Alternator & Regulator: Adjustments
No periodic adjustment or maintenance is required on alternator assembly. Regulator voltage is preset and no adjustment is provided, except on 100-amp heavy-duty alternators used by Cadillac.
NOTE:
Adjustment of 100-amp alternators is accomplished by repositioning an external voltage adjustment cap in the slip ring end frame. For instructions, see Undercharged Battery, Heavy-Duty Alternator.