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redpower1 
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Joined: 16 Jun 2015
Location: PA
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 Topic: D-17 series IV spline brake hub
Posted: 16 Jun 2015 at 7:36pm |
Does anybody know how to remove the spline brake hub from the bull pinion shaft? There is a wire snap ring inside the hub that doesn't want to come out and thinking about just heating and pulling the hub off the shaft hoping the snap ring will collapse enough to let the hub loose. The IT book says remove(pull) hub, then woodruff key, then snap ring.  D-17 series IV serial 86206
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jlogli
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Joined: 12 Oct 2011
Location: Stockport, IA
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Posted: 16 Jun 2015 at 8:28pm |
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Series IV brake hubs should slide off the axle shaft with not much force. A little wire brush action. The key is in earlier models with a solid drum.
Edited by jlogli - 16 Jun 2015 at 8:31pm
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1945 WC on full steel, WD wide front, WD45 power steering, 1966 D-17IVfactory 3 point.1967 D-17IV SC. 1973 rotobaler white top. orange top roto, model 90 combine,82S, four bottom plow.302 baler.
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DrAllis
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Posted: 16 Jun 2015 at 8:32pm |
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Series 3 and 4 have a splined hub that is pressed on the axle shaft. I don't ever remember having to remove/replace one. It will take a puller or heat or both.
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jlogli
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Posted: 16 Jun 2015 at 8:36pm |
 DrAllis wrote:
Series 3 and 4 have a splined hub that is pressed on the axle shaft. I don't ever remember having to remove/replace one. It will take a puller or heat or both. |
I thought series I and II were pressed on?
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1945 WC on full steel, WD wide front, WD45 power steering, 1966 D-17IVfactory 3 point.1967 D-17IV SC. 1973 rotobaler white top. orange top roto, model 90 combine,82S, four bottom plow.302 baler.
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DrAllis
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Posted: 16 Jun 2015 at 9:12pm |
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Series 1 and 2 had the brake drum pressed on. Different design of brakes.
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skipwelte
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Posted: 16 Jun 2015 at 9:23pm |
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the splined hub on a Series IV is a loose fit on the splined shaft. It is supposed to be able to move on the shaft a little as the brake discs wear. Yours may be rusted, there is no snap ring or half moon key on a Series IV. Worst comes to worst you may have to pop the springs holding the drum halves together and separate the splined half from the open half-not a fun job. Ive done lots of them, never had a problem removing the drum from the shaft, always a new wrinkle somewhere. Now the pin that holds the two bands in place is an altogether different story.
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DrAllis
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Posted: 16 Jun 2015 at 9:29pm |
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Unless I've lost my marbles, the 180-185's had the brake drum splined directly to the axle shaft. The D-17 3 and 4 used a different drum on the splined hub that was keyed to the axle shaft, yes??
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skipwelte
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Posted: 16 Jun 2015 at 9:42pm |
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No, the brakes in a Series IV are the same design as a 180 or 185. On all those tractors the final drives are outboard-hence the same direct splined axle setup. D19s and 190s and 200s have the brakes splined to the pinion shaft as they all had internal final drives. Been a long time but I think the brake discs are the same part number for series IV and 180/185. HTH.
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DrAllis
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Posted: 16 Jun 2015 at 9:47pm |
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Brake disc linings are the same from D-17 3-4 170-175-180-185. Better look on AGCOPARTSBOOKS.com. The brake drum is different, as is the axle shaft. My theory is the 180-185's wouldn't have survived with the half-moon key cut in the axle shaft, so they eliminated it. The lower HP tractors still used a key and then a splined hub to a different brake drum.
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MACK
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Posted: 16 Jun 2015 at 9:47pm |
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Yes Dock you are right, it uses the same axel as older tractor. MACK
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skipwelte
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Posted: 16 Jun 2015 at 10:06pm |
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Agco parts: lineing for D17IV-237421, Lineing for 180/185-237421. The outer drum is the same P/N, the splined drum is a diff part number. There is a splined adapter that is keyed to the axle shaft that the inner drum sits on. And the brake bands are 235610 on all those tractors.
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redpower1
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Posted: 17 Jun 2015 at 4:11am |
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I'm referring to the retaining ring(p/n:70230330)for the brake hub(p/n:70237219) that I can't remove.
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skipwelte
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Posted: 17 Jun 2015 at 5:12am |
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Looks as if you could appy some heat to the hub and slide it one way or the other, then take the snap ring off. Heating the snap ring will probably ruin it- might have to do that. I think the IT book is referering to the brake drum on early D17s. I remember the AC D17 service book didnt cover Series IV brakes, Id go the 170 book for that info. Maybe later D17 serv books had those brakes in it, mine did not. Good luck
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