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Re: Oil in the brake housing
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J.W.
09-29-2002 20:42:48
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Karen; The gunk in the axle extension/brake housing is more than likely an acumulation of years and years. This tends to be a negelected area on a lot of tractors mostly because its a tough spot to get to. Some of it no doubt leaked from the differential, there is a seal in the extension housing to keep oil in and dirt out. The rear wheel, final drive case, and axle extension must be disassembled in order to change this seal. No small task, and it will be nessesary to replace the gaskets between these parts as well. The final drive assembly is HEAVY and ackward to handle, so recruit some help. The seals are available thruogh National oil seals and NAPA auto parts usually has them or can order them. Cleaning the inside of the extension is done with a long handled toilet type brush soaked in diesel fuel. You may have to scrub and rinse a few times to get it clean. Hope this helps, by the way take the old seals with you, makes it easier to match, if the rubber is gone from the seal, measure the axle with calipers to get the seal inside diameter. J.W.
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Karen
09-30-2002 01:16:19
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Re: Re: Oil in the brake housing in reply to J.W., 09-29-2002 20:42:48
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Thanks, J.W. for the tips! I've been reluctant to tear into it for fear that I couldn't find the replacement seals. The tractor belonged to my grandfather and in all the years he had it I don't think he ever did anything with the brakes, so I'm sure there is 54 years of accumulated gunk in there.
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steve
09-30-2002 16:13:42
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Re: Re: Re: Oil in the brake housing in reply to Karen, 09-30-2002 01:16:19
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it is not uncommon to have piles of gunk and mouse nest in the brake cavity after 20-40 years. if it dont drip oil, then it probably is not a problem. it is a good idea to clean it out, oil does not help the brake shoes. if you do decide to "fix it" check what is dripping. if it looks like 20 wt oil it came from the center (differential bevel gear housing behind transmission). if it is heavy 90 wt then it came from the final drive housing (normally not). to change the bevel gear housing seal you just jack up the tractor "good" take out the 4 bolts holding the axle- brake shaft housing to the bevel gear housing and slide it away from the tractor, final drive and all. It is a big chunk, but dont have to disassemble any shafts or bearings. now the final drive outside the brake drum, thats a different story.
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