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Hydraulic cylinder repair

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Howard Barlow

11-29-2001 08:05:10




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Were can I find wrenches to disassemble small cylinders?




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digger

11-30-2001 06:42:37




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 Re: Hydraulic cylinder repair in reply to Howard Barlow, 11-29-2001 08:05:10  
are these cylinders off a case machine? that is almost what it sounds like and personally your bst bet is to go with a spanner wrench specifically designed for this purpose because they can be a bi*!# to loosen up. good luck



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CHRIS

11-29-2001 20:37:49




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 Re: Hydraulic cylinder repair in reply to Howard Barlow, 11-29-2001 08:05:10  
THE CUTOUT IS FOR A SNAPRING TRY LOOKING FOR THE START/STOP END OF THE SNAP RING AND TRY TURNING THE PLUG TO THIS POINT THEN USE A PICK/FLAT SCREWDRIVER AND REMOVE SNAPRING THATS INSIDE OF THE TUBE, THEN PULL RAM AND PLUG FROM TUBE. GOOD LUCK



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Howard Barlow

11-29-2001 19:44:38




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 Re: Hydraulic cylinder repair in reply to Howard Barlow, 11-29-2001 08:05:10  
Thanks for the responses, but I may not have made myself clear. The "plug" around the ram is flush with the outer bore. There is a half-moon cut out of it. It's kinda like taking a pie and cutting a straight line from 2 o'clock down to 4 o'clock. I have to be able to reach inside the cylinder about 1/2". Clear as mud?



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Tyler(WA)

11-30-2001 07:35:05




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 Re: Re: Hydraulic cylinder repair in reply to Howard Barlow, 11-29-2001 19:44:38  
Howard,

I just did a cylinder like that. Bugged the snot out of me 'til my hydraulic shop showed me the trick. I think you have a snap ring plug and it's one of the easier types to open.... once you see what you're dealing with.

You need to wash down the whole plug (I use diesel) to get the caked dirt off the snap ring and groove it rides in. Walk the plug around, or walk the ring around (whichever moves easiest) so that the two ends of the snap-ring are visable in the cut-out. A pair of snap ring pliers will then pull the two ends together and allow you to pull the plug right out. I used the shaft as a slide hammer to tap the plug out.

Slicker than smelt on waxed paper!

Let me know how it goes. This is the method for what it sounds like you're describing. That end cap configuration had me just as puzzled as you sound to be. Hope this is the same fix.

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gatractorman

11-29-2001 16:55:25




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 Re: Hydraulic cylinder repair in reply to Howard Barlow, 11-29-2001 08:05:10  
Hey Howard there are several different tools available depending on what type of cylinder you have there are face spanners this is a tool that resembles a V and has 2 small pins on the end that fit into holes on your gland, then there are hook spanners that has a single pin when you have a cyl. with slots in the side of the gland, then you have a chain wrench which works great if your gland is thick enough for the jaws of the wrench to get on it. I have saw all these things at Harbor Freight from time to time but your better quality stuff will be at places like Grainger, most any industrial supply place will have stuff like this, also might wanna check Ebay I've bought things like this there.

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rhudson

11-29-2001 14:57:50




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 Re: Hydraulic cylinder repair in reply to Howard Barlow, 11-29-2001 08:05:10  
Sears has a adjustable (monkey wrench?) that i got for my JCB cylinders. i also have to admit that i have a 4 foot pipe wrench that i ground the jaws smooth for the large cylinders.



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T_Bone

11-29-2001 13:02:38




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 Re: Hydraulic cylinder repair in reply to Howard Barlow, 11-29-2001 08:05:10  
Hi Howard,

I used a chain wrench that worked very well. It will do small bores as well as 6" bores. Not the vice-grip type but the ones that are made for working pipe.

T_Bone



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