1
Cooler group
4
Frame-fuel tank group
2
Compressor group
5
Canvas group
3
Engine group
6
Water separator group
7 Fan group
Figure 1. AN-M4 3 1/2 CFM Compressor.
Lubricating oil MIL-L-6085
(1)
Compressor Specifications.
Sump capacity (oil) ...................................350 cc.
Length, overall ........................................... 22 in.
(3)
Moisture separator.
Width, overall ............................................ 17 1in.
Operating pressure .............................2,000 p.s.i.
Height, overall ............................................ 18 in.
Proof pressure ....................................3,000 p.s.i.
Weight, dry (less cover and......................... 68 lb.
Minimum burst pressure .....................5,000 p.s.i.
charging hose).
(with relief valve removed).
Minimum accumulated water ................ 9% cu in.
(2)
Compressor.
capacity.
Type ................................... Radial, reciprocating
Temperature range .................+32 F to + 160' F.
Stages ................................................................ 3
Relief valve ......... Relieves and passes 3.0 c.f.m.
Cylinders ............................................................ 3
air at 2,350 p.s.i.g (max.)
Second stage relief valve.
Bore:
(4)
1st stage................................................ 2.625 in.
Type ............................................... Spring loaded
2nd stage................................................ 1.250 in.
Relieving pressure ............................2,350 p.s.i.g
3rd stage ................................................ 0.625 in.
(max.)
Stroke ............................................................ 4 in.
Reseating pressure..........................1,950 p.s.i.g.
Rotation (facing fan end) .............................c.c.w.
(5)
Engine.
Speed (max.).....................................3,750 r.p.m.
Type ...........................................4-cycle, gasoline
Operating pressure ............................... 2,000 psi
overhead valve, air cooled
Capacity (air delivery) ............................3% c.f.m.
Model ........................................................1A08-2
Temperature range ................................... --45 F
Make .............................. Military standard engine
to +-130 F.
Lubrication ...........................................Force feed
AGO 48SA
3
