3.12.2 FDA drive control

If it is necessary to lock the rear wheel for short time, irrespective of any conditions, including turning, set the switch 2 into position “Positive lock” and hold it down in this position. As the rear axle DL is on, the annunciator 3 lights up. Releasing the switch unlocks the DL (“Lock off”), the annunciator 3 goes out. ATTENTION: TRACTOR TRAVEL SPEED WITH DL LOCK ON SHALL NOT EXCEED 13 KM/H! IT IS FORBIDDEN TO RUN THE TRACTOR WITH DL LOCK CONSTANTLY ENGAGED WHEN MOVING ON ROADS WITH HARD SURFACE!

3.12.2 FDA drive control

The FDA drive control system consists of the following elements: - a button switch 2 (figure 3.12.2) of FDA control and FDA drive “on” annunciator 3, located on the control panel 1; - a sensor of guide wheel turning angle 7, mounted on the FDA at its right; - two sensors of service brakes “on” state, located in the cab over the brake pedals; - a sensor 6 of FDA drive automatic engagement; - a valve group 5, located on the GB cover to its right, connecting cables.

1 – control panel; 2 – FDA drive control switch; 3 – FDA drive “on” annunciator; 4 –fuse block; 5 – FDA drive control valve group; 6 – sensor of FDA drive automatic engagement; 7 – sensor of guide wheel turning angle; 8 – bracket for attaching sensor of guide wheel turning angle; 9 – bracket activating/deactivating sensor of guide wheels turning angle.

Figure 3.12.2 – FDA drive control