Gilera Nordwest, Руководство по ремонту

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ELECTRIC STARTER 18
STARTER MOTOR
Removal
The electric starter may be removed with the engine in the frame.
Put ignition switch in the “OFF” position and disconnect the battery’s
negative (-) cable prior to starter motor maintenance.
Disconnect the starter’s cable.
Loosen the starter’s mounting bolts and remove the starter.
Remove the starter’s cover nuts and disassemble it completely (fig. 1).
Mark the position and the number of spacer washers.
Check the brushes and measure their length.
Check that the armature segments don’t show signs of overheating.
If the segments show signs of overheating in pairs, the windings are
leaking to ground.
Check the continuity in pairs of segments; there must be continuity
(fig. 2).
Check for continuity between the single segments and armature shaft;
there must not be continuity (fig. 3).
CASING INSULATION CHECK
Check for continuity between the cable terminal and starter casing and
between the cable terminal and brushes lead (fig. 4).
Replace starter if there is no continuity in the windings or if it’s shorted to
the casing.
Install the starter taking care in positioning the spacer washers.
Install the cover and fasten the two nuts.
Install the starter on engine and fasten mounting bolts.
Connect the supply cable to the starter and to the battery cable.
TROUBLESHOOTING
Starter motor doesn’t turn:
Weak battery
Ignition switch is defective
Starter motor switch is defective
Starter motor contactor is defective
Loose or disconnected wires or electrical cables
Starter motor turns engine slowly
Weak battery
Excessive resistance in the circuit
Locked starter motor
Starter motor turns, but engine doesn’t
Freewheel is defective
Starter motor gears are defective
Neutral gear or starter motor is defective
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