Bench Testing: Stator
- Scribe end frames to facilitate reassembly. Remove through-bolts and separate end frames. Remove stator lead attaching nuts and remove stator. Using an ohmmeter, check stator grounds. See Fig 1 . Connect one ohmmeter probe to one stator lead and the other probe to the stator core.
- Ohmmeter should read infinite. If ohmmeter does not read infinite, replace stator. Repeat test with remaining stator leads. Stator cannot be checked for opens and shorts with ohmmeter.
- To reassemble alternator, reverse disassembly procedure. Retain the brushes with the brush retaining pin during reassembly. See Figure . Remove retaining pin after tightening through-bolts.
NOTE:
Manufacturer recommends using a new bearing whenever end frames are separated.