BobCat 753 – ALTERNATOR (90 AMP) – Alternator Regulator Test

Touch one probe to the “L” terminal (Item 1) and the other probe to the ground (Item 2) [Figure 60-31-15].

Reverse the probes to check in the other direction [Figure 60-31-16].

There should be continuity in one direction only. Meter readings should be different when probes are reversed. If there is no continuity or continuity in both directions, replace regulator.