TM 5-4310-276-14
Section I.
OPERATING PROCEDURES
2-1. General
(4) Before starting, raise release valve lever to
unload compressor.
a. Instructions in this section are published for in-
(5) Wind starter rope clockwise around starter
formation and guidance of personnel responsible for
pulley.
operation of the air compressor.
(6) With a quick, steady pull, start the engine.
b. The operator must know how to perform every
(7) When engine starts, gradually open choke
operation of which the air compressor is capable. This
lever.
section gives instructions on starting and stopping
(8) Place release lever in down position.
the air compressor, basic motions of the air com-
(9) Close draincock.
pressor, and on coordinating basic motions to perform
(10) Perform the necessary procedures during
specific tasks for which the equipment is designed.
operation preventive services as indicated on table
Since nearly every job presents a different problem,
the operator may have to vary given procedures to fit
(11) Observe for any unusual noise or vibration.
the individual job.
WARNING
2-3. Stopping
(1) Turn ignition switch off.
Operation of this equipment presents a
(2) Open draincock to blow air and condensate
noise hazard to personnel in the area. The
from tank.
noise level exceeds the allowable limits for
(3) close draincock.
unprotected personnel. Wear ear muffs or
b. Perform the necessary procedures after opera-
earplugs which were fitted by a trained
tion preventive services as indicated on table 3-1.
professional.
2-4. Operation
WARNING
a. Start the air compressor.
b. Refer to figure 2-1 and operate the air
This compressor is not suitable for the
compressor.
supply of air for charging cylinders with
(1) Check pressure gage reading. It should read
breathable air.
between 140 to 175 psi (9.8 to 12.3 kg/sq cm).
(2) Unloader valve is set to unload at 175 psi
2-2. Starting
(12.3 kg/sq cm). To increase pressure, turn valve
a. Preparation for Starting. Perform the necessary
clockwise. To decrease pressure, turn valve
procedures before preventive services as in-
counterclockwise.
dicated in table 3-1.
NOTE
compressor.
Air compressor will continue to cycle as
(1) Turn ignition switch on.
long as fuel is fed to the engine.
(2) Open draincock.
(3) Close choke lever.
