ARMY TM 9-2815-255-24
AIR FORCE TO 38G1-95-2
MARINE CORPS TM 2815-24/4
Install throttle shaft assembly (18) partially through its bore in housing. Slide barrel and spacer (20) and throttle
shaft lever (19) over throttle shaft so that projection in lever (19) engages rear key way on shaft. Position forked
end of throttle lever so it straddles guide stud, refer to FIGURE 3-84.
Slide damper barrel assembly (41) over damper piston (43) and slide throttle shaft assembly (18) through
damper barrel (41), throttle shaft spacer (20), and throttle lever (19).
With throttle shaft assembly (18) in low idle position and governor control spring relaxed, forked end of throttle
lever (19) should straddle and engage flats on bushing (8, FIGURE 3-46). Adjust low idle screw (39, FIGURE 3-
45) until forks of lever make contact with flats on bushing. Tighten low idle lock nut (40) 30 to 35 in-lbs (3.5 to 4
FIGURE 3-84. Installing Throttle Shaft Assembly (Typical)
Turn adjusting cap (2, FIGURE 3-46) counterclockwise (from transfer pump end) to end of adjustment, then turn
clockwise 1/16 of a turn. This prevents binding between control rod bushing (8) and throttle shaft lever (19,
Install shutoff shaft assembly (30) through its bore using a slight rotary motion so as not to damage seal ring (22).
H throttle shaft lever (19) is correctly installed, rotating throttle shaft assembly rearward will cause compression
of governor spring (7, FIGURE 3-46).
Invert pump and holding fixture in vise.
If head locating screw (52, FIGURE 3-45) is not seated properly Into head, seal may be sheared
Install new preformed packings (53) on head locating screw (52). Apply a light film of general purpose grease
(630AA) to screw. Insert screw and thread deeply into head, hand tight. Using deep well socket, tighten screw
15 to 18 ft-lbs (20.3 to 24.4 Nm).
Sides of housing near advance boss are marked 'C' to denote pump rotation. The power piston
side is located on side marked 'C' for clockwise rotation.
Install slide washers (70).
If necessary, install new seals (81 and 82) on plug (65)