Adjust Opener Down Force—Tractors With Closed Center Hydraulic Systems

  1. IMPORTANT: Adjust opener down-pressure, as required, to keep gauge wheels in firm contact with soil, but DO NOT use more down-pressure than necessary or damage to machine could result.

    NOTE: Active hydraulic down force system requires a tractor with closed-center or pressure/flow compensated hydraulics.

    Refer to UNDERSTANDING ACTIVE HYDRAULIC DOWN-PRESSURE SYSTEM in this section and determine initial pressure setting.

  2. N48139
    N48139-UN-18DEC01

    A43339A
    A43339A-UN-28FEB05

    A37910
    A37910-19-06SEP95

    A - Knob

    B - Pressure Gauge

    C - Wheel

    D - Lever

    Push lever (D) forward until the detent click is felt. Time detent must be set to CONTINUOUS.


  3. While watching pressure gauge (B), rotate knob (A) to adjust down-pressure to desired setting. Once set, lock knob in position with wheel (C). If gauge needle does not move, see Troubleshooting section.

  4. Make a trial pass in the field.

  5. If opener down force is not satisfactory, increase hydraulic pressure for more down-force. If gauge wheel pressure is adequate but depth of penetration is not, see OPENER COMPONENTS AND ADJUSTMENTS and ADJUSTING GAUGE WHEEL AND SEEDING DEPTH in Preparing the Machine section.

RG53986,00001A0-19-20110602