TM  10-3930-643-34 BRAKE  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 8-14. Air Compressor. (Sheet 13 of 13) ASSEMBLY  (cont) 69. Install two valves (13) and guards (12) in cylinder head (5). Guards must be staked  and  flush  with cylinder head (5). 70. Using  a  1/2”  socket,  socket  wrench handle  and  torque  wrench,  install  new gasket (6) , cylinder head (5) and five bolts (4) in crankcase (41). Tighten five bolts (4) to 15 lb-ft. 71. Using  snap  ring  pliers,  install  two seats (11), valves (10), washers (9), springs (8) and cages (7) in valve (2). 72. Using  a  7/16”  socket,  socket  wrench handle  and  torque  wrench,  install  two cups (3), valve (2) and two bolts (1) in cylinder head (5). Tighten  two bolts (1) to 18 lb-ft. NOTE Return  M10A  Forklift equipment  condition. to original END OF TASK 8-74