Vacuum Meter

False monitor reading.

Dirty seed tube sensors.

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

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

Clean off mud with cleaning brush.

Drive not engaged.

Engage flex-drive.

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Poor seed spacing.

Seed disk vacuum holes plugged.

Clean seed disks.

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.

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 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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Low seed population.

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

Clean seed tubes and sensors.

Seed disk vacuum holes plugged.

Clean seed disks.

Flat/Type Disk: Install seed knockout assembly or replace worn seed knockout assembly.

"Dirty" seed plugging vacuum holes.

Use clean seed.

Flat/Type Disk: Install seed knockout assembly or replace worn seed knockout 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 prior to 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.

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.

Worn meter seals.

Replace seals.

Worn seed disks.

Replace seed disks.

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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.

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.

Incorrect drive tire or contact tire pressure.

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

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Vacuum manifold orifices not installed.

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

Double eliminator set incorrectly.

See USING DOUBLE ELIMINATOR in Preparing Vacuum Meter section.

High seed population.

High vacuum.

Adjust vacuum setting.

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.

Tighten hubs.

Using incorrect transmission sprocket combination.

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

Mini hopper screens plugged, meter overfilled.

Clean mini hopper screens.

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 Preparing Vacuum Meter section.

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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.

Use downforce spring attachment on planting units.

Seed tubes partially plugged or improperly installed.

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

Clean off mud with cleaning brush.

Too many skips.

Low vacuum setting.

Increase vacuum.

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.

High case drain pressure.

Check for 25 psi or less back pressure at motor.

Ensure case drain line is connected and hose not kinked.

SCV lever stop not installed (55-60 series tractors).

Install SCV lever stop in tractor console.

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Low vacuum.

Incorrect hydraulic connections.

Reconnect hoses.

Planting unit vacuum hoses not connected to meter.

Connect vacuum hoses to meter.

SCV lever stop not installed (55-60 series tractors).

Install lever stop in tractor console.

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 rubber strap not engaged.

Attach housing rubber strap to chamber.

Meter seals worn or flipped.

Inspect seals. Reposition or replace.

Air manifold system assembled without O-rings.

Add O-rings.

SCV lever stop cut to wrong length (55-60 series tractors).

Recut lever stop.

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.

SCV lever stop not installed (55-60 series tractors).

Install lever stop.

SCV lever stop cut to wrong length (55-60 series tractors).

Recut SCV lever stop.

Tractor SCV linkage is mistimed (55-60 series tractors).

Tractor SCV linkage must be readjusted.

Air manifold system clogged with dust.

Clean air manifold system.

Control valve failed.

Replace control valve.

Tractor oil level low.

Add oil.

Vacuum gauge does not zero.

Not adjusted.

Zero adjustment. See ZEROING VACUUM GAUGE in Operating Vacuum Meter section.

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