Opel 1900 1973, Руководство по обслуживанию

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14 1973 OPEL SERVICE MANUAL
6. Remove shift lever shaft lift armature
shift lever assembly.
7. Drive back retaining ring on armature shaft. See
Figure
8. Take the lock ring, retaining ring, and
ning clutch and pinion off armature shaft.
groove in shaft for burrs and remove with a soft tile.
Cleaning and Inspecting Parts
Clean and check all parts. Replace defective parts.
2. Turn down worn or burnt on a good
precision lathe. Use a spindle between 2,000
and 3,000 RPM. See Figure When turning
down commutator, adjust cutting depth of tool
that no more pits exist after
Do not
remove any more material than necessary, however,
because if commutator diameter less than 1
inches, armature must be replaced.
3 0 1 6 6
Figure 1B-6 Turning Down Commutator
3. Undercut mica approximately below com-
mutator surface. Finish and thoroughly clean
4. Check armature for short circuit on a
5. With a test lamp, check armature for ground.
lamp must not light up. See Figure
Figure 1B-7 Testing Armature for Grounds
6. Check armature for an open circuit on a growler.
Considerable variation in readings between in-
dividual commutator bars would indicate an open
circuit.
7. Visually check coils. Replace burnt or
scorched coils.
8. With a test lamp, check coils for ground. See
Figure Test lamp must not light up.
grounded coil.
Figure lB-8 Checking Field Coils for Ground
Replacing Field Coils
1. Mark locations of pole shoes to avoid incorrect
installation.
Figure 1B-9 Removing Pole Shoes