BOSCH 36-550 Series Universal Rotak Cordless Lawnmower Instruction Manual

: June 12, 2024
: Bosch

Table of Contents

Safety Notes
Operation
Maintenance
Safety Warnings for Battery Chargers
Symbols
Intended Use
Technical Data
Noise/Vibration Information
Mounting and Operation
Starting Operation
Working Advice
References
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BOSCH 36-550 Series Universal Rotak Cordless Lawnmower Instruction Manual

Safety Notes

Warning! Read all safety warnings and all instructions. Make yourself familiar with the controls and the proper use of the product. Please keep the instructions safe for later use!

Explanation of symbols on the garden tool, charger and battery

General hazard safety alert.

Read instruction manual.

Symbol
Make sure that bystanders are not injured by foreign objects being thrown away.

Symbol
Warning: Keep a safe distance to the product when operating.

Symbol
Caution: Do not touch rotating blades. Sharp blade(s). Beware of severing toes or fingers.

Symbol
Switch off and remove isolator switch before adjusting, cleaning and before leaving the product unattended for any period.

Symbol
Not applicable.

Symbol
Wait until all machine components have completely stopped before touching them. The blades continue to rotate after the machine is switched off, a rotating blade can cause injury.

Symbol
Do not use the product in the rain or leave it outdoors when it is raining.

Symbol
Beware electric shock hazard.

Symbol
Not applicable.

Only use the battery charger indoors.

Battery charger contains a safety transformer.

Do not use a high-pressure washer or a garden hose to clean the machine.

Carefully check the area where the tool is to be used for wildlife and pets. Wildlife and pets may be injured while the machine is in operation. Thoroughly check the working area and remove any stones, sticks, wires, bones and foreign objects. When using the machine, ensure that no wildlife, pets or small tree stumps are hidden in the dense grass.

Operation

Never allow children or people unfamiliar with these instructions to use the product. Local regulations may restrict the age of the operator. When not in use store the product out of reach of children.
Never allow children, persons with physical, sensory or mental limitations or a lack of experience and/or knowledge and/or people unfamiliar with these instructions to use the machine.
Children should be supervised to ensure that they do not play with the product.
Never work while people, especially children, or pets are nearby.
The user is responsible for accidents or hazards occurring to other people or their property.
Do not wear open rubber shoes or sandals when using the product. Always wear sturdy shoes and long trousers. Do not use barefoot.
Thoroughly inspect the area where the machine is to be used and remove all stones, sticks, wires, bones and other foreign objects.
Before using, always visually inspect to see that the blades, blade bolts and cutter assembly are not worn or damaged. Replace worn or damaged blades and bolts in sets to preserve balance.
Mow only in daylight or in good artificial light.
Avoid mowing in bad weather conditions especially when there is a risk of lightning.
Avoid operating the machine in wet grass, where feasible.
Walk, never run.
Never operate the machine with defective guards or shields, or without safety devices, for example deflectors and/or grass catchers in place.
We would advise you to wear ear protection for your own convenience.
Never operate the product when you are tired, ill or under the influence of alcohol, drugs or medicine.
Working on banks can be dangerous:
- Do not mow on excessively steep slopes.
- Always be sure of your footing on slopes or wet grass.
- Mow across the face of slopes never up and down.
- Exercise extreme caution when changing direction on slopes.
Use extreme caution when stepping back or pulling the machine towards you.
Never mow by pulling the mower towards you.
Wait until the blades stop if the machine has to be tilted for transportation when crossing surfaces other than grass and when transporting the machine to and from the area to be mowed.
Do not tilt the machine when starting or switching on the motor.
Switch on the motor according to the instructions with feet well away from rotating parts.
Do not put hands or feet near or under rotating parts.
Always stand clear of the discharge zone when operating the machine.
Never pick up or carry the machine while the motor is running.
When storing, make sure that all 4 wheels of the garden tool stand on the ground/floor.
Only lift the garden tool with the carrying handle. Use the carrying handle with care.
Do not modify the product. Unauthorized modifications may impair the safety of your product and may result in increased noise and vibration.

