1. OBJECTIVE             

1.1       To lay down the procedure for Preventive Maintenance of Multi Mill.

2. RESPONSIBILITY                                                  

• Assistant – Engineering       – To follow the SOP

• Executive – Engineering       – To Comply the SOP

3. PROCEDURE           

• Monthly Maintenance

• Check all the fastenings of the unit, if required tight all the fastenings.

• Check the miller shaft roller bearings, if required clean the bearings and lubricate them.

• Ensure that the unit is working in forward and reverse directions.

• Check electrical lines, starter contactors, if necessary clean with CTC.

• Check the caster wheels for free movement, if required lubricate the wheel bearings.

• Half Yearly Maintenance

• Check for the condition of belts, if the unit is belt drive and replace the belts if required.

• Check for the condition of coupling spider, if the unit is coupling drive and replace the spider if damaged.

• Check for the condition of Teflon gland packing / Mechanical seal, if necessary replace it.      
• Check all the bearings of the unit and if required replace them with new bearings.

• Check the motor winding resistance and AMPS condition should be with in the limits.

• Check for proper earthing to the equipment.

4.      ABBREVIATIONS

       CTC : CARBON TETRA CHLORIDE

5.      REFERENCES

           Nil       

6. ANNEXURES

•  Annexure-1     Monthly preventive maintenance checklist
• Annexure-2     Half-Yearly preventive maintenance checklist.

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