TM 5-5420-202-20-4
FIXED FIRE EXTINGUISHER CONTROL VALVE REPLACEMENT (Sheet 4 of 14)
DISASSEMBLY:
THREE-PORT VALVE
FOUR-PORT VALVE
NOTE
Steps 1 through 10 describe the disassembly of four-port valve. Steps 11 through
18 describe the disassembly of three-port valve. Although the four-port valve is the
latest model, there are some three-port valves on current vehicles.
Using diagonal cutting pliers, remove
1.
lead seal (A).
Using fingers, remove wire from three
2.
screws (B) and pin (C).
Using screwdriver, remove three screws
3.
(B) and washers (D) securing cover (E)
to housing (F).
Remove cover (E) from housing (F).
4.
TA248663
Go on to Sheet 5