Takeuchi TB 175 Handbuch Seite 864

9. Starting motror
(d)Armature and commutator run-out
Use a dial gage and measure the armature core run-out
and commutator run-out. Correct or replace if the limit is
exceeded.
Standard
Armature
Commutator
Commutator surface inspection
(e)
If the commutator surface is roughened, grind with #500
to #600 emery cloth.
Commutator insulation depth
(f)
Measure the depth of the insulating material between
commutator segments, and correct it if it is less than the
limit.
Standard
0.5 to 0.8
Limit
0.03 0.2
0.03 0.2
mm
Limit
0.2
Commutator
mm
Commutator
Commutator Insulating
segment material
Abnormal
148
Armature
Fig. 13
Fig. 14
Hack-saw
Commutator
0.5 0.8mm
Normal
Fig. 15