TM 10-3930-659-34 5-2. CYLINDER LINERS MAINTENANCE (Con’t). b. REPAIR 1. If glazing of cylinder liner is found, remove glaze with honing unit. WARNING Dry  cleaning  solvent,  P-D-680,  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 solvent’s flash point is 100°F-138°F (380C-590C).  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. 2. Clean cylinder liner (4) with dry cleaning solvent and a scrub brush.  Dry with clean rags. 5-17 TM 10-3930-659-34 5-2. CYLINDER LINERS MAINTENANCE (Con't). c. REMOVAL CAUTION DO NOT remove cylinder liner from engine block unless damaged or removal is required to gain access to engine block.  Damage to cylinder sleeve on engine block may result. NOTE