TROUBLE SHOOTING
Note. See TROUBLE SHOOTING article in GENERAL INFORMATION.
ON-VEHICLE TESTING
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.
NO-LOAD TEST
Under no-load state, measure starter's rotating speed and current, using the specified battery. Measured values must meet the standards. (Scheme 3)
Scheme 3
LOAD TEST
| CAUTION | Change engagement position of overrunning clutch and make sure it is not slipping. |
Perform this test to check maximum output of starter. Use test bench which is able to apply load (brake) to starter. Measure torque value and rotating speed under the specified voltage and current conditions while controlling braking force applied to starter. (Scheme 4)
Scheme 4
STALL TEST
Using the same test equipment used for load test, apply brake to lock starter armature. Then measure voltage, current, and torque values. Measured values must meet standards. (Scheme 5)
Scheme 5
Return Test
Connect 2 battery negative leads onto terminal 50 and onto switch body respectively. (Scheme 8) Then connect battery positive lead onto terminal C. Next, disconnect lead from terminal 50. Pinion should return immediately.
