Adjusting and Checking CCS Vacuum and Pressure Level—Planters with up to 18 Rows

CQ227531
CQ227531-UN-21FEB05

IMPORTANT: The machine must be ready to start planting and filled up with seeds.

  1. Connect hoses to tractor's SCV.

    NOTE: See Coupling Planter.

  2. Restrict oil passage in SCV.

  3. Adjust knob (A) to position of totally open that will only engage CCS.

  4. Start up engine and set tractor to working speed (the speed used for planting).

  5. CQ225921
    CQ225921-UN-24FEB05

    CQ235740
    CQ235740-UN-24FEB05

    Engage CCS system via key (A) on corner post.


  6. Check that the tractor selective control valve is in the constant flow position (B). Shift to this position if it is not already there.

  7. Actuate tractor level to release oil pressure in continuous flow.

  8. CAUTION: DO NOT surpass the pressure of 30 inches of water for the CCS tank. Any pressure greater than this may damage the hydraulic motor.

    NOTE: Check CCS pressure value indicated for each crop in Tank Pressure Table.

    CQ235690
    CQ235690-UN-24FEB05

    CQ227510
    CQ227510-UN-29OCT04

    Turn handle (A) on SCV until initial CCS pressure of 20 inches of water is reached.


  9. CQ227531
    CQ227531-UN-21FEB05

    Turn knob (A) until reaching vacuum turbine speed.

    NOTE: Pressure gauge does not show correct vacuum value because seed disk cells are open.


  10. Check if there are seeds in seed meter boxes.

  11. Plant for some meters or turn disks until seed disks are completely filled with seeds.

    NOTE: Check double eliminator setting. Consult Section Preparing Seed Meter, Using Double Eliminator, for more information.

  12. Turn know (A) and carry out fine tuning of vacuum level.

    NOTE: Check the vacuum value indicated for each crop type in Seed Rate - Vacuum Meter Section.

  13. Lock knob (A) after reaching recommended pressure.

  14. CQ235690
    CQ235690-UN-24FEB05

    CQ290246
    CQ290246-UN-31MAR14

    Turn knob (A) until the required vacuum level is achieved, paying close attention to the position of the needle on the gauge.

    NOTE: If necessary repeat procedure to reach vacuum level in planter valve and CCS at tractor SCV.

DV15698,0000067-19-20140401