Air Control Valve Cleanout Procedure

Some material may collect in the valve assemblies on each end of the slide during normal operation of the cart. Use of unclean seed, seed treatments, and finer fertilizers may increase the rate material collects in these assemblies. This material will not feed into the primaries during normal operation, but during cycling of the slide, could dribble into the primaries and be blown into the seed trench.

1. Turn off fan.

2. With all bystanders away from the valve area, turn on the cart fan.

NOTE: Delay a few seconds when cycling the slide between top-shoot and bottom-shoot positions.

3. Cycle the slide back and forth several times to clean out the valve assemblies.

AG,OUO6023,1077 -19-21JUL00-1/2


4. If necessary, remove air control housings (A) for more complete cleanout. See REMOVE SLIDE ASSEMBLY in this section.

IMPORTANT: Position the slide midway between top-shoot and bottom-shoot positions before reassembling the valve assembly. Ensure quad ring seals fit in the provided grooves of the top and bottom portions of the valve assemblies. Do not over tighten the hardware when reinstalling the bottom portion of the valve assembly.

IMPORTANT: Excessive torque on air control housing hardware can result in damage to housings and/or binding of the sides.

5. Install air control housing and tighten hardware to specification.

Specification

Air Control Housing Hardware -Torque 5 N·m (4 lb-ft)

A43724


A-Air Control Housing

AG,OUO6023,1077 -19-21JUL00-2/2