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 TM 5-1940-277-20
TM 1940-20/2
TOOLS: 5/8 inch open end wrench
PARTS/MATERIALS: Engine Alarm Mute Switch
REMOVE:
NOTE
Port and starboard engine alarm mute switches are removed in the same manner.
1.
Using 5/8 inch open end wrench loosen two nuts (4) to remove protective boot (5) on front of switch plate (6).
2.
Pull switch (7) out from back of switch plate (6) until it is dear of plate opening.
3.
Remove four leads (8) from four tabs (9) on back of switch (7).
REPLACE:
NOTE
Teminals are replaced with jumper on inside tab.
1.
Install four leads (8) onto tabs (9) on back of switch (7).
2.
Install switch (7) thru back of switch plate (6). Flats on nut (10) must be parallel to switch plate (6) for switch to be
installed properly.
3.
Install protective boots (5) over switch and tighten two nuts (4) using 5/8 inch open end wrench.
3-105
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