Santa Fe FWD V6-2.7L (2007)
5. Measure the commutator (A) runout.
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If the commutator runout is within the service limit, check the commutator for carbon dust or brass chips between the segments.
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If the commutator runout is not within the service limit, replace the armature.
Commutator runout
Standard (New): 0.02 mm (0.0008 in.) max
Service limit: 0.05 mm (0.0020 in.)
6. Check the mica depth (A). If the mica is too high (B), undercut the mica with a hacksaw blade to the proper depth. Cut away all the mica (C)
between the commutator segments. The undercut should not be too shallow, too narrow, or v-shaped (D).
Commutator mica depth
Standard (New) : 0.5 mm (0.0197 in.)
Limit : 0.2 mm (0.0079 in.)
7. Check for continuity between the segments of the commutator. If an open circuit exists between any segments, replace the armature.