Attachment B.pdf

ATTACHMENT “B” MAINTENANCE FOR MEDICAL AIR SYSTEMS

Daily:

• Read compressor discharge pressure gages and record on log. Repair compressors or pressure switch if abnormal pressure conditions are detected.

• Check that pressure switches operate within desired limit and readjust, as necessary.

• Check for proper alteration of compressors by the control system.

• Check belts for proper tension and slippage, Adjust, as required.

• Check compressor for excessive start/stop cycling and adjust or repair, as required.

• Check compressor for excessive noise, heat, or vibration from the compressors and motors, repair accordingly.

• Check receiver for excessive accumulation of moisture. Drain air receiver.

• Drain reservoirs and verify that automatic traps are working properly.

• Check for pressure drop across air filters and replace or clean, as necessary.

• Read inlet and outlet pressures of pressure regulator. Fix or adjust regulator, as necessary, if pressures are above or below the normal operating range.

• Record desiccant air dryer gages on daily log and fix or repair desiccant air dryer if readings are abnormal.

• Check desiccant air dryer for proper operating/cycling and fix or repair air dryer if not working within normal operating modes.

• Record refrigerant air dryer gages on daily log and fix or repair air dryer if readings are abnormal.

• Check compressors, receivers, desiccant air dryers, refrigerated air dryer, air filters, air regulators and piping for audible leaks. Repair, as required.

• Read air pressure gages at all alarm panel locations and record on daily log. Investigate and repair any line pressure variations from the normal operating range.

• Check Dental air compressor operation. Inspect moisture monitor.

• If a repair or replacement is required, unless nominal, please submit a detailed cost estimate to the Contracting Officers Representative for approval prior to executing repair or replacement.

Monthly:

• Check belts for misalignment, tightness, excess wear. Replace or adjust, as necessary.

• Check pulley and pulley clamp screws for tightness. Replace or adjust, as necessary.

• Check for clogging of strainer and clean as necessary.

• Check operation of high temperature shutdown. Adjust or repair, as necessary.

• Inspect, check valves for free operation, excessive wear and clogging. Overhaul check valves if contamination, binding, or wear are detected.

• Verify that the compressor is running at the correct rpm or amperage and adjust, as necessary.

• Verify the operation of safety valves.

• Clean or replace intake filter, as necessary.

• Clean compressor and cooling fins, as necessary.

• Blow and clean the condenser of the refrigerated air dryer to remove any accumulated dust using compressed air.

• Check and inspect unloaded solenoid valve.

• If a repair or replacement is required, unless nominal, please submit a detailed cost estimate to the Contracting Officers Representative for approval prior to executing repair or replacement.

Quarterly:

• Recheck the location of the air intake to assure that if continues to be a satisfactory source of medical compressed air.

• Check refrigerant charge of refrigerated air dryer and replenish as necessary. Record on log if refrigerant has been added.

Semi-Annually:

• Check compressor bearings for wear. Lubricate or replace, as necessary.

• Check motor bearings for wear. Lubricate or replace, as necessary.

Annually:

• Lubricate compressor bearings.

• Lubricate motor bearings.

• Test operation of the pressure high/low and pressure switch for the medical air piping system by raising and lowering the system pressure with the regulators.

• Test operation of Carbon Monoxide High and Dew Point High.

• Test operation of Medical Air Compressor Malfunction.

• Test operation of Desiccant Dryer Malfunction.

• Test operation of Discharge High Air Temperature.

• Check intake filters for Dental air compressor. Clean or replace as required.

• Change/replace intake filters for dental air compressor.

• Perform inspection and calibration of medical air regulators. Work shall include unit inspection, calibration and any replacement of parts to keep equipment in optimal operating condition. Inspection/calibration stickers are required on each individual unit and are to include date of inspection/calibration and next due date.

• Replace the cartridge for the Amalgam Separator as needed, by due date. Place new due date sticker.