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 Troubleshoot 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. Verify 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. |
| | 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. |
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. |
| | Vacuum holes plugged with dirty seed. | 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 Troubleshoot in this 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 Troubleshoot section. |
| | Foreign material (chaff) built up in vacuum dome. | Inspect and clean dome . |
| | Worn meter seals. | Replace seals. |
| | Worn seed disks. | Replace seed disks. |
| | Seed “bridging” in hopper or 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. |
| | Incorrect drive tire or contact tire pressure. | Inflate to proper pressure. See CHECK TIRE INFLATION in Prepare Machine section. |
| | Double eliminator set incorrectly. | See USE DOUBLE ELIMINATOR in Rate Charts and Settings Operator’s Manual. |
| | Vacuum manifold orifices not installed. | Install orifices in correct locations. See VACUUM MANIFOLD ORIFICE PLACEMENT in Service and Adjustments section. |
High seed population. | High vacuum. | Adjust vacuum setting. |
| | Vacuum manifold orifices not installed. | See VACUUM MANIFOLD TUBE ORIFICE PLACEMENT in Service and Adjustments 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 CHECK TIRE INFLATION in Prepare Machine section. |
| | CCS tanks running empty. | Fill or redistribute seed in CCS tanks. |
| | Double eliminator set incorrectly. | See USE DOUBLE ELIMINATOR in your Rate Charts and Settings Operator’s Manual. |
Low vacuum. | Orifices installed incorrectly in manifold tube. | See VACUUM MANIFOLD TUBE ORIFICE PLACEMENT in Service and Adjustments section. |
| | Incorrect hydraulic connections. | Verify hose connections. |
| | 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 and clean dome. |