TM 9-4310-397-14
6-3. FUEL INJECTION NOZZLE REPAIR AND REPLACEMENT. - Continued
(4) If opening pressure is incorrect:
(a)
Remove nozzle from tester and install in No. 17787 holding fixture from (item 9, section III, appendix B).
Figure 6-9. Nozzle Pressure Adjusting
(b)
Loosen pressure adjusting screw lock nut (Figure 6-9, 2).
(c)
Reconnect nozzle to tester with tip pointing downward.
(d)
Back out lift adjusting screw (3) far enough (two or three turns) to prevent bottoming when pressure
adjusting screw (4) is turned.
NOTE
It is desirable to set opening pressure to the high limit of specification. If required, repeat
procedure to obtain proper result.
(e)
Turn pressure adjusting screw (4) in (clockwise) to increase opening pressure, or out (counterclockwise) to
decrease opening pressure.
6-10
