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Lock Test

  1. Using starter bench tester, connect test equipment and lock starter armature. Engage tester momentarily while measuring starter torque, current draw and voltage drop.
  2. Check specifications for minimum torque, voltage drop (minimum volts) and current draw (maximum amps). See STARTER SPECIFICATIONS .
  3. Low current draw and no torque during lock test may be caused by excessive resistance between brushes and commutator. Normal current draw but low torque speed may be caused by a shorted commutator and/or poor insulation. Repair or replace starter if performance is not as specified.
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