Four Wheel Drive (Orange) (Optional)IMPORTANT: To prevent damage to the hydrostatic system, do not switch 4-Wheel Drive on or off while driving combine in third gear (road gear) at maximum travel speed. Reduce speed to less than 1/2 of maximum. Turn 4-wheel drive off before going down a steep grade. When driving the combine in conditions which cause high pressures in the hydrostatic system and the combine slows down or stops, move hydrostatic control lever to neutral and shift to a lower gear. It is ok to switch between low (turtle) and high (rabbit) settings on the "GO" while harvesting. Switches (A) control the 2-speed 4-wheel drive system. Press either switch once to engage and once to turn off. A lighted indicator (B) above each switch is on when the drive is engaged. Press the bottom switch (turtle) when more traction is required or the top switch (rabbit) when higher speeds are required. |
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NOTE: For best overall performance it is recommended that the 2-speed 4-wheel drive be left in the low (turtle) speed mode. This will allow the machine to operate at maximum torque capacity. It is recommended to use high (rabbit) speed mode only if in a condition that allows the rear wheels to spin out or if a faster ground speed is required. It is NORMAL for front wheels to lose traction and spin out before the rear wheels in most conditions. In extremely muddy conditions, it may be necessary to apply both brakes momentarily to increase hydrostatic pressure to the 4-wheel drive motors. If rear wheels are spinning excessively shift from 2nd gear to 1st gear. When the drive is engaged, these approximate reductions in ground speed occur:
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CAUTION:
Ground speed will increase when disengaging four-wheel drive and will decrease when engaging four-wheel drive.
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