TM 5-5420-202-20-4
FRONT DRAIN VALVE ASSEMBLY REPLACEMENT (Sheet 3 of 5)
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 100F (38C) and for Type #2 is 138F (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.
1.
Clean all parts using drycleaning solvent
and clean rags.
Inspect all parts for cracks, corrosion, damage,
2.
or other defects. Replace defective parts.
Inspect mating surface of cage (A) and valve (B)
3.
for- cracks, corrosion, damage, or other
defects. Replace cage (A) or valve (B) if
defective.
Measure length of spring (C). If spring is
4.
less than 2-1/2 inches, replace spring.
INSTALLATION:
1.
Using pliers, start pin (A) in lower hole in
valve (B).
With valve (B) in vise, drive pin (A) in hole
2.
until pin (A) sticks out an equal amount
on both sides of valve (B).
3.
Push valve (B) up through cage (C) and turn
valve (B) until valve (B) fits all the way
up in cage (C).
With cage (C) in vise. hold valve (B) in place
4.
and install spring (D) `and knob (E) on cage (C).
Go on to Sheet 4