TM  10-3930-643-34 ENGINE,  FUEL,  EXHAUST  AND 4-6. Rocker  Arm  Assembly INSTALLATION 20. Slide spring (20) to COOLING   TROUBLESHOOTING and Valve Cover. (Sheet AND  MAINTENANCE.  (cont) 6 of 9) center of shaft (24). Position  shaft  (24)  with  side marked TOP up, as shown. 21. Install side of must be 22. Install two rocker arms (18) on each spring (20). Adjusting  screw toward assembler, as shown. two brackets (19) on each end of spring (20) next to two rocker arms (18). Tapped hole must be away from assembler and the bolt holes must aline with notches in shaft (24). 23. Install  four  springs  (20),  ten rocker arms (18) and four brackets (19). Observe  order  of  assembly, as shown. 24. Using  internal  snap  ring  pliers, install retaining rings (21 and 17). Go to sheet 7 4-56

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