TM 55-1520-240-23-8
10-40
INSTALL FUEL TANK DRAIN VALVE
10-40
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Socket, 1 Inch
Torque Wrench, 150 to 750 Inch-Pounds
Materials:
None
Parts:
Packings
Personnel Required:
Medium Helicopter Repairer
Inspector
References:
TM 55-1520-240-23P
General Safety Instructions:
All regulations and instructions
for handling fuels shall be strictly
observed.
NOTE
There are two drain valves on each
tank, one at forward end and one at
aft end. Procedure can be used to
install any drain valve.
Forward and aft drain valves do not
look alike.
1.
Remove plugs from tank drain holes (1) as
required.
2.
For aft location in tank, install packings (2 and
3) on drain cock (4). Install drain valve in aft
drain hole (1). Torque valve to 180 to 240
inch-pounds.
3.
For forward location in tank, install packing (5)
on drain cock (6). Install drain valve in forward
drain hole (1). Torque valve to 180 to 240
inch-pounds.
10-205
