Posted by TJV on June 09, 2012 at 20:07:11 from (67.230.241.17):
In Reply to: Tach 986 posted by Help! on June 08, 2012 at 21:29:14:
If it has the digital electrical tach there is a switch that supplies it power to the tach after the tractor gets oil pressure. I have had these switches go bad. the switch is screwed into the oil gallery on the block just to the rear of the oil filters. I replaced one on our 186 about 3 weeks ago and found a switch at napa for about $8.50 and Case IH wanted about $60 for it. the napa # is OP6624 or OP6616. I like the first one it is physically shorter in size but either one will fit they and work the same.
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Today's Featured Article - Tractor Profile: Earthmaster - by Staff. This tractor, manufactured by the Earthmaster Farm Equipment company in Burbank, California was made for only two years. The Model C came out in 1948 and was followed by the "CN" (narrow-width model), "CNH (narrow-width high-crop model), "CH" (high-crop), "D" and the "DH" (high-crop) in 1949. The main difference between the models was tire size, tractor width and cultivating height. The "D" series were about 20 inches wider overall than the
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