Drott 4 in 1 clam cylinder needs rebuild or replace JD350

kilohertz · Feb 4, 2015

Hi guys,

Has anyone replaced a Drott clam cylinder, or rebuilt one? Mine is the 2 cylinder type, 3/4 yard bucket on a JD350 late 60's vintage. One cylinder rod is bent right at the end near the packing, and the packing is shot. I could probably pound it out straight, but still need to find the seal kit or new packing at least. Any ideas where to buy parts for these or has anyone changed out the cylinder with a modern one?

Thanks

NCWayne · Feb 4, 2015

Do a search for hydraulic cylinder repair in your area. If that doesn't turn anything up for you, post back as I know of a couple of them here in NC that have given me good results.

That said, any good hydraulics shop ought to be able to come up with the seals to repack yours. Too, many can either make a new rod in house, or know of an area machine shop that can make a new one. Usually what they'll do is cut the eye off of yours and weld it on to the end of a new piece of rod. The cost will vary with the size of the rod, but it's usually not unreasonable in relation to the cost of another cylinder.

kilohertz · Feb 4, 2015

Thanks Wayne,

Well, there is only one hydraulic shop in our area (small town) and they want $500 to re-rod and repack the cylinder. Since this is only for my own farm use, I am going to try to straighten the rod first, and take the remnants of the packing into a Case/IH shop who stocks cylinder seals locally, and see if they can match it up. I don't think this was "chevron" packing, it came out as 2 black rings, that look like regular type seals, all rubber with an inner lip.

cheers

PD Mechanical · Feb 5, 2015

Where are you located?
Steve. www.sadygerts.com

Jo Bird · Feb 5, 2015

You will never get it 100% straight and it will continue to take out the seals and leak oil. With the cost of oil you would be farther ahead to look for a replacement cylinder, www.surpluscenter.com/hydraulics.

smallercrawler · Feb 5, 2015

khz: Measure seals/packing, then go to McMaster.com to see if theirs will fit. As far as bent rod, you're the best judge of "what you can live with". Good luck!

kilohertz · Feb 7, 2015

Hi Guys,

Thanks for all the help. Actually found the packing in town at a machinery shop, had the o-rings in my inventory, took the rod to my local machine shop to get it straightened in their press, the junior operator then in 30 seconds managed to break off the threaded portion. Then said they would build me new one as it was their fault. It's all done and back in the machine and works 100%!!

Now back to the miss and smoke and stuff.

Cheers

Drott 4 in 1 clam cylinder needs rebuild or replace JD350

kilohertz

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NCWayne

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PD Mechanical

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smallercrawler

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