Free Running Test

Free Running Test:

1. Place starter motor in a vise equipped with soft jaws and connect a fully-charged 12-Volt battery to starter motor as follows:
2. Connect a test ammeter (100-Ampere scale) and carbon pile rheostat in series with battery positive post and starter motor terminal.
3. Connect a voltmeter (15-Volt scale) across starter motor.
4. Rotate carbon pile to full-resistance position.
5. Connect battery cable from battery negative post to starter motor body.
6 Adjust the rheostat until the battery voltage shown by the voltmeter is 11.5 V (for the direct-drive type) or 11 V (for the reduction-drive type).
7. Confirm that the maximum amperage is within the specifications and that the starter motor turns smoothly and freely.
Current: Max. 60 Amps (Direct drive type)
Current: Max. 90 Amps (Reduction drive type)