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Removal of Brake Drum from G

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Bill Long View Drop Down
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Joined: 12 Sep 2009
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill Long Quote  Post ReplyReply Direct Link To This Post Topic: Removal of Brake Drum from G
    Posted: 11 May 2015 at 9:39am
Ladies and Gentlemen,  At our plow day a membeer asked me what we did to remove the brake drums from a G axle.  I told him for us to get them off we had to burn them off.  In most cases ruining the axle and replacing it.
Does anyone out there have a successful way of removing the Brake Drums from a G?  I hate to see one have to replace a part - the axle - that is most difficult to obtain
Believe me we tried to press it off and even when to the point of making brackets.  Did not work.   
Look forward to hearing from you and hearing a better way.
Thanks!
Good Luck!
Bill Long


Edited by Bill Long - 11 May 2015 at 9:42am
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JoeM(GA) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JoeM(GA) Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2015 at 5:15pm
Bill, if it's a cast one you can usually make a puller from good threaded rod and a piece of bar, if it's the old sheet metal
Type, I usually stand the housing up, pour about a half gallon of water down the housing and then carefully cut my way through one side of the drum. Most of the time notching one side almost to the axle will allow you to drive a cold chisel in to finish "popping " the drum. Even if you have to go almost all the way to the axle the water helps cool it and it cools the sl*g before it gets to the bottom and ruins the bearing. It does take a careful hand with the torch and always blowing just a bit away from the axle until you get real close. Good luck!
Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB
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RJBoll View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RJBoll Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2015 at 8:47pm
Thanks to Bill for posting this and to Joe for the response.
The response was to use a torch and burn down close to the shaft. I don't consider myself to be that good with a torch so this is what I did.
I decided to drill next to the key. This would allow me some wiggle room to not damage the shaft. I had three long drill bits. 1/4", 3/8" & 1/2". I center punched a divot approximately 1/4" from the key. I reasoned this would let the 1/2" drill just touch the key. I started drilling with the 1/4" bit aligning the bit parallel to the shaft and everything went well until I got through the flange the drum was welded to. The 1/4" bit now was only cutting 1/2 of the part behind the flange. I expanded this hole to 3/8". That allowed me to angle the 1/4" bit in towards the shaft. I kept drilling until I got through to the end of the brake drum. I expanded this hole to 1/2". I put water in the housing and then took my torch and cut through the drum from the new hole to the outside of the drum. I then took a large chisel and drove it down into the cut near the 1/2" hole. This expanded the drum away from the shaft but the drum didn't break and still was not loose.
I considered drilling another hole on the opposite side of the drum but decided to try my hammer puller first. The hammer puller pulled the drum out but it took about 25 hits.
I did not damage the shaft at all. I did put a pretty good grove in the key. I thought the key would be easy to find. After three stores no key so now I am making a key. Not as hard as I thought it might be. The hard is getting the correct height above the shaft.

http://i31.photobucket.com/albums/c398/rjboll/G%20Brake%20Drum%zpslne3pmcw.jpg




Edited by RJBoll - 29 May 2015 at 8:54pm
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RJBoll View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RJBoll Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2015 at 8:53pm
[IMG][IMG][IMG]



Edited by RJBoll - 29 May 2015 at 8:59pm
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JoeM(GA) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JoeM(GA) Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2015 at 9:36pm
good! Glad to hear you won!
Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB
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B26240 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote B26240 Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2015 at 6:06am
Interesting how  most of us have the tools to get the job done just need guidence from someone who has been down the path already.
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Dusty MI View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dusty MI Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2015 at 6:44am
I got a brake off and ruined the axel shaft. But the axel was broken anyway.
I drilled the axel inside the drum until it was thin enough to peal away from the drum.
I had tried making a puller but just striped the threads on it.

Dusty
917 H, '48 G, '65 D-10 series III "Allis Express"
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Bill Long View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill Long Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2015 at 1:49pm
Bob,  That was a GREAT, VERY CAREFULLY DONE, PRECISION JOB!!  My sincere congratulations.
Please note that the brake drum is the earlier steel drums.  When the G first came out the welds to the hub failed and the drums uselessly spun around.  We had to replace many under warranty and as I said before just burned them off.  We replaced the axle and the drum. 
I do not recall having a problem with the cast drums.
Again my congratulations on a great job.
Good Luck!
Bill Long
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