TM 5-5420-202-20-4
FIXED FIRE EXTINGUISHER MANIFOLD REPLACEMENT
(Sheet 2 of 2)
INSTALLATION:
1.
Using hands, remove the protective cap (A) from each of the three cylinders (B). Stow
caps (A) on dummy plugs (C).
2.
Posit ion manifold (D) on top of three cylinders (B).
3.
Using fingers, start tube nut (E) on manifold fitting (F).
4.
Using fingers, start three manifold nuts (G) on cylinders (B).
5.
Using 1-1/16 inch wrench, hold fitting (F) and use 1-1/4 inch wrench to tighten nut (E)
to a snug fit.
6.
Using 1-1/4 inch crowfoot wrench, extension,
and torque wrench, torque nut (E) to
40-55 lb-ft (54-75 N m).
7.
Using 1-5/8 inch wrench, tighten three
nuts (G) to a snug fit.
8.
Using 1-5/8 inch crowfoot wrench and
torque wrench, torque nuts (G) to 70-90
lb-ft (95-102 N-m).
9.
Replace control valves (page 20-14)
TA248722
20-64