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Case Tractors Discussion Forum
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Boom cylinder repair

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rudy2

06-29-2007 11:33:43




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Hi all,

I have the boom cylinder out of my Case 32 backhoe for seal replacement. I just got the seal kits today and wonder how difficult it will be to get the piston back in the cylinder after I replace the seals? Looks like it takes a fair stack of stiff plastic chevron seals. Do I need to do something special to get this assembled in the cylinder again without damage? Thanks.

Randy




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Roger (Mi)

06-30-2007 05:19:30




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 Oil well and drive in in reply to rudy2, 06-29-2007 11:33:43  
A number of years ago, some bean counter at Case got the bright idea of reducing the amount of chrome on backhoe hydraulic cylinder piston rods. Needless to say, I spent a whole summer at Case changing rusted cylinder rods. Just oil the seals well, oil the cylinder opening, make sure the rod/piston is in alignment with the cylinder, and drive it in with a sledge hammer.



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Phil (NJ,AZ,Sask)

06-30-2007 09:23:11




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 Re: Oil well and drive in in reply to Roger (Mi), 06-30-2007 05:19:30  
Roger(MI), Thats what works for me too. "AFTER" the Piston/Rod is inserted into the cylinder and the BIG Nut has been started in the Cylinder threads, a few raps, on the Piston End, with a BFH will keep the Nut from binding(easy to turn) I don't try to DRIVE the piston all the way in, only keep it ahead of the NUT.

JMHO



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Jim McVay

06-29-2007 15:06:19




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 Re: Boom cylinder repair in reply to rudy2, 06-29-2007 11:33:43  
When I have trouble I put a ring compressor on them and soak them in hot water and allow to cool and then grease them up good and stick it in the hole.



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