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TM 9-1220-220-34
4-5.
BALLISTICS DRIVE INSTALLATION (CONT)
FRAME 7
Step
Procedure
1.
Turn index (1) on trunnion link (2) until "O" mark (3) is lined up with qualifying mark (4)
on bearing cap (5), tighten four screws (11).
2.
Look and see if fire control (6) bubble is centered. If not centered, go to step 3. If
centered, go to frame 8.
3.
Using wire cutters, cut lockwire (7).
4.
Using 15/16" open end wrench, loosen two screws (8) and (9).
5.
Using 1 1/4" open end wrench, turn adjuster arm (10) until fire control level (6) bubble
is centered.
6.
Using 15/16 open end wrench, tighten two screws (8) and (9).
7.
Using lockwire tool, install new lockwire (7) (JPG).
GO TO FRAME 8
4-28
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