TM 55-1510-222-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
BEFORE STARTING ENGINES
1. Seats, pedals, belts, harnesses - Ad-
just.
2. Flight controls - Check for free and
correct movements.
*3. Parking brake - Check. Confirm
that brakes are set by applying ad-
ditional toe pressure.
*4. Oxygen system - Check as follows:
a. Oxygen supply pressure gages -
Check.
b. Supply control lever (green) -
ON.
c. Diluter control lever - 100%
OXYGEN.
d. Emergency control lever (red) -
Set to TEST MASK position
while holding mask directly
away from face, then return to
NORMAL.
e. Oxygen masks - Put on and ad-
just.
f. Emergency pressure control le-
ver - Set to TEST MASK posi-
tion and check mask for leaks,
then return lever to NORMAL.
g. Flow indicator - Check (during
inhalation blinker appears. dur-
ing exhalation blinker disap-
pears). Repeat a minimum of 3
times.
5. Circuit breakers - Check in.
6. Overhead control panel switches -
Set as follows:
2-8
