TM 5-5420-202-20-4
FIXED FIRE EXTINGUISHER CONTROL VALVE REPLACEMENT (Sheet 7 of 14)
CLEANING AND INSPECTION:
WARNING
Dry cleaning solvent P-D-680 is toxic and flammable, To prevent personal injury, wear
protective goggles and gloves and use only in a well-ventilated area. Avoid contact with skin,
eyes, and clothes and don't breathe vapors. Do not use near open flame or excessive heat. The
flash point for Type #l Dry Cleaning Solvent is 100 (38C) and for Type #2 is 138 (50C).
If you become dizzy while using cleaning solvent, get fresh air immediately and get medical aid.
If contact with eyes is made, wash your eyes with water and get medical aid immediately.
Using rags and dry cleaning solvent, clean all parts.
1.
2.
Inspect valves and related parts for nicks, burrs, and cracks.
3.
Replace damaged parts.
ASSEMBLY:
NOTE
Steps 1 through 18 describe assembly of four-port valve (A). Steps 19 through 34
describe assembly of three-port valve (B). Although the four-port valve is the latest
model, both valves are used on current vehicles. If three-port valve is used in system,
proceed to step 19.
Go on to Sheet 8
TA248666
