Hydraulic Connections for Implements and Hydraulic Motors

LX234618-UN-24MAR15

A - Pressure-Free Return Port for Power Beyond (Leak-Off Oil)

B - Pressure-Free Return Port for Power Beyond (Large Oil Quantities)

C - Couplers of SCVs for Extension (I-III)

D - Couplers of SCVs for Retraction (I-III)

E - LS Port for Power Beyond (Pilot Oil)

F - Pressure Port for Power Beyond

G - Coupler for Hydraulic Trailer Brake

IMPORTANT: With implements equipped with a Load Sensing hydraulic system, it is necessary to use the corresponding connections of the booster valve (Power Beyond).

Connecting/operating hydraulic motors

Select the smallest hydraulic motor recommended for this function. This practice will reduce power loss and heating of hydraulic oil, especially if other functions force pump to operate at high pressure.

Operating hydraulic motors

• Ensure all in-line control valves are wide open.
• Ensure in-line orifices are removed.
• Close bleed screws (if equipped).

Hydraulic connections on tractors without additional return port or Power Beyond valve:

• Connect pressure line to connection (D) for retraction of the SCV.
• Connect return line to connection (D) for extension of the SCV.
• Use the special R port to prevent checking and a back flow into the return line if the connections are inadvertently reversed.

Hydraulic connections on tractors with pressure-free R port:

• Connect pressure line to connection (D) for retraction of the SCV.
• Connect return line to R port (B).
• Special return hose tip is not required, but can be used.

Activate hydraulic motor by moving lever forward to click position for retract. Adjust motor speed with SCV flow control. This will ensure pump only operates at pressure required.

Shut off hydraulic motor by moving lever to float. This protects the hydraulic motor from possible damage to the seals due to overpressure from oil returning to the SCV or cavitation when using hydraulic motor R ports.

Hydraulic connections on tractors with Power Beyond valve

Connection via the Power Beyond valve requires a separate flow control valve:

• Connect hydraulic motor pressure line to pressure port (F).
• Connect hydraulic motor return line to return port (B).
• Connect LS pilot line to port (E).

Power Beyond functions through the Power Beyond valve require a pilot signal to regulate pump pressure, therefore an LS pilot oil line is used. Certain equipment may require modification. Special hydraulic couplings can be obtained from your authorized dealer.

Hydraulic connections on hydraulic motors with case drain

Some hydraulic motors have a separate case drain line for internal leakage. Connect it to R port (A) to direct the oil into the sump.