O - Ring

[Count Pierre]

Anyone over there having trouble with the Battery Compartment O - Ring seal??

Quite a few having trouble here in OZ with water leaks!

 

[Nes (south Coast-CA)]

Mine leaked when I first used it in water. I cleaned the O-ring slot and used divers lubricant as a sealant. Hasn't leaked since. SunRay sells a kit containing 3 O-ring replacements and rubber plugs for about $16.95. Don't know if he ships to Oz, but someone there probably has them in stock or can get them from Minelab. I think your original was either damaged or in the slot incorrectly... nes

 

[CopyTech99]

I really don't understand why the gasket has the kinks in it. There has got to be a better setup.... And, an improved part at some point.

 

[Crusty]

I really don't understand why the gasket has the kinks in it. There has got to be a better setup.... And, an improved part at some point.

Not sure what you mean by "kinks". It should not have kinks and doesn't if installed properly. Never has a leak in my CTX but it is important to keep the O ring and grove very clean.

Dave

 

[C&RHunter]

The seal has to be replaced the same way it was taken out. The top two corners are more " square" and straight across the top. The lower part of the battery is more curved. If the seal is put in with the upper straight section in the lower curved part of the groove, the corners appear kinked. Also, the seal and mating surfaces need to be extremely clean. As mentioned by others, divers lub helps seal the oring a lot.

 

[rsarge1]

I picked up some silicone grease from the local scuba shop but the guy at the store said you should not use on O-rings made of silicone does anyone know what the O-rings are made of?

 

[CopyTech99]

I really don't understand why the gasket has the kinks in it. There has got to be a better setup.... And, an improved part at some point.

Not sure what you mean by "kinks". It should not have kinks and doesn't if installed properly. Never has a leak in my CTX but it is important to keep the O ring and grove very clean.

Dave

The square corners that were mentioned.... seems odd to have those in a seal

 

[GKMan]

They aren't 90 degree turns in the o ring, but more of a rounded off turn. I had read a while back that some folks were not properly aligning the "kinks" in the corners and that was causing failures

 

[Welwood470]

The seal has to be replaced the same way it was taken out. The top two corners are more " square" and straight across the top. The lower part of the battery is more curved. If the seal is put in with the upper straight section in the lower curved part of the groove, the corners appear kinked. Also, the seal and mating surfaces need to be extremely clean. As mentioned by others, divers lub helps seal the oring a lot.

C&R, what you say is true, but I just observed this minute while charging the battery that there is another issue that we may have overlooked. When the seal is laid out on
a flat surface there is also a "top" and "bottom". One is flat and the other is rounded. I am assuming the flat side goes in first. I was only able to determine this for certain under my
bench magnifier. Old age and low light has taken its toll. Check it out.

 

[nagov]

The seal has to be replaced the same way it was taken out. The top two corners are more " square" and straight across the top. The lower part of the battery is more curved. If the seal is put in with the upper straight section in the lower curved part of the groove, the corners appear kinked. Also, the seal and mating surfaces need to be extremely clean. As mentioned by others, divers lub helps seal the oring a lot.

C&R, what you say is true, but I just observed this minute while charging the battery that there is another issue that we may have overlooked. When the seal is laid out on
a flat surface there is also a "top" and "bottom". One is flat and the other is rounded. I am assuming the flat side goes in first. I was only able to determine this for certain under my
bench magnifier. Old age and low light has taken its toll. Check it out.

Since my battery is back in now, I can't check that out but I wonder is it that the "o-ring" takes a set? I know the sealing surface of the battery is flat, is the inside of the unit concave? That may account for the shape. If my thoughts are wrong, there will be a correct way to put it in due to shape.

Easy way is to check new ones and see if they are flat on one side.... I'm betting they aren't.... but I'm a loser when I bet!

