1943 Farmall H Regulator

1943 Farmall H
LHDB 4 Pos. Light Switch
12 Volt Generator
H4 Magneto ignition
C152 Engine

BAT on VR wires to ammeter same as BAT on relay wired to ammeter. Just use the same wire but now to BAT on the VR

ARM/GEN on VR wires to gennys ARM post same as ARM/GEN on the relay did.

REMOVE the wire from the gennys FLD post that used to wire to the LHBD switch (its no longer used) and instead wire the gennys FLD post to FLD on the VR. The switch can still control lights it just no longer connects to the genny

If its a 3 brush genny I wouuld adjust it (3rd brush) to the high charge setting.

You could use a 4 terminal VR if you want in which case loads like lights are fed from L on the VR instead of from the ammeteres load terminal as on the 3 terminal VR system

John T

karl f

Greg

• Wiring diagrams

Andy.