TM 5-3805-262-34
2-5. FUEL SYSTEM TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. FUEL INJECTION PUMP NOT OPERATING PROPERLY (Cont).
Step 11.
Step 12.
(Cont).
Back out swivel lever adjusting
screw three turns (12 clicks).
Position fuel control lever
towards no load governed speed
adjustment screw until governor
setting protractor scale indi-
cates 50 degrees. Adjust no
load governed speed adjustment
screw until it just touches
control lever. Release control
lever and push back until it is
stopped by no load governed
speed adjustment screw.
Protractor scale shall indicate
50 degrees. If necessary, read-
just no load governed speed
adjustment screw. Tighten nut
when adjustment is complete.
Turn on test bench and operate
fuel injection pump at 1140 to
1150 rpm.
Push back fuel injection pump fuel control lever against no load
governed speed adjustment screw while watching rack travel dial
indicator. Dial indicator should indicate 0.441 inch.
Turn off test bench.
a. If rack travel dial indicator indicates 0.441 inch, go to step
14 below.
b. If rack travel dial indicator does not indicate 0.441 inch, ad-
just swivel lever adjusting screw. Do this by moving control
lever to stop position then adjusting screw. Turning adjusting
screw clockwise one click increases rack travel 0.0098 inch. Go
to step 12 below.
Turn on test bench and operate fuel injection pump at 1140 to 1150
rpm.
Push back fuel control lever against no load governed speed adjust-
ment screw and check that rack travel dial indicator indicates ex-
actly 0.441 inch.
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