Armature Test
- To check armature for a grounded circuit, check continuity between commutator and armature coil core. See Fig 1
. No continuity should exist. Replace armature if continuity exists.
- To check for an open circuit, check continuity between individual brush segments at commutator end of armature. See Fig 1
. Continuity should exist between each individual brush segment. Replace armature if no continuity exists on any brush segment.
- Support armature in "V" blocks, with "V" block positioned at each bearing end of armature. Using a dial indicator, check armature runout at center of commutator and at end of armature. See Fig 2
. Replace armature if armature runout exceeds specification. See STARTER SPECIFICATIONS
.
- Using caliper, measure commutator outside diameter at center of commutator. See Fig 3
. Replace armature if commutator outside diameter is not within specification. See STARTER SPECIFICATIONS
.
- Measure insulator depth between commutator segments. See Fig 4
. Replace armature if insulator depth is not within specification.
Courtesy of HYUNDAI MOTOR CO.
Courtesy of HYUNDAI MOTOR CO.
Courtesy of HYUNDAI MOTOR CO.
Courtesy of HYUNDAI MOTOR CO.