Operate Third Function Selective Control Valve

To avoid injury from escaping fluid under pressure, stop engine and relieve the pressure in the system before disconnecting or connecting hydraulic or other lines. Tighten all connections before applying pressure.

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Escaping fluid under pressure can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure. Search for leaks with a piece of cardboard. Protect hands and body from high-pressure fluids.

If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene can result. Doctors unfamiliar with this type of injury should reference a knowledgeable medical source. Such information is available from Deere & Company Medical Department in Moline, Illinois, U.S.A.

Avoid damage! To prevent contamination of female quick couplers, install color-coded hose ends on the couplers when not in used.

The third function (SCV) outlet may be operated in a momentary condition to operate attachments such as extending or retracting a hydraulic cylinder. The attachment receives full hydraulic flow in direct response to the use of the control switch.

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    3rd Function SCV

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    Mid Outlet

    A - Top of the 3rd SCV Control Switch

    B - Cylinder Retract Outlet

    C - Cylinder Extend Outlet

    D - Bottom of the 3rd SCV Control Switch

    Cylinder Extend—Depress the bottom of the 3rd SCV control switch (D) to allow flow from the circuit out through the extend outlet (C) and return to the machine through the retract outlet (B).
  2. Cylinder Retract—Depress the top of the 3rd SCV control switch (A) to allow flow from the circuit out through the retract outlet (B) and return to the machine through the extend outlet (C).

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