TM 10-3930-669-34 12-4. STEERING CYLINDER REPAIR (CONT). NOTE Perform    Step    (11)    only    if    locator dowel pin is damaged. (11) Remove locator dowel pin (12) from steer axle (13). b. Cleaning/Inspection. 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. (1) Clean all components and flush cylinder barrel using dry-cleaning solvent only.  Do not use cleaning cloth as any foreign material would contaminate hydraulic system. (2) Inspect barrel bore for any scratches or corrosion.  Replace barrel if rusted.  Replace barrel and piston rod if either component is scratched. (3) Inspect piston rod for bending.  Replace if necessary. (4) Inspect  piston  rod  for  scratches  or  pitting.    Remove  minor  scratches  and  pitting  by  using  stone  and lubrication oil.  Stone imperfection just enough to smooth raised part. (5) Inspect the cylinder ports and threads for burrs and stripped threads.  Replace or repair as necessary. (6) Inspect thru-fastener threads for burrs and stripped threads.  Replace or repair as necessary. 12-12