sop for Preventive Maintenance of laminar air flow unit
To lay down a procedure for Preventive Maintenance of laminar air flow unit.
This Standard Operating Procedure is applicable for Preventive Maintenance of laminar air flow units to be followed at formulation plants
3.1 Officer / Executive Engineering shall be responsible for the execution of this procedure.
3.2 Engineering Manager shall be responsible for the implementation of this SOP.
3.3 Head QA/designee shall be responsible for the compliance of this SOP.
4.0 Abbreviations and Definitions
SOP : Standard Operating Procedure etc
No : Number
QA : Quality Assurance
Qty : Quantity
ER : Engineering
5.1 General conditions:
5.1.1 Refer the master plan of Preventive Maintenance.
5.1.2 Equipment shall be available for Preventive Maintenance.
5.1.3 Clean oil / grease stains & remove unwanted material, spares after completion of Work.
5.2.1 Use necessary safety wears, while doing the work.
5.2.2 Ensure covers & guards are properly fixed.
5.3 Procedure for preventive maintenance of laminar air flow unit.
5.3.1 Ensure that electrical supply is in off position in main panel and display “Under Maintenance” Board on the panel board.
5.3.2 Switch OFF the drive unit and inform all the concerned.
5.3.3 Operator or above has to ensure and verify the check points for the Preventive Maintenance as shown in the Annexure 1.
5.3.4 After the completion of preventive maintenance, check the machine for smooth operation.
5.3.5 Remove “Under Maintenance” Board on the panel board after completion of the maintenance.
5.3.6 The operator / technician who perform the job will enter his name / sign in “Done By” column and responsible Engineer/ Officer will put sign in “Checked by” column Department Head will review the record every month.
5.3.7 Quarterly Preventive Maintenance is to be carried out as per the following check Points.
188.8.131.52 Check the impeller of the blower for free movements.
184.108.40.206 Check and clean the nozzles of the magnehaulic gauge tube.
220.127.116.11 Check for the air leakages through the LAF surfaces.
18.104.22.168 Check the Blower motor bearings, if required replace / lubricate with grease.
22.214.171.124 Check the proper earthing
126.96.36.199 Check all electrical points of main panel board for any loose connections & tighten up accordingly.
6.0 Forms and Records
6.1 Quarterly Preventive Maintenance Check List of Laminar Air Flow Unit-Annexure-1
7.1 Master copy – Documentation Cell (Quality Assurance)
7.2 Controlled copies – Engineering Department