IH 1066 PTO problems

Doug in Illinois · Jun 8, 2011

Hey Allan (or the rest of you IH guys).

My 1066 hydraulic system is getting tired at 5809.6 hours as of yesterday. I made the mistake of letting her get low on Hytran with a badly leaking swivel tongue mower conditioner 4 years ago. Pump chatters now.

Lost the PTO Monday running my new to me Kuhn 300 mower conditioner. PTO slipped, I shifted down a gear and went about 30 more feet and PTO quit dead.

Loader still goes up and down, still steers OK. All works but the PTO.

I assume that means clutch pack. I have one coming from Abilene Machine. Standard and heavy duty are the same price, I ordered the heavy duty because of the hay equipment abuse it takes.

I already know that if I get the front of the tractor low enough very little if any Hytran will be lost when I pull the pack out. I also know that the pack is spring loaded and will need to use a press to take it apart, which I have access to.

What else do I need to get for parts? I know gaskets are needed, dealer only item. Any o-rings, seals or similar needed also?

Anything else I need to look out for? Thanks, DOUG

the tractor vet · Jun 8, 2011

To swap out the PTO clutch pac all ya need to do is get the PTO out and on a flat surface and a screw driver . Now if you are going to go deeper then ya need to compress the springs to get to the Orings on the piston and if your going deeper then ya need a piston ring compressor for the teflon seals . also you should have the test fitting to go into the pressure test port so you can check and set the lock up pressure once you have it back in the tractor to make sure that you have proper loc up on the clutches. and a gauge that will read 600 lbs.. Myself i like to set the loc up at 260-270 on a 1066 as i am sure that she ain't setting stock.

Allan in NE · Jun 9, 2011

Hi Doug,

Pay real close attention to the condition of those seals on the piston.

If you see an obvious reason (blown o-ring or such) as why it was leaking pressure, I wouldn't be too concerned about the pressure settings the Vet talks about.

HOWEVER, if the old seals seem to be intact and okay, then be sure and check the pressure.

In other words, make darned sure you know the reason for the failure in the first place before calling it 'repaired' and buttoning it up.

You'll do just fine,

Allan

RodinNS · Jun 9, 2011

I'm not familiar with the IH's but I would strongly suggest pressure testing it FIRST. I'm working on a Ford at the moment for a guy who pulled the dual power out before pressure testing. It had a bad clutch drum and sealing rings... but after replacing all of these parts and still not working... come to find out the pump shaft was sheared off.
Test it first. Then repair it. Save yourself a lot of misery. Mabey a pile of money too.

Rod

IH 1066 PTO problems

Doug in Illinois

Member

the tractor vet

Well-known Member

Allan in NE

Well-known Member

RodinNS

Well-known Member

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