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Massey Harris & Massey Ferguson Tractors Discussion Forum
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removing shaft on front mounted pump

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Bob

07-22-2004 03:35:44




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I have a 135 diesel orchard tractor (heavey duty front end) with the front mounted hydraulic pump. The keyed shaft of the pump fits into the female end (with keyway) of a shaft that attaches to a plate screwed with rubber mounted bolts to the crank shaft pully. How does the shaft remove? I thought it reverse threaded into the plate? Also a snap ring in the front end which appears to retain the bushing that holds the shaft. Any help appreciated, thanks, Bob

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Rickf

07-28-2004 16:19:43




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 Re: removing shaft on front mounted pump in reply to Bob, 07-22-2004 03:35:44  
Bob, I had the same problem on my 20 industrial. Someone had deadheaded the pump and jammed the shaft so tight it started to split the collar on the crankshaft. What I had to do was torch the shaft close to the collar, pull the collar off the crank and slide the remainder of the shaft oput the front. Good luck.
Rick



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Big Dean

07-23-2004 17:13:20




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 Re: removing shaft on front mounted pump in reply to Bob, 07-22-2004 03:35:44  
Hi Bob Those shafts do have a counterclockwise thread where they screw into the adapter plate that bolts to the crankshaft pulley. Unless you have one of the tools that is made from a shaft out of an old pump with a socket welded on to it then you can use an impact wrench to brake it loose. If the shaft has to be replace the way Thomas says to remove it works well or you can weld a bolt in the end of the shaft to use an impact wrench to break it Loose. They can get rather tight if they have not been removed in a while and it can also be hard to find a way to keep the engine from turning while you are trying to bust it loose. I have replaced several of them. Hope this helps If I can be of further help E-mail me

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GaryF

07-22-2004 20:56:50




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 Re: removing shaft on front mounted pump in reply to Bob, 07-22-2004 03:35:44  
My 204 has right hand threads at the pulley mounting plate. Use a pipe wrench on the shaft.
Gary



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GaryF

07-25-2004 04:29:46




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 Re: Re: removing shaft on front mounted pump in reply to GaryF, 07-22-2004 20:56:50  
Oops! I should have said left hand thread (counterclockwise) Hope you didn't jam it in further!



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Bob

07-28-2004 17:34:09




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 Re: Re: Re: removing shaft on front mounted pump in reply to GaryF, 07-25-2004 04:29:46  
Thanks to all for the helpful information. Built a keyed shaft and welded a 90 degree handle to it. Removed the shaft counter clockwise (L H). Held the pulley with a 3/4 inch bar jammed between the frame and the bolt heads attaching the plate to the crankshaft pulley. Old pump was 3/4 shaft, equal pump today is 7/8. (Freeman Loader) Bored out shaft to 7/8. Now have a loader that will move a house just like it use to. Hope this helps someone else. Thanks again, Bob

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Thomas

07-22-2004 13:03:41




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 Re: removing shaft on front mounted pump in reply to Bob, 07-22-2004 03:35:44  
I presume that this is the same arrangement as the industrials. The way to free these is to weld on a piece of bar to the shaft at 90 degrees, and belt it with a big hammer until it comes loose and can be screwed out. I think it is a left hand thread but can't be sure. The only other way would be to split the tractor at the front support, wheeling the front axle away from the engine but that's a bit more work.

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