TM 10-3930-669-20 16-10.  HEATER TEMPERATURE CONTROL REPLACEMENT (CONT). (2) Remove four screws (4) and lift heater temperature control (5) from cab (6). (3) Remove  nut  (7),  screw  (8),  lock  washer  (9), clamp     (10),     and     cable     (2)     from     heater temperature control (5).  Discard lock washer. (4) Remove retaining clip (11) and cable (2) from pin on heater temperature control (5).  Discard retaining clip. (5) Remove cable (2) from cab (6). 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) Inspect all parts for breaks, cracks, burrs, and sharp edges. (3) Inspect all bearings for wear, scoring, and cracks. (4) Replace all damaged parts. 16-30