Cylinder seals replacement JCB 3C3

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Cylinder seals replacement JCB 3C3

Post #1 by Unknown1875 » Tue Jan 17, 2023 1:19 pm

Hello there,
I thought i would share my little experience in changing the seals.
It's definitely not as hard as I thought initially.
So I first ordered this seal kit from VicaryPlants
As far as I'm concerned, all the big cylinders are the same on the 3c3.

The hardest part for me was removing the cap, first I had to make some kind of big wrench with a scrap piece turned on the lathe. I'm sure similar design could be made with a grinder and a welder. Then I added metal bars on the cap that my wrench could grab.


Then I had to attach the end of the rode to an anchor point and then slowly retract the boom (extendhoe). It could also be done with a tirfor or equivalent.
I thought I had to have a 58mm socket for the nut on the rode but it's not tight ! You just have to remove the pin.
I had a bit of a struggle only on one inner seal but not impossible if you twist it right.
Putting it together was straight forward. I made a mark on the cap before removing so that tightening torque wouldn't be a problem.


Longest part of the job was making the tool to remove the cap.
I think it's way worth doing.

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