Unit Down Force Springs
NOTE:
Springs must be mounted inside of parallel arms on all row configurations.
The unit down force springs transfer weight from main frame to planting unit to increase opener penetration and help to minimize bounce in rough soil conditions.
Springs are non-adjustable with 40 kg (90 lb) of down force when parallel arms are in horizontal position. Two sets per row may be used for 80 kg (180 lb) of down force.
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