To describe a standard operating procedure for break down rectification of sampling booth.
1.0 PURPOSE:
To describe a standard operating procedure for break down rectification of sampling booth.
2.0 SCOPE:
The SOP describes in detail the method of break down rectification of sampling booth.
3.0 RESPONSIBILITY:
The responsibility of break down rectification of sampling booth lies with the staff of rank not lower than Maintenance Engineer.
The responsibility of preparing, reviewing and approving the standard operating procedure lies with the Manager - Maintenance, Head of Production and Head of QAD respectively.
4.0 METHOD:
4.1 Possible problems and rectification:
4.1.1 Low down flow air velocity:
4.1.1.1 Chocking of prefilters:
4.1.1 1.1 Remove prefilter grills.
4.1.1.1.2 Remove prefilters.
4.1.1.1.3 Check integrity of media. If found damaged, replace the prefilter.
4.1.1.1.4 Check dust contamination. If found dusty, wash with water and soap solution and blow compressed air to dry.
4.1.2 Leakage of air through covers.
4.1.2.1 Tighten the bolts/nuts for covers if necessary replace the gasket.
4.1.3 Low front opening velocity.
4.1.3.1 Damper opening is improper.
4.1.3.2 Adjust the exhaust damper to increase the velocity.
4.1.4 Exhaust HEPA filters choked.
4.1.4.1 Remove access cover for HEPA filter.
4.1.4.2 Observe the seat of the HEPA filter.
4.1.4.3 Tighten the filter clamps.
4.1.4.4 In case the filter is to be replaced.
4.1.4.4.1 Loosen the filter clamps.
4.1.4.4.2 Remove the filters.
4.1.4.4.3 Clean the filter mounting frame and grill.
4.1.4.4.4 Place the new hepa filter and tighten the clamps. Fix up the cover. Ensure that the gasket for cover is intact.
4.1.5 Tube lights not working.
4.1.5.1 Tube burnt out
4.1.5.1.1 Replace with similar standard tube light.
4.1.5.2 Loose connections.
4.1.5.2.1 Check and rectify the connections.
4.1.5.3 Faulty switch.
4.1.5.3.1 Replace with similar standard switch.
4.1.5.4 Faulty starter / choke.
4.1.5.4.1 Replace with similar standard starter/choke.
4.1.6 Manometer not showing zero when cabinet is OFF.
4.1.6.1 Scale disturbed.
4.1.6.1.1 Adjust the scale when unit is not working.If zero is out of scale adjustment,add manometer liquid to adjust zero.
4.1.7 Excessive noise and vibrations.
4.1.7.1 Blower assembly hardware loosened.
4.1.7.1.1 Tighten the hard ware.
4.1.7.2 Dry motor bearings
4.1.7.2.1 Add oil to motor bearings.
4.1.7.3 Loose impellers.
4.1.7.3.1 Tighten the grub screws of impellers.
5.0 RECORDING:
The responsibility of recording the break down rectification details in the histry card lies with the staff of rank not lower than the chargeman.
Break down, rectification of sampling booth, engineering
