INSPECT - Continued.
Visually inspect valve body (24), surface A,
for stripped threads. Inspect seal grooves
B and C for scratches and dents. Use a
strong light and inspect inner bore D for
foreign material, scoring, or excessive
Replace valve body (24) and spool if
stripped threads, damaged seal grooves,
scoring, or excessive wear is detected.
Replace spring if damaged or worn.
INSPECT SPOOL FOR DAMAGE AND WEAR.
Inspect spool (33), surface E, for scoring
and excessive wear.
Replace spool (33) and valve body if
scoring or excessive wear is detected on
Slide spool (33) into valve body spring end
first. Check for looseness and chatter.
Spool should be a tight slide fit. Replace
Cleaning solvent, P-D-680, is TOXIC and
flammable. Wear protective goggles and
gloves. Use only in a well ventilated area.
Avoid contact with skin, eyes, and clothes,
and do not breathe vapors. Keep away from
heat or flame. Never smoke when using
solvent; the flashpoint for Type III cleaning
solvent is 200°F (93,3°C). Failure to do so
may result in injury or death to personnel.
If personnel become dizzy while using
cleaning solvent, immediately get fresh air
and medical help. If solvent contacts skin or
clothes, flush with cold water. If solvent
contacts eyes, flush eyes with water and get
immediate medical attention.
If spool (33) does not fit into valve body
smoothly, inspect spool for burrs. Remove burrs with
emery cloth. Rinse spool with cleaning solvent after
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