TM 10-3930-669-34 CAUTION To prevent corrosion, parts should be dipped in rust preventive within two hours of degreasing . h. Degreasing Machine.  A degreasing machine may be used to remove heavy grease and oil from metal parts. WARNING • Dry-cleaning  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 dry-cleaning 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. • Never  use  fuel  to  clean  parts.    Fuel  is  highly  flammable.    Serious  personal  injury  could result if fuel ignites during cleaning. i. Passages.      After   degreasing,   check   all   oil   passages   and   cavities   for   dirt   or   blockage   before   coating   with lubricating oil.  Run a thin, flexible wire through oil passages to make sure they are not clogged.  Use a pressure spray gun and dry-cleaning solvent to clean dirty passages. j. Electrical Parts.  Electrical parts, such as coils, junction blocks, and switches, should not be soaked or sprayed with dry-cleaning solutions.  Clean these parts with a cleaning cloth moistened with dry-cleaning solvent. CAUTION Do not use soap or alkalies for cleaning tank interiors. k. Oil  and  Fuel  Tanks.    Pay  special  attention  to  all  warnings  and  cautions  when  working  on  forklift  fuel  tank.    Oil tanks and fuel tanks should be flushed, using a spray gun and dry-cleaning solvent. I. Battery.  Exterior surfaces of the electrical system and battery should be cleaned with a weak solution of baking soda and water.  Apply solution with a bristle brush to remove corrosion.  Pay special attention to all warnings and cautions when working on the battery. m. Hydraulic  System.    When  cleaning  hydraulic  system  parts,  use  dry-cleaning  solvent  P-D-680.    Clean  and  dry parts thoroughly to make sure no solvent residue remains.  If a coating preservative is required before assembly, apply a light film of lubricant.  This lubricant must be of the same type used in the forklift’s system. 2-91