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9.0
ROUTINE MAINTENANCE SCHEDULE
Daily
1.
2. Check for air and nitrogen leaks. Tighten or re-tape fittings as necessary.
3. Check that the Membrane Inlet pressure is as established upon setup of the equipment
4. Check that the inlet air temperature is less than 105
°
F and pre-cool if necessary.
5. Check that hour meter (if equipped) is operative.
Weekly
1. Clean unit as necessary.
2. Check that the differential pressure on the filtration system does not exceed 10 PSID. The filter
elements need to be replaced when differential pressure reaches 10 PSID.
Every three months
1. Check operation of all safety relief valves
2. Calibrate oxygen sensor (if equipped) See section 6.4
Annually or longer intervals
1. Replace all filter elements on the unit at 8000 hours. If the unit is equipped with differential
pressure switch/gauge, the filter elements should be changed at 10 PSID.
2. Change the carbon in the carbon adsorber bed. Units with a functioning hourmeter can run for
8000 hours before changing carbon.
3. Every three - five years, return oxygen analyzer for factory sensor replacement and re-calibration.
Summary of Contents for PMNG Series
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