TM9-2815-202-34 WARNING Compressed  air  used  for cleaning  purposes  will  not exceed  30  psi.  Use  only  with effective  chip  guarding  and personai   protective   equipment (goggies/    shieid,   gioves,   etc). (c) (d) (e) (f) (9) (h) Ciean aii  parts  with  fuei oii  and LL dry with compressed air. inspect parts for wear and damage.  Reiief valve must move freely in valve body. Repiace vaive and vaive  body if parts are scored and cannot be cleaned with crocus cioth. Repiace pitted or fractured springs. Assembie vaive assembly by first  appiying  engine  oii to outer face of  vaive  (24) and siide it into reiief vaive  body (21),  ciosed  end first. instaii two inner spring seats (23), springs (18 and 19), and spring seat (22) into relief vaive body (21). Whiie  compressing  springs,  instaii retaining pin (20) above spring seat (22). b c.   installation (1)  Oii (a) (b) pressure  reguiator vaive instaii gasket (6) and  oii pressure  reguiator valve (4) to cylinder block (5). Secure  reguiator vaive to block with two bolts (1), two  Iockwashers  (2), and two flat washers (3). Torque bolts to 30-35  Ib-ft (41-47 N-m). (2)  Oii  pressure   reiief vaive @ * (a) (b) instaii gaskets (11 and 12) and oil pressure  reiief vaive (9) to cyiinder biock (5). Secure  reiief valve to block and oii pump (10) with four  boits (7) and four  iockwashers  (8).  Torque boits to 30-35 ib-ft (41-47 N-m). END OF TASK FOLLOW-ON  MAINTENANCE Para   Description 4-20  instaii oii   pan 4 - 1 23