Twsbi Diamond 580 'o's ?

[Eclectica]

Hi there,

 

Apologies in advance for such a silly question!

 

I have had a TWSBI diamond 580 for a while and was giving it a good clean the other day - you know, nib/section unscrewed and shaking the water out of the piston etc. - when I had a horrible thought that there might have been an 'O' ring in there somewhere. I looked on the floor but found nothing - if it was there, it could have gone down the plughole in sink, bath or worse!

 

Now looking at the updated diagram of the 580 as supplied clearly shows 3 'o'-rings.

 

http://www.peggysparlour.co.uk/pubpics/twsbi580-1.jpg

 

 

Mine now does not have an 'o' ring immediately behind the feed where it connects to the piston reservoir.

This is most likely 'o'-ring 3 in the diagram, albeit when in working position, it is to the left of 'o'-ring 7 on the inside.

 

(It has the other 2 'o'-rings though; on the body and under the metal nib ring).

 

http://www.peggysparlour.co.uk/pubpics/twsbi580.jpg

 

My question is -

 

Is the 'o'-ring at the union of the end of the black feed to the clear plastic piston body actually necessary or actually ever present? (If I need one where can I get one?)

 

Clearly, I do not want to be in the situation where everything starts leaking all over the place in an important meeting etc!

 

Happy New Year all.

 

Eclectica

 

 

 

 

[studiohead]

Yes it is present on the 580 Nib.

 

It depends, but in some of the pens I work with, it is needed, others it is not. I do recommend it as it will stop ink dripping in from that part. (Happens alot to Diamond Minis which I used as test pens for customers if the O Ring is missing it will leak). And the black part which TWSBI calls a Feeder holder is most often the part which fails for my customers. So we have replacements on hand just in case.

[FoszFay]

If you are going off the diagram, and looking at No. 3, it is not in that position when assembled.

 

Here is where each 'o-ring' goes when fully assembled:

 

 

 

Here is the 'No. 3' 'o-ring' on the nib collar when assembled.

 

 

Tom.

Edited January 6, 2015 by FoszFay

[amberleadavis]

Great pictures and explanations!

[Eclectica]

Thanks for the replies.

 

So if I have this right, there is no 'o' ring seal between parts 2 and 8, it just looks that way on the diagram.

 

This is good news that I did not flush anything away accidentally!

 

Cheers,

E.

[pearlfection]

My TWSBI had no O-ring. (Not like the pictures above.) So it was always leaking.

[FoszFay]

Thanks for the replies.

 

So if I have this right, there is no 'o' ring seal between parts 2 and 8, it just looks that way on the diagram.

 

This is good news that I did not flush anything away accidentally!

 

Cheers,

E.

 

You're right. The diagram shows an ''exploded'' view, making the 'o-ring' appear to be ''between'' No. 2 and No. 8, when it is actually around the nib collar (No. 2) and sandwiched by No. 4, the little, chrome piece.

 

Did you count how many 'o-rings' you have on your pen? Do you have the 3 shown? If you do, then all is good.

 

Tom.