How to Use the Proof-Meter for Ford Tractors
$12.95
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This booklet was originally published in 1950 when the proof-meter came out. It explains how you can get the most out of your proof-meter and therefore how you can get even greater performance and economy from your Ford tractor! It explains each ring on the proof meter and what it means--governor, engine speed, PTO speed, belt pulley speed and hours worked. This is a licensed re-print of the original manual.
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