Bench Testing: Armature
WARNING: This page is about a different car, the 2004 Suzuki Aerio, 2003 Suzuki Aerio, and 2002 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect commutator for dirt or burn spots. See Fig 1 . Correct with sandpaper or lathe as necessary.
- Check commutator for uneven wear with the armature (1) supported on V-blocks (2). See Fig 2 . If deflection of dial gauge (4) pointer exceeds limit, repair or replace. See STARTER SPECIFICATIONS
- Inspect the commutator for wear. See Fig 3 . If diameter is below limit, replace the armature.
- Inspect the commutator (1) for insulator (2) depth. See Fig 5 . Correct or replace if it is below the service limit.
- Check the commutator and armature core. See Fig 4 . If there is continuity, the armature is grounded and must be replaced.
- Check for continuity between segments. See Fig 4 . If there is no continuity at any test point, there is an open circuit and the armature must be replaced.
NOTE:
The following specification presupposes that the armature is free from bend. Bent armature must be replaced.