TM 5-5420-202-20-4
UPPER DISCHARGE VALVE, TUBES, AND RELATED PARTS REPLACEMENT
(FIXED FIRE EXTINGUISHER) (Sheet 3 of 6)
6.
Using one pipe wrench to hold elbow (G), use other pipe wrench to remove elbow (F)
from elbow (G).
7.
Using pipe wrench, remove elbow (G) from valve (H).
8.
Using pipe wrench to hold elbow (K), use 1 inch wrench to remove self-sealing socket
(J) from elbow (K).
Place valve (H) in a vise.
9.
10.
Using pipe wrench, remove elbow (K) from valve (H).
INSPECTION:
Make sure all connections and seating surfaces are free of nicks, burrs, or other defects that
could cause leakage. Replace any damaged parts.
ASSEMBLY:
NOTE
Apply zinc chromate primer to all threads prior to installation of threaded
tube/hose connections.
NOTE
Secure tubes and related parts in vise as
necessary to accomplish assembly.
TA248725
Go on to Sheet 4
