Attention. To prevent burnout of the winding, this check should be carried out as soon as possible (no more than 10 s).
1. Disconnect the field winding wire from the terminal «M» traction relay.
2. Connect the positive terminal of the battery to the terminal «S» and negative terminal to terminal «M» and to the starter housing.
3. Connect the excitation wire to the terminal «M».
4. If at the same time the drive gear is shifted to the engagement position, the retracting winding of the relay is OK. If this does not happen, replace the traction relay.
5. Disconnect the negative wire from the terminal «M».
6. If the gear does not move, then the holding coil of the electromagnet is working properly.
7. If the gear returns to its original position when the negative wire is disconnected from the housing, then the device is working properly.