Need help Super C brake question !!!!!!!!

Working on a total restoration on a 1952 Super C Farmall. Just finished putting new seals behind brakes and new discs on, Now I cannot get tractor to roll unless I loosen up drum cover. What do I need to do to fix this problem? Did they make different thickness of discs ?? And the also the pedals are not even on the tractor so there are not adjusted to tight !! Any help greatly appreciated !!!!!!!

Dustin IL

It's more common for them to be loose and need to have the cover planed down a little to compensate for wear. To my knowledge, there's only one thickness of disc made. If you've got everything inside assembled correctly, you shouldn't be finding any resiostance or tension as you bolt the cover back on.

One thing that occurs is the condition of the splines on the shafts. If they're worn, it will be in a way that new discs will tend to wobble and bind up and not slide in and out on the shafts the way they should.

I don't think it's the case, but it might be that you need the tension of the return springs on the pedals to get them to back off. It doesn't really make sense because both adjustments (brake tension and freeplay) are made against the loop on the pedal (right side) or arm (left), so presumably both your control rods are just dangling at this point doing nothing. If they're not already on, you might try threading the control rod onto the clevis a ways and give it a light but smart rap, which would have the effect of backing the brakes off and see if they'll release and stay off. That whole control rod and adjusting assembly is going to need to come back off on both sides anyway to get the pedals connected to them before final adjustment.

In the end, you might want to wait and put them after you get the pedals remounted. This will give you a chance to look over your internal assembly, too, to make sure you have it together right, as well as to check out how everything slides on the bull shafts.

In the past, someone may have planed the cover down. You may have to shim it out again.

(quoted from post at 11:51:32 10/23/09) In the past, someone may have planed the cover down. You may have to shim it out again.

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Do you think just washers between the drum an chasis would work for shimming ??

Dustin IL

Only if you don't mind water and crud getting in there. There's a reason for the rubber boot over the clevis the control rod threads into.

I'll be honest, I can't say it didn't happen, but I have my doubts about the covers having been planed down being a part of your problem. The reason covers are planed are when the inner face of the cover and the braking surface on the side of the tranny are sufficiently worn that new discs will not expand sufficiently to give you the braking you should have. And even then, they are planed only so far as they need to be to make new discs work properly.

If they have even ever been planed, then perhaps the shop that did the work took them down too far. In that case, though, they'd have never gotten new discs to fit and work in the first place. Not impossible, but I'd consider that to be a remote possibility.

Good point Scott will investigate a little further when I get off work and I will post back to let you know what I find THANKS AGAIN !!

Dustin IL

How are the splines on the shafts? If they are rusty or rough, then that's a problem. (Going to disc brakes wasn't on of I-H's better ideas.)

If the parts have been machined too much to have enough clearance with new disks, use one new one and one of your old ones to see if that will help.