Fig. 7.56. Scheme of adjustment of axial clearance of the drive gear
Connect the wires from the 12 V terminals of the battery (via the switch) to the terminals "S" (+) and "M" (–) of the traction relay (Fig. 7.56).
Set the switch to the "On" position, which will cause the starter pinion to move forward as far as it will go.
Attention! This check must be carried out quickly, no more than 10 seconds, to prevent burnout of the starter winding.
Fig. 7.57. Checking the axial clearance of the drive gear
Using a feeler gauge, measure the axial clearance between the pinion gear and the limiting ring. If the axial clearance is not within the nominal range, adjust it by installing or removing adjusting shims between the traction relay and the front starter bracket (Fig. 7.57).
Nominal clearance: 0.5–2.0 mm.