d. Use of Air Chuck.
(1) Remove the air chuck and pressure
a. With the pumps operating, open the con-
gage from the lower drawer assembly.
densate valve (48, fig. 2-3) by turning the
(2) Attach the air pressure gage and air
valve lever in a counterclockwise direction.
chuck to the air line coupler (43, fig. 2-3).
Exhausting air will carry accumulated
(8) Press the air chuck down firmly on the
moisture from it.
tire valve and depress valve lever to force air
b. Stop the engine.
into the inner tube. When the proper pressure
has been reached, release lever and lift the
c. Close the master air valve (50).
air chuck off.
d. Open the air tank drain valve (44) to
(4) After air service operations have been
drain moisture from the compressor air re-
performed, rewind the air reel hose on reel
ceiver.
(87), disconnect the air pressure gauge and air
chuck from the air line coupler.
2-18. Operation in Extreme Cold
(5) Lock the reel brake and replace the
Operating the lubricating and
a. General.
air chuck and pressure gage in the upper
servicing unit in extremely cold temperatures
drawer assembly.
presents special problems. Lubrication, fuel,
Warning: When inflating tires, stand to
oil, electrical and compressed air systems, and
one side of the tire, not in front of it. Serious
care of lubricants are all affected by cold
injury or death could result if the tire blows
weather operation.
off' the rim.
