Section Ill. OPERATION UNDER USUAL CONDITIONS
(3) Open the draincock in the bottom of
26. General
the air receiver tank to blow the com-
a. The instructions in this section are pub-
pressed air and condensate from the
lished for the use of personnel responsible for
air receiver tank.
the operation of the air compressor.
(4) Close the draincock.
b. It is essential that the operator know how
to perform every operation of which the air
b. Model LP-512-ENG.
compressor is capable. This section gives in-
struction on starting and stopping, on operat-
ing details, and movement to a new work site.
bottom of the air receiver tank (4) to
blow the compressed air and conden-
27. Starting
sate from the air receiver tank.
a. Model OEH-34-60-ENG-1.
(3) Close the draincock.
(1) Perform the daily preventive main-
tenance services (par. 43).
a. General. The air compressors are used by
(2) Inspect the magnetic starter to make
personnel for the quick inflation of tires, clean-
sure the electric motor is properly
ing parts, spraying paint, operating grease
wired for the incoming power source
guns, or any other operation within the capa-
bilities of the equipment. Model OEH-34-60-
(3) Apply the incoming power source to
ENG-1 will continue to cycle as long as the
the electric motor.
electric motor is supplied with current. Model
Note. Should the compressor fail to start,
LP-612-ENG will continue to cycle as long as
depress the reset button. If the compressor
fuel is fed to the engine.
still does not start, report the conditions to
the proper authority.
b. Air-pressure Adjustment, Model OEH-34-
b. Model LP-512-ENG.
60-ENG-1.
(1) Perform the daily preventive main-
tenance services (par. 43).
determine adjustment. Shut off the
outside power source, if adjustment is
bottom of the air receiver tank (4).
necessary.
(2) Remove the cover from the magnetic
moving it toward the air intake elbow
starter (par. 13).
as far as it will go.
(3) To raise CUT-IN and CUTOUT pres-
(4) Wind the starter rope clockwise
sure, turn the pressure adjusting
screw cdockwise.
around the starter rope pulley. With
a quick, steady pull, start the engine.
(4) To decrease the difference between
Repeat if necessary.
the CUT-IN and CUTOUT pressure,
turn the differential screw counter-
(5) When engine starts, allow it to run
clockwise.
for several minutes, gradually open-
ing the choke lever all the way.
Caution: When adjusting the dif-
ferential screw do not turn it farther
(6) When the engine is warm, close the
than it will turn easily.
draincock in the bottom of the air re-
(5) To increase the differential and main-
ceiver tank.
tain the same CUTOUT pressure, turn
the differential screw clockwise and, at
28. Stopping
the same time, turn the pressure ad-
a. Model
OEH-34-60-ENG-1.
justing screw counterclockwise.
(2) Turn off the outside power source.
