TM 1-1520-238-T-7
10–144
Change 5
10–47. FUEL QUANTITY INDICATION/TRANSFER – MAINTENANCE OPERATIONAL
10–47
CHECK
Tools:
Nomenclature
Part Number
Tool Kit, Aircraft
SC518099CLA01
Mechanic’s
Personnel Required:
67R
Attack Helicopter Repairer
Two people to assist
References:
TM 1-1520-238-T-4
TM 1-1520-238-T-5
TM 1-1520-238-T-6
TM 9-1090-208-23-1
TM 1-1520-238-10
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 9-1090-208-23-1
Ammo storage magazine
removed
Paragraph 10–12
HELICOPTER FUEL
SYSTEM – VISUAL
CHECK completed
Paragraph 10–10
FUEL SYSTEM – POWER
UP completed
TM 1-1520-238-T-4
Maintenance headset
connected
TM 1-1520-238-T-6
Pilot and CPG
caution/warning
maintenance operational
checks performed
WARNING
Make sure helicopter safing procedures are accomplished. Observe all
safety precautions during troubleshooting or maintenance procedures.
Failure to do so could result in death or serious injury.
Jet engine fuel is explosive, flammable, and toxic to skin, eyes, and
respiratory tract. Work in a well-ventilated area away from open flames.
Wear protective clothing. If fuel comes in contact with eyes or skin, flush
with water and get medical aid.
Do not allow sparks or flame near helicopter when servicing or
performing maintenance on fuel system.
Make sure helicopter is grounded.
NOTE
Fuel quantity system capacitance and indicating test must be performed
first if any of the following fuel system components have been replaced:
FSC, fuel cell quantity transmitter or fuel system wire harness.
If fuel quantity system capacitance and indicating test is to be
performed, go to paragraph 10–48 or 10–48A.
Amber XFEED indicators on pilot and CPG caution/warning panels
(figs.10–56 and 10–57) will light with pilot FUEL panel (fig.10–58) ENG 1
and ENG 2 switches set to OFF (engine 1 and engine 2 crossfeed/shutoff
valves closed).
