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techtalk:ih:engctl02a [2020/03/09 03:03] ixl2relax [Bench Testing an Ironhead Solenoid] |
techtalk:ih:engctl02a [2020/03/09 07:47] ixl2relax [Bench Testing an Ironhead Solenoid] |
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| **To test the pull-in coil**: | **To test the pull-in coil**: | ||
| - Insert a deep socket part way into solenoid. | - Insert a deep socket part way into solenoid. | ||
| - | - Connect battery -ve to the short stud of the solenoid. | + | - Connect battery -ve to the large short stud of the solenoid (normal output to starter motor). |
| - | - Momentarily apply +12 volt jumper wire to the (thin/small) terminal of the solenoid. | + | - Momentarily apply +12 volt jumper wire to the small terminal of the solenoid (normally from the starter relay). |
| - The socket should pull in. \\ Leave it pulled in to test the hold-in coil. | - The socket should pull in. \\ Leave it pulled in to test the hold-in coil. | ||
| **To test the hold-in coil**: | **To test the hold-in coil**: | ||
| - | - Move the battery -ve jumper from the short stud to the solenoid case. | + | - Move the battery -ve jumper from the large short stud to the solenoid case. |
| - | - Apply +12 volts to the (thin/small) terminal and leave it connected. | + | - Apply +12 volts to the small terminal and leave it connected. |
| - | - Try to pull the socket out of the solenoid. \\ The hold-in coil should resist your effort to pull the socket out while +12 volts is applied to the (thin/small) terminal. | + | - Try to pull the socket out of the solenoid. \\ The hold-in coil should resist your effort to pull the socket out while +12 volts is applied to the small terminal. |
| - | - Remove the +12 volts from the (thin/small) terminal. \\ The socket should slide easily back out of the solenoid. | + | - Remove the +12 volts from the small terminal. \\ The socket should slide easily back out of the solenoid. |
| - | **To load test the contact plate of the solenoid**: \\ | + | **To load test the high-current contact plate of the solenoid**: \\ |
| A headlight bulb works well for this. | A headlight bulb works well for this. | ||
| - Jumper from batt +ve to to +ve of light. | - Jumper from batt +ve to to +ve of light. | ||
| - | - Jumper from long stud to -ve of light. | + | - Jumper from large long stud to -ve of light. |
| - | - Jumper from batt -ve to short stud. | + | - Jumper from batt -ve to large short stud. |
| - Manually push in the plunger. \\ The bulb should light up. | - Manually push in the plunger. \\ The bulb should light up. | ||
