Clean Vacuum System

Dirt or seed treatment builds up in vacuum manifold system and causes low vacuum at planting units. Unclean vacuum manifold system results in loss of seed meter accuracy.

CAUTION: Follow chemical manufacturers label when handling parts coated with seed treatments. Use proper skin, eye, and respiratory protection.

Clean air system at least once a week during operation or more often in severe dusty conditions.

Clean as follows:

1. Vacuum Hoses

   NOTE:

   
   A78724-UN-27AUG13

   
   A83679-UN-12SEP14

   End Caps (12 Row and 16 Row)

   
   A68440-UN-26JUL10

   End Caps (24 Row)

   A - Vacuum Hose

   B - End Caps

   Disconnect vacuum hose (A) at the meter not at the frame.

   Disconnect one vacuum hose (A) on the outer and inner ends of each wing.

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2. Disconnect one hose to the left and to the right of center on the rear center section.

3. Turn on vacuum blower and set hydraulic flow to 75 percent.

4. One at a time, remove vacuum hoses from meters. Inspect and clean all straw and foreign material from both attaching hose ends. Shake hose for a few seconds and replace it on meter.

5. End Caps

   One at a time, remove end caps (B) from frame section.

6. Turn on vacuum blower and set hydraulic flow to 75 percent. Run for 3—5 minutes.

7. Shut vacuum blowers off.

8. Install end cap.

9. Repeat for remaining frame sections.