CONTROL VALVE REPAIR (Cont).
Remove retaining pin (89), shoulder pin (92), spring (91), and trimmer regulator valve (90) from control valve body
CLEANING AND INSPECTION I
Dry cleaning solvent, PD680, is toxic and flammable. Always wear protective goggles and gloves,
and use only In a well-ventilated area. Avoid contact with skin, eyes, and clothes, and DO NOT
breathe vapors. DO NOT use near open flame or excessive heat. The solvents flash point is
100°F138°F (380C590C). If you become dizzy while using cleaning solvent, Immediately get fresh
air and medical help. If solvent contacts eyes, Immediately wash your eyes and get medical aid.
Clean metal parts with dry cleaning solvent.
Compressed air used for cleaning or drying purposes, or for clearing restrictions, should never
exceed 30 psi (207 kPa). Wear protective clothing (goggles/shield, gloves, etc.) and use caution to
avoid Injury to personnel.
Dry control valve with compressed air.
Inspect metal parts for cracks, breaks, wear, and other damage. Replace if damaged.
Inspect bores of control valve for scratches and other damage.