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What are the general safety warnings and precautions before using the ROBOMOW RX50U?
Before operating your ROBOMOW RX50U, please adhere to the following safety precautions:
1. Read the Safety Manual carefully to become familiar with the mower’s controls and proper use.
2. Never allow children, persons with reduced physical, sensory or mental capabilities, or people unfamiliar with these instructions to use the machine. Local regulations may restrict the age of the operator.
3. You are responsible for accidents or harm to other people or their property.
4. Inform your neighbors about the risks and that it is forbidden to enter your lawn while the ROBOMOW RX50U is operating.
5. If your lawn is open to a street or neighbors, you must be present during the mower’s operation or fence your lawn to prevent access to the mower during operation.
What preparations should be made before operating the ROBOMOW RX50U?
1. Ensure the correct installation of the Perimeter Wire as instructed.
2. Periodically inspect the area where the ROBOMOW RX50U is used and remove all stones, sticks, cones, wires, and other foreign objects.
3. Periodically visually inspect to verify that the blade is not worn or damaged. Replace a worn or damaged blade (Part No. MRK9100A/MRK9100W). Switch the mower off when inspecting or replacing the blade.
What are the key safety rules for operating the ROBOMOW RX50U?
Do not leave the mower to operate unattended if you know that there are pets, children, or people in the vicinity. Never mow while people (especially children) or pets are nearby.
1. Do not operate the ROBOMOW RX50U if any safety feature or any part is damaged, worn, or inoperable.
2. Keep hands and feet away from the cutting blade and other moving parts.
3. Always switch the mower off before lifting it or planning to operate any adjustments.
4. Never pick up or carry the ROBOMOW RX50U while the motors are running.
5. Do not touch the blade before it has completely stopped rotating.
6. Do not use the mower for any purpose other than cutting lawn.
7. Keep all guards, shields, safety devices, and sensors in place. Repair or replace damaged parts, including decals.
8. Set the weekly program at times when there are no people on the grass.
9. Do not connect a damaged power cord to the supply, or touch a damaged cord before it is disconnected from the supply as it can lead to contact with live parts.
10. Keep the extension power cord away from the blade to prevent the mower from damaging it.
11. If the power cord becomes damaged or entangled during use, detach it from the mains by pulling the plug from the socket.
12. In the event of an accident or breakdown, immediately press the red STOP button.
How should I transport the ROBOMOW RX50U?
Within the working area:
1. Press the STOP button to stop the mower.
2. Switch the ROBOMOW RX50U off, and carry it by its carrying handle.
Over long distances:
When transporting your ROBOMOW RX50U over long distances, make sure it is switched off. It is recommended to keep the original packaging for shipping purposes.
What are the safety features of the ROBOMOW RX50U?
Your ROBOMOW RX50U is equipped with numerous built-in safety features:
A. Child Lock: Prevents unintended operation by an accidental press of one of the buttons. Only pressing two buttons in the right order will initiate the operation. It is required to activate the Child Lock feature if children under age 6 may come in contact with the mower.
B. Disabling Device: Prevents anyone from operating the ROBOMOW RX50U when it is removed. It is highly recommended to remove the Disabling Device to prevent operation by children or people who are unfamiliar with the mower.
C. Lift Sensor: If the mower is raised from the ground during the blade’s operation, the blade will stop rotating immediately.
D. Tilt Sensor: If the mower is tilted up towards a vertical position, the blade will stop immediately.
E. Obstruction Sensor: When the ROBOMOW RX50U collides with an obstacle, it will stop the rotation of the blade immediately, stop movement in that direction, and reverse itself away from the obstacle.
F. Emergency Stop Button: Pressing the STOP button at any time during operation will stop the mower and the blade immediately.
G. GO/ON-OFF button: Allows you to completely power off your mower, preventing it from any operation. It is required to switch the mower off before lifting it and before any maintenance operation.
H. Base Station and Perimeter Wire: Your ROBOMOW RX50U cannot operate without a Perimeter Wire installed and activated through the Base Station. If the Perimeter Wire signal is turned off, the mower will stop operating.
I. Anti-Theft (not applicable to models for lawns under 200 m²): This function prevents anyone from using or driving the mower unless they unlock it by connecting to it with a registered mobile device.
What are the rules for choosing a location for the ROBOMOW RX50U Base Station?
Follow these simple guidelines to find a proper location for your ROBOMOW RX50U Base Station:
Rule #1: Up to 10 meters / 33 feet away from a power outlet.
Rule #2: A minimum of 1 meter / 3.3 feet of straight wire before, after, and aside the base to allow smooth docking.
Rule #3: The location must be even and flat (up to +/-5% slope).
