John Deere PowrSpray R4140i Operator's Manual
![John Deere PowrSpray R4140i Sprayer manual cover](/images/sChFOENrWJdsqIAzgEhlFvEL/thumbs/thumb175x175.webp)
To calibrate the R4140i Sprayer, perform a nozzle flow check, ensure tank agitation is consistent, and adjust the spray pressure according to the operator's manual. Regularly verify the accuracy of the rate controller settings.
Check the electrical connections and fuses related to the boom valves. Verify that the section control settings in the display are correctly configured and ensure there is adequate hydraulic pressure.
Filters should be inspected daily during heavy use and replaced every 200 hours or at the start of each season to maintain optimal fluid flow and prevent blockages.
Drain all water from the system, add antifreeze to the tank, and run the pump to circulate it through the entire system. Ensure all hoses, nozzles, and valves are protected from freezing.
Check for clogged nozzles, ensure all nozzles are the same type and size, and inspect hoses for leaks. Adjust boom height and verify that the pressure settings are consistent across the system.
Inspect the pump seals and diaphragms regularly for wear and replace as needed. Check the oil level in the pump and change it every 500 hours of operation or annually.
Use the hydraulic lift controls in the cab to adjust the boom height. Refer to the operator's manual for the recommended height based on the crop type and terrain.
Verify the power supply to the controller, check for software updates, and recalibrate the system. If the issue persists, consult the service manual or contact a John Deere technician.
Flush the tank and lines with clean water, then use a tank cleaner solution to remove any chemical residues. Rinse thoroughly and ensure all nozzles are clear of debris.
Ensure the GPS receiver is correctly mounted and has a clear signal path. Check for software updates and recalibrate the guidance system. If alignment issues persist, contact support for further assistance.