Dry cleaning solvent P-D-680 is toxic and flammable. Wear protective goggles
and gloves and use in a well-ventilated area. Avoid contact with skin, eyes, and
clothes. Do not breathe vapors. Do not use near open flame or excessive
heat. The flash point is 100-138°F (38-50°C). If you become dizzy while using
cleaning solvent, get fresh air immediately and seek medical aid. If contact
with eyes is made, wash with water and get medical aid immediate y.
Compressed air used for cleaning purposes will not exceed 30 PSI. Use only
with effective chip guarding and personal protective equipment (goggles/
shield, gloves, etc.)
Clean air inlet housing and valve with
cleaning solvent and dry with
Inspect air inlet housing for cracks,
warpage, scoring or other damage.
Check by-pass valve for scores or ring
groove damage. Replace any valve
severely scored or damaged.
Check ring for chips or scoring. Replace
any ring chipped, scored or severely
Install ring (18) in groove of by-pass
valve (11). Lubricate by-pass valve, ring
and by-pass valve bore with engine oil.
Secure one side of air inlet housing (5),
in soft-jawed vise, with valve bore facing
Use a piston ring compressor (19) to
compress ring (18) on by-pass valve
assembly (11). Install valve, with ring
side facing up, in bore of air inlet
housing (5) by lightly tapping valve with
handle end of hammer.