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 air
s 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 o
medium-pressure systems are the same as the LP and
HIGH-PRESSURE SYSTEMS
These systems provide compressed air within the
range of 1,000 to 6,000 psig pressure. Hazards that
increase with higher pressures and capacities can be
HP air systems. Those medium-pressure air systems
equipped with air compressors should have a separate
preventive maintenance schedule.
minimized by using separate compressors for each
required pressure. Systems operating at 3,000 psig may
6-4
