Buhler 2335, 2425, 2290, 2375, 2360 manual Feedback Potentiometer, 147

SECTION 2 - OPERATION

FEEDBACK POTENTIOMETER

On occasion, the feedback potentiometer, located on the right hand side of the rockshaft, may need to be adjusted. This will ensure that the lift cylinders do not overextend or retract too far and place the hydraulic system in high pressure standby during full raise or lower modes of operation while in the automatic mode. To adjust the potentiometer, use the following procedure:

1.Park the tractor on level ground. Set the parking brake and engage the articulation lock.

2.Engage the manual switch and raise the hitch to the full up position.

3.Turn the engine off.

4.Measure the length of the exposed lift cylinder rod from the base of the rod ,1, to the grease zerk, 2.

5.Start the tractor and lower the three-point hitch.

6.Engage the automatic mode of operation and raise the hitch to the full UP position.

7.Turn the engine off.

8.Measure the length of the exposed lift cylinder rod from the base of the rod , 1, to the grease zerk, 2. The measurement should be approximately 6mm to 5mm (1/4″ to 3/16″) shorter than the measurement obtained in step 4 of this procedure.

2

1

Figure 2-212

2

1

Figure 2-213

2-147