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Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Thu Jun 27, 2013 11:50 pm
by MetalHog
Hello All,

I want to change a hydra clamp seal in a 82 3CX. I suspect the seal is leaking and dripping a small amount of fluid. I have the replacement seal, but I can't get the nut off the bolt that runs through the seal casing into the rail. I can turn the nut alright, but the bolt is turning at the same time.

I'va had a look at the schematic diagram and the other end of this bolt appears d or o shaped. I've had a look at it through the rail and it's turning as above when I apply spanner pressure :dizzy: to the bolt. I've tried jamming a screwdriver and various bit's of metal to try to get the d end to bite and not turn, but no look so far.

Is there a special tool for this ? or as anyone any advice ?

Cheers

Re: Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Fri Jun 28, 2013 8:45 pm
by philwheelton
You need a new nut and bolt, just cut the old nut off, make sure you have the kingpost the right side to be able to remove the bolt once you have cut the nut off

Re: Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Fri Jun 28, 2013 9:51 pm
by MetalHog
Ok. This I will do.

Thanks.

Re: Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Sun Jun 30, 2013 4:17 pm
by derod
Hi Paddy. I have the same model and year JCB, can you tell me which service manual you use or where I can get one please,

cheers Rod

Re: Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Mon Jul 08, 2013 11:36 pm
by MetalHog
Hi Rod,

Firstly, thanks to Phil for the advice regarding the hydra clamp bolt. I cut it off on Tuesday and tapped the bolt shaft out through the rail. I got a secondhand bolt and better rail washer. I replaced the clamp seals, re-assembled and she's as good as new.

Rod,
In relation to the manual question, I don't have one. I got the schematic of the hydra clamp off a chap in a machinery spares store, I replaced the seals in the dipper ram on this machine last month and I asked the guy about the hydra clamps. I got a set of seals for all that may need them in the future. She's leak free since then, a bit of play in the slew and needing a paint job and glass tlc but all round in good condition.

Cheers

Re: Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Sat May 10, 2014 10:27 pm
by derod
Thanks mate, I have some emailed gearbox diagrams for our machines from JCB Technical, give me a shout if they are any use to you,

ps, sorry for delay in replying, I had a wee heart attack!!

cheers Roddy

Re: Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Sun May 11, 2014 4:47 pm
by Jeremy Rowland
derod wrote:Thanks mate, I have some emailed gearbox diagrams for our machines from JCB Technical, give me a shout if they are any use to you,

ps, sorry for delay in replying, I had a wee heart attack!!

cheers Roddy


Hope your feeling better now! :thumbup:

Jeremy

Re: Hydra Clamp Removal JCB 3CX '82 White Cab

Posted: Tue May 13, 2014 8:07 am
by derod
Thanks J, had a wee op and all good now,
cheers crofter