.png?height=120&name=HT_horizontal%201976_TM_WH%20(3).png)
By following this guide, you can effectively troubleshoot and resolve common issues with 600 Series Applicator pump and system, ensuring reliable operation and performance.
| Problem | Possible cause | Solution |
| Display reads waiting for DCP | 1. Communication harness is damaged on either the baler or tractor | 1. Replace damaged harness |
| 2. Loose harness connection at some point between DCP and monitor. | 2. Clean harness connection points, reconnect harnesses using electrical grease | |
| 3. Low power on battery at system startup, resulting in delayed signal sent to monitor | 3. Turn tractor off and restart to cycle power. Or disconnect power harness directly at DCP with power on, wait 2 minutes and reconnect. | |
| Pump(s) runs but will not prime. | 1. Air leak in intake. | 1. Tighten fittings on intake side. |
| 2. Clogged intake. | 2. Clean. | |
| 3. Restricted outlet. | 3. Check and clean tips. | |
| 4. Check valve on the outlet is stuck closed. | 4. Clean or repair check valve. | |
| 5. Dirt inside pump. | 5. Replace pump check valve. | |
| Pump does not develop enough output. | 1. Air leaks or clogs on inlet side. | 1. Tighten or clean filter bowl assembly. |
| 2. Pump worn or dirty. | 2. Rebuild pump. | |
| Moisture reading errors (high or low) | 1. Wire disconnected or bad connection between star wheels and DCP | 1. Reconnect wire. |
| 2. Low power supply to DCP | 2. Check voltage at box. (Min of 12 volts required.) See Diagnostics section of manual. | |
| 3. System will not display moisture reading | ||
| 3. Wet hay over 75% moisture | 4. Reconnect. | |
| 4. Ground contact with one or both star wheels and | 5. Replace wire. | |
| baler mounted processor. | 6. Contact Harvest Tec if conditions persist. | |
| 5. Short in wire between star wheels and DCP. | ||
| 6. Check hay with hand tester to verify. | ||
| Moisture readings erratic. | 1. Check all wiring connections for corrosion or | 1. Apply dielectric grease to all connections. |
| poor contact. | 2. Install voltage surge protection on tractors alternator. | |
| 2. Check power supply at tractor. Voltage should be constant between 12 and 14 volts | ||
| 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. | 1. Check for a min of 6 volts supplied at Pump controller. |
| 2. Wiring short in signal to baler mounted processor. | 2. Inspect wire and replace if necessary. | |
| 3. Clog in meter. | 3. Back flush with water. DO NOT USE AIR. | |
| 4. Using product other than Harvest Tec | 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. High voltage supplied to the meter. | 1. Check voltage at Pump controller. 18V Max |
| 2. Light interference with meter. | 2. Reflection into meter can cause a high reading. Move meter or protect from sunlight. | |
| 3. Air leak in intake. | 3. Look for air bubbles in line. Replace line or other defective area, allowing air into the system. | |
| 4. Using product other than Harvest Tec | 4. Catch and weigh product to check outputs. | |
| System leaks product out of tips after shut down. | 1. Dirty or defective check valves. | 1. Clean or Replace. |
| Terminal reads under or over power. | 1. Verify with multi-meter actual voltage. Voltage range should be between 12-14 volts. | 1. Clean connections and make sure applicator is hooked to battery. See Diagnostics section of manual. |
| System does not pause at end of row when using 474A crop eyes. | 1. Short in cable. | 1. Replace cable. |
| 2. Damaged sensor. | 2. Replace sensor| | |
| 3. Bad alignment of sensors | 3. Check 474 manual for alignment instructions | |
| Bale rate displays zero. | 1. Bale rate sensors are reversed. | 1. Switch the sensors next to the star wheel. |
| 2. Short in cable. | 2. Replace cable. | |
| 3. Damaged sensor. | 3. Replace sensor. | |
| PAC error message on screen | 1. The DCP and Pump controller are not communicating. | 1. Check all connections at DCP and Pump controller including terminating resistors. |