Cliff

 

[Welwood470]

The seal has to be replaced the same way it was taken out. The top two corners are more " square" and straight across the top. The lower part of the battery is more curved. If the seal is put in with the upper straight section in the lower curved part of the groove, the corners appear kinked. Also, the seal and mating surfaces need to be extremely clean. As mentioned by others, divers lub helps seal the oring a lot.

C&R, what you say is true, but I just observed this minute while charging the battery that there is another issue that we may have overlooked. When the seal is laid out on
a flat surface there is also a "top" and "bottom". One is flat and the other is rounded. I am assuming the flat side goes in first. I was only able to determine this for certain under my
bench magnifier. Old age and low light has taken its toll. Check it out.

Since my battery is back in now, I can't check that out but I wonder is it that the "o-ring" takes a set? I know the sealing surface of the battery is flat, is the inside of the unit concave? That may account for the shape. If my thoughts are wrong, there will be a correct way to put it in due to shape.

Easy way is to check new ones and see if they are flat on one side.... I'm betting they aren't.... but I'm a loser when I bet!

Cliff

Sorry Nagov, you lost again. I just remembered after I had already posted that I had two new ones in a ziplock in my bag. Sure enough they are flat
on one side and roundy on the other. Would you agree that the flat side should go down?

 

[Welwood470]

Sorry, just couldn't stand it......had to check it out. The inside of the unit is indeed flat.

 

[C&RHunter]

That is interesting about a flat and a rounded surface. Something I never looked for. Something for me to check out and see how mine is installed now. ...

 

[nagov]

The seal has to be replaced the same way it was taken out. The top two corners are more " square" and straight across the top. The lower part of the battery is more curved. If the seal is put in with the upper straight section in the lower curved part of the groove, the corners appear kinked. Also, the seal and mating surfaces need to be extremely clean. As mentioned by others, divers lub helps seal the oring a lot.

C&R, what you say is true, but I just observed this minute while charging the battery that there is another issue that we may have overlooked. When the seal is laid out on
a flat surface there is also a "top" and "bottom". One is flat and the other is rounded. I am assuming the flat side goes in first. I was only able to determine this for certain under my
bench magnifier. Old age and low light has taken its toll. Check it out.

Since my battery is back in now, I can't check that out but I wonder is it that the "o-ring" takes a set? I know the sealing surface of the battery is flat, is the inside of the unit concave? That may account for the shape. If my thoughts are wrong, there will be a correct way to put it in due to shape.

Easy way is to check new ones and see if they are flat on one side.... I'm betting they aren't.... but I'm a loser when I bet!

Cliff

Sorry Nagov, you lost again. I just remembered after I had already posted that I had two new ones in a ziplock in my bag. Sure enough they are flat
on one side and roundy on the other. Would you agree that the flat side should go down?

Told you, it is a sure bet against me when I say that..... So if nothing else, it made me take mine apart again... and indeed, the o-ring does have a flat side and a round side and BOTH sealing surfaces (o-ring contact surfaces) are flat... so I'll bet it doesn't make any difference which way it goes..........

 

[Welwood470]

The seal has to be replaced the same way it was taken out. The top two corners are more " square" and straight across the top. The lower part of the battery is more curved. If the seal is put in with the upper straight section in the lower curved part of the groove, the corners appear kinked. Also, the seal and mating surfaces need to be extremely clean. As mentioned by others, divers lub helps seal the oring a lot.

C&R, what you say is true, but I just observed this minute while charging the battery that there is another issue that we may have overlooked. When the seal is laid out on
a flat surface there is also a "top" and "bottom". One is flat and the other is rounded. I am assuming the flat side goes in first. I was only able to determine this for certain under my
bench magnifier. Old age and low light has taken its toll. Check it out.

Since my battery is back in now, I can't check that out but I wonder is it that the "o-ring" takes a set? I know the sealing surface of the battery is flat, is the inside of the unit concave? That may account for the shape. If my thoughts are wrong, there will be a correct way to put it in due to shape.

