Single-Disk Fertilizer Openers

Single-disk fertilizer openers will perform in conventional, reduced, no-till and double-crop conditions and are designed specifically for band application of liquid or granular fertilizer. The single blade and gauge wheel configuration minimizes disturbance of the seed zone in these conditions and helps preserve seedbed moisture. The gauge wheel helps in maintaining a consistent fertilizer depth.

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Operating the opener in soils containing many large rocks is not recommended since the opener's upper movement limit stop is incapable of supporting the planter frame weight as the opener rides up over large rocks.

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When openers are set in the minimum setting (A), loosen jam nut (B) and adjust bolt (C) so there are no threads showing beyond jam nut. Retighten jam nut.

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When openers are set in the maximum setting (A), loosen jam nut (B) and adjust bolt (C) so there is 22 mm (7/8 in.) of thread showing beyond jam nut. Retighten jam nut.

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IMPORTANT: Maintain 673 mm (26-1/2 in.) dimension between bottom of planter frame and bottom edge of disk opener.

The recommended placement of fertilizer is 25 to 125 mm (1 to 5 in.) to either side of planting unit double-disk seed opener (A).

To change location of fertilizer opener, loosen opener U-bolt (B), wedge bolts (D) and slide opener to right or left until disk (C) is at desired location.

To attach fertilizer opener to frame tube:

1. Snug U-bolt nuts (E) until the opener is square with and touching the bottom of the fertilizer tube.

2. Tighten wedge bolts (D) to 70 N·m (52 lb-ft) of torque.

3. Tighten U-bolt nuts (E) to 175 N·m (129 lb-ft) of torque.

A-Opener
B-U-Bolt
C-Disk
D-Bolts, Wedge
E-Nuts, U-Bolt

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