Adjusting High Speed Fertilizer Openers Down-Pressure—Tractors With Electro/Hydraulic Closed Center Systems

1. IMPORTANT: Adjust fertilizer opener down-pressure, as required, to keep openers in firm contact with soil, but DO NOT use more down-pressure than necessary or excessive wear and damage to machine could result.

   A tractor with an open-center hydraulic system MUST BE equipped with Open Center Hydraulic Kit with Change Valve. (See your John Deere dealer for installation.)

   (See UNDERSTANDING ACTIVE HYDRAULIC FERTILIZER OPENER DOWN-PRESSURE SYSTEM in this section to determine initial pressure setting.)

2. 
   N88252-UN-06MAY10

   A - SCV I Selector Button

   B - Time Detent Knob

   Press SCV I selector button (A). Time detent knob (B) must be set to “continuous”.

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3. IMPORTANT: 11 and 15-Row—Left-hand valve controls main frame and right hand valve controls wings. To make machine operate correctly, VERIFY BOTH PRESSURE GAUGES ARE SET AT THE SAME PRESSURE.

   23-Row—Left-hand pressure valve controls left machine side and right-hand pressure valve controls right machine side. To make machine operate correctly, VERIFY BOTH PRESSURE GAUGES ARE SET AT THE SAME PRESSURE.

   
   N89617-UN-07OCT10

   Knob and Collar—11 and 15-Row

   
   N88247-UN-06MAY10

   Knob and Collar—23-Row

   A - Pressure Gauge

   B - Knob

   C - Collar

   While watching pressure gauge (A), adjust down-pressure to desired setting by rotating knob (B). Once set, lock knob in position with collar (C).

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4. Make a trial pass in field.

5. If High Speed Fertilizer Openers penetration is not satisfactory, adjust hydraulic pressure as required.