Bergeon waterproof tester - problem with air leak

[rafau]

Hi,

I have a problem with my Bergeon 5555 waterproof tester. It loses air pressure when is pumped up to about 2atm. Sometimes quicker than 2atm. The air escapes through the post which is used to hang the watch on. I marked it with the red circle on the photo. There are no other leaks but this one makes the tool almost useless.

Do you know any way of sealing this spot? Any lubricant or... anything? I would say there is a need of gasket replacement, but can I open this lid somehow?

 

Edited April 27, 2020 by rafau

[nickelsilver]

From the underside, if you take the hook for the watch off (one screw) and the circlip, you can slide the rod out the top. There is, as I recall, a, O ring in the hole. It may be very hard and tricky to get out. In the meantime try some silicone grease and see if that helps.

 

Much more annoying on these is when they start to leak water around the base under pressure!

[rafau]

Ok, thank you, I will give it a try.

[rafau]

My machine is an older type, no screw or circlip

It appears that the gasket is also missing on that end.

[nickelsilver]

Hmm, you'll have to figure out which end is easier to disassemble then, top or bottom, and get the rod out. But try some silicone first, it might get you up to 3 bars.

[rafau]

I couldn’t find the silicone nearby so I ordered it from a watchmaker’s supplier. Also ordered some replacement gaskets. I will take off the bottom part to get the rod out.
I will let you know if it all worked after the weekend

[rafau]

Ok, so this is how it ended:

I actually needed two gaskets to get rid of the leak. Here are the places where they should be installed. One of them was missing...





It was more difficult to place the new ones than getting out the old ones.

Here’s how the old one looked like, well worn:



New gaskets for this Bergeon bought from a famous wholesale shop:



I also put a new gasket on the post:



And as the last step, I put some silicone grease on the post. It moves a lot more difficult now and is more stiff. As a result, it keeps 3atm easily now!



Thanks for your advice!

[jdrichard]

Ok, so this is how it ended:

I actually needed two gaskets to get rid of the leak. Here are the places where they should be installed. One of them was missing...





It was more difficult to place the new ones than getting out the old ones.

Here’s how the old one looked like, well worn:



New gaskets for this Bergeon bought from a famous wholesale shop:



I also put a new gasket on the post:



And as the last step, I put some silicone grease on the post. It moves a lot more difficult now and is more stiff. As a result, it keeps 3atm easily now!



Thanks for your advice!

Where did you get the gaskets?


Sent from my iPhone using Tapatalk Pro

[rafau]

They have spare gaskets at cousins, if I can mention the name