TM 10-3930-669-34 VISUAL INSPECTION (1) Remove differential housing cover (Para 10-4). (2) Inspect  ring  gear  for  cracks,  chips,  and  uneven wear. (a) If  ring  gear  is  damaged,  replace  drive  axle (Para 10-2). (b) If    ring    gear    is    not    damaged,    fault    not corrected.      Perform   Step   (3)   below   and replace drive axle (Para 10-2). (3) Install differential housing cover. VERIFY REPAIR (1) Start engine (TM 10-3930-669-10). (2) Operate  forklift   and   listen   for   unusual   noise   from drive axle. (a) If  drive  axle  is  noisier  during  coasting,  fault not  corrected.    Perform  Step  (3)  below  and replace drive axle (Para 10-2). (b) If  drive  axle  is  not  noisier  under  power,  fault corrected. (3) Shut down engine. 2-83