Testing Brake Switch - Ryobi RY48ZTR75 Service Manual

TESTING BRAKE SWITCH

1. Turn Power Off.
2. Disconnect brake switch connector.
3. Measure voltage at the contacts.
To test brake switch independently:
1. Power OFF Mower.
2. Set DMM to measure Resistance.
3. Connect DMM leads to black and red contacts.
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Continuity when plunger is NOT pressed.
High resistance when plunger pressed.
5.4V nominal when plunger depressed
Plunger
contacts