Re: 1947 'Econo Drive' operation-

Posted by HH56 On 2014/9/22 12:51:01

If you have a stock 47 car it will have the R9 OD. Instructions were kind of sparse in the 47 manual but gave the basics. They are slightly more detailed in the first version 48 22nd series manual along with photos. The first production 22nd series cars used the same R9 OD unit. Here is an excerpt from that manual showing the location of the lockout knob and basic instructions. The signal light in the 47 is in the speedo between the 6 and 7 numerals rather than below the speedo as the instructions mention for the 48. Otherwise, operation is the same.

If your car had the R11 retrofitted as some cars had done if a problem happened with the R9, then operation is almost the same except there is no longer a signal light. R11 drivers judge by speed alone when the OD is ready to engage. You can tell which unit your car has by checking the engine side of firewall, drivers side, for the type of OD relay. R9 has a squarish black box about midway down just above steering column with 6 wire terminals while the R11 is a smaller rectangular box with a fuse on the side and only 4 terminals.

There is a service training manual for the R9 available on site for download. It was printed for mechanics so very little info on operation & probably more detailed than you are looking for.packardinfo.com/xoops/html/downloads/EconoDriveTrainingBook.pdf

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