Checks and inspections

1. Remove the split ring fastening the reversing gear.

1. Remove the protection plate from the differential drive gear.

1. Separate the differential drive gear from the reversing gear.

• If necessary, using special punches replace the bushes on the collector side support and drive side support.

CHECKS AND INSPECTIONS

• Clean the rotor, ring gear with internal teeth, the gear with transmission and the relay using only compressed air (max 4 bar) and a clean cloth. Never use liquid detergents. The other parts, such as for example screws and the rotor shaft may be washed with non inflammable liquid detergents to be found normally in commerce.

CAUTION: Carefully dry any washed parts, otherwise they might form explosive gases inside the sealed starter motor.

Checking the outside of the collector

• Check for any worn points; if necessary, proceed as follows:

• Tighten the rotor on the collector side and drive side support taking care not to damage the rotor shaft.

CAUTION: When turning do not tighten the rotor shaft in the chuck.

• Turn the collector using suitable tools ensuring that its diameter is within the specified measurements.

• Also check that the eccentricity of the collector and of the pack of plates is within the specified values.

• If there are annealed points or interruptions on the collector, change the rotor.