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Terry,OH · 01-14-2023, 08:04 AM

The books above are not by Heyer or Ford. But they can be useful. Heyer operating instructions are printed on cards that are under the side cover of the machine. Ford operating instructions are in the Ford Service bulletins. Parts will be hard to find original except for the electrical gauge on the front. The Heyer machine is not as good in operation as a Sun or others. It uses a carbon pile for adjustment of RPM of the motor when the carbon heats up the adjustment changes and require constant readjustment, plus the Heyer uses car type 6V batteries and not 120Vac. You may have to use more modern replacement parts with the same original values as what you are replacing. Unless you can find someone willing to strip components from another Heyer.

01-14-2023, 08:04 AM	#8
Terry,OH Senior Member Join Date: May 2010 Posts: 5,394	Re: Ford Laboratory Test Set Parts The books above are not by Heyer or Ford. But they can be useful. Heyer operating instructions are printed on cards that are under the side cover of the machine. Ford operating instructions are in the Ford Service bulletins. Parts will be hard to find original except for the electrical gauge on the front. The Heyer machine is not as good in operation as a Sun or others. It uses a carbon pile for adjustment of RPM of the motor when the carbon heats up the adjustment changes and require constant readjustment, plus the Heyer uses car type 6V batteries and not 120Vac. You may have to use more modern replacement parts with the same original values as what you are replacing. Unless you can find someone willing to strip components from another Heyer.