Chair Rotation (1 Viewer)

terryallan

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Jan 8, 2011
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My passenger side chair doesn't rotate and I need to release the central nut which holds the swivel plate from rotating. The large round nut has four notches which obviously needs a specialist spanner/tool to fit over it and so turn the nut. I suspect many people will just whack into one of the notches with a chisel and hammer to release the nut - but that will damage the notch. Anyone know if a tool exists and where I can find one to buy?

Thanks
 

scotjimland

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Jul 25, 2007
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This supplier has two makes but makes no mention of a special spanner.. but there are at least two makes, maybe more. Link Removed

If you know the make try Googling for the manufacturer or retailer who may have or know where to find the spanner required..


PS.. I see we have the same surname.. where about in Scotland are you from .. we could be related .. :roflmto:

and welcome to the forum
 

wivvy's dad

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Are you sure it should rotate?
Where is the rotatiion release handle?
What's the vehicle?

We need more info.......

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terryallan

terryallan

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Thanks for replies.

The van is a Pilote CityVan CV60H (2008). It is Fiat Ducato based. The handle is on the left hand side of the passenger seat - right hand side of the driver's seat. The seat should rotate. I can see what needs to be done but I don't want to damage the retaining round 'nut'.

The shape of the nut is as below. It is of course threaded in the middle.

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wivvy's dad

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Motorcycle rear shock absorber preload adjusting collar has similar profile.
Now we need the diameter of the nut as per diagram, or is that to scale.
 

scotjimland

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Jul 25, 2007
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C Nut spanner

The spanner you need is called a C Nut spanner.. come in many sizes but now you know what to ask for .. and what it looks like ..


ac0d5bc1-acbd-496a-a9ec-9d3600a1a06a_300x98.jpg

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terryallan

terryallan

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Jan 8, 2011
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C Nut Spanner

Thanks for that information. I remember I used to have one like that for my bicycle many years ago when I had a bike.
 
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terryallan

terryallan

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Jan 8, 2011
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More information.

It is a FASP seat mechanism.

The outside diameter of the round nut is approximately 65mm or 2.5 inches.

Pictures below may provide further detail. The nut is recessed as shown and so a C spanner may not work - depending on the size of the spanner. It is a spanner more like that used for the nut under the waste on a sink that I assumed I would need.

Link Removed
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Link Removed
Link Removed

Thanks again
 
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terryallan

terryallan

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Jan 8, 2011
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Sink spanner

I found my sink spanner and bicycle C spanner. Of course neither are any good for this job but I took pictures of them anyway.

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steles

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Sep 2, 2007
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It looks from the pics that somone has already attacked it with a chisel. Best if all else fails to use a drift with blunt end, will do far less damage. Correct spanner is just a piece of tube like a box spanner with the end shaped to fit into slots in nut. Has the seat not turned from new, seems like a visit to dealer is best option.
Steles
 
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terryallan

terryallan

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Jan 8, 2011
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Since 2010
Decision

Yes I have decided that I am going to the local dealer.

Thanks again
 

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