TM 10-3930-664-24 3. Loosen set screw locknut (6).  Loosen set screw (5) until it stops. 4. Remove screws (7, 8).  Lift rocker arm assembly (9) out of cylinder head. 5. Remove  push  rods  (10)  only  if  replacement  is required. B.  CLEANING 1. Clean  components  in  strong  solution  of  laundry detergent and hot water. 2. Rinse components in hot water and air dry. C.  INSPECTION Inspect  components  in  accordance  with paragraph 1- 24. D.  INSTALLATION 1. Install  push  rods  (10)  into  valve  tappet  sockets. Lubricate push rod sockets with oil. CAUTION Ensure  rocker  lever  set  screws  (5)  are completely backed  out  before  installing rocker arm assemblies. 2. Install   rocker   arm   assembly   (9)   into   cylinder head.      Ensure   dowel   ring   in   rocker   support mates with dowel bore. 3. Lubricate threads and under heads of screws (7, 8).  Install screws. 4. Torque  four  cylinder  head  screws  (7)  in  three stages as follows: a. Stage 1 = 66 ft-lbs (90 Nm). b. Stage 2 = 89 ft-lbs (120 Nm). c. Stage  3  =  tighten  screws  an  additional 1/4 turn. 5. Torque   four   screws   (8)   to   18   ft-lbs   (24   Nm). 3-49