Quantcast MALFUNCTION 6: Fuel injection pump deficiencies-continued - TM-9-2815-220-240149

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TM 9-2815-220-24
FUEL SYSTEM ABNORMAL CONDITIONS
0020 00
MALFUNCTION 6: (Continued)
Fuel injection pump deficiencies.
PROBABLE CAUSE
CORRECTIVE ACTION
f. (Continued) Manual fuel shut-off
(2) Check manual control for full travel or
malfunction (improper control linkage
disconnected linkage. Adjust or repair as
adjustment or internal failure).
required (WP 0040, Engine Operating
Parameters).
(3) Remove fuel injection pump shut-off cover
and inspect lever operation. If defective,
replace fuel injection pump (WP 0115, Fuel
Injection Pump Assembly Replacement).
g. Fuel control stuck in "No-Fuel" position
(1) Operate engine fuel shut-off (electric and
(result of improper preservative oil during
manual separately) six to eight times. This
long-term storage).
may free fuel control from stuck position.
Attempt engine start.
(2) Check fuel-metering operation as follows:
PROCEDURE
OBSERVATION
ANALYSIS
Install pressure test gauges:
100 psi gauge in fuel/water separator filter cover bleeder valve
opening (WP 0084, Fuel/Water Separator Automatic Drain
System and Wiring Harness Replacement).
10 psi gauge in primary filter cover bleeder valve opening
In-tank pump(s) operation
Turn master and in-tank fuel
5-7 psi at fuel/water
normal.
pump switches "ON".
separator filter and at
primary fuel filter.
Screens clogged or pump(s)
Below 5 psi at fuel/water
defective (refer to pertinent
separator filter and at
vehicle technical manual).
primary fuel filter.
PROBABLE CAUSE
CORRECTIVE ACTION
g. (Continued) Fuel control stuck in "no-fuel"  (3) Remove fuel shut-off cover and inspect fuel
position (result of improper preservative oil
control lever (lever is stuck when in
during long term storage).
extreme right position). Refer to pertinent
fuel injection pump technical manual.
(4) Manually move lever to the left, counter
clockwise, and alternately rotate (both
directions gradually) until full travel and
complete freeness of lever is obtained.
(5) Reinstall fuel shut-off cover and check
engine for normal start.
WP 0020 00-7

 


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