1066 brake grabbing.

redjohn · Oct 7, 2015

I've got a 1066 Diesel tractor. It does have the traction control on it. I have a problem, with the right side brake grabbing. This is the side, with the traction control.
The brakes were working fine, until I put seals in the traction control, and re installed. Since then, the brake has grabbed.
I've taken both sides apart, to install new brake pads, and haven't seen anything wrong.
Would the brake cylinder, all at once start acting up? It was mentioned to me, that if the brake grabs like it is, to disconnect the traction control lines, and cap them off. I don't want to do this, but would like the brake to free up again. The left side is fine.
Thanks for any answers I get.

the tractor vet · Oct 7, 2015

Well i would look at the return springs and see if the little tiny pins that hold the tiny little spring inside has broken or that the snap rings on the outside have moved and are not even . As they have to be all set the same to start out with and sorta self adjust . You need and I T or factory service manual to set them to start with . Also check and see if the brake piston is not setting even on the brake piston housing . Clean and scuff up all mating surfaces check for any oil leakage .

redjohn · Oct 7, 2015

The return springs are new, and I had to order 1 new brake adjuster. So when that came in, I set the other adjustors the same and installed.
The snap rings are on also.
Will check the brake piston, but after installing brake discs, I did adjust them per the I T manual.
When I took the brakes apart, there was dirt and an oily substance on the inside. Should this be dry? How far do I have to dig in, to replace a seal or whatever?
I'm hoping it's the brake cylinder, as it's easier to work replace, than a seal inside somewhere.

Owen Aaland · Oct 10, 2015

The brake disks should be dusty dry. Just a little bit of oil will make them grab. If they are really oily they will be past the grabbing stage.

redjohn · Oct 11, 2015

(quoted from post at 18:27:31 10/10/15) The brake disks should be dusty dry. Just a little bit of oil will make them grab. If they are really oily they will be past the grabbing stage.

It was bugging me about the brakes. I know I had adjusted them, per the I T manual. I remembered making a big adjustment, to the brake that was grabbing, so I was looking at it, and it seems, I may have tightened the brake up too tight at the pedal. So I turned the brake adjustment out 2 turns, and now it doesn't drag. I step on the pedals while driving slow, and both seem to operate about the same. So I'm thinking that was it. Thanks for the advice, as it is all good.

Owen Aaland · Oct 11, 2015

The linkage at the brake pedal should be adjusted so that with the pedals against the platform the pins will slip in without moving either the pedals or the valve stems. Also make sure that all the pins are free, none of them rusted tight in the linkage.

1066 brake grabbing.

redjohn

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the tractor vet

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redjohn

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Owen Aaland

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redjohn

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Owen Aaland

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