TM 1-1740-204-13&P
3-22.1. REMOVAL
WARNING
Remove or disconnect nitrogen tanks before maintenance. Never disconnect a pressurized line.
a.
Loosen and disconnect the flare fittings in the supply and output lines at (1) and (2). Loosen and disconnect the
flare fittings in the pressure sense line to the air pilot valve at (3) and (4).
b.
Loosen and remove bolts (5), flat washer (6), nuts (7) and lock washers (8) at four places. The booster pump can
then be removed from the booster panel.
c.
Remove high pressure relief valve (9) and T fitting (10) assembly with an adjustable wrench. Remove the
elbows (11) and (12) from the booster pump (13).
3-22.2. INSTALLATION
a.
Install elbow fitting (11) on the booster pump (13) but do not tighten the flare fitting yet. Using Teflon tape (D1)
or sealant (D2), install elbow fitting (12) and T fitting (10) on the booster pump (13) and orient as shown in the
illustration..
b.
Using Teflon tape (D1) or sealant (D2), install high pressure relief valve (9) to T fitting (10) and orient as shown
in the illustration.
c.
Mount booster pump to booster panel using four each of bolt (5), flat washer (6), nut (7) and lock washers (8).
Apply a drop of thread lock fluid (D3) to the mounting bolts (5) before assembling nuts (7).
d.
Connect supply and output line flare fittings (1) and (2) and tighten. Tighten the flare nuts of elbow fitting (11).
Reconnect the flare fittings in the pressure sense line to the air pilot valve at (3) and (4).
e.
Perform leak check and confidence test procedure per paragraph 2-8.
END OF TASK
3-29
