Figure 6-4.—A maintenance Index page for low-pressure air compressor systems (page 3 of 3).manifold. In this case, medium-air pressure main-tenance requirements are coupled with the HP airs y s t e m ’ s P M S . T r o u b l e s a n d r e p a i r s t omedium-pressure systems are the same as the LP andHIGH-PRESSURE SYSTEMSThese systems provide compressed air within therange of 1,000 to 6,000 psig pressure. Hazards thatincrease with higher pressures and capacities can beHP air systems. Those medium-pressure air systemsequipped with air compressors should have a separatepreventive maintenance schedule.minimized by using separate compressors for eachrequired pressure. Systems operating at 3,000 psig may6-4
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