TM 10-3930-664-24 15. Remove  grease   fitting   (13)   from   slip   yoke   (8) only if replacement is required. NOTE Mark shaft assembly (3) and slip yoke (8)    before    separating    to    assist    in alignment during installation. 16. Remove slip yoke (8) from shaft assembly (3) by removing  dust  cap  (14),  steel  washer  (15),  and rubber washer (16). B.  CLEANING Clean drive shafts in accordance with paragraph 1-24. C.  INSPECTION 1. Inspect         drive         shaft         components         in accordance with paragraph 1-24. 2. Inspect   shafts   for   damaged,   dented,   or   bent tubing. 3. Ensure shaft is free of foreign material, such as undercoat or concrete.  If found, foreign material shall   be   removed   carefully   to   avoid   damaging shaft. 4. Inspect   mounting   flanges   for   burrs,   paint,   or foreign material. D.  ASSEMBLY 1. Align slip yoke (8) and shaft assembly (3) using match-marks.        Secure    slip    yoke    onto    shaft assembly using dust cap (14), steel washer (15), and rubber washer (16). 2. Install grease fitting (13) into slip yoke (8). 3. Install bearing trunions (12) onto cross assembly (7).      Secure   by   driving   lockwire   into   slots   in bearing trunions. 2-280