Duo-Cone Seal installation

[791018]

a problem occured when the seals fixed and used. after a few days, it leak. This CATerpillar seals(9W6692) was used so many times on my CSD. I found some wear on the seals ring housing but the problem is, we did not have the specification and dimensions of the housing. so, i have to fabricate new housing depending to the seal size. Using a Reverse Engineering Method, can i refer to seals ring dimensions to get the housing dimensions?

 

[sprintcar]

Not really. Contact CAT and they can give you the dimensions for the toric seat. The diameter, angle and surface finish are extremely critical.

Caterpillar Precision Seals
517 Industrial Park Rd
Franklin NC 28734
You can find their website and phone contact info.

Also review the material of the faces. The stamped steel rings have limited life so you can upgrade to Stellite or C-6 material. Toric material can also have an effect.

Installation techique is important. Make sure everythins is CLEAN. Use their seating tool, the proper lubricant and make sure everything is CLEAN (yes, it is important).

Lube the seal faces with pure moly (no fillers) or a light synthetic oil just prior to assembly. Make certain there is adequate lubrication inside the seal cavity (assuming you're sealing something out) and verify that the GAP between the seal holders is correct for the application and rotating speed.

Also be certain your shaft axial motion is within the limits of the seal.

Hope this helps.

"If A equals success, then the formula is: A = X + Y + Z, X is work. Y is play. Z is keep your mouth shut."
-- by Albert Einstein

 

[whizzz]

I agree with Sprintcar,
i've also faced the same problem as you getting now, so, i went back to proper procedures installing the parts. there are too many important steps was always skipped by user that i found, the most important things is the 'clearance' between the seal housing and the seal ring which can ensure your seal sitting in the right position and it fixed. for your 9W6692 (before this the number is 9G9532 maybe), the minimum clearence (if refer to the handout in the seal box) is about 0.04" or almost 1mm. this things always missed. By logic, it was the seating tools thickness. I advice you to refer back to instruction given in the box. sure it'll not miss again!!