Clean Vacuum Manifold System

Dirt or seed treatment can build up in vacuum manifold system and cause low vacuum at planting units. This could result 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 manifold system at least once a week during operation or more often in severe dusty conditions.

Clean as follows:

1. NOTE:

   
   A54105-UN-19MAR04

   A - Vacuum Hose

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

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

---




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. Remove end caps from manifold tubes one at a time, then reinstall.

6. Let vacuum blowers run for 10 minutes.

7. Shut vacuum blowers off and replace hose on row units.