Doc. #: A-718C, Rev. 1
Page 30 of 36
8.1.13 Put the hand wheel (item 1) on the stem and run it up and down to be sure the stem moves freely.
Figure 8-20 Place Hand Wheel on Stem
8.1.14 Tighten the packing screw to
30
±
3
ft-lb (
40
± 4 N·m) to seat the Teflon
®
packing rings
. Prevailing drag on
stem due to
packing
will be about
3 ft-
lb (4 N·m).
Figure 8-21 Tighten Packing Screw
8.1.15 Apply grease to the seat insert O-rings (item 33). Insert the two (2) seat insert O-rings into the O-ring
grooves located on the seat insert.
Figure 8-22 Install O-Rings on Seat Insert
