Preventive Maintenance Of Instrument

1.0 OBJECTIVE:

To lay down a procedure for the Preventive Maintenance of Instruments.

2.0 SCOPE:

This SOP is applicable for preventive maintenance of Laboratory Instrument (other than HPLC) in Q.C, Pharmaceutical Manufacturing.

3.0 RESPONSIBILITY:

3.1 Officer/Executive-Quality Control.

4.0 ACCOUNTABILITY:

4.1 Manager-Quality Control.

4.2 Head of the Q.C Department.

5.0 PROCEDURE:

5.1 General Precaution/ Safety:

5.1.1 Switch OFF the instrument before the starting of preventive maintenance.

5.1.2 After preventive maintenance is over, switch ON the instrument and check the voltage supply.

5.2 Analytical Balance:

5.2.1 Clean the weighing pan with the help of lint free cloth.

5.2.2 Check the door for free movement. Clean the door path, if required with the help of lint free cloth soaked in Methanol and wipe immediately with the help of dry lint free cloth.

5.2.3 Open the cover of the equipment and check all the connector and rectify any loose contact if observed. Clean the PCB with vacuum cleaner and lint free cloth soaked in carbon chloride. Check the voltage on power supply card. Remove all the dust from the instrument using vacuum cleaner. Close the cover of the equipment and ensure proper leveling of the equipment.

5.2.4 Close the cover of the instrument and check proper start up of the instrument.

5.3 UV/VIS Spectrophotometer:

5.3.1 Open the cover of the instrument and clean the instrument with the help of lint free cloth soaked in Methanol. Isopropyl alcohol and wipe immediately with dry lint free cloth and clean all PCBs with the help of vacuum cleaner. Check all the connector for proper contact and rectify any loose connection if observed. Check the voltage on power supply card.

5.3.2 Clean the sample compartment with the help of lint free cloth.

5.3.3 Check the UV and tungsten lamp for ignition.

5.3.4 Check and clean the optical system.

5.3.5 Check the filter wheel and it drive mechanism for jerk free operation and rectify it if required.

5.3.6 Close the cover of the instrument.

5.4 Fourier Transform Infrared Spectrophotometer (FTIR):

5.4.1 Open the cover of the instrument. Clean the instrument with the help of lint free cloth soaked in Methanol/ Isopropyl alcohol and wipe immediately with dry lint free cloth.

5.4.2 Check all wiring connection. Check all the connector and rectify loose connection if observed.

5.4.3 Clean the PCBs with the help of vacuum cleaner. Check reference voltage on the power supply card. Check and clean the optical supply.

5.4.4 Clean the fan inside the cabinet with free cloths.

5.4.5 Clean sample compartment with dry lint free cloth.

5.4.6 Close the cover of the instrument and check proper start up of the instrument.

5.5 Polarimeter:

5.5.1 Clean the instrument with the help of lint free cloth soaked in Methanol/ Isopropyl alcohol and wipe immediately with dry lint free cloth.

5.5.2 Open the cover of the instrument. Clean the sample compartment with lint free cloth. Check all the reference voltage on power board. Check all the connector and rectify any loose connection if observed.

5.5.3 Check and clean the cabinet fans.

5.5.4 Check the cover of the instrument and check for proper startup of the instrument.

5.6 Melting Point Apparatus:

5.6.1 Clean the instrument with the help of lint free cloth wipe immediately with dry lint free cloth.

5.6.2 Check and clean PCB. Check all the connector and rectify any loose connection if observed.

5.6.3 Check and clean measuring slots in cell interior.

5.7 Auto titrator:

5.7.1 Clean the instrument with the help of lint free cloth soaked in 2.5% Dettol solution and wipe immediately with dry lint free cloth.

5.7.2 Check all the fitting tubes. Check all the connector and rectify any loose connection if observed.

5.7.3 Check the burette movement.

5.7.4 Check stirrer motor for proper operation.

5.8 Leak Test Apparatus:

5.8.1 Clean the instrument with the help of lint free cloth soaked in Methanol/ Isopropyl alcohol and wipe immediately with dry lint free cloth.

5.8.2 Check the leveling leg screw of the equipment and ensure leveling of the instrument.

5.8.3 Check and ensure proper spindle mounting.

5.8.4 Check and ensure proper operation of speed adjusting knob.

5.9 Vacuum Oven:

5.9.1 Clean the instrument with the help of lint free cloth soaked in Methanol/ Isopropyl alcohol and wipe immediately with dry lint free cloth.

5.9.2 Check the door for proper closing and sealing. Check the gasket of the door.

5.9.3 Check the vacuum pump and replace the oil, if required. Check the vacuum tubing.

5.9.4 Check the heater connection and ensure proper working of thermostat/ temperature controller.

5.10 Autoclave:

5.10.1 Clean the instrument with the help of lint free cloth soaked in Methanol/ Isopropyl alcohol and wipe immediately with dry lint free cloth.

5.10.2 Check wiring connection. Check and ensure proper sequencing of input/output of the PLC. Check the safe line of the instrument.

5.10.3 Check the door for proper closing and inter locking. Check the gasket of the doors.

5.10.4 Check the boiler heater. Check safety valve of the boiler.

5.10.5 Check vacuum pump and rectify any leakage if required.

5.11 General Procedure:

5.11.1 Record the observation preventive maintenance log (Reference annexure-1).

5.11.2 Inform the discretion observed, if any, to Q.C-Manager.

5.11.3 Preventive maintenance shall be performed at every three month ±15 days.

6.0 REVISION LOG:

Revision No.	Effective Date	Reason
00		New SOP

7.0 REFERENCES:

7.1 Not Applicable.

8.0 ANNEXURES:

Annexure 1: Preventive Maintenance Log.

Annexure: 1

Preventive Maintenance Log

Format No.: ________________

PREVENTIVE MAINTENANCE SCHEDULE CUM REPORT Instrument: ___________________ Instrument No.: ________________ Frequency: Quarterly.
Sr. #	Check point	Preventive maintenance schedule cum report



Preventive Maintenance Done on
Signature/Done by
Remarks
Next due on
Checked by

9.0 ABBREVIATIONS:

Abbreviation	Expanded Form
S	Standard operating procedure
&	And
%	percentage
HPLC	High performance liquid chromatography
PBC	Printed circuit board
UV/VIS	Ultra violet/ visible
FTIR	Fourier Transform Infrared Spectrophotometer
%	Percentage