Buhler 2335, 2425, 2290, 2375, 2360 manual Setting the Tire Rolling Radius

SECTION 2 - OPERATION

1.Setting the Tire Rolling Radius

NOTE: Setting the tire radius is only necessary when the tractor is not equipped with the Tractor Performance Monitor option. If the tractor being calibrated is equipped with the performance monitor, skip this step and proceed to “Programming Units of Ground Speed Measure.”

A.If the tractor is not equipped with the optional Tractor Performance Monitor, the upper portion of the monitor will flash “RAD” with “SET UP” displayed when the calibration mode is first entered. The lower portion of the monitor will have a number displayed with the tenth digit (0.1) flashing.

B.Without a Tractor Performance Monitor radar unit installed on the tractor, it is necessary to measure the rolling radius of the tires that are installed on the tractor and program this value into the system for accurate displays of ground speed.

C.To measure the rolling radius of the tire, the tractor must have its duals/triples installed, if equipped, and be properly ballasted and inflated (See “Ballasting” later in this section). Park the tractor on a flat surface and apply the park brake. Take a tape measure and accurately measure the distance from the center of the level plug, 1, (located next to the axle oil level sight gauge) to the ground on the front and rear axle. The measurement must be taken from the exact center of the level plug. Record these measurements.

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