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Massey Harris & Massey Ferguson Tractors Discussion Forum
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TO-20 troubles

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Slideways

12-26-2005 12:12:08




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I was given a running TO-20 (i"m pretty sure) that needed axle seals. Upon taking the shafts out i discovered that it already had Sure-Seals in it but still leaked? So i"m going to put the original style seals in. I removed the collars but could NOT get the bearings out for all the smacking and prying in the world. I figured they should slide off after the collars were split off.

My next question is that i ordered new brake shoes for the TO20. I received a full set but they are waayy smaller than the originals in diameter. I"m wondering now if i"m ordering the wrong parts or if i got the wrong shoes.

Thanks for the help
I have a serial # next to my steering wheel of 8537P (mean anything?)

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DavidP, South Wales

12-26-2005 14:57:13




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 Re: TO-20 troubles in reply to Slideways, 12-26-2005 12:12:08  
Hello,
I'm not sure about the size of shoes fitted to tractors on your side of the pond. European models had Girling 14" X 2" shoes fitted. As far as removing the hubs, they are normally quite tight and require the use of a special puller bolted to the hub and having a screw bearing in the centre hole of the shaft. Alternatively a housing can be made to suit a press bed and then the press operated to push the shaft out.
Occasionally they can be removed with the use of a heavy steel block, (an anvil would be ideal) but does not have to be that big.
Rest the end of the shaft on the block, raise the shaft, holding the backplate and bring it down SQUARELY on the block under its own weight to start. If it does not move after several attempts, use some downward pressure in addition (gloves are helpful). It may take a while but once it starts moving, you are on the way.
Avoid using heat firstly due to damaging the bearing and secondly you cannot heat the bearing ring without heating and expanding the shaft diameter. Although you only have a bearing 'fit' to overcome, they can be tight and as I say, this does work sometimes.
When you replace the bearing make sure that you have a heavy tube of the correct diameter to 'slide-bump' the bearing on until the sound changes and it is fully home. When you fit the ring make sure that everything is to hand, hammer, grips etc. Heat the collar to an even cherry red (not red hot) so that the flame chases the heat flare around the collar. Hand the torch to an assistant and drop the collar on as quickly as possible. Assuming you have it right it will drop into place. With the grips or similar keep turning the collar until it 'grips' the shaft and then immediately tap the collar around to make sure it is fully seated. Next, start breathing again!
Good luck
DavidP

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