Service & Maintenance Question
I have a lawn tractor GT2254 and when I engage the PTO, it...
Service & Maintenance Question posted January 9, 2016 by Paul Jack
65 Views, 1 Comment
Question:
I have a lawn tractor GT2254 and when I engage the PTO, it causes the battery to discharge and pulls the battery down. What can I do to correct this?
Answer
Sounds like a partially shorted electric PTO clutch coil but could bad engine alternator. I have seen these electric PTO coils pull as much as 15 amps when partially shorted and still work.
For testing it depends what you have available in the line of test equipment. These coils usually have a resistance between 1.7 and 2.5 ohms and draws up to 7 amps; more likely around 4-5 amps. Anything over 7 amps is too much as you engine's alternator normally only produce 10-15 amps @3600 rpm. If the PTO coil current draw is normal then I would suspect a bad alternator. You do not need the engine running to do the current either as current will be the nearly same either way.
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