Hydraulic leak in JCB 3C mk II

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Jcb 3cs
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Re: Hydraulic leak in JCB 3C mk II

Post #11 by Jcb 3cs » Wed Jul 18, 2012 12:49 pm

Hi everybody on the site! I am the happy owner of a Jcb 3CS II Machine serialnr: 3CS 117001/3
Tractor serialnr : 384 B 219696
Engine serialnr: 44466
I think it is a 1977 model . Can anybody help me with the spesifications of an actual hydraulic fluid to top up the level or to refill instead of the old .I have replaced the filter but not the 200 litres! The local Ford tractor dealer could not say it for sure . but compared to the Ford 555 which should have a fluid with a higher content of lubrication .
Jcb 3CS - Norway


essexpete
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Re: Hydraulic leak in JCB 3C mk II

Post #12 by essexpete » Wed Jul 18, 2012 2:18 pm

I would have thought a 36 or better 46 spec would be correct.


svkenn
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1974 JCB 3c Hydraulics stopped working.

Post #13 by svkenn » Sun Sep 02, 2012 10:40 pm

Hi, was using backho today when after about 30 mins it started to stop working, got slower and then not extending out to full extend. then packed up. i found if i put engine on full bore it would just about extend but very slowly. could this mean new pump at the front, if so any body now part no.


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Re: Hydraulic leak in JCB 3C mk II

Post #14 by philwheelton » Mon Sep 03, 2012 12:05 am

try it again when it's cooled down if it works ok when it's cold and slows down when warm it could be the pump


svkenn
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Re: Hydraulic leak in JCB 3C mk II

Post #15 by svkenn » Tue Sep 04, 2012 10:38 pm

thanks for that! but still the same. backhoe and front laoder only works slow and when engine is on full revs. does this look like a the pump. if so any body know what it is on a 1974 jcb.

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Mark.Rive
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Re: Hydraulic leak in JCB 3C mk II

Post #16 by Mark.Rive » Wed Sep 05, 2012 8:51 pm

svkenn wrote:thanks for that! but still the same. backhoe and front laoder only works slow and when engine is on full revs. does this look like a the pump. if so any body know what it is on a 1974 jcb.


Hydro filter okay? Mark


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Re: Hydraulic leak in JCB 3C mk II

Post #17 by svkenn » Wed Sep 05, 2012 9:10 pm

not sure is there a way of finding out. Mark or is it just something i should do first. to be fare its prob not had it changed for years. cheers.

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Re: Hydraulic leak in JCB 3C mk II

Post #18 by Mark.Rive » Wed Sep 05, 2012 9:40 pm

svkenn wrote:not sure is there a way of finding out. Mark or is it just something i should do first. to be fare its prob not had it changed for years. cheers.


Yep, Id check the strainer in the nearside tank, and replace the filter, if either or both are full of crud or have collapsed they could seriously effect things. Sometimes the pump will make a fair old noise to when its struggling to keep up! Mark


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Re: Hydraulic leak in JCB 3C mk II

Post #19 by JOHN C B » Sun Oct 14, 2012 7:57 pm

Robertt wrote:Help please
My 1975 3C11 is leaking a lot of hydraulic oil from the overflow(?)pipe on the bottom of the king post, it usedto be the occasional drip now its almost a stream, I added a gallon of oil this morning, and it now needs another gallon, how do I fix it?
Also the steering seems to have taken a holiday, sometimes it work, others its very stiff, and others the steering wheel is for decoration only


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Re: Hydraulic leak in JCB 3C mk II

Post #20 by JOHN C B » Sun Oct 14, 2012 7:58 pm

hi i have the same problem with mine did you manage to fix yours and what was the problem,was it an easy fix.


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