Use Deluxe Rear SCV to Operate Hydraulic Motor

IMPORTANT: If equipped with Deluxe rear selective control valve (SCV), use SCV I (A), with adjustable (internal) flow control valve (B) for hydraulic motor operations. Never regulate SCV I oil flow with an external flow control valve. Having two flow control valves in the same hydraulic circuit can overheat oil causing component malfunctions and damage.

DO NOT use Deluxe rear SCV for any low flow, high-pressure applications such as planter motor, active downforce circuits. PTO driven hydraulic motor is recommended for low flow, high-pressure applications.

NOTE: Use external flow control valve to regulate oil flow when operating a hydraulic motor with any standard valve or Deluxe valve sections II or III, without internal flow control.

Recommendations to avoid hydraulic motor damage

NOTE: Refer to operator's manual of implement to understand motor features.

IMPORTANT: If implement motor is not equipped with return coupler, do not use "neutral" lever position to stop hydraulic motor; use "float". Neutral standby pressure may cause back-pressure damage to hydraulic motor or hoses.

  • Use hydraulic motor case drain connection (if equipped) for implements having motor with case drain line. Refer to Use Hydraulic Motor Case Drain Connection-If Equipped, in this section.
  • Use hydraulic motor return coupler (if equipped) for implements having single directional hydraulic motor.
  • Use hydraulic motor return coupler (if equipped) for implements having hydraulic motor with low-pressure shaft seal.
    PULV000103

    SCV


    A-SCV I
    B-Adjustable Flow Control Valve

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  • Use hydraulic motor return coupler (if equipped) for implements having hydraulic motor with internal case drain.

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    Hydraulic Motor Hose Connections and Control Lever Operations

    IMPORTANT: Use only SCV I of rear SCV for "continuous" (motor) applications. SCV I of rear SCV is for high flow and lower pressure application (motor).

    DO NOT return hydraulic motor directly to sump via fast return-to-sump connection, except intermittent high-pressure applications, such as post pounder.

        1.

        Shut off engine.

        2.

        Move SCV control lever (A) full forward, into "float" detent.

        NOTE: To prevent SCV levers from moving unintentionally, use SCV lockout lever (D).

        3.

        Connect hydraulic motor hoses to SCV I couplers that correspond to selected control lever.

        4.

        Deluxe Valve: Set control lever detent for continuous "motor" operation. (See Operate Rear SCV Control Levers and Set Detents-Deluxe Valves, in this section.)

        5.

        Start engine.

        6.

        To activate hydraulic motor, move control lever out of "float" detent.

        IMPORTANT: Do not use "neutral" lever position to stop hydraulic motor; use "float". Neutral standby pressure may cause back-pressure damage to hydraulic motor or hoses.

        7.

        To stop hydraulic motor, move control lever full forward into "float" detent.

        8.

        Shut off engine and disconnect hoses from couplers.

    PULV004953

    SCV levers


    A-SCV I control lever
    B-SCV II control lever-If Equipped
    C-SCV III control lever-If Equipped
    D-SCV lockout lever

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