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TO30 axle seal

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Aaron Y

02-08-2005 18:25:49

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Im working on a model TO30 and i need to replace the axle seal. can any one tell me the best way to get the collar off of the axle. as far as i can tell there is no set screw or retaining ring of any kind. I would appriciate any and all suggestions thanks for your help Aaron

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DavidP,South Wales

02-09-2005 11:26:17

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Re: TO30 axle seal in reply to Aaron Y, 02-08-2005 18:25:49

Hi Aaron,
Crem has only given you part of the procedure. Once the hole is drilled and the collar removed, you then have to remove the hub. Sometimes and it is only sometimes the hub will come off by 'banging' the inner end of the axle shaft down on a solid block of steel. It must be something heavy such as an anvil and you must bring the shaft down square. The weight of the axle plus a little effort will work if its going to. It is only the tightness of the bearing holding it but it can be difficult to remove. There are two other possibilities. You will have to drill a plate to bolt onto the hub and push it off in a press that is big enough to accommodate the length of the shaft. As an alternative you will have to do as above but with a tube to fit over the shaft with a screw in the end capable of pulling the bearing off.

Once you have the bearing off, replacing the seal is straight forward. The next bit will require a heavy pipe or similar to 'bump' the bearing back on. Make sure it contacts the inner part of the bearing only. You will hear the change of sound when it 'bottoms'.

Now the difficult bit. The collar has to be heated evenly to almost cherry-red. You must use oxy-acetylene equipment. Have a pair of grips adjusted ready. As soon as it reaches this temp, it must be fitted quickly before it starts to cool and shrink. Usually you only have one chance so it has to be hot enough to fall on. If it grips part way you will have difficulty to reheat it as the shaft will absorb the heat. Have a drift and heavy hammer ready so that you have a chance if this happens....hopefully it won't. With the collar sitting on the bearing, leave it to cool and then pack the bearing with grease.

Be prepared before you start and have everything to hand.
Good luck.
DavidP

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Crem

02-08-2005 21:07:12

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Re: TO30 axle seal in reply to Aaron Y, 02-08-2005 18:25:49

Drill a 1/4th inch hole in the collar towards the axle. When you get through the collar, split it with a chisel at the hole and then you can slide it off.

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Crem

02-09-2005 14:46:07

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Re: TO30 axle seal in reply to Crem, 02-08-2005 21:07:12

Aaron, if you go to this site, Link you can see pictures of some of the procedures. This is a web page by Jim Wallace and he posted some pictures that I took as I replaced the seals on my TO-20. It shows using a press to press the bearing off. When I re-installed my bearing and collar, I put the axle in the freezer and heated the bearing and collar to help install it. You don't want to get the bearing too hot. Did you know that there is also a Ferguson board on this site and they talk about the TO's more than on this board.

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