TM 5-3810-295-34
both injectors must be snug on the ball end of their respective control levers.
(8) Position the remaining control levers in accordance with steps 6 and 7.
h With the engine running at idle speed, turn buffer screw (22, fig. 3-12), so that it contacts the stop lever lightly,
while still eliminating engine roll.
NOTE
Do not raise engine speed more than 20 RPM with the buffer screw.
i Secure buffer screw (22) in position with locknut (23).
Section XI. REPAIR OF FUEL INJECTOR
3-61. Description
The fuel injector performs four basic functions: 1) Creates high fuel pressure required for efficient operation, 2) meters and
injects the exact amount of fuel required to handle the load, 3) atomizes the fuel for mixing with air in the combustion
chamber, and 4) permits continuous fuel flow. The injector is controlled by action of the engine governor.
3-62. Removal
a Refer to figure 3-13. Remove the valve rocker cover.
b. Remove the fuel pipes from both the injector and fuel manifold.
CAUTION
Upon removal of the fuel lines, cover the injector filter caps to prevent dirt or foreign material from entering the injector.
Also cover the fuel manifold openings.
c. Crank the engine to bring the outer ends of the push rods of the injector and valve rocker arms in line horizontally.
d. Remove the two rocker shaft bracket bolts and swing the rocker arms away from the injectors and valves.
e. Remove the injector clamp bolt, special washer and damp.
f Loosen the inner and outer adjusting screws on the injector rack control lever and slide the lever assembly away
from the injector.
g Lift the injector from its seat in the cylinder head.
h Cover the injector hole in the cylinder head to prevent dirt or foreign material from entering the engine.
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