119
Electrical system
Starter motor, replacement
(22B-01)
1
Disconnect the battery.
2
Disconnect the starter motor cables.
3
Slacken off the mountings and remove the starter
motor.
4
Install the starter motor and tighten the mountings.
5
Connect the starter motor cables
6
Connect the battery.
Starter motor, maintenance
(22B-02)
The starter motor must be removed from the en-
gine.
The brush unit can be removed from the rotor unit
the back plate has been removed.
Inspect the brushes to ensure that they move freely
in their guides and that the cable connectors move
freely. To check this, remove the spring holder and
spring from each brush and gently pull the move-
able connector. If the brush does not move freely,
remove it from its holder and clean the sides with a
material which is moistened with gasoline.
Ensure that the brushes are installed in their origi-
nal positions to maintain the original wear pattern.
The brushes must make good contact in alignment
with the shape of the commutator. If the brushes
have worn down to a length of 3.5 mm or less, the
brushes must be replaced.
The new brushes must be exactly the same type as
the originals. To ensure that the correct brushes are
installed, use only replacement parts from approved
manufacturers. To remove the grounding brushes,
remove the clip and pull back the brushes. To re-
move the field brushes, remove the insulation plate
and bus rail and the brush unit. Before placing the
brushes in their holders, the holders should be
cleaned with compressed air or material moistened
with gasoline.
The commutator must be absolutely clean. Dirt or
oil can be removed using a clean dry cloth (without
loose fibers). If the commutator is dirty (or is dis-
colored) it can be cleaned with fine carborundum
paper or similar. If this is not possible, send the
starter motor to a specialist for repair.
The brush unit and rotor unit can be installed to-
gether in the housing, but they will be drawn into po-
sition by the solenoids. Check that the thrust wash-
er is still in position in the front end of the rotor
shaft.
If the engagement unit etc needs repairing, the
starter motor must be sent to a specialist for repair.
Summary of Contents for MD22
Page 1: ...Engine repair MD22 TMD22 TAMD22 Workshop Manual 2 0 A ...
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Page 129: ...127 Notes ...
Page 130: ...128 Notes ...
Page 132: ...7738684 5 English 04 1999 ...