SOP For Preventive Maintenance of Air Curtains


To describe a procedure for the preventive maintenance of Air Curtains

  • SCOPE:

This SOP is applicable for preventive maintenance of Air Curtains


      Assistant Engineer/Above shall be responsible for implementation and compliance of the SOP.


Manager-Engineering / Manager-Production / Head-QA shall be accountable for implementation and compliance the procedure mentioned in this SOP.


             Preventive maintenance checklist of Air Curtains                                  – Attachment -I

    • Preparation of preventive maintenance plan:
      • Inform the concern person before starting preventive maintenance.
      • Ensure that no activities are carried out in the respective machine.
      • Ensure that the respective system electrical supply is switched “OFF”
      • Before carrying out the preventive maintenance display status board as “UNDER PREVENTIVE MAINTENANCE” on the electrical panel and machine.
      • Half-Yearly

6.3.1   Check all electrical terminals of main supply and tight them.

6.3.2   Check blower alignment by rotating manually.

6.3.3   Check Motor bearings for any wear and tear, lubricate them

6.3.4   Check all interlocks for Proper working.

6.3.5   Check motor and blower shaft.

6.3.6   Check door sensor for proper working.

  • Check door opening and closing properly.
  • Start and run the machine in Auto/Manual mode.

6.3.9     Check and observe the machine for its normal working.

  • After completion of the above procedure remove the “UNDER PREVENTIVE MAINTENANCE” status board from the machine and the respective electrical panel.
  • Affix the Preventive Maintenance Status on machine as per Attachment – I
  • Update the status label of the machine after the completion of preventive maintenance.
  • After performing the preventive maintenance activity of machine, respective area supervisor shall check and note the details on respective Equipment Sequential Log Book.

6.8       Junior Engineer/ above shall record the activity in respective attachment of SOP for Maintenance of

            Air Curtains




SOP:  Standard Operating Procedure

Engg: Engineering




Quality Assurance


Version No. Effective Date Reason for Revision