Hydraulic Connections Recommendations (Single Blower System)

A82587-UN-15MAY14

Float

A82662-UN-27MAY14

Extend

A82661-UN-27MAY14

Retract

A92503-UN-21SEP16

Model Year 2014 9R Tractor with High Flow Hydraulic Shown

9R Tractors (—Model Year 2013)	9R Tractors (Model Year 2014 and Up)
High flow hydraulics uses two hydraulic pumps providing up to 295 L/min (78 gal/min) of hydraulic flow. SCVs I, II, and III are powered by a pump providing 182 L/min (48 gal/min) of hydraulic flow. SCVs IV and V are powered by a pump providing 114 L/min (30 gal/min) of hydraulic flow. Functions that require high flow with low pressure, like the blower motors, are connected to SCVs III and IV. All functions requiring high pressure with low flow, such as hydraulic cylinders are connected to SCVs I and II. Connecting in this way helps the system run cooler by not producing excessive heat.	High flow hydraulics uses two hydraulic pumps providing up to 435 L/min (115 gal/min) of hydraulic flow. SCVs I, II, and III are powered by a pump providing 218 L/min (57.5 gal/min) of hydraulic flow. SCVs IV and V are powered by a pump providing 218 L/min (57.5 gal/min) of hydraulic flow. Functions that require high flow with low pressure, like the blower motors, are connected to SCVs III and IV. All functions requiring high pressure with low flow, such as hydraulic cylinders are connected to SCVs I and II. Connecting in this way helps the system run cooler by not producing excessive heat.

If machine hydraulic hoses are not equipped with circuit identification tags, a service kit containing all tags is available. Tag service kit AA78772 is available from your John Deere dealer.

Extend and Retract symbols are on SCV cover and hose connections.

Refer to the tractor operator's manual for specific hydraulic operational details.

Avoid hydraulic hose failure due to physical damage, kinks, age, and exposure. Inspect hoses regularly. Replace damaged hoses.

Avoid motor seal damage. Connect the case drain hose before any other hose. Connect the blower return hoses to a tractor “extend” SCV. Move tractor SCV lever to float (not neutral) position to shut off the blower.

Hydraulic Connection Identification
SCV Port	SCV Circuit	SCV Color	SCV Symbol	Implement Function			SCV Flow1	SCV Time1
(A)	Case Drain	Yellow	“D”	Non-Pressurized Hydraulic Return—All Functions2			N/A3	N/A3
(B)	Brake	N/A3	N/A3	Not Used for this Application			N/A3	N/A3
(C)	I	Green	Extend	Seeding Tool Rockshaft Opener Control			10 Maximum	Continuous “C”
(D)			Retract
(E)	II	Blue	Extend	Seeding Tool Wing Fold			Start at 5.	10 seconds or as required.
(F)			Retract	Seeding Tool Wing Unfold
G	III	Brown	Extend	Not Used for this Application			N/A3	N/A3
H			Retract
			Float
(I)	IV	Black	Extend	Blower/Auger Hydraulic Return4			10 Maximum Blower speed controlled by hydraulic flow control of tractor.	Continuous “C” Blower speed controlled by hydraulic flow control of tractor.
(J)			Retract	Blower/Auger Engage
			Float	Blower/Auger Disengage
(K)	V	Purple	Extend	Not Used for this Application (Model Year 2014 and Up)			N/A3	N/A3
(L)			Retract

Power Beyond Connection Identification
SCV Port	SCV Circuit	SCV Color	SCV Symbol	(P) 9R Tractors with High Flow Hydraulics (—Model Year 2013)5	(Q) 9R Tractors with High Flow Hydraulics (Model year 2014 and Up)5	Implement Function	SCV Flow1	SCV Time1
(M)	Pressure	Red	“P”	Bottom Pump 182 L/min (48 gal/min)	Bottom Pump 218 L/min (57.5 gal/min)	Cart Hydraulic Drives and Section Command	N/A3	N/A3
(N)	Return	Black	“R”
(O)	Load Sense	Orange	“LS”