3-16. PISTONS, PISTON PINS, AND RINGS REPLACEMENT (CONT)
· Drycleaning 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 I drycleaning solvent is 100°F (38°C), type II is 138°F
(59°C), and type III is 200°F (93.3°C). Failure to do so may result in injury or death to
· 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, immediately flush eyes with water and get immediate medical
· Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use only
with effective chip guarding and personal protective equipment (goggles/shield,
Do not use bead blast to clean
pistons. Bead blasting may damage
Soak pistons (2) in dry cleaning
solvent P-D-680 to remove carbon
Wash pistons in a strong solution of
laundry detergent and hot water, to
remove carbon residue. Use a stiff
Clean ring grooves in piston (2) using square end of a broken piston ring. Use care to
avoid scratching ring sealing surfaces in piston grooves.
Clean pistons again in solution of laundry detergent and hot water.
Rinse pistons in clean, fresh water and dry using compressed air.