Checking Depth Control Wheel Operation—Drawn

1. CAUTION: To prevent serious injury or death to you or others:

   • Make sure air has been properly bled from hydraulic system.
   • Keep all persons away from machine when raising and lowering.
   
   

   
   N48107-UN-17DEC01

   John Deere 8000 and 9000 Series Tractors

   A - SCV I Lever

   Place tractor transmission in PARK and/or set brakes, start engine and pull back on SCV I lever (A) to raise machine.

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2. Move lever back and forth several times while observing operation of machine. Machine should raise when lever is pulled back and lower when lever is pushed forward. If action is reversed, reverse hose connections.

   If machine does not raise and lower smoothly, air may be trapped in cylinders or hoses. (See INSTALLING AND BLEEDING CYLINDERS in Service section.) If after bleeding, machine still does not operate properly, see your John Deere dealer.

3. After attaching and cycling cylinders, check tractor hydraulic oil reservoir. Add oil if necessary.