504 charging system

Animal · Nov 2, 2010

I have an idiot light for amps on this tractor and it has started blinking, it does not stay on it just blinks, at pto speed it stays off. Before I start checking things out I thought I would see if anyone else had this experience.

TractormanNC · Nov 2, 2010

The stock bulb is a flasher bulb, got your attention didn't it??

Sounds like your generator is weak and needs to be checked or rebuilt.

Janicholson · Nov 2, 2010

Both the alternator equipped and generator equipped 504 tractors have an external regulator.
Both have brushes in the rotating part of the Gen/Alt.
I would look to replacing the brushes in either as a first attempt. New bearings and a dressing up of the commutator (gen only) are wise as well.
Checking the charge voltage will also indicate issues.
14.2 to 14.6 is good at 3/4 throttle with a Gen, above idle with a alternator.

Jim

Allan in NE · Nov 3, 2010

First place I'd check is that fan belt 'cause it sure sounds as tho it's slipping.

If the belt is good and tight, think you have lost a leg on the stator. Kind of unusual on a farm tractor tho as they just don't have much of a heavy load demand.

Allan

Allan in NE · Nov 3, 2010

First place I'd check is that fan belt 'cause it sure sounds as tho it's slipping.

If the belt is good and tight, think you have lost a leg on the stator. Kind of unusual on a farm tractor tho as they just don't have much of a heavy load demand.

Allan

504 charging system

Animal

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TractormanNC

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Janicholson

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Allan in NE

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Allan in NE

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