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Servis Post Hole Digger

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Michael

10-28-2002 13:28:26




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Just picked up a post hole digger. The exterior and interior shafts from the PTO to the gears are rusted tight. The exterior sleeve is metal, which indicates an older style post hole digger. Any suggestions on how to free them without damage to the unit? Thanks.




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Steven

10-28-2002 18:41:09




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 Re: Servis Post Hole Digger in reply to Michael, 10-28-2002 13:28:26  
Let the oil soak in, one that I particularly like is Liquid Wrench. Then start to heat and pull. A little tapping on the exterior sleeve will help to break the rust loose. It the two sleeves are a relatively tight fit, don't over soak with the oil. It will cause the rust to ball up and make it more difficult to remove. The ones that I have seen in the past though, don't have such a tight fit that this would be a problem.

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Steven

10-28-2002 18:38:46




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 Re: Servis Post Hole Digger in reply to Michael, 10-28-2002 13:28:26  
Let the oil soak in, one that I particularly like is Liquid Wrench. Then start to heat and pull. A little tapping on the exterior sleeve will help to break the rust loose. It the two sleeves are a relatively tight fit, don't over soak with the oil. It will cause the rust to ball up and make it more difficult to remove. The ones that I have seen in the past though, don't have such a tight fit that this would be a problem.

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Gary in TX

10-28-2002 17:42:03




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 Re: Servis Post Hole Digger in reply to Michael, 10-28-2002 13:28:26  
If its not too bad you might try using some heat along the full length of where its slipped into each other, heat works wonders you just dont' want to get any bearings or u-joints hot to ruin the rubber parts. I have freed up many things with the torch. You could hold the end up that has the other one sticking down in it and fill it up with diesel or soem other oil and let it set, I have done that in addition to the heat on certain jobs.

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Ol Chief

10-28-2002 19:05:05




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 Re: Re: Servis Post Hole Digger in reply to Gary in TX, 10-28-2002 17:42:03  
I agree with Gary.when you get all tensioned up w/ your chainfall have someone continuously flush the U joints on both ends with water.Then pour the heat to the exterior sleeve evenly full length and all the way round.Keep that torch continuously moving.Even if you heat to dull red the chance of damage is slight.( note ) Be sure to establish your pull point in center by passing the draw chain thru the end yoke of each universal.Do not lasso the inner yoke otherwise you may put a kink in something.I am an marine engineer/farmer.Over many years of problems w/salt water corrosion on sea going ships, heat has always proven to be the best and final solution in my experience.P S While you have the shaft in tension and prior to reaching any color change, using a soft (lead,copper,or brass)hammer and common sense, hammer continuously on the sleeve. If you are leaving any marks slack off or stop hammering.Good luck


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Michael

10-28-2002 15:23:13




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 Re: Servis Post Hole Digger in reply to Michael, 10-28-2002 13:28:26  
Done that. I was told to use diesel oil because it acts as a cleaning agent as well. Penetrating oil for sure. Then what? I plan to fasten one end by chain to a tree and the other end to a five ton come along, and then start to pull the thing apart. What do you think?



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Pull it

10-28-2002 18:11:29




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 Re: Re: Servis Post Hole Digger in reply to Michael, 10-28-2002 15:23:13  
Well, last week I tied a log chain to one end and to a tractor and did the same thing to the other end and pulled it apart. It took longer to type this than to do it. Be easy with it but it will work.



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Free Bird

10-28-2002 14:19:05




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 Re: Servis Post Hole Digger in reply to Michael, 10-28-2002 13:28:26  
Penetrating oil



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Free Bird

10-28-2002 14:17:41




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 Re: Servis Post Hole Digger in reply to Michael, 10-28-2002 13:28:26  
Penetrating oil



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