Vacuum Meter

False monitor reading.

Dirty seed tube sensors.

Clean sensors. See CLEANING SEED SENSOR in Service As Required section.

Dust and Dirt being drawn up seed tube.

Clean vacuum meter vent window. Pro- Series meters only

No seed being planted.

Row unit hoppers empty.

See CCS PRODUCT DELIVERY in this section.

No vacuum.

See Low Vacuum under VACUUM METER in Troubleshooting section.

Seed tubes plugged or damaged.

Inspect seed tubes. Ensure that seed tubes are hooked properly in unit shank. Replace if damaged.

Clean off mud with cleaning brush.

Meter drive not engaged.

Engage meter drive.

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Poor seed spacing.

Seed disk vacuum holes plugged.

Clean seed disks.

Install knockout wheel assembly if using a Flat Seed Disk.

Farmer-applied seed treatment causes buildup, seeds stick.

Follow recommended talc usage and application procedure.

Clean meter and disks.

Worn meter brushes.

Replace brushes.

Low vacuum.

See Low Vacuum under VACUUM METER in Troubleshooting section.

Rusty planting unit or seed drive chains.

Lubricate chains.

Dirt buildup on MAXEMERGE™ XP herbicide or insecticide drive.

Clean drive.

Worn meter seals.

Replace seals.

Seed disk hubs misadjusted.

Readjust hubs.

Incorrect vacuum for the seed being planted.

Adjust vacuum level to recommended setting.

Faulty vacuum gauge.

Check air line to gauge. Clean if plugged. Replace if cut.

Worn seed disks.

Replace disks.

Seed tubes improperly installed or worn.

Reinstall or replace seed tubes. Ensure that seed tube hook is properly positioned in unit shank.

Mud inside seed tubes.

Clean off mud with cleaning brush.

Worn seed tube guard.

Replace guard.

Treated seed sticking in cell.

Clean disks.

Increase application rate of John Deere Talc Lubricant.

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Seed disks have not been sprayed with Graphite Lubricant.

Spray seed disks with Spray on Graphite Lubricant TY25797.

Excessive ground speed.

Plant at speed recommended in planting rate chart.

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Low seed population.

If low population displays on monitor and field counts are accurate, sensors are dirty.

Clean seed tubes and sensors.

Seed disk vacuum holes plugged.

Clean seed disks.

Flat-Type Disk: Install knockout wheel assembly or replace worn knockout wheel assembly.

"Dirty" seed plugging vacuum holes.

Use clean seed.

Flat-Type Disk: Install knockout wheel assembly or replace worn knockout wheel assembly.

Seed disk wiper missing.

Replace wiper.

Low seed level in CCS tank.

Add seed.

Low seed level in meter.

See NO SEED IN METER in CCS Product Delivery Troubleshooting section.

"Treated" seed sticking in cells.

Run CCS fan 10 minutes before planting (to warm air).

Inspect planting unit seed meter disks; clean if buildup is present.

Add John Deere Talc Lubricant to CCS tanks.

Farmer-applied seed treatment causes buildup, seeds stick.

Discontinue use of treatments or increase use of talc.

Rusty MAXEMERGE™ XP planting unit chains.

Lubricate chains.

Low vacuum.

Increase vacuum level.

See Low Vacuum under VACUUM METER in Troubleshooting section.

Foreign material (chaff) built up in vacuum dome.

Inspect dome and clean if necessary.

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Worn meter seals.

Replace seals.

Worn seed disks.

Replace seed disks.

Seed "bridging" in hopper.

Increase rate of talc used.

Clean vacuum meter and hopper.

Seed "bridging" in meter.

Increase rate of talc used.

Clean vacuum meter and hopper.

Inadequate seed delivery.

Increase CCS tank pressure.

Plugged inlet or discharge elbows.

Clean elbows.

Seed size not compatible with seed disks.

Use correct seed disks.

Excessive drive slippage.

Reduce unit downforce.

Check mechanical seed transmission air bag pressure.

Check drives for binding or misalignment.

Readjust seed transmission.

Planting too fast for rough field conditions.

Plant at speed recommended in planting rate chart.

Increase vacuum.

Increase unit downforce.

Vacuum level too low.

Increase vacuum level.

Meter brush improperly installed or worn.

Install brush properly or replace.

Using incorrect transmission sprocket combination.

Use sprocket combination recommended in planting rate chart or adjust upward due to excess drive slippage.

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Incorrect drive tire or contact tire pressure.

Inflate to proper pressure. See CHECKING TIRE INFLATION in Preparing Machine section.

