TM 1-1740-204-13&P
3-26.1. REMOVAL
To remove a component of the tank connector assembly, use the following disassembly procedures.
WARNING
Remove or disconnect nitrogen tanks before maintenance. Never disconnect a pressurized line.
WARNING
Check the direction of the arrow stamped on the check valve. An incorrectly installed check
valve may cause the connector hose to whip violently when used with only one tank of nitrogen
and possibly cause serious injury to the operator.
CAUTION
Use only a 6 point 11/16 inch socket to remove the nipple connector of the tank connector
assembly. An open end wrench or 12 point socket will deform and damage this part.
NOTE
Carefully remove old Teflon tape or sealant. Do not allow Teflon tape or dried sealant particles to
fall into the components.
a.
Place a ratchet wrench with a 6 point, 11/16 inch socket over the nipple connector (1) and turn it counter
clockwise while holding the reducing pipe coupling (2) with an adjustable wrench on its hex.
b.
Remove hand nut (3). Remove coupling (2) from check valve (4) by using a box wrench and an adjustable
wrench on the hexes.
c.
Remove check valve (4) from pipe tee (5) by gripping pipe tee (5) in a non-marring vise.
d.
The tank hose assembly (6) and panel hose assembly (7) may be removed. Use a wrench to disconnect the
hose fittings from the tee. Remove check valve (8).
e.
Place a ratchet wrench with a 6 point, 11/16 inch socket over the nipple (9) and turn it counterclockwise while
holding the fitting of the tank hose assembly (6) with a wrench on the fitting hex.
f.
Remove hand nut (10). Remove O-rings (11).
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