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 TM 9-2320-211-34-2-4
FRAME 3
S l i d e quartz rod (1) into tube (2) of flame detector switch (3). Place bow
1.
s p r i n g (4) on microswitch frame (5). F l i p microswitch (6) down into place.
S c r e w in adjusting screw and washer (7) and push up on bow spring (4) while
2.
t i g h t e n i n g adjusting screw (7).
T i g h t e n screws (8) just tight enough so microswitch (6) is held in place.
3.
S l o w l y unscrew adjusting screw (7) until microswitch (6) clicks. Screw in
4.
a d j u s t i n g screw (7) exactly threefourths of a turn more.
T i g h t e n screws (8).
5.
END OF TASK
19-67
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