Case 400 Brake Guidance

[JoeyPorkChops]

9/29/026


Case 400 Brake Guidance

As you read this, please keep in mind that I do NOT know a thing about Case 400 brakes.

The back Story: The brakes on my 400 have always stopped the tractor, but on their own schedule. So far this has not been a problem. I almost never pull anything with the tractor. The tractor is primarily just used for its Farmhand Loader. So, I never really cared how great the brakes worked.

Present Day: However, my mindset changed this weekend, as I was hauling a load of junk in the bucket, got near the fence, and sure enough the brakes decided that they did NOT want to wake up. Luckily, I was able to drop the bucket in time to NOT drive through the fence. I stopped, literally 2 inches away from the fence, but at least I don’t have to replace the fence.

Going Forward: My question(s) are as follows.

I did have the bar locking both brake pedals together if that is useful information.

• How do the brakes on a Case 400 work?
• Do they have anything in common with today’s car/Pickup truck brakes?
• Can they be adjusted? If so, how is that done.
• Are parts available for them, (John Saeli that question is for you. LOL)
• What should I be looking for/at to determine what is wrong with them?
• If I have to tear into them, are there other maintenance things I should do while I am into the brake job?

Any guidance you are willing to provide will be greatly appreciated!

Thanks in advance.
Respectfully,

JoeyPorkChops

 

[cumminstinkerer]

@JoeyPorkChops first thing that would be really helpful is if its a big 400 or little 400b, brakes are similar but different, maybe post serial number.

 

[casecollectorsc]

Pull the brake covers off, clean everything and see if the seals are leaking. Put bigger balls in the actuators Saeli should have all the parts..

 

[Tgrasher]

Your really not going to know what the problem is until you take the covers off, could be oil leaking from a worn seal onto the disc's, or, hard to believe they're glazed so bad they won't grab. The brakes work by a center actuator that expands outward by the balls rolling on an inclined groove,, when pulled by linkage from thr pedal. The outward expansion presses against the disc's which also then press against the transmission wall and the cover. A good help with reassembly is to make a headless bolt as long as the top one of the cover. Screw it in to where it will hold the weight of the assembly as you guide it over the splined brake shaft.

 

[JoeyPorkChops]

@JoeyPorkChops first thing that would be really helpful is if its a big 400 or little 400b, brakes are similar but different, maybe post serial number.

It is this one.

 

[tomturkey]

if the brakes are not oil soaked the balls and mechanism is probably rusted from water incursion. Remove cover take pictures look at the manual check for seal leakage and start the removal clean-up and replacement. Learn by doing, how most of us got our experience. gobble

 

[JoeyPorkChops]

if the brakes are not oil soaked the balls and mechanism is probably rusted from water incursion. Remove cover take pictures look at the manual check for seal leakage and start the removal clean-up and replacement. Learn by doing, how most of us got our experience. gobble

Sound advise Thank you

 

[Joe (Wa)]

Learn by doing, how most of us got our experience. gobble

That's how we got experienced after we needed it.

 

[CarlC]

We also need some help with brakes for a big 400 Case. Looking at the parts manual photo above, we need 12 inserts part #O8295AB. The first character we were told by a Case IH implement dealer is an alpha O rather than a numeric zero. They can get this part for us, but they are $70 each and the brake needs 12 of them so pretty costly. Most searches return zero results for this part. Does anyone know who might have these at a reasonable price? Has anyone ever pressed a flat washer as a substitute part?

 

[chuck machinist]

9/29/026


Case 400 Brake Guidance

As you read this, please keep in mind that I do NOT know a thing about Case 400 brakes.

The back Story: The brakes on my 400 have always stopped the tractor, but on their own schedule. So far this has not been a problem. I almost never pull anything with the tractor. The tractor is primarily just used for its Farmhand Loader. So, I never really cared how great the brakes worked.

Present Day: However, my mindset changed this weekend, as I was hauling a load of junk in the bucket, got near the fence, and sure enough the brakes decided that they did NOT want to wake up. Luckily, I was able to drop the bucket in time to NOT drive through the fence. I stopped, literally 2 inches away from the fence, but at least I don’t have to replace the fence.

Going Forward: My question(s) are as follows.

I did have the bar locking both brake pedals together if that is useful information.

• How do the brakes on a Case 400 work?
• Do they have anything in common with today’s car/Pickup truck brakes?
• Can they be adjusted? If so, how is that done.
• Are parts available for them, (John Saeli that question is for you. LOL)
• What should I be looking for/at to determine what is wrong with them?
• If I have to tear into them, are there other maintenance things I should do while I am into the brake job?

Any guidance you are willing to provide will be greatly appreciated!

Thanks in advance.
Respectfully,

JoeyPorkChops

I have a service manual and a parts manual Joey. I no longer own the tractor, if you would like to have those manuals, you can contact me. You must pay shipping for the manuals. It don’t get any better than that now. Seven 5 seven two 8 two 810 nine Chuck Machinist

 

[Tgrasher]

We also need some help with brakes for a big 400 Case. Looking at the parts manual photo above, we need 12 inserts part #O8295AB. The first character we were told by a Case IH implement dealer is an alpha O rather than a numeric zero. They can get this part for us, but they are $70 each and the brake needs 12 of them so pretty costly. Most searches return zero results for this part. Does anyone know who might have these at a reasonable price? Has anyone ever pressed a flat washer as a substitute part?

Try Saeli Imp 315-585-9826 John will be helpful. Nothing saying you can't make your own if you have a good one to copy from, we all do fabrication when we need to.

 

[CarlC]

Try Saeli Imp 315-585-9826 John will be helpful. Nothing saying you can't make your own if you have a good one to copy from, we all do fabrication when we need to.

Thank you for your response. We called Saeli Imp. Sounds like this is a Case only part. Sounds like fabrication will be our way to go. We also appreciate the contact to find parts.

 

[Joe (Wa)]

Letter O is correct for O8295AB and nearly all Case p/n's that end in AB. But many vendors list it as digit 0 so if you are searching by an AB p/n do so with both the O & 0 p/n's.

Case changed AB p/n's to 5 digit p/n's preceded by the letters G or A when the part was used like this one on many tractor models from the 1940 up through the 1960's and maybe later.

The latest sub nr I have for O8295AB is A31125 which may not be the latest p/n change for that part but you are more likely to find a cheaper after market part with the A p/n than the obsolete AB p/n.