Invacare M51, M50, M61 service manual Motor Testing, Battery Quality

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Charger Digital

Port Voltmeter

BATTERY

QUALITY

0 to 2 volts	Good
2 to 2.5 volts	Poor
2.5 or more	Bad

FIGURE 3.1 Field Load Test

Motor Testing

NOTE: For this procedure, refer to FIGURE 3.2.

1.On the 4-pin motor connector, locate the two contacts in the RED and BLACK housings.

2.Set the digital multimeter to measure resistance (ohms).

3.Measure the resistance between the two motor contacts.

Cap

Motor

NOTE: A normal reading is between .5 and 5 ohms. A reading of 0 ohms or in excess of 15 ohms indicates a problem. High readings are generally caused by bad connections and/or damaged brushes. Contact Invacare.

4 Pin Motor

Connector

FIGURE 3.2 Motor Testing

Part No. 1125075 31 Pronto® Series