ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 5-40 (59)   Ensure the governor linkage gap is properly set up prior to calibration by performing the following: (a) Partially loosen the adjusting screw with (13379) wrench until the parts can move in relationship to one another but with some resistance. (b) Expand the linkage to the maximum gap.  Refer to Figure 5-53.  Insert thickness gap setting gage between the throttle shaft and the upright on the linkage hook.  Refer to Stanadyne Service Bulletin 95. (c) While holding the throttle lever in the wide open throttle position, close the gap to the thickness of the gage, press the linkage hook upright flush against the gage and tighten the linkage hook locking screw.    (d) Rotate the drive shaft 1/2 turn and recheck the gap to ensure it is within the specified tolerance. FIGURE 5-53.  SETTING GOVERNOR LINKAGE GAP (60)   Invert pump in vise.  Install new seal to head locating screw and install head locating screw to pump finger tight.