Easy way is to check new ones and see if they are flat on one side.... I'm betting they aren't.... but I'm a loser when I bet!

Cliff

Sorry Nagov, you lost again. I just remembered after I had already posted that I had two new ones in a ziplock in my bag. Sure enough they are flat
on one side and roundy on the other. Would you agree that the flat side should go down?

Told you, it is a sure bet against me when I say that..... So if nothing else, it made me take mine apart again... and indeed, the o-ring does have a flat side and a round side and BOTH sealing surfaces (o-ring contact surfaces) are flat... so I'll bet it doesn't make any difference which way it goes..........

Careful now.....I'm thinking the rounded side goes up.....made so to allow for compression and sealing from the top since that would be the first point of entry for water, otherwise
why would they (engineers) go to the trouble of tooling up to make one side round and one flat all for nothing? Just saying.............

 

[nagov]

The seal has to be replaced the same way it was taken out. The top two corners are more " square" and straight across the top. The lower part of the battery is more curved. If the seal is put in with the upper straight section in the lower curved part of the groove, the corners appear kinked. Also, the seal and mating surfaces need to be extremely clean. As mentioned by others, divers lub helps seal the oring a lot.

C&R, what you say is true, but I just observed this minute while charging the battery that there is another issue that we may have overlooked. When the seal is laid out on
a flat surface there is also a "top" and "bottom". One is flat and the other is rounded. I am assuming the flat side goes in first. I was only able to determine this for certain under my
bench magnifier. Old age and low light has taken its toll. Check it out.

Since my battery is back in now, I can't check that out but I wonder is it that the "o-ring" takes a set? I know the sealing surface of the battery is flat, is the inside of the unit concave? That may account for the shape. If my thoughts are wrong, there will be a correct way to put it in due to shape.

Easy way is to check new ones and see if they are flat on one side.... I'm betting they aren't.... but I'm a loser when I bet!

Cliff

Sorry Nagov, you lost again. I just remembered after I had already posted that I had two new ones in a ziplock in my bag. Sure enough they are flat
on one side and roundy on the other. Would you agree that the flat side should go down?

Told you, it is a sure bet against me when I say that..... So if nothing else, it made me take mine apart again... and indeed, the o-ring does have a flat side and a round side and BOTH sealing surfaces (o-ring contact surfaces) are flat... so I'll bet it doesn't make any difference which way it goes..........

Careful now.....I'm thinking the rounded side goes up.....made so to allow for compression and sealing from the top since that would be the first point of entry for water, otherwise
why would they (engineers) go to the trouble of tooling up to make one side round and one flat all for nothing? Just saying.............

Well, I know in the few times I've had my battery out to charge odds are I have had it in both ways.... no leakage so far and I had it submerged for 8 hours yesterday...... Maybe Minelab could clear this up....

Cliff

 

[Digger]

http://www.minelab.com/usa/customer-care/product-notices?article=109061

 

[nagov]

http://www.minelab.com/usa/customer-care/product-notices?article=109061

Thanks Digger, good info but doesn't mention anything about the o-ring cross sectional shape. IF you look real close (use a loupe) you will see a small flat part on one side of the o-ring, that is what there is a debate on .... round side up or down or doesn't it matter.

Cliff

 

[Digger]

With a flat side and a rounded side, it is technically a D ring. These are used because it resists spiral failure. The flat side that forms the "D" shape keeps the ring from rolling, where a typical round O-Ring will start twisting or rolling under movement and will eventually fail.
In this instance, it may not matter. But I would think that the flat side (toward the detector) would help hold the ring stationary while you attach the battery pack. The rounded side would conform to the surface of the pack. I'll drop Minelab an email and find out for sure. HH Randy

 

[Welwood470]

Cliff,

as I stated earlier, my vision isn't what it used to be, but the last two photos in Minelabs pictures
appears to show the rounded part up. Still would like to know if they have any thoughts, yea or nea
on the subject. I'm sure Digger will "dig" a little deeper.