Yetter 6300 Coulter Cart - Manual (Page 31)

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PARTS IDENTIFICATION
DOWN PRESSURE REGULATING VALVE KIT
The down-pressure regulating valve kit replaces the two “T” fittings, in the middle of the cart, joining
together hoses from the toolbar cylinders.
CAUTION: DO NOT ride on machine to adjust down-pressure or you could
fall off and be run over resulting in severe injury or death.
NOTE: This down-pressure regulating valve kit is for use with tractors with closed center hydraulics only.
NOTE: MUST have gauge wheels on toolbar.
NOTE: This hydraulic system does not compensate for conditions varying from soft to hard as you travel
through the field.
When adjusting active hydraulic down-pressure it is important to remember the following:
- Seed depth is largely controlled by coulter depth when using a coulter cart.
- The active hydraulic down-pressure system keeps the toolbar gauge wheels in contact with the soil
surface as the ground contour changes.
- The amount of down-pressure required depends upon soil hardness, moisture and residue cover.
- The recommended initial setting is between 400 and 600 psi.
IMPORTANT: Excessive down-pressure can increase wear, increase draft loads, decrease effective seed
depth and reduce gauge wheel bearing life. Use only as much pressure as necessary to achieve
consistent operating depth.