TM 9-2815-225-34&P
3-63. FUEL PUMP TESTING AND CALIBRATION
THIS TASK COVERS:
a. Calibration Data
i. Throttle Lever Travel Adjustment
b. Fuel Pump Nameplate Data
j. Fuel Pump Idle Speed Check
c. Mounting Fuel Pump to Test Stand
k. Fuel Pump Main Pressure Adjustment
d. Fuel Pump Run-in (Big Cam I and Big Cam III)
l. Calibration Check Points
e. Fuel Pump Vacuum and Seal Test
m. AFC Plunger Setting Procedures
f. Fuel Pump Vacuum Adjustment
n. No-Air Screw Adjustment
g. Governor Cutoff RPM Check
o. Removing Fuel Pump From Test
Stand
h. Throttle Leakage
INITIAL SETUP:
APPLICABLE MODELS
PERSONNEL REQUIRED
All
Fuel and electrical systems repairman MOS 63G
SPECIAL TOOLS
REFERENCES (TM)
Fuel pump idle adjusting tool
TM 9-4910-778-14&P
(15434) 3375981
AFC fuel pump adjusting tool kit
TROUBLESHOOTING REFERENCES
(15434) 3375189
Para. 2-8
Level and angle indicator (15434) 3375855
EQUIPMENT CONDITION
TEST EQUIPMENT
Fuel pump removed (para. 3-16).
Fuel injection pump test stand (19204)
11020200
SPECIAL ENVIRONMENTAL CONDITIONS
Fuel injection pump test stand (use with Model
Work area clean and away from blowing dirt and
A8020 FITS only) (59678) DFP-156
dust
MATERIALS/PARTS
GENERAL SAFETY INSTRUCTIONS
Fluid, calibration (Appendix C, Item 12)
Diesel fuel is highly flammable. Do not perform fuel
Lubricant, high-pressure
pump testing and calibration procedures near fire,
(Appendix C, Item 15)
flames, or sparks.
LOCATION/ITEM
ACTION
REMARKS
a. Calibration Data
1.
PT (type G) AFC fuel pump
Test and calibrate on fuel pump
Fill fuel pump test stand with
(see page 3-461 and 3-462 for
test stand (see pages 3-450 through
calibration fluid (if calibration
identification of fuel pump
3-460) using the following
fluid is not available, use diesel
major components)
calibration data:
fuel).
3-448
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