JD720 PTO Clutch Oil Problem

chas036 · Jul 9, 2017

My pto will not stop turning even when disengaged. When I drained my pto clutch on my 720, the oil looks like it and smells like 90wt gear oil. I assume there is an oil seal between the pto assembly and the gearbox that is probably bad and allowing gear oil to pass into the pto assembly. How difficult is it to replace this seal, and does the whole pto clutch assembly need to be disassembled to do it?

cole in mo. · Jul 9, 2017

Wouldn't bet the farm on it, but I think the whole rear end has to come off.

johndeeregreg · Jul 10, 2017

have to take the rockshaft housing off of the axle housing. then there is 4 3/8 bolts that hold on the pto pump to the rock shaft housing, remove them and pry off the pump housing, there is a couple dowel pins there that will probably hang up. i usually replace the bushing and it takes 2 seals to replace the one old seal. install a lip facing each way with the new seals.

jjvb · Jul 10, 2017

Steiners created a video that goes through the entire process step by step. It's available on the internet.

chas036 · Jul 10, 2017

Can you send me the link

PJH · Jul 10, 2017

.
Heres a link

MikeinKy · Jul 10, 2017

Not sure, but I think the rockshaft housing is about the whole rear end.

JD720 PTO Clutch Oil Problem

chas036

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cole in mo.

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johndeeregreg

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jjvb

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chas036

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PJH

Well-known Member

MikeinKy

Well-known Member

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