Adjusting Down Force

The opener down force is adjustable to provide effective penetration for varying field conditions. Use the following criteria when determining the proper down force setting for the opener:

1. Use no more down force than necessary for the conditions.

2. Observe how deeply the gauge wheel is running:

1. If the wheel is sinking deeply into the soil, use the minimum spring pressure setting.
2. If the disk is not penetrating sufficiently for the gauge wheel to consistently contact the soil surface, use the maximum spring pressure setting.

NOTE: Excessive opener down force may cause the planter frame to run higher than desirable for may substantially reduce planter drive wheel traction. Additional frame ballast or reduced spring force may be necessary to maintain adequate planter drive wheel traction.

To adjust down force, proceed as follows:

(Not Illustrated) Raise planter and install service locks.

Remove spring locking pin from pin (A) and remove pin from spring housing.

Position pin through internal strap and hole (C) for maximum spring pressure. Position pin through strap and hole (B) for minimum spring pressure.

Attach with spring locking pin.

7200OM,4,6WM,R7 -19-12MAY93-1/2

After down force adjustment has been made, check to make sure dimension (A) is not less than 635 mm (25 in.). If necessary, loosen jam nut (B) and turn spring bolt clockwise to raise opener or counterclockwise to lower opener. Retighten jam nut.

NOTE: With dry fertilizer opener, make sure dimension (A) is not greater than 711 mm (28 in.) or fertilizer tube may plug with soil as opener engages the ground.

7200OM,4,6WM,R7 -19-12MAY93-2/2