1947 John Deere B

Herbert Johnson · Oct 8, 2009

Tractor is fully restored and runs great. My problem is the ampmeter is always at "0" but goes to a plus 10 when I turn the lights on and than it just stays at that point. Any suggestions>?

FWB in SK · Oct 8, 2009

Could you have the battery cables reversed and the generator is not charging at all. Frank

Greenday · Oct 8, 2009

Could be a sticking voltage regulator

John T · Oct 8, 2009

That tractor was originally Positive ground ya know, hows it connected now??? If the battery got reversed the ammeter will register bass ackwards which an ammeter wire swap side to side would cure as Rav was talkin about. The genny can still charge at EITHER Pos or Neg ground polarity if its Polarized, but if its a Voltage Regualtor system and was ran reverse polarity the VR may be damaged.

If it were mine Id install the battery at Pos ground (if not already),,,,,,,,Polarize the Genny (regardless),,,,,,,fire her up n say a few prayers n see what happens. The coil polarity (unless its a mag) needs to match the battery, for Pos ground its lil - wires to switch and its + to distributor, opposite that for Neg ground

I will post the URL link to my Troubleshooting Procedure in case she dont charge.

John T

John T's Troubleshooting
John Ts Troubleshooting

1947 John Deere B

Herbert Johnson

Member

FWB in SK

Member

Greenday

Well-known Member

John T

Well-known Member

Similar threads