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  TM 5-3740-214-14
ENGINE START-UP PROCEDURES (Continued)
c.
Make sure the solenoid valve switch is turned OFF.
Figure 2-29. Ignition Switch
d.
Turn the ignition switch ON.
e.
Push the start button and hold it in until the engine starts.
NOTE
If the engine is difficult to start, open the compressor pulsation tank drain valve to decrease the
engine load.
f.
If the engine does not start, refer to the troubleshooting instructions in Chapter 3, Section II.
g.
As the engine warms up, gradually open the choke.
h.
Perform the pre-operation checks and services.
OPERATION PRE-CHECK
WARNING
BE ALERT not to touch the compressor, separator or nozzle assembly while performing operation
pre-checks. These parts get hot when the compressor is running.
BE ALERT not to walk in front of the nozzle when the compressor is running.
a.
Allow the engine to run for five minutes before performing the operation pre-checks.
b.
Check the formulation tank pressure gage.
(1) The pressure gage should read 10 to 15 psi.
(2) If the pressure gage reads greater than 15 psi, shut the engine ignition switch OFF, and turn to the
troubleshooting procedures in Chapter 3, Section II.
2-25
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