1175 hydraulic/pto disengage issue

1175case · Apr 15, 2016

1175 case original issue was pto would not stop. Removed
housing and replaced cluch pack brake pad is good.
Reassembled and op checked still not shutting off.
Disconnected cable and I can make it stop sometimes/
sometimes it won't, also varies with rpm will hold at idle but
most times will start around 1200rpm, seems like an issue
with the flow divider? Where do I start? Thanks

DKase · Apr 15, 2016

Did you check the hydraulic pressure before you tore into it? My bet is still on the brake. Pad glazed? Not enough pressure on pad? The drum is not round. It is oblong so the brake pad grabs better.

1370rod · Apr 15, 2016

With the tractor running and PTO off you should be able to remove the PTO clutch supply line and no oil should be running out. That tells you the cable is adjusted properly shutting off oil when the PTO is off. Now you will get some dripping out of the line of course because it is full of oil. If oil continues running out adjust cable until it stops running. With no oil going into the PTO the output shaft should not be turning. If it is turning your brake is worn out or you have abnormally high friction drag in the clutch pack or both. The supply line is on the RH side of PTO housing about midway up, requires a 11/16 wrench to loosen. Rod.

1175case · Apr 15, 2016

How tite does that need to be? Should I be able to run it manually with the bracket removed? Or does it need more pressure on it? Just seems erratic like there's something in the flow divider valve

mEl · Apr 15, 2016

Disconnect the line as Rob said, with no flow going to the housing the shaft should stop. After a few failed attempts to reuse old brake shoes that had been slipped by warped plates and having to redo my job I found that a new brake assembly was always the way to go. Once the old brake becomes glazed from slipping they lose their ability to hold. In all likely hood you will be doing the job over. If the transmission pressure is within range and steady there is nothing to be concerned about in the flo divider unless it continues to supply oil to the PTO with the spool in the off position. The spool should travel to the end of stroke in both directions and stop screws on the lever can be set to do that.

casecollectorsc · Apr 15, 2016

I guess everybody gets uptight if the pto doesn't stop when not in use. I've had the 1170 since 79 and it still pulls good but has never stopped as it was meant to. Doesn't bother me as long as the implement doesn't turn. When hooking up or unhooking the pto shaft, I shut the tractor off any way.

1175case · Apr 15, 2016

Went out and ran it for about an hr on the disc, seemed to purge some air out. Adjusted cable now it holds all the way thru the rpm range but over 1500 if you shut it off does not want to disengage until you throttle it back to about 1400 maybe that's just normal operation? And maybe it would if you had something hooked to it?

mEl · Apr 16, 2016

Case collector,

If it were mine I would probably do the same, but I was a mechanic in a well know Case shop and if I had sent one out of the shop that way I would have been doing it over. A customer does not like to see the bills for these repairs even if all is perfect and sending one out after a rebuild with a run on problem would simply be unacceptable.

It all depends on what side of the situation you are on, what you would accept and work with is way different than what you could sell a customer at today's rates, they want perfection, and deserve it.

Mel.

1175 hydraulic/pto disengage issue

1175case

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DKase

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1370rod

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1175case

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mEl

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casecollectorsc

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1175case

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mEl

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