TM 10-3930-664-24 C.  INSPECTION 1.     Inspect  components  in  accordance  with  paragraph 1-24. 2.     Inspect plunger, bore, and seat for damage.  Plunger must move freely in valve bore. D.  INSTALLATION    1.     Install  plunger  (7)  and  spring  (6)  into  oil  filter  head (4).  Ensure plunger moves freely in valve bore. 2.     Install new O-ring (5) onto plug (3).  Install plug into oil filter head (4). 3.     Torque plug (3) to 60 ft-lbs (80 Nm). 4.     Close hood assembly (2).  Ensure handle (1) is fully engaged. FOLLOW-ON MAINTENANCE: Raise towbar and lock in position (para.  2-126) END OF TASK 2-81