Leaf Collect

The leaf collect blade has been designed to allow you to pick up autumn leaves from your lawn. In order for this functionality to work within optimal parameters, please note the following:

Only collect leaves with the machine set at maximum cutting height.
Collect leaves from your lawn only.
Before collecting leaves inspect the area where the machine is to be used and keep people, pets, glass structures and cars away from use.

Remove the isolator switch:

Whenever you leave the machine.
Before clearing a blockage.
Before checking, cleaning or working on the machine.
After striking a foreign object. Inspect the machine for damage and change the blade as necessary.
If the machine starts to vibrate abnormally (check immediately).

Maintenance

Always wear gardening gloves when handling or working near the sharp blades.
Keep all nuts, bolts and screws tight to ensure safe working with the product.
Check the grass catcher frequently for wear or deterioration.
Inspect the product and replace worn or damaged parts for safety.
Ensure replacement cutting means of the right type are used.
Ensure replacement parts fitted are Bosch-approved.
Before storing, make sure that the product is clean and free of residue. If necessary, clean with a soft dry brush.

Safety Instructions and Recommendations for Optimal Handling of the Battery

Ensure the product is switched off and the isolator key is in the off position before the inserting the battery. Inserting the battery into a product that has the switch on can cause accidents.
Use only Bosch batteries intended specifically for this product. Use of any other batteries may create a risk of injury and fire.
Do not open the battery. There is a risk of short-circuiting.

Protect the battery against heat (e.g., against continuous intense sunlight), fire, water, and moisture. There is a risk of explosion.

Keep the battery not being used away from paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
In case of damage and improper use of the battery pack, vapours may be emitted. Ventilate the area and seek medical help in case of complaints. The vapours can irritate the respiratory system.
Only use the battery with products from the manufacturer. This is the only way in which you can protect the battery against dangerous overload.
The battery can be damaged by pointed objects such as nails or screwdrivers or by force applied externally. An internal short circuit may occur, causing the battery to burn, smoke, explode or overheat.
Do not short-circuit the battery. There is a risk of explosion.
Protect the battery against moisture and water.
Store the product and battery only within a temperature range between –20 °C and 50 °C . As an example, do not leave the battery in the car in summer.
Occasionally clean the venting slots of the battery using a soft, clean and dry brush.

Safety Warnings for Battery Chargers

Read all safety warnings and all instructions. Failure to follow the safety warnings and instructions may result in electric shock, fire and/or serious injury.
Save all safety warnings and instructions for future reference.

Use the battery charger only when you fully understand and can perform all functions without limitation, or have received appropriate instructions.

Never allow children, persons with physical, sensory or mental limitations or a lack of experience and/or knowledge and/or people unfamiliar with these instructions to use the battery charger. Local regulations may restrict the age of the operator.
Supervise children at all times.
This will ensure that children do not play with the battery charger.
Charge only Bosch lithium-ion batteries with a capacity above 2.0 Ah (10 battery cells or more). The battery voltage must match the battery charging voltage of the charger. Do not charge non-rechargeable batteries. Otherwise there is a danger of fire and explosion.

Keep the battery charger away from rain or moisture. Penetration of water in the battery charger increases the risk of an electric shock.

Keep the charger clean. Dirt poses a risk of electric shock.
Always check the charger, cable and plug before use. Stop using the charger if you discover any damage. Do not open the charger yourself, and have it repaired only by a qualified specialist using only original replacement parts. Damaged chargers, cables and plugs increase the risk of electric shock.
Do not operate the charger on an easily ignited surface (e.g. paper, textiles, etc.) or in a flammable environment. There is a risk of fire due to the charger heating up during operation.
Do not cover the ventilation slots of the battery charger. Otherwise, the battery charger can overheat and no longer operate properly.
For increased electrical safety, we recommend using a residual current device with a max. tripping current of 30 mA. Before using, always check your residual current device.

Symbols

The following symbols are important for reading and understanding the original instructions. Please take note of the symbols and their meaning. The correct interpretation of the symbols will help you to use the product in a better and safer manner.

Symbol	Meaning
Movement direction
Reaction direction

Intended Use

The garden product is intended for domestic lawn mowing. The garden product is not intended for hedge cutting, trimming, shredding, etc.
The garden product is intended for lawn mowing at ground level.

Technical Data

Lawnmower| | Universal Rotak 36-550| Universal Rotak 36-555| Universal Rotak 36-560| Universal Rotak 36-590| Universal Rotak 36-670
---|---|---|---|---|---|---
Article number| | 3 600 HB9 505 3 600 HB9 573| 3 600 HB9 508| 3 600 HB9 506 3 600 HB9 574| 3 600 HB9 509| 3 600 HB9 507
Rated voltage| V| 36| 36| 36| 36| 36
Bowl diameter| cm| 38| 38| 38| 38| 38
Height of cut| mm| 25 − 70| 25 − 70| 25 − 70| 25 − 70| 25 − 70
Capacity, grass bag| l| 40| 40| 40| 40| 40
Weight according to EPTA‑Procedure 01:2014| kg| 15.0| 15.0| 14.0| 15.0| 15.0
Serial number| | see type plate on garden tool
Permitted ambient temperature
– during charging| °C| 0 … +45| 0 … +45| 0 … +45| 0 … +45| 0 … +45
– during operation| °C| +5 … +50| +5 … +50| +5 … +50| +5 … +50| +5 … +50
– during storage| °C| -20 … +50| -20 … +50| -20 … +50| -20 … +50 –| -20 … +50
Battery| | Li-Ion| Li-Ion| Li-Ion| Li-Ion| Li-Ion
Rated voltage| V| 36| 36| 36| 36| 36
Article number/Capacity
– 2 607 336 913/ 1 607 A35 02V| Ah| −| −| 2 x 2.0| –| –
– 2 607 336 915/ 2 607 337 047| Ah| 4.0| 4.0| –| 4.0| –
– 1 607 A35 058| Ah| –| –| –| –| 6.0
Number of battery cells
– 2 607 336 913/ 1 607 A35 02V| | –| –| 10| –| –
– 2 607 336 915/ 2 607 337 047| | 20| 20| −| 20| –
– 1 607 A35 058| | −| −| −| −| 20

All values in this manual are measured for usage below or equal to 2000 meters above nominal sea level.

Charger	AL 3620 CV	AL 36V-20
Article number	EU	2 607 225 657
UK	2 607 225 659	2 607 226 275
AU	2 607 225 661	2 607 226 277
KO	2 607 225 667	2 607 226 279
Charging current	A	2.0
Charging period (battery discharged)
– Battery with 2.0 Ah	min	65
– Battery with 4.0 Ah	min	125
– Battery with 6.0 Ah	min	185
Weight according to EPTA‑Procedure 01:2014	kg	0.55
Protection class	/ II	/ II

Noise/Vibration Information

Universal Rotak 36-550| Universal Rotak 36-555| Universal Rotak 36-560| Universal Rotak 36-590| Universal Rotak 36-670
---|---|---|---|---
3 600 HB9 505 3 600 HB9 573| 3 600 HB9 508| 3 600 HB9 506 3 600 HB9 574| 3 600 HB9 509| 3 600 HB9 507
Noise emission values determined according to EN 60335-2-77. Typically the A-weighted noise levels of the product are:
– Sound pressure level| dB(A)| 76| 76| 76| 76| 76
– Sound power leve| dB(A)| 88| 88| 88| 88| 88
– Uncertainty K| dB| = 2.0| = 2.0| = 2.0| = 2.0| = 2.0
Vibration total values ah (triax vector sum) and uncertainty K determined according to EN 60335-2-77
– Vibration emission value ah| m/s2| < 2.5| < 2.5| < 2.5| < 2.5| < 2.5
Uncertainty K| m/s2| = 1.5| = 1.5| = 1.5| = 1.5| = 1.5

Mounting and Operation

Action	Figure	Page
Delivery scopeA)	A	326

Mounting the handle
Adjusting the working height| B| 327
Grassbox fitting/removing| C| 328
Setting the height of cut| D| 328
Inserting the battery| E| 329
Operation

Inserting the isolator switch – Switching on
Mowing
Switching off
Removing the isolator switch

| F| 330
Removing the battery| G| 331
Working advice “mowing”| H| 332
Level indicator, grassbox empty/ful| I| 333
Blade maintenance/Blade replacement| J| 333
Selecting accessories| K| 334

A) Accessories shown or described are not included with the product as standard. You can find the complete selection of accessories in our accessories range.

Starting Operation

For Your Safety

Warning! Switch off, remove the isolator switch and the battery before adjusting or cleaning. The same applies when the cable to the switch in the handle is damaged, cut or entangled.
The blade continues to rotate for a few seconds after the machine is switched off.
Caution: Do not touch the rotating blade.

Charging the Battery
The battery is equipped with temperature monitoring that allows charging only in the temperature range between 0 °C and 35 °C. In this manner, a high battery service life is achieved.

N ote: The battery is supplied partially charged. To ensure full battery capacity, completely charge the battery in the battery charger before using for the first time. The lithium-ion battery can be charged at any time without reducing its service life. Interrupting the charging procedure does not cause damage to the battery. The “Electronic Cell Protection (ECP)” protects the lithiumion battery against deep discharging. When the battery is empty, the product is switched off by means of a protective circuit: The product no longer operates.

Do not continue to press the On/Off switch after an automatic shut-off of the product. The battery could become damaged.
Observe the notes for disposal of the battery.

Inserting/Removing the Battery
Note: Using unsuitable batteries can lead to malfunctions or damage the machine.
Insert the charged battery. Ensure the battery is inserted correctly.
To remove the battery from the machine, press the battery unlocking button and pull the battery out.

Charging Procedure
The charging procedure starts as soon as the mains plug of the charger is plugged into a socket outlet and the battery is inserted onto the charger .
Due to the intelligent charging method, the charging condition of the battery is automatically detected and the battery is charged with the optimum charging current, depending on battery temperature and voltage. This gives longer life to the battery and always leaves it fully charged when kept in the charger for storage.

Meaning of the indication elements on the charger (AL 3620 CV/AL 3640 CV/AL 36V-20)

Rapid-charging Procedure

The rapid-charging procedure is indicated by flashing of the green battery charge indicator. Indication element of the battery: During the charging procedure, the three green LEDs light up one after the other and briefly go out. The battery is fully charged when the three green LEDs light up continuously. The three LEDs go out again approx. 5 minutes after the battery has been fully charged.
Note: The rapid-charging procedure is only possible when the battery temperature is within the allowable charging temperature range, see section “Technical Data”.

Battery charged

Continuous lighting of the green LED indicator indicates that the battery is fully charged. Additionally, a signal tone sounds for approx. 2 seconds, which acoustically indicates that the battery is fully charged.
Afterwards, the battery can be removed for immediate use. When the battery is not inserted, continuous lighting of the LED indicator indicates that the mains plug is inserted in the socket outlet and that the battery charger is ready for operation.

Battery Temperature below 0°C or above 45°C

Continuouslighting of the red LED indicator indicates that the temperature of the battery is not within the allowable charging temperature range, see section “Technical Data”. As soon as the allowable charging temperature range is reached, the battery charger automatically switches to rapid charging.
When the battery is not within the allowable temperature range, the red battery LED lights up when inserting the battery into the battery charger

No Charging Procedure Possible

If a different malfunction of the charging procedure is present, this will be indicated through flashing of the red LED indicator.
The charging procedure cannot be started and the battery cannot be charged (see section Troubleshooting).

Charging Advice
With continuous or several repetitive charging cycles without interruption, the charger can warm up. This is not meaningful and does not indicate a technical defect of the battery charger.

A significantly reduced working period after charging indicates that the battery is used and must be replaced. Observe the notes for disposal.

Battery Cooling (Active Air Cooling)
The fan control integrated into the charger monitors the temperature of the inserted battery. When the battery temperature is above 30 °C, a fan cools down the battery to the optimal charging temperature. The fan generates a ventilation sound when switched on.
If the fan is not running, the battery temperature is within the optimum charge-temperature range or the fan is defective. In this case, the charging time of the battery might be extended.

Working Advice

Battery charge-control indicator
The battery is equipped with a charge-control indicator, which indicates its charge condition. The charge-control indicator consists of 3 green LEDs. Press the charge-control indicator button to actuate the charge-control indicator. After approx. 5 seconds, the charge-control indicator goes out automatically. The charge condition can also be checked when the battery is removed.

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