TM  10-3930-643-34 BRAKE  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 8-14. Air Compressor. (Sheet 11 of 13) ASSEMBLY 53. 54. 55. 56. 57. 58. 59. 60. 61. Using a hydraulic press or soft jawed vise,  install  new  bushing (28) on connecting  rod  (26). Using a soft jawed vise, install connecting rod (26) and pin (25) in piston (27). NOTE Ensure that lockwire holes in pistons and pin are alined during installation. Using  long  round  nose  pliers,  install lockwire (24). Install ring sets (23 and 22). Position gap in rings 180 degrees apart. Using a small hammer, install key (40) in crankshaft (38). Press bearing (39) onto crankshaft (38). Position crankshaft (38) in crank- case (41). Press bearing (39) in bore into crankcase (41). Using a soft jawed vise, install new seal (37) in bearing cap (35). Using a 1/2”   socket and socket wrench  handle,   install  new  gasket (36), bearing cap (35) and four lock bolts (34) in crankcase (41). Go to sheet 12 8-72