TM 55-1510-215-10
5. Oxygen system - Check as required.
8-16. Engine Runup.
H
(1) Cockpit oxygen supply valve (left cockpit
Turn the aircraft into the wind if possible, and
sidewall) - As required.
perform the following checks:
(2) Cabin oxygen supply valve (left cockpit
*
1. Nose wheel - Center.
sidewall) - As required.
NOTE
(3) Oxygen supply pressure gage (left cockpit
sidewall) - Check.
The
nose
wheel
cannot
be
straightened with rudder pedals
(4) Oxygen supply pressure gage (regulator
when the aircraft is stopped.
control panel) - 300 to 400 PSI.
*
2. Parking brake - Set (keep feet on rudder
(5) Supply control lever (green) - ON.
pedals).
(6) Diluter
control
lever
(white)
-
100%
NOTE
OXYGEN.
The parking brake can be set only
(7) Emergency pressure control lever (red) -
from pilot's seat.
NORMAL.
*
3. Power levers - IDLE.
(8) Oxygen mask hose - Connect to mask
hose connection.
*
4. Condition levers - LO IDLE.
(9) Emergency pressure control lever (red) -
*H
5. Fuel transfer pumps - Check as follows:
Set to TEST MASK position while holding mask directly
away from your face, then return lever to NORMAL.
(1) Transfer test switch - Hold to "R".
(10) Oxygen mask - Put on and adjust to face.
(2) Right transfer pump
switch
(while
watching annunciator panel) - ON.
(11) Emergency pressure control lever (red) -
Set to TEST MASK position and check mask for leaks,
(3) Monitor R FUEL XFR light - Check for
then return lever to NORMAL.
momentary flash.
(12) Flow indicator - Check (during inhalation
NOTE
blinker appears, during exhalation blinker disappears).
Repeat a minimum of 3 times.
Steady illumination or lack of
momentary flash indicates a transfer
6. Radios - Check intercom, communication and
pump system fault. For the system
navigation systems and radar.
fault recheck, switch transfer pump
OFF for 5 to 10 seconds and repeat
7. Taxi clearance - Check.
fuel transfer pump check.
The
momentary flash may not be detected
8. Clock - Set.
if the cockpit lights are on.
9. Altimeters - Set.
(4) Repeat check procedure for left transfer
pump system.
10. Parking brake - Release.
6. Flaps - Check operation of 4 panels and flap
8-15. *Taxiing.
position indicator.
1. Brakes - Check.
2. Flight
instruments
-
Check
settings
and
operation.
8-12 Change 5
