4630 PTO

Pair-a-dice farm · Jul 11, 2014

I was running a 7' rotary cutter with my 4630 Ford and my PTO stopped suddenly. My 3 pt hitch is also stopped working. The oil level in the rear end is good and the hyd. filter was changed earlier in the spring. Any ideas where to start looking? I looked in the archives but didn't find anything that helped. Thanks

RickB · Jul 11, 2014

Might have broken the driveshaft that goes through
the trans and drives the rear hyd pump and PTO.

Pair-a-dice farm · Jul 12, 2014

(quoted from post at 18:55:39 07/11/14) Might have broken the driveshaft that goes through
the trans and drives the rear hyd pump and PTO.

I changed the filter again to start with the simple stuff but it didn't help. The oil is a little milky. I'll have to wait until Monday to check into it more. Thanks

Jerry/MT · Jul 12, 2014

I believe that has an independent pto so the clutch pack is hydraulically actuated. If you have no hydraulic pressure than the pto won"t turn. Since the 3 pt doesn"t work, you may have failed the hydraulic pump or have a blown seal somewhere in the lift system. I suspect a problem in the hydraulic system. If it has remotes, do they work?

RodinNS · Jul 12, 2014

...and the pump is driven by the shaft that Rick is talking about.. I'd have put my wager on the input shaft at the flywheel, but it's a crap shoot really. Doubt it's the pump.

Rod

Pair-a-dice farm · Jul 12, 2014

(quoted from post at 19:09:08 07/12/14) ...and the pump is driven by the shaft that Rick is talking about.. I'd have put my wager on the input shaft at the flywheel, but it's a crap shoot really. Doubt it's the pump.

Rod

I don't have any pressure at the remotes either. Does the tractor have to be split to get to the input shaft or can it be seen when you take off the pump?

RodinNS · Jul 12, 2014

Most definitely has to be split. Personally... on that thing I'd probably start at the clutch housing and see what you get into. You may get 'lucky' and find the problem in there. If so unbolting the front flange from the transmission will access the PTO input shaft. If the internal shaft that Rick is talking about is broken... that will require complete removal of the transmission from the chassis, and IIRC, removal of the complete front cover assembly from the transmission... then pull the shaft out the back. It's not a small job. Just splitting those tractors more or less requires the removal of the steering pedestal. I hope you don't have a cab on it. If you do... just drive it off a cliff right now.

Rod

Pair-a-dice farm · Jul 13, 2014

(quoted from post at 18:06:28 07/11/14) I was running a 7' rotary cutter with my 4630 Ford and my PTO stopped suddenly. My 3 pt hitch is also stopped working. The oil level in the rear end is good and the hyd. filter was changed earlier in the spring. Any ideas where to start looking? I looked in the archives but didn't find anything that helped. Thanks

Thanks, that job sounds over my pay grade. I don't have a cab but I think I'll just bite the bullet and take it to town. Thanks.

Pair-a-dice farm · Jul 17, 2014

You guys were right it is the shaft. Thanks for the help.

4630 PTO

Pair-a-dice farm

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RickB

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Jerry/MT

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RodinNS

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Pair-a-dice farm

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RodinNS

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Pair-a-dice farm

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