kennyd
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You can engage the rear PTO while off-the-seat by lifting the seat and then pulling the seat switch UP-at least that's the way my 4110 is...
JD 4100 battery light
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jenkinsph
Super Star Member
Try to perform the test completely so we can better determine your problems.
steve
steve
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johndeere4720
Member
Well, I was able to engage the rear PTO at idle and was getting 13.6 volts, then I shut off the PTO and was still getting 13.6 volts.
jenkinsph
Super Star Member
Was that a fast idle? If it was that seems low to me. On your tractor is this a belt drive alternator? May want to check the belt tension. If you raise the engine speed to a fast idle it should rise above 14.0 volts when battery is fully charged.
13.6 volts will allow for a slow charge to your battery, if you can add the pto and lights at a fast idle and still maintain this you might be okay. I doubt from your measurements that the pto clutch is the problem and you should be able to mow with it without harm. I would think your alternator is not keeping up but a bad battery can drag down the voltage too. I think it would be wise to take the battery in and have it load tested to help eliminate it as a source of the problem. If the battery checks out good and is replaced fully charged then you should get readings near 14.0 volts when running. If not then I would remove the alternator and have it tested and or repaired.
Steve
13.6 volts will allow for a slow charge to your battery, if you can add the pto and lights at a fast idle and still maintain this you might be okay. I doubt from your measurements that the pto clutch is the problem and you should be able to mow with it without harm. I would think your alternator is not keeping up but a bad battery can drag down the voltage too. I think it would be wise to take the battery in and have it load tested to help eliminate it as a source of the problem. If the battery checks out good and is replaced fully charged then you should get readings near 14.0 volts when running. If not then I would remove the alternator and have it tested and or repaired.
Steve
