TM 9-2910-226-34 Figure 3-118. Identification of tappet, outer plunger spring and spring seat. b. Installation. Install tappet assembly as follows: (1) Refer to figure 3-119. Install tappet assembly after alining tappet slot with tappet guide pin (D, fig. 3-116). Figure 3-119. Installing tappet assembly. (2) Refer to figure 3-120. Install plunger outer spring (A) and spring seat (B). Figure 3-120. Installing plunger spring seat. 3-73