TM  10-3930-638-24&P 3-13.   STARTER   AND   SOLENOID   REPAIR   (cont) STEP LOCATION ITEM ACTION REMARKS DISASSEMBLY (cont) 6 WARNING (cont) Wear safety glasses when drying parts with compressed air. Fail- ure to do so could cause serious injury to eyes and possible blind- ness. [f you hurt your eyes or if a foreign object is blown into your eyes, seek medical attention immediately. 7 All other parts Clean Use  clean  cloth  moistened  with  cleaning solvent P-D-680. Dry thoroughly with compressed  air INSPECTION 8 Brushes  (39) Inspect Replace if cracked, crazed, distorted, or if brush wear exceeds one half of new brush length 9 Brush holder (37, Inspect Replace if cracked, worn or distorted, or if 38) brush does not move freely in holder 10 Brush springs (35) Inspect Inspect for wear, cracks, distortion or dis- coloration. Check brush spring tension to check that brushes are held firmly. If tension is weak or if any other condition is observed, replace spring 11 Sleeve bearings (21, 34) Inspect Replace if worn, cracked, pitted or burred 12 Drive  assembly  (15) Inspect Replace if worn, damaged, distorted, or pinion teeth cracked, chipped, worn or damaged, or pinion does-not turn freely in  over-running  direction 13 Inspect Replace if cracked, worn, damaged or distorted or commutator rough or out of round 14 Inspect Replace if cracked, worn, damaged or distorted 15 Inspect Replace if worn, cracked, damaged or distorted Armature (10) Solenoid  switch  (24) All other parts 3-107