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Page Title:
Table 3-2. Table of inspection for Parts Normall Replaced at Overhaul |
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 Table 3-2. Table of inspection for Parts Normall Replaced at Overhaul
Part identification
Type
of
Acceptability
Inspection
inspection
remarks
procedure
Number
Names
Brush
30010-1026
Visual
Check for cracks, chipped edges,
Replace for any of these conditions
loose or frayed wire. Lateral wear
groove in edge of brush is minimum
worn length.
Ball Bearing
Replace if defective
Visual
Inspect for binding or excessive
JH203-35
looseness
Insulation Plate
G300-199
Visual
Check for cracks
Replace for this condition
Insulating Tube
05-631120
Visual
Check for cracks
Replace for this condition
Insulating Washer 0 5 - 3 7 4 0 3 6
Visual
Check for cracks
Replace for this condition
Brush Spring
30010-1039
Visual
Check tension
Replace if not between 45 and 54
ounces
Mechanical
Replace if not within limits
Dampener Spring
G26-138
Inspect for binding or excessive
length approximately 0.468 inches.
Test that force required to com-
press spring to 0.375 inches is 34-
38 pounds
Armature Assembly 30010-1020
I n s p e c t commutator for pitting
Visual and
Replace armature if commutator is
worn below a minimum diameter of
Electrical
caused by electrical failure. Burned
adjacent bars indicate either open
3.187 inches. Replace if electrical
tests indicate a shorted, open
or shorted circuits in windings. A
circuited or grounded condition.
complete electrical test should be
performed before reconditioning
commutator
Dimensional
Replace if diameter is below this limit
Check bearing Journal diameters-
minimum 1.1810 in.
Visual and
Inspect for damage to coils, loose pole
Replace if coils are damaged whether
electrical
shoes and electrically as outlined in
visually or electrically. (Restake
paragraph 3-14d (2). Pole shoes
a t t a c h i n g screws if they are
can be tightened by turning at-
tightened),
taching screws clockwise
Table 3-3. Table of inspection
Type
Part identification
Acceptability
of
Inspection
inspection
procedure
Number
remarks
Names
Replace for any of these conditions
Check for cracks, warpage and
Bearing and
damaged screw threads in brush
Brush holder
holder
Replace if diameter exceeds this limit
Check bearing bore diameter
Support Assembly
Dimensional
maximum 2.4409 inches
Check for cracks and warpage
Replace for either condition.
Dampener Pressure 30010-1031
Visual
Plate
Replace for any of these conditions
Dampener Friction
Inspect for damaged splines also
cracks and warpage
Plate
Replace for any of these conditions.
Shaft
30010-1029
Visual and
Inspect for damaged splines warpage
Mechanical
and damaged threads. Inspect also
for hidden cracks by elec-
tromagnetic process.
3-12
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