Looking for a practical guide on how to operate an agricultural sprayer? A tracked, remote-controlled sprayer lets an operator guide the machine through orchard alleys and vineyard rows from a position away from the equipment. A reliable pass starts with the basics: inspect the route, check the machine, confirm the remote responds in a clear area, and follow the correct spray and shutdown sequence for the installed configuration.
The demonstration video below walks through essential controls and field operation using a representative MERI RCS series machine. Because water tanks, pump designs, blowers, boom plumbing, engines, and remote-control configurations vary across customer orders, use this guide alongside your specific machine and component manuals.
One Guide, Multiple Configurations
MERI RCS tracked sprayers are used in orchards, vineyards, vegetable fields and greenhouses. Crop rows, access width and canopy shape differ, so the tank, engine, pump, fan, nozzles and controls can vary by order. The equipment shown in the training video is a 120-type gasoline-powered sprayer. While the core operating logic applies across the wider RCS lineup, mechanical procedures depend on your build.
The C7 controller manages travel, steering and other machine functions, but the channel and switch layout depends on the delivered configuration. Use the labels on your controller and the manual supplied with your machine; do not assume that another sprayer uses the same button assignments.
To review available machine layouts and attachments, explore the MERI remote-control agricultural sprayers product overview.
Pre-Operation Walk-Around and System Checks
Never power up a sprayer and immediately enter crop rows. A pre-start check helps identify visible damage, loose fittings and route hazards before the machine enters a crop row.
- Tank and liquid lines: Check the tank, accessible hoses, filters and fittings for visible damage, blockage or leakage.
- Pump and return: Before starting, set the pump to the bypass/return or pressure-release position described in your machine manual.
- Guards and moving parts: Check that guards are in place and remove loose debris only while the machine is safely stopped.
- Tracks and route: Check the tracks and clear the intended route of people and obstacles. Pay attention to slopes, soft ground and turning clearance.
- Application setup: Review the daily sprayer inspection checklist before the shift and use the nozzle output test guide when checking spray distribution.
Understanding the Handheld Remote Transmitter
The supplied tutorial demonstrates C7 remote operation, including travel, steering, speed selection, throttle and cruise control. The exact controls depend on the machine configuration. Check the supplied labels before operating:
- Power and connection: Switch on the controller and machine in the order shown in the manual. Confirm the machine responds as expected before entering the work area.
- Travel and steering: The tutorial demonstrates forward/reverse travel and left/right steering. Test movement slowly in an open area; use zero-radius turning only if your configuration supports it.
- Throttle and speed modes: Use the controls and high/low speed settings shown on your controller labels and machine manual.
- Cruise and spray controls: Use cruise control and spray switches only where fitted, and confirm their function before field operation.
Starting the Gasoline Engine Safely
The tutorial uses a 120-type gasoline-powered machine. Before starting, park safely, clear people from the area, and follow the engine instructions supplied with your exact machine.
- Set bypass: Put the pump in the bypass/return or pressure-release position as instructed in the manual.
- Power the machine: Switch on the machine main power and controller in the order shown in the manual.
- Prepare the engine: Set the throttle and choke as required by the engine manual. The choke procedure depends on engine temperature and configuration.
- Start and stabilize: Start the gasoline engine using the installed starting method. Once it runs smoothly, return the choke to its normal running position if applicable.
- Check operation: Confirm the engine is running steadily and check for leakage or unusual noise before moving on.
The Step-by-Step Operating Workflow
Follow this disciplined sequence from initial staging through active crop treatment.
Step 1: Low-Speed Staging Test
With spraying off, select low speed and test forward, reverse, steering and stopping in a clear, level area. Keep people away and follow the emergency-stop procedure supplied with the machine.
Step 2: Engage the Spray Circuit
When the engine is stable and the return circuit is operating normally, switch to spraying as directed for your configuration. Adjust the application settings to the crop and product label; do not assume pressure or valve directions from another machine.
Step 3: Initial Low-Speed Application
Start at a controlled, low travel speed. Observe the spray and check for visible leakage or uneven output before continuing with the planned pass.
Step 4: Active Row Management
Keep the sprayer in sight, monitor people and ground conditions, and reduce speed before turns. Use cruise control only if it is fitted and appropriate for the area.
If you encounter uneven mist, pulsing lines, or insufficient atomization during work, refer to our troubleshooting walkthrough on sprayer pump troubleshooting for low pressure output.
Active Field Safety and Abrupt Stops
Remote operation lets the operator control the machine from a distance, but it does not remove spray-drift or chemical-exposure risks. Follow the product label and machine manual:
- Protective equipment: Wear the PPE required by the pesticide label. Keep in mind that remote control does not prevent spray drift or exposure while handling the machine.
- Moving parts: Keep clear of the tracks, fan, belts and other moving parts. Stop the engine and main power, and wait for movement to stop before cleaning or adjusting the machine.
- Work area: Keep the machine in sight. Work slowly around slopes, ditches and soft ground; avoid sharp turns and fast side-slope travel.
- Stop if something is wrong: If control is lost, a leak appears, or the machine makes abnormal noise or vibration, stop spraying and use the machine’s emergency shutdown procedure. Wait until all movement has stopped and release system pressure before approaching or servicing it.
Safe Shutdown and Post-Operation Routine
Use the shutdown sequence in the machine manual before cleaning or servicing:
- Stop spraying: Switch off the spray function.
- Return to bypass: Put the pump into the bypass/return position and release pressure as instructed.
- Park: Move to a safe parking position and keep chemical residue and rinsate away from unauthorized areas as required by the label and local rules.
- Stop the engine: Reduce throttle and allow brief idle if specified in your manual, then shut off the engine.
- Isolate power: Switch off the machine main power and remote controller in the order specified by the manual.
- Before cleaning: Confirm movement has stopped and system pressure is released before opening filters, nozzles or liquid connections.
Frequently Asked Questions
Does every MERI RCS sprayer follow the exact same startup sequence?
The demonstration covers common operating principles, but controls and hardware can differ between orders. Follow the manual and labels supplied with your specific machine.
Are button and switch positions identical on every C7 remote controller?
No. Use the labels on your transmitter and the manual for your machine rather than assuming that button assignments match the video.
Why must the pump be set to bypass before starting the engine?
The MERI RCS manual directs operators to place the pump in its return/bypass or pressure-release position before starting. Follow that sequence for your configuration.
Do operators need to wear PPE when operating a remote-controlled sprayer?
Yes. Remote operation does not eliminate the risk of drift or exposure while handling spray equipment. Follow the PPE instructions on the product label and applicable local requirements.
Choose a Configuration for Your Crop
Compare MERI’s boom and airblast configurations on the RCS sprayer page against your crop, access width and application requirements.
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