Cindy and I have been selling ECO parts since 1989. I have also rewrote the service manual. Actually ECO published a number of service manuals. Actually it is not a manual, it is an accumulation of individual problems. As the problems occured, they made a page for it and added it to the so called manual, all in no particular order. I rewrote most of it and I put in the order you to follow the rebuild process from the first thing to the last thing. The reason for that is the original manual was written to repair one particular problem at a time. Today, we are now rebuilding the complete meter and that is the way I wrote out manual.
Our parts can be found at this address: http://petrolianacollectibles.com/eco%2090%20parts.htm
The manual is also found on these pages.
For some time we have been offering a rebuild service, this is explained here: http://petrolianacollectibles.com/eco%2090%20literature.htm
We have also started a restore service. You send us the entire meter, we rebuild the mechanism and completely restore the entire meter. It is returned completely restored, ready to attach to your air supply and to the electric supply. Not much more than a screwdriver, wire crimper and a air supply is all you need, we even use teflon tape on every air connection. We cannot quote a price here on this because every meter is different.
Check out our website or give us a call at 314-427-3943.
Jack & Cindy Sim