Shift pattern On the ground speed and pulling is what you're talking about I suppose on the shift pattern. Low in both shifts 2nd main- low aux 1st main -high aux 3rd main -low aux 2nd main- high aux 3rd main- high aux. You should have a Lucas 12V Generator and Lucas voltage regulator if it still has factory spec replacement parts on it. To check the generator take the bat wire off the gen and crank the tractor. Connect the battery tester you have to the batt post on the gen. It should read about 16 Volts and 14 amps @ 1500 RPM's. If it does'nt read that you need a set of brushes in the gen. If the gen is making fire check the gaps and points in the regulator or cut-out relay. Be sure the relay or voltage regulator is grounded good. Sometimes the mounting bolts will work loose or become corroded and it will lose it's ground contact. If it's not grounded the points cannot open and shut right. Assuming the gen is making fire and the ground on regulator is good, If you have a Cut-out Relay the points need cleaned and set at 0.020", then set the closing range at 12.7 to 13.3 volts.
If you have a voltage regulator clean the points and set them at 0.015", and your voltage range should be 15.6 to 16 volts.
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