7.20
Section 7
Electrical System and Components
Wear Limit Length
7.6 mm (0.300 in.)
Mica Insulation
Commutator O.D.
Inspection
Drive Pinion
ȱȱȱȱȱDZ
ǯȱ ȱȱȱȱȱȱȱ
damage.
ǯȱ ȱȱȱȱȱȱȱȱ
mechanism for nicks, or irregularities which
could cause seal damage.
ǯȱ ȱȱȱȱ¢ȱȱȱȱ
housing and rotating the pinion. The pinion
should rotate in one direction only.
Brushes and Springs
ȱȱȱȱȱȱȱǰȱǰȱ
ȱǯȱȱȱȱȱȱǯȱȱ
ȱȱȱȱȱ 7.6 mm
(0.300 in.)ǯȱȱȱŝȬřřǯȱȱȱȱȱ¢ȱ
ȱȱ£ǰȱȱȱȱȱǯ
Figure 7-33. Checking Brushes.
Armature
ȱ ŗǯȱ ȱȱȱȱȱǻȱ
Ǽǯȱȱȱȱȱȱȱȱ
ȱȱȱǻǼȱȱȱȱ
ȱȱȱǯȱȱȱŝȬřŚǯ
Figure 7-34. Commutator Mica Inspection.
ȱ Řǯȱ ȱȱȱȱȱȱ¡ŗȱǯȱȱȱ
ȱȱȱěȱȱȱȱ
ǰȱȱȱȱ¢ǯȱȱȱ
ŝȬřśǯȱȱȱȱǯȱ¢ȱȱ¡ȱ
ȱȱȱȱȱȱǯ
Figure 7-35. Checking Armature.
ȱ řǯȱ ȱȱ¢ȱȱȱȱȱ
segments and the commutator segments. See
ȱŝȬřśǯȱȱȱȱȱ¢ǯȱȱ
¢ȱ¡ȱȱ¢ȱǰȱȱȱ
ȱǯ
ȱ Śǯȱ ȱȱȱȦȱȱ
shorting.
Shift Fork
ȱȱȱĞȱȱȱǰȱȱȱȱ
and contact areas are not excessively worn, cracked, or
ǯ
Continuity Check
Armature
Coil
Insulation
Check
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