| 2. Broke connection between the display and DCP or Pump control and DCP. | 2. Check, clean, and tighten connections. | |
| Bale scale not giving accurate reading | 1. Load cell calibration is off | 1. Refer to your scale owner’s manual for instructions on recalibrating. |
| Can’t select moisture / preservative information on baler run screen | 1. DCP not selected in baler software | 1. Select DCP for the moisture option in machine setup. See Communicating through ISOBUS Monitor section in operation manual |
| Error Code 415: Harvest Tec Online | 1. Harvest Tec is communicating with the baler, but | 1. Turn harvest Tec option on. See Baler Monitor Setup section |
| 2. Harvest Tec option is not turned on in baler software | ||
| Error Code 416: Harvest Tec Not Detected | 1. Harvest Tec option is turned on, but no communication between the baler and DCP is happening | 1. Check for nozzle icon in top right corner. Power cycle DCP only if icon not visible. |
| Background of moisture container is red on main baler work screen | 1. Communication error between DCP & AGCO ECU | 1. Enter Auto / Manual mode, verify that no moisture reading has occurred. Then Power cycle DCP only |
| Moisture container only reads 0/0% when HT system is reading correctly | 1. Communication error between DCP & AGCO ECU | 1. Enter Auto / Manual mode, verify that no moisture reading has occurred. Then Power cycle DCP only |
| No “HT preservative” option to select on the | 1. Harvest Tec Pump Module (PAC) is turned off | 1. Turn PAC on. See setup mode section in manual |
| baler run screen | ||
| Blue Tag / Nozzle icon flashing on | 1. CNH ECU is set to communicate with DCP, but DCP is | 1. DCP has to be reconfigured. Contact your dealership to send back to Harvest Tec for repair. |
| baler run screen | not communicating correctly with baler | |
| Warning: HT system type conflicts with machine setup | 1. CNH Baler ECU recognizes that a Harvest Tec system is installed, but system is not configured correctly. | 1. DCP has to be reconfigured. Contact your dealership to send back to Harvest Tec for repair. |
| ‘?’ or ‘—‘ for moisture values are being shown on baler run screen | 1. CNH software must see a stuffer cycle before it will update the moisture values | 1. Simulate a stuffer cycle on baler, or wait until baling in the field and the moisture will update |
| Job records are showing as symbols or incorrect values | 1. The job file is corrupted on SD card | 1. Write down all job record information the operator wishes to keep. Update the DCP software to the most current version available on the Harvest Tec website. Delete all existing jobs by selecting all in the download screen and pressing delete. 2. Be sure to start a new job an verify it is saved by checking job details screen. |
| Can’t download job records, stuck at “Saving to USB Stick” | 1. One of more jobs are corrupted on SD card. If “saving to USB” is displayed, some jobs have been downloaded correctly. | |
| Can’t download job records, stuck at “Searching” | 1. If searching is displayed then the first job is corrupted and download will not work. | |
| No green baler sensors button in bale rate setup screen | 1. DCP is not configured to communicate with baler | 1. If baler is compatible, Harvest Tec can reconfigure DCP to correct setting. Contact your dealership to send back to Harvest Tec for repair. |
|
Bale rate goes to zero and prox sensors/star wheels check out fine |
1. DCP is set to use “Bale Rate Sensor” from baler in calculation and baler does not have this option installed |
1. Turn off Bale Rate Sensor in baler sensors screen, make sure Auto baling rate is turned on in baling rate setup screen |
|
“Cannot open USB” message when trying to download |
1. DCP does not see a USB stick in the Data Transfer port |
1. Make sure the operator has the USB in the DCP with good connect and not the VT port in the cab of the tractor. |
|
Pump will not run. |
1. No voltage to DCP or Pump controller. |
1. Check for short, low voltage, and replace fuse(s) if necessary. |