TM 5-4940-228-14
c. Insert four vanes (10) into rotor (11) slots with
beveled edges towards center of rotor and slide rotor
(11) thru housing (13). Carefully insert shaft of
rotor (11) thru bearing (3),
d. Press bearing (4) and shaft seal (5) into drive
end plate (7).
e. Place gasket (9) over open face of housing
(13). Line up drive end plate (7) with holes in gasket
(9) and housing (13), screw in six screws (6) and
tighten.
f. Once assembled, lubricate air motor with 1/2
ounce (15 ml) of motor oil into one of the housing
(13) openings. Rotate rotor (11) shaft by hand in
both directions to thoroughly coat the rotor (11),
vanes (10) and housing (13).
g. Test the air motor by supplying air to the inlet
opening. Gradually increase air pressure while
watching the rotor (11) shaft. Rotor (11) shaft
should start rotating slowly and steadily then in-
crease in speed as you increase inlet air pressure.
8-3