TM 5-3805-280-24-2
Fuel System
35
Minimum Acceptable Opening Pressure of Used Nozzle--
77
Specification
Opening Pressure For Checking............. 22950 kPa (230 bar) (3330 psi)
(Minimum)
Maximum Opening Pressure Difference Between Cylinders--
Specification
Maximum Pressure Difference .......................... 700 kPa (7 bar) (100 psi)
RG,35,JW7631
1921NOV973/7
If opening pressure is incorrect:
1. Remove nozzle from tester and install in holding
fixture.
2. Remove lift adjusting lock nut (D).
3. Loosen pressure adjusting screw lock nut (A), using
JDG949 Nozzle Wrench.
4. Reconnect nozzle to tester with tip pointing downward.
5. Back out lift adjusting screw (B) far enough (two or
A--Pressure Adjusting Screw Lock Nut
three turns) to prevent bottoming when pressure
B--Lift Adjusting Screw
adjusting screw (C) is turned.
C--Pressure Adjusting Screw
D--Lift Adjusting Lock Nut
6. Turn pressure adjusting screw in (clockwise) to
increase opening pressure, or out (counterclockwise) to
decrease opening pressure.
NOTE: It is desirable to set opening pressure to the high
limit of specification. If required, repeat procedure
to obtain proper result.
Continued on next page
RG,35,JW7631
1921NOV974/7
13-456