Adjusting the gap between the end face of the gear and stop
1. Disconnect the starter motor excitation wire from the terminal «M» traction relay.
2. Use additional wires to connect the battery terminals to the terminals «S» And «M».
3. The drive gear should move to the engaged position.
Warning! This check must be carried out within 10 seconds, otherwise the solenoid of the traction relay may burn out.
Checking the retracting winding of the starter traction relay
1. Disconnect the starter motor excitation wire from the terminal «M» traction relay.
2. Use additional wires to connect the battery terminals to the terminals «S» And «M».
Warning! This check must be carried out within 10 seconds, otherwise the traction relay coil may burn out.
3. If the starter gear moves forward, the relay solenoid is good. If the gear does not extend, replace the traction relay.
Checking the holding winding of the traction relay
1. Disconnect the starter motor excitation wire from the terminal «M» traction relay.
2. Use additional wires to connect the battery terminals to the terminal «S» and traction relay housing.
Warning! This check must be carried out within 10 seconds, otherwise the traction relay coil may burn out.
3. If the drive gear extends to the engaged position, the turnip is good. If the gear repeatedly extends and returns to its original position, this indicates a break in the holding winding and it is necessary to replace the traction relay.
2. Connect test ammeter (with a scale of 100 A) and carbon rheostat, as shown in the figure.
3. Connect a voltmeter with a scale of 15 V in parallel with the starter.
4. Set the carbon rheostat to the off position.
5. Connect a wire from the negative plug of the storage battery to the case of a starter.
6. Set the rheostat slider to a position where the voltmeter will show a voltage of 11.5 V.
7. Turn on the starter and check the current drawn by the starter and make sure the starter shaft turns easily and smoothly.
Current consumption: no more than 90 A Armature speed, min-1: no less than 2800
Checking the return of the traction relay plunger
1. Disconnect the starter motor excitation wire from the terminal «M» traction relay.
2. Use additional wires to connect the battery terminals to the terminal «M» and traction relay housing.
Warning! This check must be carried out within 10 seconds, otherwise the traction relay coil may burn out.
3. Extend and retract the drive gear. If the gear quickly returns to its original position, the traction relay is working properly.