FIELD MAINTENANCE INSTRUCTIONS-THIRD ECHELON
Section I. GENERAL
oughly clean the surface and repaint. See TM 9-213 for
general instructions for cleaning and methods of
No special tools are required for third echelon
Surfaces to be protected with paint and
maintenance of the power driven, reciprocating air
primers are indicated in the maintenance instructions.
b. Paints to Be Used.
Prime all worn, scratched or
8. Special Equipment
chipped surfaces of steel components only,
No special equipment is required for the third
with one coat of corrosion resisting
echelon maintenance of the air compressor.
(2) Exterior enamel.
Repaint all worn,
a. General. Field maintenance personnel are
scratched or chipped painted surfaces with
authorized to retouch the paint on the air compressor
two coats of green synthetic lustreless
assembly when the paint is damaged or removed during
repair. When necessary, thor
Section II. WATER SEPARATOR GROUP
locknut, outlet valve, relief- valve, and hardware, as
The water separator group (fig. 2) is located on the
frame assembly of the air compressor and is held in
place by a clamp. An inlet elbow, an outlet plug, and a
(1) Open the needle valve (5, fig. 2) and drain
needle valve are attached to the water separator. The
the water separator (1).
needle valve is used to drain the collected moisture from
(2) Loosen the inlet connection on the
the water separator.
The water separator group
aftercooler (6, fig. 9), from the elbow (12,
consists of the water separator, a relief valve, and the
(3) Unscrew the fitting (6, fig.
needle valve (5).
The water separator separates the entrained
(4) Loosen the nut (4) and remove the needle
moisture from the high pressure compressed air.
valve from the water separator.
addition, the water separator permits drainage of
(5) Remove the washer (3) and nut (4) from
collected moisture and dampens the pulsation of the air
the needle valve.
delivered to the tank or cylinder being charged.
(6) Open the clamp (2) and remove the water
separator and clamp from the frame.
Third echelon maintenance personel are authorized
to replace the needle valve, clamp, preformed packings,
(1) Unscrew the relief valve (2) from the water
packing retainer, tube fitting
separator cap (6). Remove the preformed
packing (3) from the relief valve.