On-Vehicle Testing: Notes
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The starter is required to produce a large torque and high rotating speed, but these starter characteristics vary with the capacity of the battery. It is therefore important to use a battery with the specified capacity whenever testing the starter.
The starter should be checked for the following 3 items:
- No-load test: Measure the maximum rotating speed and current under a no-load state.
- Load test: Measure the magnitude of current needed to generate the specified torque and rotating speed.
- Stall test: Measure the torque and current when the armature is locked.