1. OBJECTIVE             

1.1       To lay down a procedure for Preventive Maintenance of Fluid Bed Drier-20Kgs, 120Kgs.

2. RESPONSIBILITY                                                  

• Assistant – Engineering       – To follow the SOP

• Executive – Engineering       – To Comply the SOP

3. PROCEDURE           

• Weekly Maintenance

• Check the pneumatic cylinders and solenoid valves for proper working condition.

• Check earthing bracket plungers for proper working, if required lubricate the plungers.

• Check the product bowl trolley castor wheels for free movement, if required lubricate the wheel bearings.

• Check the scrubber unit solenoid valves for proper working.

• Monthly Maintenance

• Check steam control valves and actuators for proper working ensure that no steam leak will be there in the lines and at actuators.

• Check the filter bag-shaking cylinder, if required adjust the cylinder for proper function.

• Check the pneumatic lines and cylinders for leakages, if found arrest the leaks.

• Check the air pressure of the upper seal, if required adjust the pressure regulator and switch.

• Clean the scrubber unit filter bags with water and dry with air, clean the collection container.

• Check for the damper actuating pneumatic cylinder ‘O’ ring and replace if necessary.

• Clean the inlet & outlet air handling unit pre-filters.

• Check the inter locks are working properly.

• Check the pneumatic valves and pressure switches for proper working condition.

• Yearly Maintenance

• Check the steam coil for leakages if found any arrest them or replace the steam coil.

• Check the blower motor and impeller housing bearings for abnormality, if found replace the bearings, and check the impeller balancing.

• Check the system filters and pre-filters, if required replace with new filters.

• Check the exhaust module HEPA filter, if found any damage repair it or replace with new filter.

• Check the upper seal and lower seals condition, if required replace with new seals.

• Check the castor wheels condition, if required replace with new wheels.

4. ABBREVIATIONS

• HEPA : HIGH EFFICIENCY PERTICULATE AIR

5. REFERENCES

         Nil      

6. ANNEXURES

• Annexure-1     Weekly preventive maintenance checklist
• Annexure-2     Monthly preventive maintenance checklist.
• Annexure-3     Yearly preventive maintenance checklist.

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