Compressed Air System General
Information
The compressed air system normally consists of a gear
driven air compressor, an air governor, air tanks and all
necessary plumbing.
The Holset and Cummins single and two cylinder air
compressors are engine-driven piston-type compressors
which supply compressed air to operate air activated
devices. The compressor runs continuously but has a
loaded and unloaded operating mode.
The operating mode is controlled by a pressure-activated
governor and the compressor unloading assembly. When
the air system reaches a predetermined pressure, the
governor applies an air signal to the air compressor
unloader assembly causing the unloader valve to hold the
compressor intake valve open and compressed air stops
flowing into the air system.
As the air in the air system is used, the pressure drops.
At a predetermined pressure the governor exhausts the
air signal to the compressor unloader assembly allowing
the compressor to again pump compressed air into the air
system.
E-Type Air Compressor
Air compressors built with the E-Type unloader can be
identified by the letter ‘‘E’’ (SS296E), and by the caution
on the dataplate.
Compressed Air System General Information Section 4 - Compressed Air System
N14Page 4-2
To Next Page
Loading...
