• Testing Drive Motors
• Testing Steps:
1. Unbolt heavy phase wires from Drive Motor Controller
2. Set DMM to Resistance
3. Test for resistance between heavy GREEN & YELLOW wires
4. Test for resistance between heavy GREEN & BLUE wires
5. Measurements should be nearly identical
a. Typical resistance should be ~0.1 Ohms
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Drive Motors / Hall Sensor
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Deck Motor
Controller
Phase Wires
• Testing Drive Motor Hall Sensor
• Testing Steps:
1. Power mower on and raise rear-end so wheels don’t move mower
2. Set DMM to DC Volts
3. Measure with red probe to RED wire and black probe to BLACK wire
a. Measurement should be 4v-5v
4. Move red probe to YELLOW wire and slowly rotate motor
a. Voltage should jump between 0v and 4v-5v
5. Repeat with GREEN and BLUE wires
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