Common Troubleshooting on 400 Series Automatic Applicators

Display reads waiting for BMP

1. Communication harness is damaged on either the baler or tractor
2. Loose harness connection at some point between BMP and monitor.
3. Low power on battery at system startup, resulting in delayed signal sent to monitor

1. Replace damaged harness
2. Clean harness connection points, reconnect harnesses using electrical grease
3. Turn tractor off and restart to cycle power. Or disconnect power harness directly at BMP with power on, wait 2 minutes and reconnect.

Pump will not run.

1. No voltage to Baler Mounted Processor.
2. Pump locked up.
3. Damaged wire.

1. Check for short, low voltage, and replace fuse if necessary.
2. Clean or rebuild pump if motor is OK.
3. Repair damaged wire.

Pump runs but will not prime.

1. Air leak in intake.
2. Clogged intake.
3. Restricted outlet.
4. Check valve on outlet stuck closed.
5. Dirt inside pump.

1. Tighten fittings on intake side.
2. Clean.
3. Check and clean tips.
4. Clean or repair check valve.
5. Replace pump check valve.

Pump does not develop enough output.

1. Air leaks or clogs on inlet side.
2. Pump worn or dirty.

1. Tighten or clean filter bowl assembly.
2. Rebuild pump.

Moisture reading errors (high or low)

1. Wire disconnected or bad connection between moisture discs and baler mounted processor.
2. Low power supply to baler mounted processor.
3. Wet hay over 32% moisture
4. Ground contact with one or both moisture discs and baler mounted processor.
5. Short in wire between moisture discs and baler mounted processor.
6. Check hay with hand tester to verify.

1. Reconnect wire.
2. Check voltage at box. (Min of 12 volts required.) See Diagnostics section of manual.
4. Reconnect.
5. Replace wire.
6. Contact Harvest Tec if conditions persist.

Moisture readings erratic.

1. Test bales with hand tester to verify that cab monitor has more variation than hand tester.
2. Check all wiring connections for corrosion or poor contact.
3. Check power supply at tractor. Voltage should be constant between 12 and 14 volts.

1. Apply dielectric grease to all connections.
2. Install voltage surge protection on tractors alternator.

Flow meter readings do not match up with product usage.
Product is less than actual product used.

1. Voltage supplied to meter is less than 6 volts.
2. Wiring short in signal to baler mounted processor.
3. Clog in meter.
4. Using product other than Harvest Tec

1. Check for a min of 6 volts supplied at Pump controller.
2. Inspect wire and replace if necessary.
3. Back flush with water. DO NOT USE AIR.
4. Catch and weigh product to check outputs.

Flow meter readings do not match up with product usage.
Product is more than actual product used.

1. Check voltage at Pump controller. 18V Max
2. Reflection into meter can cause a high reading. Move meter or protect from sunlight.
3. Look for air bubbles in line. Replace line or other defective area, allowing air into the system.
4. Catch and weigh product to check outputs.

Product shown is more than actual product used.

1. High voltage supplied to the meter.
2. Light interference with meter.
3. Air leak in intake.
4. Using product other than Harvest Tec

1. Check voltage at baler mounted processor. Max of 18 volts.
2. Reflection into meter can cause a high reading. Move meter or protect from sunlight.
3. Look for air bubbles in line. Replace line or other defective area that is allowing air into the system.
4. Catch and weigh product to check outputs.

System leaks product out of tips after shut down.

1. Verify with multi-meter actual voltage. Voltage range should be between 12-14.

1. Clean or Replace.

Terminal reads under or over power.

System always displays “End of Row Pause”.

System does not pause at the end of a row.

1. Cable is damaged or has short.
2. Crop eyes are damaged.