TM 5-6115-596-14
Table 5-4.
Sizes and fits
Wear limit
Fig.
Ref.
Letter
Point of measurement
No.
field
of new parts
(*)
1.1807 to 1.1811
a
Inside diameter of com-
5-18
mutator bearing
(*)
d
Diameter of armature
1.1810 to 1.1813
shaft journal
a-d
Fit of shaft in bearing
0.0001L to 0.0006T
b
Outside diameter of com-
(*)
2.4407 to 2.4400
mutator bearing
f
Inside diameter of hous-
2.4400 to 1.4409
ing bore
0.0003T to 0.0002L
b-f
Fit of bearing in bore
b
Outside diameter of com-
(*)
0.4407 to 2.4409
mutator bearing
(*)
2.4406 to 2.4409
Inside diameter of sup-
g
port bore
(*)
0.0004 to
0.0009
c
End play of armature
h
Brush spring tension
(measured at new
(*)
45 02 to 54 02
brush position
to wear
Brush wear length
j
groove
in side
of
brush
3.220
e
Diameter of commutator
3.3050 to 3.3190
5-43