TM 10-3930-669-20 4-3.  FUEL SUPPLY PUMP REPLACEMENT. This task covers: a. Removal b. Cleaning/Inspection c. Installation INITIAL SETUP Tools and Special Tools (Item 1, Appendix B) Wrench, Torque (0 to 175 lb-ft [0-237 N•ml) (Item 2, Appendix B) Materials/Parts Solvent, Drycleaning (Item 20, Appendix C) Seal Washer, Lock (3) Equipment Condition Engine OFF (TM 10-3930-669-10) Parking brake applied (TM 10-3930-669-10) Wheels chocked (TM 10-3930-669-10) Cab removed (Para 15-2) a. Removal. (1) Remove three nuts (1), lock washers (2), and fuel supply pump (3) from injection pump (4).  Discard lock washers. (2) Remove seal (5) from fuel supply pump (3).  Discard seal. 4-4