Selective Control Valves - Connect or Disconnect Hydraulic Hoses at Front Hitch (If Equipped)

LX266990-UN-10OCT16

CAUTION: Escaping high-pressure fluid can penetrate the skin causing serious injury. Avoid the hazard by relieving pressure before disconnecting the system lines.

If an accident occurs, consult a doctor immediately. Any fluid that penetrates the skin must be surgically removed within a few hours or gangrene can result.

CAUTION: Avoid personal injury. Before implements are attached, hydraulic hoses are connected or disconnected, and to avoid unintentional implement movement, observe the following:

• Shut off the engine.

• Set selective control valve controls to neutral position and lock them.

IMPORTANT: Hydraulic hoses can fail due to physical damage, kinks, age, and exposure. Check hoses regularly.

Any dirt, dust, or other foreign material can damage hydraulic system. Thoroughly clean hydraulic hoses and SCVs before connecting an implement to the tractor.

IMPORTANT: Steam cleaning or using a high pressure washer in the area around the SCV connections and electronics may damage equipment. In the case of high-pressure washers with a pressure of more than 6895 kPa (69 bar) (1000 psi), a min. distance of 200 mm (8 in.) to the connections must be maintained.

NOTE: Hydraulic connections at front of tractor and/or under the right step (if equipped) are operated by the multi-function lever.

Connecting Hydraulic Hoses

1. Switch off the engine and engage the park lock.

2. Lock out SCV controls:

   • Use levers (A) to lock SCV control levers.

     
     LX315055-UN-04DEC17

     A - SCV Locking Lever

     B - Locking Ring, Mechanical Multi-Function Lever

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   • Use locking ring (B) to lock the multi-function lever (mechanical)¹.
   
   

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3. Lock shut-off valve (D) on front hitch.

   
   LX234606-UN-24MAR15

   C - SCV II Couplers on Front Hitch

   D - Shut-Off Valve on Front Hitch

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4. Clean dust caps/plugs.

5. IMPORTANT: Be sure to connect hydraulic hoses of implements to couplers correctly. If hose connections are reversed, machine will not respond to system controls as expected.

   Assignment of couplers on front hitch

   Extend = left port

   Retract = right port

   Open dust caps/plugs to expose ports.

6. Push hoses firmly into couplers.

Disconnecting hydraulic hoses

CAUTION: Avoid personal injury. Before detaching implements, lower the implement to the ground and lock out SCV controls to prevent implement movement.

1. Engage park lock.

2. Lower implement to ground.

3. Move SCVs to float position for a few seconds while engine is running.

4. Shut off engine.

5. Lock out SCV controls:

   • Use levers (A) to lock SCV control levers.
   • Use locking ring (B) to lock the multi-function lever (mechanical)².
   
   

6. Lock shut-off valve (D) on front hitch.

7. IMPORTANT: Forcing or jerking SCV hoses when disconnecting can damage hose ends and SCV couplers. If hoses cannot be removed easily, relieve pressure in hydraulic system by putting the SCV in float position for a few seconds with engine running.

   Pull hoses straight out from couplers.

8. Close dust caps to cover couplers.