TM 55-1930-209-14&P-7
Table 1-1. Compressed Air System Major Components
Component
Location and Function
Electric Controller
ROWPU space port bulkhead near compressor. Starts, stops, and provides
automatic compressor operation.
Compressor w/ Receiver
ROWPU space portside aft. Compresses air to 155 psi and stores it in an 80-
gallon receiver.
Automatic Air Pressure
On top of receiver. When compressor controller is in AUTO, this
Regulator (Pressure Switch)
mechanism turns compressor on and off to maintain pressure in receiver within
factory set limits.
Receiver Pressure Gauge
Mounted on side of receiver. Indicates air pressure in receiver.
Receiver Safety Valve
Mounted on top of receiver. Factory set to relieve air pressure in receiver if it
exceeds 175 psi.
Receiver Drain Cock
On bottom of receiver. Provides opening for relieving air pressure in receiver.
Drains moisture from receiver.
Main Supply Valve
Forward end of receiver. Controls flow of compressed air to air supply lines.
Isolates receiver from lines.
Air Filter 1
In air supply pipe near compressor. Removes particles and moisture from air
passing from receiver to air supply lines.
Air Filter 2
In air supply line immediately in front of air station 6 Removes oil and particles
from line to air station 6 to preclude contamination of drinking water shore
discharge hose.
Air Pressure Regulator 1
Workshop port bulkhead. Reduces air pressure to 40 psi for
with Air Pressure Gauge
blowdown of seachest in void port 2. Indicates air pressure in line beyond
regulator.
Air Pressure Regulator 2
ROWPU space aft bulkhead behind void 4 air ducts Reduces air
with Air Pressure Gauge
pressure to 40 psi for blowdown of seachest in void 4 port. Indicates air pressure
in line beyond regulator.
Air Station 1
ROWPU space port bulkhead near air compressor. Provides air to quick
disconnect coupling for pneumatic equipment.
Air Station 2
ROWPU space port bulkhead amidships. Same function as Air Station 1.
Air Station 3
Workshop port bulkhead Same function as Air Station 1.
Air Station 4
ROWPU space starboard bulkhead forward. Same function as Air Station 1.
Air Station 5
ROWPU space starboard bulkhead aft of sliding door. Same function as Air
Station 1.
Air Station 6
Weatherdeck stern portside. Provides 155 psi to quick disconnect exclusively for
powering PIG through shore discharge hose.
Air Station 7
ROWPU space port bulkhead aft of switchboard. Same function as Air Station 1.
1-7
