TM 5-4310-379-14
d.
Portable Air Reliever.
Volume .............................................................
60 gal.
Height ...............................................................
41.5 in. (105.5 cm)
Width ................................................................
21 in. (53.3 cm)
Length ..............................................................
54 in. (136.1 cm)
Weight ..............................................................
130 lbs (286 kg)
e.
Air Receiver.
Volume .............................................................
30 gal.
1-10.
Safety, Care, and Handling. When operating or doing maintenance on Diving Air Compressor take necessary
precautions to ensure the safety of others as well as yourself. Avoid careless operating or maintenance habits which
cause accidents to personnel and damage to the equipment. Observe all WARNING's, CAUTION's and NOTE's in this
manual. This equipment can be extremely dangerous if these instructions are not followed.
Section III. TECHNICAL PRINCIPLES OF OPERATION
Paragraph
Page
1-11
General ........................................................................................................................
1-5
1-12
Detailed Principles of Operation, Diesel Engine ...........................................................
1-7
1-13
Detailed Principles of Operation, Air Compressor .........................................................
1-9
1-14
Detailed Principles of Operation, Air Filtration System ..................................................
1-11
1-15
Detailed Principles of Operation, Portable Air Receiver ...............................................
1-11
1-11.
Technical Principles of Operation.
a.
General. Figure 1-3 provides a block diagram of the Diving Air Compressor. The Diving Air Compressor
provides medium pressure air at about 200 psi. The diesel engine is electrically started by a 12-volt battery, mounted on
frame assembly. Air for combustion of the fuel enters through an oil bath air cleaner which filters the air. The diesel
engine is water cooled by a radiator. Coolant is circulated through the engine by hoses connected to a water pump
mounted on the diesel engine. The compressor is air cooled by means of a fan mounted in the front of the unit. Fuel for
combustion is drawn into the engine from a fuel tank. The internal moving parts of the engine are lubricated by a rotor-
type pump which draws oil from the oil pan. The oil passes through gallery passages in the block, through the filter to the
cooler. Exhaust gases are expelled from the engine through the exhaust manifold and out of the muffler exhaust pipe.
The engine is equipped with a direct drive power take-off which is controlled by a clutch mechanism. A hand lever is
used to engage or disengage the clutch. When the clutch is engaged, with the engine running, power is transferred from
the engine to the compressor, through a pulley and fan belt arrangement. When the compressor is operating, ambient
air is taken in through two filters into the compressor. Air in the compressor is compressed to 200 psig and routed to the
receiver. The compressed air is then supplied to portable filtration system where it is filtered. After being filtered, the
compressed air is then delivered to a portable air receiver, where up to three divers can be supported.
1-5
