TM 10-3930-671-24 FIGURE 5.13b. STEP   14   Rotate   the   head   assembly   until   the   head locking   screw   holes   line   up   with   their   corresponding holes in the housing. Insert the two head locking screws finger  tight  (Figure  5.14).  Do  not  tighten  with  a  wrench until STEP 27. To     prevent     the     governor     weights     from     becoming dislodged from the retainer, a drive shaft should now be installed in the pump. When the pump is fully assembled, the   throttle   should   be   wired   in   the   wide   open   throttle (WOT) position and the shaft may then be removed. STEP  15  Install  the  vent  wire  screw  assembly  (Figure 5.15). Tighten to 25-30 in.-lbs. (3-3.5 Nom). FIGURE 5.15. STEP  16  Assemble  the  metering  valve  arm,  shim  and spring   to   the   metering   valve   (Figure   5.16a).   Exercise care not to distort any of the components. FIGURE 5.16a. FIGURE 5.14. F-241