Checking Microswitches

1. Label wires before disconnecting from switch to ensure proper connection to switch terminals.

   Only terminals (A) and (B) are used.

   
   E38432-UN-21FEB95

   A - Common Terminal

   B - Normally Open Terminal

   C - Normally Closed Terminal

   Disconnect all wires from switch.

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2. Attach continuity tester leads to common (A) and normally open (B) terminals.

   • When switch lever is released, there should be no continuity through the switch.
   • When lever is depressed (click is heard), there should be continuity through the switch.
   
   

3. Move lead from normally open (B) to normally closed (C) terminal.

   • When switch lever is released, there should be continuity through the switch.
   • When lever is depressed (click is heard), there should be no continuity through the switch.
   
   

4. If continuity test results are not as described, replace switch.