How to check generator output?
Posted: Sat Mar 07, 2009 11:34 pm
Hi fellas. It's been a while since I've been on here. It's good to see that the board is growing and doing so well.
I need to pick your brains on an electrical problem. My cub is a 1957 model. I've got the standard 6v positive ground system. I restored it (with lots of help) a couple of years ago. I had the generator overhauled and installed a new wiring harness and voltage regulator. About half way through the first season it stopped charging reliably (became intermittent). It seemed that sometimes a little "whack" to the voltage regulator would make it start charging again. At the beginning of last year, I bought another regulator - thinking maybe I just got a bum one. It worked for a while but now does the same thing.
I doubt that two regulators would be bad. So now I'm thinking maybe generator. I took the generator off yesterday. I cleaned the contact points between the gen frame and the tractor so that the ground would be good. I also took some light grit sandpaper to the armature. After putting it back on (and polarizing) still no charge. How can I isolate the generator and check its output? The manual has some info, but I don't have any test equipment other than a digital multimeter.
The ammeter works correctly, and I've verified that the system is indeed not charging. The voltage across the battery is no different when the tractor is running or dead, and the tractor dies immediately when I disconnect the battery.
I appreciate any and all help.
Thanks,
Brian
I need to pick your brains on an electrical problem. My cub is a 1957 model. I've got the standard 6v positive ground system. I restored it (with lots of help) a couple of years ago. I had the generator overhauled and installed a new wiring harness and voltage regulator. About half way through the first season it stopped charging reliably (became intermittent). It seemed that sometimes a little "whack" to the voltage regulator would make it start charging again. At the beginning of last year, I bought another regulator - thinking maybe I just got a bum one. It worked for a while but now does the same thing.
I doubt that two regulators would be bad. So now I'm thinking maybe generator. I took the generator off yesterday. I cleaned the contact points between the gen frame and the tractor so that the ground would be good. I also took some light grit sandpaper to the armature. After putting it back on (and polarizing) still no charge. How can I isolate the generator and check its output? The manual has some info, but I don't have any test equipment other than a digital multimeter.
The ammeter works correctly, and I've verified that the system is indeed not charging. The voltage across the battery is no different when the tractor is running or dead, and the tractor dies immediately when I disconnect the battery.
I appreciate any and all help.
Thanks,
Brian