Connecting Hydraulic Hoses—Rear of Tractor

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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.

If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result.

Engage Joystick Lock (If Equipped) and SCV Control Lever Lock before attaching or detaching hydraulic hoses to prevent unintentional implement movement and possible personal injury.

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 implement to tractor.

Steam cleaning or using a high pressure washer in the area around the SCV connections and electronics may damage equipment. Any pressure washer exceeding 6895 kPa (69 bar) (1000 psi) should be kept a minimum of 200 mm (8 in) away from connections.

See Attaching Implement and Control System in TouchSet™ Depth Control Section of this Operator’s Manual.

1. Lock out SCV controls:

   • 
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     Joystick—Press Joystick Lock (A).

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   • CommandARM™—Press SCV Control Lever Lock (B).
   
   

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2. Clean dust covers. Rotate dust covers up to expose couplers.

   Be sure to correctly connect remote hydraulic hoses to couplers. If hose connections are reversed, machine will not respond to system controls as expected.

   Rear SCV

   Extend=Left Port

   Retract=Right Port

3. 
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   Remote cylinder couplers are designated I through VIII (E) with I being the bottom coupler.

   Check if symbols on coupler identification plate (C) or (D), indicating cylinder movement, match cylinder travel direction.

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4. When using SCV with single-acting cylinders, plug hose into extend side of coupler (F). When connecting double-acting cylinders, extend side will be left side and retract is right side (G).

5. Push hose(s) firmly into coupler(s).

SCVs are color coded for easier identification. Hose identification kits are available from your John Deere dealer.

SCV Numbers And Corresponding Colors
SCV Number	Color
SCV I	Green
SCV II	Blue
SCV III	Brown
SCV IV	Black
SCV V	Violet
SCV VI	Gray
SCV VII	White
SCV VIII	Light Green