Rule #4: A minimum of 1 meter / 3.3 feet from a sprinkler head to avoid hitting the mower directly and damaging its internal components.
Also, watch the proper direction of the Base Station relative to the lawn’s edge. The Base Station is installed after the Perimeter Wire is in place.
How do I determine the correct distance for laying the ROBOMOW RX50U Perimeter Wire from the lawn’s edge?
Use the provided RoboRuler to determine the correct distance between the Perimeter Wire and the lawn’s edge for your ROBOMOW RX50U.
• If the edge is relatively flat, lay the wire at RoboRuler distance II from it.
• If the edge is a drop or if the ground is sandy/soft, use distance III of the RoboRuler.
• When the edge is a wall or a bush (> 5cm / 2in high), use distance IV of the RoboRuler.
• Keep a minimum of 1.2 m (4 ft) if the edge of the lawn borders water.
How do I install the Perimeter Wire for the ROBOMOW RX50U?
A. Make a good start:
1. Pull out the wire end marked “A” from the Perimeter Wire spool.
2. Leave a tail of approx. 20 cm / 8″.
3. Secure the tail to the ground where you intend to install your Base Station, measuring the correct RoboRuler distance from the edge.
B. Keep laying the wire:
1. Start unwinding the wire counter-clockwise around the lawn starting at the Base Station’s location.
2. Lay the Perimeter Wire loosely along the perimeter.
3. Secure the wire to the ground with the provided pegs. Pull the wire tight while hammering the pegs to their final depth. Take care not to damage irrigation pipes.
4. Place pegs every few tens of centimeters, adding more where necessary to keep the wire tight to the ground to avoid damage by the mower.
C. Protect obstacles:
• Hard obstacles (vertical, rigid, higher than 15 cm) like trees do not need to be protected. The ROBOMOW RX50U will bump into them and turn away.
• Soft obstacles like flower beds or ponds must be protected by setting Perimeter Islands. Set the Perimeter Wire CLOCKWISE around the obstacle.
D. Complete wire setup:
1. Arrive back at the base location until the two wire ends meet.
2. Put the last peg very close to the first one.
3. Make both wire ends the same length. Use a cutter to cut off the remaining wire.
4. Put one of the provided plot connectors on the second wire end. Use pliers to press the connector and a cutter to cut off any excess wire. Do not leave or create wire wraps.
How do I set up and power on the ROBOMOW RX50U Base Station?
1. Set base:
• Place the Base Station in its planned location.
• Properly align the center of the Base Station with the Perimeter Wire.
• Fix the base to the ground with the 4 supplied metal stakes. Be careful not to damage irrigation pipes.
2. Power up:
• Connect the wire tail marked A to the A terminal and the other tail to the B terminal of the Base Station head.
• Connect the power supply connector to the Base Station head as well.
• Note the markings for placing the Base Station Head. Place the head on the Base Station and align it with the markings.
• Slide the head all the way through, paying attention to the sliders and the dedicated slot for threading the wires.
• Plug the power supply into a socket. Take the power cord out of the mowing area and secure it firmly to the ground so it does not become a tripping hazard.
How do I perform the first run of the ROBOMOW RX50U?
1. Place your ROBOMOW RX50U in the center of your lawn.
2. Press the GO button for 2 seconds to switch it on.
3. Now press the STOP / Home button once to send the mower to the Base Station.
4. The ROBOMOW RX50U will start driving towards the edge of the lawn to locate the Perimeter Wire. Once on it, the mower will follow the wire to reach the Base Station and park there for charging.
What do the indicators on the ROBOMOW RX50U Operating Panel mean?
| Indication Type | Light Status | Meaning |
|---|---|---|
| Lock indication | Steady orange | Child protection is active. |
| Blinking orange | Theft protection is active. | |
| ON/OFF indication | Steady green | Mower is switched on / mower is in operation. |
| Blinking green | Mower is returning to the Base Station / mower is driving to a starting point. | |
| Blinking green fast (and beeping) | Mower is departing from Base Station. | |
| Blinking green slow | Mower is asleep. | |
| Blinking red / steady red | Mower is at fault (see troubleshooting section). | |
| Battery indication | Blinking green | Mower is charging in the base. |
| Steady green | The battery is fully charged. | |
| Blinking red | The battery is almost empty, recharging will soon be required. | |
| Steady red | The battery is low and needs to be recharged to resume operation. |
What do the indicators on the ROBOMOW RX50U Base Station mean?
| Light Status | Meaning |
|---|---|
| Steady green | Perimeter wire signal is OK; the mower is inside the base. |
| Blinking green | Perimeter wire signal is OK; the mower is outside the base. |
| Blinking red fast | Perimeter wire is damaged or disconnected. |
| Blinking red slow | Poor perimeter wire connection or the wire is too long. |
| Steady red | Faulty power supply. |
How do I set the mowing height on the ROBOMOW RX50U?
