TM 10-3930-669-20 4-5.  FUEL PIPE REPLACEMENT (CONT). (6) Loosen four fittings (18) on injectors (12). (7) Remove fuel pipe assembly (19), three grommets (20), and grommet (21) from engine (3). (4) Remove   relief   valve   (13),   two washers (14), and fuel return pipe (10) from injection pump (15). (5) Loosen    four    fittings    (16)    and remove  fuel  pipe  assembly  (17) from injection pump (15). 4-12

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