Double eliminator set incorrectly.

See USING DOUBLE ELIMINATOR in your Rate Charts and Settings Operator's Manual.

Vacuum manifold orifices not installed.

Install orifices in correct locations. See VACUUM MANIFOLD ORIFICE PLACEMENT in Service-As Required section.

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High seed population.

High vacuum.

Adjust vacuum setting.

Vacuum manifold orifices not installed.

See VACUUM MANIFOLD TUBE ORIFICE PLACEMENT in Service-As Required section.

Faulty vacuum gauge.

Check air line to gauge. Clean if plugged. Replace if cut.

Worn seed disks.

Replace seed disks.

Seed size not compatible with seed disks.

Use correct seed disks.

Planting too slow.

Plant at speed recommended in planting rate charts.

Meter brush improperly installed.

Install brush properly.

Seed disk hubs loose.

Adjust hubs. See ADJUST METER HUB in Rate Charts and Settings Operator's Manual.

Using incorrect transmission sprocket combination.

Use sprocket combination recommended in planting rate charts or adjust downward due to low drive wheel slippage.

PRO-SERIES™ XP mini hopper screens plugged, meter overfilled.

Clean mini hopper screens.

MAXEMERGE™ XP discharge elbow holes plugged.

Clean elbows.

Incorrect drive tire or contact tire pressure.

Inflate to proper pressure. See CHECKING TIRE INFLATION in Preparing Machine section.

CCS tanks running empty.

Fill or redistribute seed in CCS tanks.

Double eliminator set incorrectly.

See USING DOUBLE ELIMINATOR in your Rate Charts and Settings Operator's Manual.

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Seed sensor tubes plugging.

Machine rolling backward when lowering.

Lower machine while moving forward.

Mud inside seed tubes.

Clean off mud with cleaning brush.

Turning tractor steering wheel when machine is down and stationary. (Four Wheel Drive or Track tractors only.)

Avoid turning tractor when machine is down and stationary.

Inconsistent seed depth.

Planting in rough seed bed.

Increase row unit down force.

Mud building up on gauge wheel tires.

Remove mud from gauge wheel tires. Avoid muddy planting conditions.

Excessive row unit bounce.

Reduce ground speed.

Increase row unit down force.

Seed tubes partially plugged or improperly installed.

Inspect seed tubes. Ensure that seed tubes are hooked properly in unit shank.

Clean off mud with cleaning brush.

Too many skips.

Low vacuum setting.

Increase vacuum.

Holes in vacuum disk plugged with debris.

Remove debris. Install knockout wheel if using flat disk.

Planting too fast.

Reduce planting speed.

Low seed level in hopper.

Increase CCS tank pressure.

Premature blower motor seal failure.

Incorrect hydraulic connections.

Reconnect hydraulic hoses.

SCV control not being moved to FLOAT position to stop hydraulic motors.

Move SCV control to FLOAT position when stopping hydraulic motors.

High case drain pressure.

Check for 25 psi or less back pressure at motor.

Ensure case drain line is connected and hose not kinked.

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Low vacuum.

Orifices installed incorrectly in manifold tube.

See VACUUM MANIFOLD TUBE ORIFICE PLACEMENT in Service-As Required section.

Incorrect hydraulic connections.

Reconnect hoses.

Planting unit vacuum hoses not connected to meter.

Connect vacuum hoses to meter.

Flow control valve misadjusted.

Adjust control valve knob.

Air manifold system clogged with dust.

Clean air manifold system.

Manifold hoses kinked or pinched.

Reposition hoses.

Blower guard clogged with dust or seed treatments.

Clean blower guard.

Meter housing retaining strap not engaged.

Attach housing retaining strap to chamber.

Meter seals worn or flipped.

Inspect seals. Reposition or replace.

Air manifold system assembled without O-rings.

Add O-rings.

Vacuum dome not closed properly.

Make sure vacuum dome closes properly.

Foreign material (chaff) built up in vacuum dome.

Inspect dome and clean if necessary.

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Erratic vacuum.

Air manifold system clogged with dust.

Clean air manifold system.

"Flow checking" at SCV prevents return oil flow.

Install Auxiliary Return Line Coupler Kit (BA25379).

Control valve failed.

Replace control valve.

Tractor oil level low.

Add oil.

Tractor not stabilizing flow (when controlled with tractor SCV).

See your John Deere dealer.

Vacuum gauge does not zero.

Not adjusted.

Zero adjustment. See ZEROING VACUUM GAUGE in your Rate Charts and Settings Operator's Manual.

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