October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

LUCAS Alternators: Overhaul: Testing: Diodes

Connect a 12-volt battery and a 1.5-watt test lamp in turn to each of the 9 diode pins and its corresponding heat sink on the rectifier pack, then reverse the connections. Lamp should light (with current flow) in one direction only. If lamp lights in both directions or fails in either, rectifier pack must be renewed.