To set the mowing height on your ROBOMOW RX50U, push and turn the mowing height adjustment knob to the desired direction:
• I means the lowest mowing height (15 mm / 0.6″).
• IIII means the highest mowing height (45 mm / 1.8″).
It is recommended to set the mowing height to the maximum during the first mowing operation or at the beginning of a season, and then gradually reduce it to the desired level. Before the first use, make sure your grass is cut no higher than 60 mm (2.5″).
How do I power the ROBOMOW RX50U on and off?
To power up your ROBOMOW RX50U, press and hold the GO button for 2 seconds until the ON/OFF indication is lit.
To switch it off, simply press and hold the GO button for 2 seconds, until the ON/OFF indication goes off.
Note: If theft protection is enabled, you will need to unlock your mower via the mobile app before you can switch it off.
How do I enable or disable child protection on the ROBOMOW RX50U?
To enable child protection on your ROBOMOW RX50U, press and hold the GO + STOP buttons together for 6 seconds. When enabled, the mower will require a special combination to start a mowing operation or go back to its base.
To disable child protection, press and hold the GO + STOP buttons together for 6 seconds again.
How do I start, stop, or send the ROBOMOW RX50U to its base?
Starting a mowing operation:
• For a regular mowing operation, press the GO button once.
• For a half-time mowing operation, press the GO button twice.
• If child protection is enabled, hold down the STOP button and press the GO button once to unlock it for 30 seconds. Then start a mowing operation as described above.
Stopping an operation:
• To stop any current operation, press the STOP / Home button.
Sending the mower to its base:
• To send the ROBOMOW RX50U to its base, press the STOP / Home button when the mower is inside the lawn.
• If child protection is enabled, you must first unlock it temporarily as described in the “Starting a mowing operation” section.
How much weekly mowing time does my lawn need with the ROBOMOW RX50U?
The recommended weekly mowing times for your ROBOMOW RX50U in peak season are as follows:
| Lawn size * | Recommended weekly mowing times |
|---|---|
| Up to 50 m² | 2 hours |
| 51 – 100 m² | 4 hours |
| 101 – 150 m² | 6 hours |
| 151 – 200 m² | 9 hours |
| 201 – 300 m² | 14 hours |
| 301 – 400 m² | 18 hours |
| more than 400 m² | 21 hours |
(*) Check the recommended lawn size in your mower’s specifications. For the best look of your lawn, we recommend spreading the mowing times evenly among as many days in a week as possible.
What periodic maintenance is required for the ROBOMOW RX50U?
Perform the following maintenance on your ROBOMOW RX50U once a month:
• Inspect the underside of the mower. Clean if necessary. Carefully scrape the collected grass debris from under the mowing deck using a small stick or similar object. NEVER use high pressure water to clean the mower; use only an air blower or wet cloth.
• Check the Perimeter Wire and add pegs where it is loose or not tight to the ground. Adjust the wire for any seasonal changes in the lawn.
• Inspect the Base Station, and clean it from mud and debris to allow proper docking.
How do I replace the blade on my ROBOMOW RX50U?
WARNING: Always switch the mower off before lifting it. The blade is very sharp. Always wear heavy work gloves when working with or around the blade.
1. Power the ROBOMOW RX50U off by pressing the GO button for 2 seconds.
2. Remove the Disabling Device.
3. Put on heavy-duty gloves, and place the RoboTool over the blade so that it covers the whole blade.
4. Use the provided Allen tool to unscrew the screws while holding the blade with the RoboTool.
5. Replace the blade with a new one (Part No. MRK9100A/MRK9100W).
6. Make sure to close both screws tightly.
How should I prepare my ROBOMOW RX50U for winter storage?
The mower:
• Fully charge the ROBOMOW RX50U in its base.
• Switch the mower off by pressing the GO button for 2 seconds.
• Store the mower in dry indoor conditions at ambient temperatures above 0°C.
Base Station:
• No winter storage is required for the Base Station. It can be left on the lawn during the winter period.
• It is recommended to disconnect the Power Supply from the mains during the winter storage period.
How do I replace the battery in my ROBOMOW RX50U?
1. Make sure the ROBOMOW RX50U is not in the Base Station.
2. Power the mower off by pressing the GO button for 2 seconds.
3. Remove the Disabling Device.
4. Ensure that only a replacement battery of the right type (Part No. MRK9101A/MRK9101W) is used.
5. Warning! Do not use a non-rechargeable battery.
6. For the orientation of the battery with regard to polarity and the method of replacement, refer to the instructions supplied with the replacing battery.
