Massey35
New member
I need some help with a charging problem on my 62 MF35 3cly diesel. It has a new VR (Delco 1118981) , new battery(neg ground) and wiring harness. I've had the genny (Delco 1100383) checked and it is good. The tractor starts strong and all gauges are working properly. The ammeter goes to - when the lights are turned on (tractor not running) and also goes to about 10-15 amps neg when the tractor starts and goes back to 0 and stays there at any rpm. I would say this is normal given that the battery is new but once the lights are turned on the ammeter goes to the - side and stays there no matter how much the rpms are increased.
Troubleshooting the electrical system isn't my expertise and I guess I try too hard to find the answer and confuse myself. I've read about polarizing and get confused about what I've read or been told. One place will say flash jumper the gen and the bat terminals on the VR with the tractor running. Then I will read about flash jumpering the field on the genny to the bat terminal. I've read today that there is a difference in gennys (A and B circuit) I can't find what type I have. Any help anyone can give me to get my charging system working I would appreciate. I've taken reading across the battery terminals with the tractor running at various rpm but see no changes. I can't say for sure that the gen is charging. What am I missing?
Troubleshooting the electrical system isn't my expertise and I guess I try too hard to find the answer and confuse myself. I've read about polarizing and get confused about what I've read or been told. One place will say flash jumper the gen and the bat terminals on the VR with the tractor running. Then I will read about flash jumpering the field on the genny to the bat terminal. I've read today that there is a difference in gennys (A and B circuit) I can't find what type I have. Any help anyone can give me to get my charging system working I would appreciate. I've taken reading across the battery terminals with the tractor running at various rpm but see no changes. I can't say for sure that the gen is charging. What am I missing?