Spring and shims for Sherwood 5100 Brut

[Entropyman]

I have recently installed a service kit on a Sherwood 5100 Brut. The intermediate pressure (IP) is steady at 120 psi and the dry purge flow is good. The manual says that the IP should be 135-150 psi. I have searched the internet to try to find the shims and a new spring to change the IP but have only found a place in Australia (I'm in the U.S.). My LDS says that they do not sell parts. Any suggestions?

 

[W W Meixner]

EM...

At 120 PSI your IP is too low for anything other than bailout/deco less than 60 ft...

You always want to check and record your IP prior to any dis-assembly...

Unless you're Sherwood reg service certified...you should not be servicing your regs...

There will likely be nothing wrong with the spring...you may need a second or even a third shim...

Suggest you take your reg set to an authorized Sherwood dealer...as continued dis-assembly...and re-assembly by you will inevitably damage your new service kit ''O'' ring set and may end up putting more than one ''impression'' in your HP seat...which will cause a HP leak that cannot be corrected without replacing the existing HP seat...

Dive Safe...

Warren...Certified Sherwood Reg Tech...

 

[grf88]

EM...

At 120 PSI your IP is too low for anything other than bailout/deco less than 60 ft...

You always want to check and record your IP prior to any dis-assembly...

Unless you're Sherwood reg service certified...you should not be servicing your regs...

There will likely be nothing wrong with the spring...you may need a second or even a third shim...

Suggest you take your reg set to an authorized Sherwood dealer...as continued dis-assembly...and re-assembly by you will inevitably damage your new service kit ''O'' ring set and may end up putting more than one ''impression'' in your HP seat...which will cause a HP leak that cannot be corrected without replacing the existing HP seat...

Dive Safe...

Warren...Certified Sherwood Reg Tech...

This is the DIY Forum.

 

[JamesBon92007]

I have recently installed a service kit on a Sherwood 5100 Brut. The intermediate pressure (IP) is steady at 120 psi and the dry purge flow is good. The manual says that the IP should be 135-150 psi. I have searched the internet to try to find the shims and a new spring to change the IP but have only found a place in Australia (I'm in the U.S.). My LDS says that they do not sell parts. Any suggestions?

I too have had no luck finding shims. Please post the source if and when you find them

 

[grf88]

If someone could post the thickness and diameter of the standard shims it would be easy to improvise something.

 

[Entropyman]

Thickness, ID, and OD should be easy enough. Does anyone know what material they're made from?

 

[grf88]

Thickness, ID, and OD should be easy enough. Does anyone know what material they're made from?

I would think that brass shim stock would work.

 

[JamesBon92007]

I would think that brass shim stock would work.

Since this particular first stage does not get wet then there shouldn't be any problems with electrolysis.

 

[Entropyman]

They look like nylon. I'll take it apart tonight to get measurements.

 

[grf88]

If they are Nylon you can probably find a suitable Nylon washer.