Adjusting the axial clearance of the drive gear
1. Disconnect the stator winding wire from the terminal "M" traction relay.
2. Connect the wires from the 12V battery terminals (through the switch) to conclusions "S" (+) And "M" (-) traction relay.
3. Set the switch to position "ON", while the starter drive gear will move forward until it stops.
Attention: this check must be carried out quickly, no more than 10 seconds, to prevent burnout of the starter winding.
4. Use a feeler gauge to measure the end play between the pinion gear and stop ring.
- Rated gap: 0.5-2.0mm
5. If the axial clearance does not correspond to the range of nominal values, then adjust it by installing or removing shims between the traction relay and the starter front bracket.
Checking the retracting winding of the traction relay
1. Disconnect the stator winding wire from the terminal "M" traction relay.
2. Connect the wires from the 12V battery terminals to the terminals "S" (+) And "M" (-) traction relay.
Attention: this check must be carried out quickly, no more than 10 seconds, to prevent burnout of the starter winding.
3. If the drive gear extends, then the retracting winding of the traction relay is working. If the drive gear does not extend, then replace the traction relay.
Checking the holding winding of the traction relay
1. Disconnect the stator winding wire from the terminal "M" traction relay.
2. Connect the wires from the 12V battery terminals to the terminal "S" (+) and starter housing.
Attention: this check must be carried out quickly, no more than 10 seconds, to prevent burnout of the starter winding.
3. If the pinion gear, extended manually to the stop, remains in the extended position, then the holding winding is in good condition. If the gear retracts, then there is a break in the holding winding. In this case, replace the traction relay.
Checking the return of the armature of the traction relay
1. Disconnect the stator winding wire from the terminal "M" traction relay.
2. Connect the wires from the 12 V battery terminals to the terminal "M" and starter housing.
Attention: this check must be carried out quickly, no more than 10 seconds, to prevent burnout of the starter winding.
3. Extend the drive gear by hand and release. If the drive gear immediately returns to its original position, then the traction relay is working properly. If not, replace the traction relay.
Idle test
1. Assemble the unloaded test circuit as shown in the figure.
2. Adjust the battery voltage with a rheostat so that the voltmeter shows a value of 11 V. Check that the maximum current consumption corresponds to the nominal value, and also that the starter armature rotates freely, without jerking or jamming.
- Rated current (no more): 90 A
- Rated speed (minimum): 3000 rpm
