[AT] de-greasing disc brakes

Thomas O Mehrkam tmehrkam at sbcglobal.net
Tue Sep 22 15:47:25 PDT 2015


AN old junk wall mount Electric Oven works.  That is what we use for 
testing lithium battery packs at work.

We sit it out in the parking lot and run a 220v cord out to the thing.  
Set the temperature and back up just in case the battery packs catch 
fire and explode.

I got ours when it was put out for heavy trash during a kitchen remodel.

On 9/21/2015 6:18 AM, charlie hill wrote:
> Gene,  I bet John might have a welding rod oven at work.
> I'm not sure it would get that hot but it's worth thinking about.
> Steve W's.  toaster oven might be the easiest way.
>
> Charlie
>
> -----Original Message-----
> From: Gene Dotson
> Sent: Sunday, September 20, 2015 9:50 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] de-greasing disc brakes
>
>      Many years ago all the parts houses and machine shops had an oven that,
> among other things, was used to bake the oil and grease out of brake shoes
> and clutch discs. Heat to 450 degrees until all the oil and grease was
> cooked out. Access to a heat treat oven would have the same result.
>
>              Gene
>
>
>
>
> On 9/20/2015 7:30 PM, jtchall at nc.rr.com wrote:
>> OK, I’m normally one of the first people to say don’t try this just buy
>> some new ones. However, 4 disc brakes to fit my combine will run me $450
>> from Deere—they are not available aftermarket—it appears the 3300 was the
>> ONLY thing to use this particular transmission. I’ve got plenty of pad
>> left on them. I had a light leak/sweat on one side, the other is dry.
>> Anyone ever had any luck degreasing a set? As stated they weren’t really
>> greasy, but they just have a look and feel that to me suggests at some
>> point they have gotten grease on them. I’m thinking about soaking them in
>> Purple power for a couple days. I washed them off with Gunk yesterday.
>>
>> When I put this combine back in service 3 years ago I  ground down the
>> spots on the steel parts (larger and smaller diameters left as the discs
>> wore them away) where the pads don’t run. Installed new balls and springs.
>> This time I am going to try re-machining the 2 steel pcs that actuate the
>> brakes as I can tell they are not wearing flat. I’ll hand sand the discs
>> on a ground plate or surface plate—yes I know they are probably asbestos
>> so I’ll take reasonable precautions. I’m also going to replace the seals
>> in the transmission.
>>
>> Any thoughts or suggestions?
>>
>> John Hall
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