Generator won't charge anymore.

[clintonnut 126]

Hi,

My 652 stopped charging so I have been doing research on it. It has a newer voltage regulator, completely rebuilt generator which I opened today to inspect, new wires, new ammeter, new battery. It just stopped charging and now the battery is dead. I printed the troubleshooting manual off MTF and I am not getting a spark between F and A and not between F and Ground while engine is running.

Do you have any tips for getting it charging again? I don't want to have to buy a new regulator. Is there a way to fix the regulator? Maybe repolarizing?

Thanks

Charlie

[TT-(Moderator) 1,162]

Polarization of a motor/generator is unnecessary since battery power is applied to the armature when functioning as a starter motor.

I'm pretty sure that if you apply power to the field terminal you can "burn up" the regulator. Grounding the field terminal should force the generator to produce it's maximum output (

[clintonnut 126]

Well it fried a wire on it last week. Melted the insulation off the wire and grounded the regulator. I think the regulator is bad because there is one contact inside that if you push on it will try to start the tractor. Bad idea but good test. Now it doesn't do that. I have 2 regulators and both are bad.

Charlie

[W9JAB 156]

B)

I would try "Flashing" the gen

Residual magnetism in the generator exciter field allows the generator to build up voltage during start-up. This magnetism is sometimes lost due to shelf time or improper operation, among other reasons. Restoring this residual magnetism is possible and is sometimes referred to as "flashing the exciter field".

To restore the small amount of residual magnetism necessary to begin voltage buildup, connect a 12 volt battery to the exciter field while the generator is at rest, as follows:

1. Remove exciter field leads F+ and F- from the voltage regulator. CAUTION: Failure to remove the field leads from the regulator during flashing procedures may destroy the regulator.

2. Measure the exciter field resistance from the F+ to the F- lead. You should be able to read some resistance as you are measuring a continuous winding. An infinite resistance reading would indicate an open in the exciter field. Also check to be sure there is no path to ground.

3. Connect F+ to the positive pole of the battery.

4. Hold the F- lead by the insulated portion of the lead wire, touch F- to the negative pole of the battery for about 5 to 10 seconds, then remove.

5. Reconnect F+ and F- to the regulator. Repeat the procedure if the generator fails to build voltage.

also a good link

http://www.animations.physics.unsw.edu.au/...tricmotors.html

:party: