Q: How to unlock the Bosch Indego robotic mower?

The Bosch Indego is equipped with a PIN code security system that locks the control buttons after 3 minutes of inactivity (if this function is activated) or you can manually lock them at any time. To unlock your Indego: Press the Unlock Buttons button located on the control panel Enter your personal PIN code that you set during the initial installation The buttons will be active again If you have forgotten your PIN code , you will need to contact Bosch customer service to unlock the device. This is an intentional security measure to prevent theft. Important: If the device goes into automatic safety mode (for example, after a lift detected by the lift sensor), you will also need to enter the PIN code to restart the motor.

Question 1

How to start and operate the ROTAK 34 LI lawn mower?

Accepted Answer

To start the ROTAK 34 LI, you must first ensure that the 36 V lithium-ion battery is properly charged and installed. Insert the isolator 24 into the battery cover: this is the safety key that must be in place before starting. Then press the safety switch (2) located on the handlebar and hold it down, then pull the control lever (1) towards you, in the direction of the handlebar. Release the safety switch - the motor starts with a slight delay of about 1 second. You can keep the control lever pressed to continue mowing.

Practical tip: To facilitate starting, first push the handlebar down to slightly lift the front wheels, then activate the starting system. The blades begin to rotate as soon as the motor starts and stop quickly thanks to the built-in motor brake that operates within a few seconds.

Battery and temperature check: Before starting, you can check the battery charge status by pressing the indicator light button (13): 3 green LEDs lit indicate a fully charged battery. Ensure that the operating temperature is compliant: the ROTAK 34 LI operates within a battery temperature range of -10°C to +60°C and an electronics range of 5°C to 75°C. If the red temperature control light (15) lights up or flashes, the device is not operating at full power or will not start at all until the temperature returns to the optimal range.

Stopping: To stop the mower, simply release the control lever (1). The blades will continue to rotate for a few seconds before coming to a complete stop thanks to the motor brake. If you do not use the mower immediately after stopping, remove the isolator 24 for safety reasons.

Important: Always wait for the motor and blades to come to a complete stop before restarting the mower after a stop. Do not reactivate the device at very short intervals, and do not install the battery or isolator until you have fully assembled the device according to the instructions.

Question 2

How to remove or take out the battery from the Bosch Rotak 36 Li lawn mower?

Accepted Answer

To remove the battery from your Bosch Rotak 36 Li lawn mower, follow these essential steps:

Preparation and safety

Completely stop the device by toggling the On/Off switch to the off position.
Wait a few seconds for the blade to come to a complete stop, as the blade continues to spin for a few seconds after the mower is turned off.
Remove the disconnect switch (the safety key) to ensure that the device is completely powered off.
Always wear gardening gloves during this operation.

Removing the battery

Locate the 36V Lithium-ion battery secured on the side of your mower.
Remove the battery by sliding it out of its quick-release housing. No tools are required.
Ensure that the battery contacts and the housing remain clean. If the contacts are dirty, clean them by inserting and removing the battery several times.

After removal

This operation is essential before any maintenance or cleaning work on your mower. Only use Bosch batteries for this mower. Store your battery in a dry place, at a temperature between 0 and 50 degrees Celsius. Your battery can also work with other Bosch 36V tools, allowing you to have a backup battery in rotation.

Question 3

What are the steps to assemble the BOSCH AdvancedRotak 36V-44-750 lawn mower when it arrives in the box?

Accepted Answer

Initial assembly steps

Upon receiving your BOSCH AdvancedRotak 36V-44-750 lawn mower, you must follow these steps before using it:

Handle deployment - Fully open the control handle that comes folded in the packaging.
Wheel check - Ensure that all 4 wheels are resting properly on the ground.
Cutting height adjustment - Turn the central dial to select the desired height between 25 and 80 mm.
Collector basket assembly - Place the grass collection basket (capacity 50 liters) in its position according to the instructions in the manual.
Battery installation - Insert the fully charged GBA 36V battery by pushing it until it is securely seated.

Important tip: Before any handling, always remove the battery and wear gloves. Check that all screws and nuts are properly tightened before first use. The manual contains detailed diagrams on pages 249-258 showing each assembly step.

Question 4

Why does my BOSCH GRA 18V2-46SP lawn mower not cut grass after unlocking?

Accepted Answer

If your Bosch GRA 18V2-46SP lawn mower does not cut after unlocking, first check the following points:

The batteries - This is the most common cause. This mower operates with two 18V batteries (36V total) that must be fully charged and securely locked in their respective slots. If only one battery is inserted, the device will not work at all. Ensure that the metal contacts are not dirty or oxidized - clean them lightly with a dry cloth if necessary. Also check the charge indicator on the batteries: if they show less than 20% (orange or red LED), recharge them completely before proceeding.

The blade safety lever - This lever, located on the handles, must be held down continuously during mowing. If you release it even for a moment, the blades will stop immediately. Some users forget this operation after unlocking and mistakenly think the mower is broken.

The cutting motor activation - Unlike the simple start of the device, you must press the blade button (visible on the handle) for the cutting motor to start. Without this action, the blades will not turn. This is an important safety feature on this model.

The handle in operating position - When unlocking, check that the handle has been fully unfolded and locked in the upright position (operating position). If it is partially folded or locked in the storage position, the device will not start.

The cutting height and tall grass - If the grass you were mowing at unlocking was very tall (over 20 cm), reduce the forward speed or increase the cutting height to 50-70 mm instead of 30 mm. Excessively tall grass can trigger the motor's thermal protection or create an overload. Start with an intermediate height and progress gradually.

Blockages and stuck blades - Before starting, check that no object (stone, stick, wrapped grass) is blocking the blades under the chassis. After unlocking, debris may have accumulated. Always remove both batteries before any inspection. If the motor does not run after unlocking, check that the blade nut/bolt is properly tightened (25-30 Nm torque) and that the blades are not mounted upside down.

If after these checks the blades turn but do not cut the grass, the blades are probably dull (a common issue after prolonged storage). In this case, replace the blades with new ones - this is a simple task that only requires unscrewing the fixing nut. You can find replacement blades from Bosch under the appropriate spare part reference for your model.

Question 5

The motor starts but the blade does not turn

Accepted Answer

Possible causes and solutions

This problem is usually due to a blockage of the blade or a loose attachment. Here’s how to diagnose and fix it:

Grass or debris stuck under the mower

This is the most common cause. Immediately disconnect the device, then tilt the mower on its right side and remove the grass or debris stuck using a piece of wood or plastic (never your hands).

Check the blade attachment screw

Disconnect the device. The blade is secured by the attachment screw (ref. 16). To check that it is tight: use a screwdriver in the hole provided to lock the drive, then try to turn the blade by hand - it should not move at all. If it turns freely, tighten the screw.

Inspect the condition of the blade

Check if the blade (ref. F016 800 273) is not cracked, bent, or damaged. A broken blade cannot turn properly and must be replaced. You can refer to the blade replacement guide in the manual for installation.

Overheating or protection trigger

If the mower has struggled with particularly thick or wet grass, an overload protection system may have been triggered. Wait 15-20 minutes for the motor to cool completely, then restart the device.

If the problem persists

After these checks, if the blade still does not turn, contact Bosch customer service at 0 800 05 50 51 (free call, office hours). It may be an internal drive issue requiring repair at an authorized service center.

Question 6

Why does the Rotak 32 LI HP mower start but stop shortly after?

Accepted Answer

If your Rotak 32 LI HP mower starts correctly but stops very quickly, check the following points:

Priority checks to perform

Battery condition: Ensure that the 36V lithium-ion battery is fully charged. A full charging time is 95 minutes with the AL 3620 CV charger. An insufficiently charged battery can cause premature engine shutdown.
Battery temperature: The battery must operate between 0 and 45°C. If it is too hot or too cold, wait for it to reach an operational temperature before restarting the mower.
Disconnect switch (battery switch): Check that the disconnect switch is properly pressed. A poor connection can cause the engine to cut out unexpectedly.
Cleaning the housing: Clean the underside of the mower to remove any grass or debris that may obstruct operation. Use a damp cloth (without direct water spray).

If the problem persists

If after these checks the mower continues to stop shortly after starting, contact Bosch customer service. A more serious mechanical or electrical issue may be at fault.

Question 7

Where is the nameplate located on the UniversalRotak 37-570 lawn mower?

Accepted Answer

The nameplate of your Bosch UniversalRotak 37-570 lawn mower is attached directly to the body of the device. Look for it primarily on the underside or the back of the grass collection box, as well as on the sides of the motor housing. It may be engraved, glued, or stamped depending on the manufacturing point.

On this nameplate, you will find the following information, essential for maintenance and customer service procedures:

The 10-digit article number (format: 3 600 HA 6 2...) - essential for ordering original Bosch spare parts from customer service
The serial number of your machine
The nominal power: 1400 W
The voltage: 230 V, 50 Hz
The protection class: II (double insulation)

To easily locate the plate, systematically inspect all corners and edges of the grass collection box, especially the lower back corner or along the side walls. If it is very dirty, a light cleaning with a dry cloth may be enough to make it readable.

Important tips: Note or photograph these numbers now. The 10-digit article number is mandatory for any order of spare parts from Bosch customer service, for warranty claims, or for any technical assistance. Keep this information in a safe place or as a photo for future reference.

Question 8

What should I do if I forgot the PIN code for my Bosch INDEGO mower?

Accepted Answer

Unfortunately, if you have forgotten your personal PIN code, the INDEGO mower cannot be unlocked without intervention from a Bosch service center.

Here’s why and what you need to do:

Why no DIY unlocking?

The PIN is a personal security code that only Bosch can reset with an internal master code
Bosch has deliberately removed any "backdoor" to prevent theft or unauthorized use of your mower
The service center verifies your identity before proceeding

Steps to follow

You need to bring your INDEGO with its charging station to an authorized Bosch After-Sales Service center. The center will proceed with:

Verifying your identity and ownership (purchase documents recommended)
Resetting the PIN via the master code
Setting up a new PIN of your choice

Contact Bosch service

Phone: 0811 360 122
Email: contact.outillage-electroportatif@fr.bosch.com

You can also contact your original INDEGO dealer to find out the nearest authorized service center.

Question 9

How to unlock the Bosch Indego robotic mower?

Accepted Answer

The Bosch Indego is equipped with a PIN code security system that locks the control buttons after 3 minutes of inactivity (if this function is activated) or you can manually lock them at any time.

To unlock your Indego:

Press the Unlock Buttons button located on the control panel
Enter your personal PIN code that you set during the initial installation
The buttons will be active again

If you have forgotten your PIN code, you will need to contact Bosch customer service to unlock the device. This is an intentional security measure to prevent theft.

Important: If the device goes into automatic safety mode (for example, after a lift detected by the lift sensor), you will also need to enter the PIN code to restart the motor.

Question 10

My ROTAK 37 LI mower no longer cuts grass but the battery works normally

Accepted Answer

If your ROTAK 37 LI starts and operates normally but no longer cuts grass, the problem almost certainly lies with the dull or improperly mounted blades, and not with the 36V battery. Here’s how to diagnose and resolve the issue.

Initial check (before working on the blades):

Completely stop the mower, remove the 36V battery, and wait a few seconds (the blades continue to spin briefly after stopping)
Adjust the cutting height: if it is too low (less than 35 mm), raise it using the adjustment lever 12
Clean the cutting deck by removing any compacted grass or debris that may block the blades
Check that the blades are not obstructed

Blade inspection:

Lay the mower on its right side to inspect the blade 30 from underneath
Check that the blade is not dull (sharp and even edge) or damaged
Ensure that the blade is mounted in the correct direction
Check that the nut or screw of blade 29 is tight - a loose nut completely prevents cutting

Replacing the blade (if it is dull or damaged):

Stop the device, remove the disconnect switch, and take out the 36V battery
Lay the mower on its right side
Insert a screwdriver into hole 26 to block the drive mechanism
Hold the blade 30 with a cloth and unscrew the blade screw 29
Remove washer 28 and blade 30
Install the new blade in the correct direction, then washer 28
Tighten screw 29 firmly - do not grease or oil the blade or screw

A machine that runs but does not cut is always due to the blades (dulling, improper mounting, or loose nut) and never to a battery issue. After thoroughly cleaning the deck and checking the nut, if cutting does not improve, the blades must be replaced. Remember that the minimum cutting height is 35 mm and the maximum is 70 mm - a height that is too low significantly reduces cutting capacity.

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