cylinder barrel
  8. Solenoid valve
  9. Compressed air bottle
  10. Pressure gauge
    How it works?  
    Lube oil entered in the filter candle,the impurities are filtrate and settle down. After a certain time interval the solenoid valve open the port for compressed air enter to the cylinder chamber to force the barrel backward,so that all the sludge discharged.After the sludge discharged solenoid valve allow the other port for compressed air to enter in the cylinder to force the barrel forward so that discharge port get closed.Every time only one unit of filters sludge get discharged.Servo motor at the top of the filter allow to rotate the discharge port of every single unit through a gear arrangement.The air entered in the filter to force the sludge get stacked with filter outward and release toward the head of the candle set cover.There is a valve arrangement for air release.Filtrated lube oil flow through engine or duplex filter(in some cases) through outlet pipe.  
  1. Auto backwash filter get jammed
  2. Trouble in automatic sludge discharge
  3. Trouble in manual sludge discharge
  4. Gear teeth brake down 
          Possible Causes
  1. Low quality lube oil
  2. Lube oil contaminated with dust or carbon diposits
  3. 'O 'ring damage in cylinder barrel
  4. Faulty solenoid valve
  5. Corrosion in gear teeth 
  1. Clean all the filters with proper cleaning agent(generally diesel and compressed air)
  2. Check the 'O' rings and change if needed
  3. Check the solenoid valve and change if needed
  4. Check all the compressed air line

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