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TomYaz 
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Joined: 14 Sep 2009
Location: PA
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 Topic: 175 Brakes Educate me...
Posted: 12 Oct 2020 at 6:41am |
So I got the final drive off the frozen side....Looking at the brakes... Being a WD45/D17 owner I can understand the break bands...but it appears there is a disk brake component too? How does that all work??? Also what tool would one use to remove the break band pin??
Thanks
Tom
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If its not an All-Crop, it all crap!
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MACK
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Joined: 17 Nov 2009
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Posted: 12 Oct 2020 at 7:09am |
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The disc has balls with ramps inside. When the band tries to stop disc, it causes disc to expand, applying brake pressure on both band and disc. MACK
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DrAllis
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Joined: 12 Sep 2009
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Posted: 12 Oct 2020 at 7:17am |
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Top band pin is (in your case) probably removed with a torch.
Bottom pin stays installed.
Edited by DrAllis - 12 Oct 2020 at 7:17am
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TomYaz
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Posted: 12 Oct 2020 at 7:23am |
 DrAllis wrote:
Top band pin is (in your case) probably removed with a torch.
Bottom pin stays installed. |
Ugg...before I resort to that looks like the end of the pin has a groove for a tool to be attached for pulling...what kind of tool would that be?
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DrAllis
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Posted: 12 Oct 2020 at 7:26am |
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Two screwdrivers. If it was anti-seized, it will come right out.
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TomYaz
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Posted: 12 Oct 2020 at 7:29am |
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Ok....its rusted up good....but I got a lot of time and pb blaster
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Ed (Ont)
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Posted: 12 Oct 2020 at 7:33am |
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There was a guy that made a tool to remove the WD45 pins but I don’t know if these are similar. Can’t remember if he was on this site or not but it was an expensive tool.
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TomYaz
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Posted: 12 Oct 2020 at 7:41am |
Ed (Ont) wrote:
There was a guy that made a tool to remove the WD45 pins but I don’t know if these are similar. Can’t remember if he was on this site or not but it was an expensive tool. |
Its similar in that it has a groove IIRC, but smaller dia.
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DrAllis
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Posted: 12 Oct 2020 at 7:53am |
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And it isn't exposed, it's down inside a recess.
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DSeries4
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Location: Ontario, Canada
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Posted: 12 Oct 2020 at 9:33am |
I have used a small cutoff wheel to remove the shoes from the top pin. After that, I get the heat and penetrating oil out. If it really has problems moving, I have cut the pin in half and dealt with one half at a time. It is a combination brake system. The shoes do not stop the tractor directly. They close against the disc. The disc will expand to put pressure on the bearing carrier and the friction plate on the axle, making the tractor stop. Definitely take the dick apart to check the balls inside. If they are worn, the assembly will not work properly. Once everything goes back together, you will need to use a feeler gauge to check the clearance between the disc and friction plate. The specs are outlined in the service manual.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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Joe(TX)
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Posted: 12 Oct 2020 at 12:40pm |
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I made tool that clamps onto the head of the pin. A small slide hammer is then used to pull the pin.
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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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Tbone95
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Location: Michigan
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Posted: 12 Oct 2020 at 2:23pm |
DSeries4 wrote:
I have used a small cutoff wheel to remove the shoes from the top pin. After that, I get the heat and penetrating oil out. If it really has problems moving, I have cut the pin in half and dealt with one half at a time. It is a combination brake system. The shoes do not stop the tractor directly. They close against the disc. The disc will expand to put pressure on the bearing carrier and the friction plate on the axle, making the tractor stop. Definitely take the dick apart to check the balls inside. If they are worn, the assembly will not work properly. Once everything goes back together, you will need to use a feeler gauge to check the clearance between the disc and friction plate. The specs are outlined in the service manual.
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