TM 10-3930-664-24 4.     RELEASE    HIGH    PRESSURE    FUEL    LINES    (17) FROM FOUR TUBE BRACES AT TOP OF INTAKE MANIFOLD COVER (16). a. Remove  screws (19) and washers (20) securing front tube braces (21) to rear tube braces (22). b. Separate  fuel  lines  (17)  from  vibration  isolators (23). 5.     REMOVE FUEL DRAIN LINES (24, 27, 31). a. Disconnect      drain   line   (24)   from       tee    (25). Remove and discard grommet seal (26). b. Disconnect      drain   line   (27)   from       tee    (25). Remove and discard grommet seal (28). c. Remove    drain    line  (27)  from    engine  block  by removing screw (29) and grommet seal (30). d. Disconnect      drain   line   (31)   from       tee    (25). Remove and discard grommet seal (32). 2-99