Operating the Disk

General Operating Guidelines

□ Use the recommended size tractor.

□ Always raise the disk out of the ground before turning. If pulling a harrow, roller or other toolbar behind the disk, raise the disk just clear of the ground before turning.

□ In the field do not backup with the disk in the fully raised position. Raise the disk just clear of the ground to prevent the disk from overbalancing to the rear which may damage the control arms.

□ Speed, depth and soil type and condition all determine how level the ground left behind the disk. To minimize ridging or gouging, limit the disking speed to 46 mph.

□ On tractors equipped with a swinging drawbar, allow the drawbar some movement when working in level or gently rolling fields. In severely rocky conditions, heavy clay or tree stumps allow more swing in the drawbar. In all other conditions, lock the drawbar in the center position.

□ Pulling a drag or heavy harrow behind the disk can reduce side draft and aid in levelling the soil.

Adjust The Leveling Control Arm

The leveling control arm is used to transfer pressure to the rear of the disk in order to increase penetration of the rear disk blades. Pressure is increased by tightening the adjustment nut against the spring. This adjustment is easiest to make when the disk is in the raised transport position and there is no pressure on the nut. Once the desired setting is made, lock the first nut with the second nut on the eyebolt. When the disk is lowered to the operating position, take care the spring is never fully compressed. Increasing pressure against the spring will put more down pressure on the rear blades. Carrying the disk slightly with the wheels while operating will allow the disk to pivot on the wheels and result in more even blade penetration front to rear. If the disk is operated with the wheels fully raised, little or no pressure should be placed on the spring. If disking through a sharp depression or ditch, raise the disk slightly to prevent excessive pressure on the spring and levelling arm.