Preparing Hydraulic System-John Deere 8000/9000 and 8020/9020 Series Tractors

1. Check hydraulic oil level. Fill if necessary.

2. WING FOLD/UNFOLD-Press SCV II selector button (A) and turn flow control knob (B) to fast (rabbit) position.

3. Turn time detent knob (C) until display reads "19" seconds. If this is not enough time to completely fold/unfold wings, time detent button can be set to constant . If set to constant , tractor hydraulic pump will continue to operate after fold/unfold cylinders have stopped moving. This is normal and not harmful. However, shutting off pump by moving SCV lever to any position after lever has returned to NEUTRAL is recommended.

NOTE: Use constant for machines equipped with hydraulic control.

N60414


A-SCV II Selector Button
B-Flow Control Knob
C-Time Detent Knob

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4. DEPTH CONTROL-Press SCV I selector button (A) and turn flow control knob (B) to rabbit position.

5. Turn time detent knob (C) until display reads "5" seconds. This can be increased or decreased depending on actual time required to lift and lower machine.

6. HYDRAULIC GANG CONTROL-Press SCV III selector button (D) and turn flow control knob (B) to rabbit position.

7. Turn time detent knob (C) until display reads from "5" seconds. This can be increased or decreased depending on actual time required to raise and lower gangs.


A-SCV I Selector Button
B-Flow Control Knob
C-Time Detent Knob
D-SCV III Selector Button

N48104
N48137

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