TM  9-2815-202-34 5-37.  CYLINDER  HEAD  REPAIR  (Cont) a. Disassembly NOTE (1) (2) Immediately  after  removing  fuel  lines, cover each injector opening with cap to keep out dirt. Remove four inlet fuel lines (1) and four outlet fuel lines (2) from fuel injectors (3) and fuel connectors (4). Discard fuel lines. NOTE l Tag rocker  arms,  shafts,  brackets,  valves,  cam  followers,  and  associated  hardware so they can be installed in their original position. l On  models  7083-7396  and  7083-7391,  one  rocker  arm  shaft  bracket  on  right  cylinder head contains throttle delay housing (5). Remove  eight bolts  (6)  securing  rocker arm  shafts (7) and brackets (8) to cylinder head. NOTE n On model 7083-7396, inspect throttle delay  check  valve  for  Ieakage.  Fill throttle delay cylinder with fuel oil and watch check valve for leakage while moving engine throttle from idle to full fuel position. If more than a drop of leakage  occurs,  replace  check  valve. (3) Remove four rocker arm shafts (7) and eight  rocker  shaft  brackets  (8)  from cylinder head. If necessary, remove check valve (9) used on model 7083-7396 and oil supply fitting (10) from throttle delay housing (5) used on models 7083-7396 and  7083-7391. 5-36 C h a n g e     1