Testing the starter in full braking mode (VAZ-21011)

1. Brake the stand's toothed ring gear, turn on the starter and measure the current, voltage and braking torque, which for the 35.3708 starter should be no more than 550 A, no more than 7.5 V and no less than 13.7 N·m (1.4 kgf·m), respectively. For the ST-221 starter, the current should be no more than 500 A, and the voltage should be no more than 6.5 V. The starter engagement time should be no more than 5 s.

2. If the braking torque is lower and the current is higher than the specified values, then the reason for this may be an interturn short circuit in the stator and armature windings or a short circuit of the windings to ground.

3. If the braking torque and current consumption are lower than the values specified above, the cause may be oxidation and contamination of the commutator, severe wear of the brushes or a decrease in the elasticity of their springs, brushes hanging in the brush holders, loosening of the stator winding terminals, oxidation or burning of the contact bolts of the traction relay.

4. When the gear is fully braking, the starter anchor should not turn; if this happens, the freewheel clutch is faulty.

5. To troubleshoot, disassemble the starter and replace or repair damaged parts.

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