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Pressure plate

R

rrlund

Well-known Member
Just pondering something. I had a throw out bearing go bad, got it apart yesterday. Maybe it's just me, but it looks like it wore on the fingers of the pressure plate to some extent. It's not like the inside edges are sharp, but they just look worn some.

I was thinking about maybe taking it off, laying it down and building a pool of weld on them with a 6011 rod, then grinding them back down with a fine wheel on the angle grinder, mic ing them to get them even. I wonder if the weld would be softer than the fingers, or if welding them would take the temper out of them so I'd be better off leaving them alone?

Mid sized tractor, just used mostly for raking hay.
 
Are the fingers replaceable? If replaceable, available, and not terribly expensive that's the way I'd go, when I work on a clutch I don't want to do it again for a LONG time.

Have you priced new ones?

If there's a clutch repair shop in your area you may be able to get new fingers much more reasonably than from the tractor dealer.

What are they made of, stamped steel, cast iron, or a steel forging?

I would think the simple stamped steel ones would be the easiest to weld up, if that's what you decide to do.

If forged they may have sort of a hard outer layer (case hardened?) and a weld might chip or break?

Cast iron would be another matter.

Just some thoughts.
 
I got one just like it from Clutch Dynamics in Lansing a month ago for a different tractor. It's about an hour's drive, I just hated to drive that far again. It wasn't all that expensive. I might just be overthinking it. They're stamped steel. I don't know that the fingers on the old one that I took to them were all that bad, but Dan said the whole thing was too bad to rebuild, so he just got me a new one. I didn't bring the old one home with me or I'd just swap them out. I don't know, I might give welding it a try.

It's in an Oliver. They're not too terrible to do a clutch job on, you don't have to split them. Devil of it is, this has a relube bearing, I guess it just didn't cross my mind to grease it often enough, now the engine is sitting on the shop floor.
 
Olivers and Whites have a full frame. Lift the engine, bell housing, two or three speed powershift unit all out together. Sit the engine down, unbolt the bell housing and slide it apart. I don't have a picture of the Oliver that I'm working on, but here's my White 2-135 with everything out. Same thing.


cvphoto48773.jpg
 
I went ahead and did it, but I went a little bit different direction. I didn't just pile up weld on it. I took three pieces of hardened wheel rake tine and welded them to the fingers then ground them down. I figured it would be best to have something hardened on there.
 
Still looks like a lot of work. I don't believe I would put a repaired pressure plate back in there. I split a tractor and replaced the clutch. The throw out bearing looked like it was in good condition so I put it back in. A few months the bearing went bad.
 
That's what happened to this one. I put a clutch in it a few years ago and didn't have the pressure plate rebuilt, flywheel resurfaced or change the pilot or throw out bearing.
They're not bad to get the engine out of, especially that little 1550 that I'm working on. Take out the radiator, which I needed to do anyway so I can put a new quad ring in the steering cylinder that was leaking, then take off the gas tank, pull the long PTO shaft out the back, take the connecting link out of the chain coupler and 4 motor mount bolts and there you are. Not something I want to do every day, but the second one I've done in the last month or so. My 1600 with a loader needed a clutch.
 
I'll have to get a new one. I went and got the bearings today, bolted up the bell housing and tried to move the lever to disengage it. It's going down too far. The linkage would be all the way out if I put it in that way.
 
Another change in plans. When in doubt, read the manual. (What a novel idea huh?) The I&T manual tells how to adjust the fingers in the pressure plate. I got them set out where they belong, slid the bell housing back on and tried it. Success. The tractor's all back together and parked in the toolshed. Feels as good as the one that I put a new clutch, pressure plate and resurfaced flywheel in to last month. It always feels good to a cheap Swede to save a few hundred bucks too as a bonus. LOL
 
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