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TM 9-4120-389-14
b.
Test (Installed)
(1)
Tag and remove leads.
(2)
Using multimeter and switch position chart shown in figure 4-41. Check continuity at contacts
indicated. With switch position closed, continuity should be indicated. With switch position open, no continuity
should be indicated. Check between each set of contacts and at each switch position.
(3)
If continuity requirements are not met, replace mode selector switch.
Figure 4-42. Switch Position and Terminal Location
c.
Removal
(1)
Remove four screws that secure cover to control module.
(2)
Loosen set screw on knob. Remove knob.
(3)
Tag and disconnect leads.
(4)
Remove nut and lockwasher from switch shaft. Remove switch from control module.
4-129
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