JCB 801 Slewing Problem

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JBASport
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JCB 801 Slewing Problem

Post #1 by JBASport » Fri Aug 07, 2020 9:57 am

I have an old JCB 801, which has developed a problem slewing. It would only slew to the right. I have taken the floor plate off (see pictures) and by increasing the rod length, can get it to slew to the left, but lose the ability to slew to the right! Any help would be really appreciated. Thanks, Terry
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essexpete
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Re: JCB 801 Slewing Problem

Post #2 by essexpete » Fri Aug 07, 2020 11:40 am

If you can achieve slew both way by rod adjustment it might be that the linkages are excessively worn.


Topic author
JBASport
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Re: JCB 801 Slewing Problem

Post #3 by JBASport » Fri Aug 07, 2020 11:44 am

Do you mean the ball couplings at the end of the rod? Thanks Terry


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JBASport
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Re: JCB 801 Slewing Problem

Post #4 by JBASport » Fri Aug 07, 2020 12:31 pm

I have looked at the linkage more closely & noticed that some of the pins are showing signs of wear. Not sure how to remove the linkages with least disruption to replace the pins, any thought? Many thanks, Terry


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Re: JCB 801 Slewing Problem

Post #5 by essexpete » Sat Aug 08, 2020 12:12 am

I am not familiar with the machine but I guess it depends on whether or not the linkages has ball joint or jaw and clevis. A starting base might be a JCB agent to get an idea of prices then go from there to fiddling about if ridiculously expensive.


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JBASport
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Re: JCB 801 Slewing Problem

Post #6 by JBASport » Sat Aug 08, 2020 8:27 am

They are clevis pin type (see picture). I have been told it would cost many hundreds to do the repair by an agent and as it is an old machine, not really that interested in taking on the work. I am happy to do the repair, but getting at the connections is proving difficult. Thanks, Terry
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Re: JCB 801 Slewing Problem

Post #7 by essexpete » Sun Aug 09, 2020 8:33 am

I was really meaning price the parts as original parts rather than trying to fabricate/repair.


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JBASport
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Re: JCB 801 Slewing Problem

Post #8 by JBASport » Mon Aug 10, 2020 7:40 am

I understand. The parts are not too expensive, its getting them removed is the problem. You will see what I mean in the pictures. Thanks, Terry
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Re: JCB 801 Slewing Problem

Post #9 by essexpete » Mon Aug 10, 2020 9:42 am

I have mini diggers generally a pig to work on as everything wedged into a tight package. You might find that by unbolting a large component you might move it just enough without disconnecting everything. I moved a hydraulic and diesel tank on mine to get access to an engine mount but did not Disconnect pipes.


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