7. For instructions on how to deal with a leaking battery, refer to the “Batteries” section of the provided safety instructions.
8. Environmental protection: Remove the battery from the appliance before scrapping it. The battery is to be disposed of safely.
What should I do if the ON/OFF indicator on my ROBOMOW RX50U is blinking red?
In case of a fault, the On/Off indication on the ROBOMOW RX50U panel will light up in red. Press any button to check for an optional sound indication (beeps) for the fault. The table below will guide you to the corresponding action to take.
| No. of beeps | Meaning | Corrective action |
|---|---|---|
| • (one beep) | Mower crossed outside / mower is stuck in place / lift event detected/ wrong wire connection | • Check that the Perimeter Wire is not too close to the edge or not on a sloped area. • Move the mower inside the lawn or away from this particular location and renew the operation. • Check for ground ditches. Fill with dirt and level off. • Swap wire connections at the base station head. |
| •• (two beeps) | Check the blade / mow motor overheat | • Remove the Disabling Device and inspect the blade for foreign material or debris preventing rotation. • Increase cutting height. |
| ••• (three beeps) | No wire signal / waiting for signal / wire is cut | • Confirm power supply is plugged into the power outlet. • Check power supply and perimeter wire connection to the Base Station. • Check the indication on the Base Station. If the wire is cut, repair it with the provided wire connectors. |
| •••• (four beeps) | Check drive wheels / drive motor overheat | • Check the drive wheels and remove grass or other objects. |
| None (blinking red, two LEDs) | No power supply / charging problem | • Confirm power supply is plugged into the power outlet. • Confirm a good connection of the power supply to the Base Station. • Clean the charging pins. |
What do the special indications on the ROBOMOW RX50U mean?
| Indication | Meaning |
|---|---|
| Periodic beeps + ON/OFF LED is red | The ROBOMOW RX50U has been lifted or tilted up. |
| Error sound + Battery LED blinks red two times | Mowing attempt while the battery is low. Need to recharge battery first. |
| Error sound + Lock LED blinks two times | Mowing attempt while child protection is enabled. Press the GO and STOP buttons together to temporarily release the child protection. Now press GO once or twice to start mowing. |
| Error sound + Lock LED blinks three times | Mowing attempt while theft protection is enabled. Unlock the ROBOMOW RX50U with a registered mobile device first. |
| ON/OFF LED & Battery LED blink together in red, when the GO button is pressed | Battery voltage is too low to switch the ROBOMOW RX50U on. Need to keep charging. |
| Lock LED blinks three times while ON/OFF LED is off | The Disabling Device is removed. Insert the Disabling Device to operate the mower. |
How can I reboot or reset my ROBOMOW RX50U?
Rebooting your mower:
If for some reason your ROBOMOW RX50U needs to be rebooted, simply switch it off and on.
Resetting the mower to factory defaults:
When it is required to bring the ROBOMOW RX50U to its factory defaults, you may do so by pressing the GO button for more than 10 seconds (until you hear a long beep and all LEDs start blinking) while the mower is switched off.
My ROBOMOW RX50U does not dock properly and sometimes misses the Base Station’s contacts. What should I do?
The entrance to the Base Station may not be flat. Fill some ground to flatten the lawn around the Base Station to allow a smooth entrance. Ensure the Perimeter Wire is laid according to the installation instructions. Make sure that the Base Station for your ROBOMOW RX50U is placed on relatively level ground.
The mowing quality of my ROBOMOW RX50U is poor. What could be the cause?
The blade on your ROBOMOW RX50U may be dull. Remove the Disabling Device, put on heavy-duty gloves, and inspect the blade. Replace if needed. Avoid mowing wet grass. For the best cut, operate your mower when the grass is dry. It is recommended not to mow in the early morning hours.
My lawn looks patchy and uneven after mowing with the ROBOMOW RX50U. What should I do?
Current mowing times are not enough. Increase the time your ROBOMOW RX50U runs on the lawn. For certain models, you can define additional starting points for more uniform coverage.
My ROBOMOW RX50U bumps into a rigid lawn’s border too frequently. How can I fix this?
Move the Perimeter Wire for your ROBOMOW RX50U to be at a distance of 45 cm / 18″ from any rigid border (like a fence) at the lawn’s edge.
My ROBOMOW RX50U is very noisy. What could be the problem?
The blade on your ROBOMOW RX50U may be damaged or unbalanced. Check if the lawn is free from branches, stones, or other objects that can damage the blade. Replace the blade if needed.
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