Magnetic Switch Pull-In Test

1. Disconnect the field coil wire from the M-terminal of the magnetic switch.

CAUTION: This test must be performed quickly (in less than 10 seconds) to prevent the coil from burning.

2. Connect a 12-volt battery between the S-terminal and M-terminal.
3. If the pinion moves out, the pull-in coil is good. If it doesn't, replace the magnetic switch.