TM 5-5420-202-20-4
FIXED FIRE EXTINGUISHER CONTROL VALVE REPLACEMENT (Sheet 13 of 14)
INSTALLATION:
Actuating pins on bottoms of valves must be fully retracted before valves are
installed on cylinders or cylinders will discharge during installation.
Do not pull on cables as valves are being installed or cylinders will discharge.
NOTE
Apply primer to all male pipe threads before installing threaded parts.
1.
Using 7/16 inch wrench, install
adapter (A) on valve (B).
2.
Using 3/8 inch drive torque wrench and
7/16 inch crow foot wrench, tighten
adapter (A) to 135-150 lb-in (13.5-17
N-m).
3.
Using hands, remove protective cap
(C) from port of cylinder (D) and stow
on dummy coupling (E).
4.
Using 1-1/2 inch wrench, install valve
(B) and washer (F) on cylinder (D).
5.
Using hands, remove protective cap
(G) from port on cylinder (H) and stow
on dummy coupling (J).
6.
Using 1-1/2 inch wrench, install valve
(K) and washer (L) on cylinder (H).
Go on to Sheet 14
TA248672