TM 10-3930-671-24 FIGURE 5.7a STEP 7 While holding the assembly carefully so the rotor will  not  fall  out,  invert  the  entire  unit  so  it  rests  on  the weight retainer. Assemble the rotor retainers to the head and rotor with the cutout portions meeting over the rollpin hole in the hydraulic head (Figure 5.7a). Place  the  liner  locating  ring  over  the  rotor  retainers  and bottom it against the head (Figure 5.7b). Position the split in the ring 90° from the split in the retainers. FIGURE 5.7b. STEP 8 Install the new transfer pump end cap seal into the  hydraulic  head  (Figure  5.8).  This  seal  has  an  oval cross section and can be identified by rolling it between the fingers. Be sure to push the seal all the way into its groove. FIGURE 5.8. FIGURE 5.6a. F-237