TM 10-3930-669-20 (2)   Remove lock nut (7), screw (8), and wiper blade (9) from wiper arm (5).  Discard lock nut. b.  Cleaning/Inspection. WARNING 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) and for type II is 138'F (50'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, immediately flush eyes with water and get immediate medical attention. (1)   Clean all metal parts with drycleaning solvent. (2)   Do not allow drycleaning solvent to come in contact with rubber portion of blade. (3)   Inspect all parts for breaks, cracks, burrs, and sharp edges. (4)   Replace all damaged parts. 16-15

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