Problems With The A/c System On My Cat E70b

Best Practices for Problems With The A/c System On My Cat E70b

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Is the system still R12 or is it retrofitted to R134a? they use a different size valve on the two systems.The valve is normally next to the evaporator, the tubes/hoses run to the evaporator via the expansion valve and the valve is normally in the same compartment and only a few inches or foot away.Most R12 components are not available anymore.

They are converting it to R134A. I am working offshore, at the moment, so was not able to look at it myself. I did not know if it is a stand alone (in-line) valve, or if it is a block mount valve. I would think that if it is an in-line valve, you could just find a valve that is rated for the correct tonnage and has the correct size ports. I was reading some of the other forum threads and saw where someone commented that the Cat E70B and Cat 302 use similar parts. Wondered if I might go in that direction. I am trying to get the A/C working before I go back home, as I have a lot of work to do with it. Thanks for your reply.

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