FUEL SYSTEM ABNORMAL CONDITIONS
THIS WORK PACKAGE COVERS:
WP 0020 00-1
Troubleshooting Table and Diagnostic Tests
General mechanic’s tool kit (item 121, WP 0176)
Container (minimum 2 gallon/7.5 liter capacity)
Track Vehicle Repairer (2) 63H10
Engine installed in vehicle or ground hop.
Air in system.
(1) "Purge" fuel system.
Turn master and
in-tank fuel pump switches to "ON".
Operate in-tank fuel pump for 1 or 2
Simultaneously operate purge
pump, completing 4 or 5 strokes after firm
handle pressure is noted.
Do not depress flame heater button.
Damage to engine could occur.
Occurred during fuel filter replacement,
engine or power pack installation, or long
(2) With in-tank pumps operating, open bleeder
valves (on cover of both primary and fuel/
water separator filters) until all fuel (no air)
Return fuel restriction.
(1) Refer to Malfunction 10 in this work
Damaged fuel hoses (fuel pump to filter, or
filter to fuel injection pump).
(1) Remove and install new hoses (WP 0084,
Fuel/Water Separator Automatic Drain
System and Wiring Harness Replacement).
Water contaminated fuel.
Automatic drain system inoperative.
(1) Refer to Malfunction 12 in this work