Setting Vacuum Level

IMPORTANT: For some very small or large seed sizes and shapes, it may be necessary to adjust vacuum levels up or down slightly from settings shown. Always verify vacuum level with field check. The charts provided in this section are intended to be used as a guide and are accurate in most conditions. Some situations may warrant a higher or lower vacuum setting.

Vacuum level is indicated on vacuum gauge or on SEEDSTAR ™ monitor if equipped.

A50223

SEEDSTAR is a trademark of Deere & Company

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VACUUM LEVEL CHART
Crop Vacuum Level
Sugar Beets See Chart
Corn See Chart
Sweet Corn See Chart
Popcorn See Chart
Small, Medium and Large Edible Beans-Cell Type Seed Disk 8 in.a
Small, Medium and Large Edible Beans-Flat-Type Seed Disk See Chart
Cotton 8 in.
Cotton Hilldrop 8 in.
Cotton Using Flat Edible Bean Disk See Chart
Peanuts (Runner, Spanish and Virginia) See Chart
Sorghum 8 in.
High Rate Sorghum 8 in.
Oil Sunflower See Chart
Confectionary Sunflower See Chart
Soybeans 8 in.
Soybeans Using Cotton Disk 5 to 7 in.
Acid-Delinted Cotton 8 in.
aSmall edible beans-For seeds that have 6160 seeds/kg (2800 seeds/lb) or more, set vacuum level at 6 in. Medium edible beans-for garden beans that have 3960 seeds/kg (1800 seeds/lb) or more, set vacuum level at 6 in.

 

Gauge indicator 1 should point to vacuum level listed above, AT PLANTING SPEED.

NOTE: The vacuum level will be slightly lower during tractor and pump start-up.

Set vacuum level as follows:

1. Electro/Hydraulic SCV's: Push SCV lever to forward detent position to start blower. Let oil warm up for 15 minutes.

1 Order Sugar Beet Vacuum Gauge through service parts only.

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Mechanical SCV's: Pull lever back against rubber stop. Let oil warm up for 15 minutes.

2. Fill hoppers with seed.

3. With machine lowered in plant position, drive tractor forward approximately 5 m (15 ft) to fill seed cells.

IMPORTANT: The hydraulic hook-up procedure will determine whether the tractor flow control valve or planter flow control valve will be used to control vacuum level. See Attaching Machine section.

4. Turn hydraulic control knob to adjust oil flow until vacuum-gauge indicator points to vacuum level listed in chart above, AT CHOSEN PLANTING SPEED.

See Attaching Machine section for more information.

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