BOSCH 18V-26 Universal Grass Cut Instruction Manual

: June 16, 2024
: Bosch

Table of Contents

BOSCH 18V-26 Universal Grass Cut
Product Information
Product Usage Instructions
- Safety Notes
Application
Deliver scope
Product Features
Technical Data
Mounting and Operation
Assembly
Operation
Troubleshooting
Maintenance and Service
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOSCH 18V-26 Universal Grass Cut

Product Information

Specifications

Product Name: UniversalGrassCut 18V-26 | 18V-260
Manufacturer: Robert Bosch Power Tools GmbH
Model Number: F 016 L94 189
Country of Origin: Germany

Product Usage Instructions

General Safety Instructions

Read the user manual before using the product.
Keep a safe distance from the product when it is operating.
Do not use the product in the rain or expose it to rain.

Workplace Safety

Keep your working area clean and organized.
Ensure proper lighting conditions in your working area.

Safety of Persons

Be attentive and pay attention to your surroundings.

Usage and Handling of the Battery-Powered Tool

Follow the safety instructions provided in the user manual.
Never replace non-metal cutting elements with metal cutting elements.
Only operate the trimmer during daylight or in well-lit conditions.
Do not use the trimmer in bad weather conditions, especially during approaching thunderstorms.
Maintain balance while operating to avoid falls.
Remove the battery before replacing the spool.
Always wear protective gloves when cleaning the product or changing the cutting line.

Symbols

Tragen Sie Schutzhandschuhe: Wear protective gloves
Bewegungsrichtung: Direction of movement
Reaktionsrichtung: Reaction direction
Gewicht: Weight
Einschalten: Power On
Ausschalten: Power Off
Gestattete Handlung: Permissible action
Verbotene Handlung: Prohibited action CLICK!
Empfohlene Stellung zum Rasentrimmen: Recommended position for trimming grass
Empfohlene Stellung zum Schneiden von
Rasenkanten: Recommended position for cutting lawn edges
Empfohlene Stellung zum Rasentrimmen under Buschen/Banken: Recommended position for trimming grass under bushes/benches

Delivery Contents

(Refer to Image B)

The product includes the following components:

Refer to Image A

Technical Specifications

Rasentrimmer/Rasenkantentrimmer Sachnummer: UniversalGrassCut 18V-260 3 600 HC1 D..
Voltage: 18V
Speed: 7300 min-1
Cutting Diameter: 1.6 cm
Cutting Line Length: 26 m
Cutting Width: 6 cm
Weight: 120 – 140 kg
Akkutyp: 2.3 kg

FAQ

Q: Can I use the trimmer in the rain?
A: No, the product should not be used in the rain or exposed to rain.

Q: Should I wear protective gloves when using the trimmer?
A: Yes, it is recommended to always wear protective gloves when cleaning the product or changing the cutting line.

Q: Can I replace non-metal-cutting elements with metal cutting elements?
A: No, you should never replace non-metal cutting elements with metal cutting elements.

Q: What should I do in bad weather conditions?
A: It is advised not to use the trimmer in bad weather conditions, especially during approaching thunderstorms.

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 machine

General hazard safety alert.

Read instruction manual.

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

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

Not applicable.

Remove battery before adjusting or cleaning, and before leaving the machine unattended for any period.

Wear eye and ear protection.

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

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

Warning: Keep a safe distance from the machine when operating.
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.

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

General Safety Warnings for Trimmers

Read all safety warnings, instructions, illustrations and specifications provided with this machine.
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.
The term machine in the warnings refers to your mains-operated (corded) machines or battery-operated (cordless) machines.

Work area safety

Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
Do not operate the machine in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Machines create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating the machine.
Distractions can cause you to lose control over the machine. Never operate the machine while people, especially children or pets, are nearby.

Electrical safety

The plug of the machine must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce the risk of electric shock.
Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body is earthed or grounded.
Do not expose the machine to rain or wet conditions. Penetration of water in the machine increases the risk of an electric shock.
Never use the cord for carrying,hanging up or unplugging the machine.
Keep cord away from heat,oil, sharp edges and moving parts.
Damaged or entangled cords increase the risk of electric shock.
When operating a machine outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
When operating the machine in damp environments is unavoidable, use a residual current device (RCD). The use of a residual current device (RCD) reduces the risk of electric shock.

Personal safety

Stay alert, watch what you are doing and use common sense when operating the machine. Do not use a machine while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating the machine may result in serious personal injury.
Wear safety equipment. Always wear eye protection. Wearing safety equipment such as dusk mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the off‑position before connecting to power source and/or battery, picking up or carrying the machine. Carrying machines with your finger on the switch or plugging in machines that have the switch on invites accidents.
Remove any adjusting key or spanner before turning the machine on.
A spanner or a key left attached to a rotating part of the machine may result in personal injury.
Avoid abnormal body posture.
Provide for a secure stance and keep your balance at all times; never run. This enables better control of the machine in unexpected situations.
Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts. Always wear sturdy footwear and long trousers when operating the machine.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dustrelated hazards.
Do not assume a false sense of security and disregard the safety regulations for machines, even if familiar with the machine through multiple use. A careless action can cause severe injury within a fraction of a second.
Use and Handling of the Machine
Do not force the machine. Use the correct machine for your application.
The correct machine will do the job better and safer at the rate for which it was designed.
Do not use the machine if the switch does not turn it on and off.
Any machine that cannot be controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the machine before making any adjustments, changing accessories, or storing machines. Such preventive safety measures reduce the risk of starting the machine accidentally.
Store idle machines out of the reach of children. Do not allow persons unfamiliar with the machine or these instructions to operate the machine. Trimmers are dangerous in the hands of untrained users.
Maintain trimmers with care.
Check for misalignment or binding of moving parts, breakage of parts and any other condition that mayaffect the operation of the machine.
Have damaged parts repaired before using the machine.
Many accidents are caused by poorly maintained machines.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the machine, accessories, application tools, etc. according to these instructions. Take the working conditions and the work to be performed into account. Use of machines for operations different from those intended could result in a hazardous situation.
Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the machine in unexpected situations.

Battery tool use and care

Remove the battery pack
- whenever the machine is left by the user
- before clearing a blockage
- before checking, cleaning or working on the machine
- after striking a foreign object to inspect the machine for damage
- if the machine starts to vibrate abnormally, for immediately check
Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
Use power tools only with specifically designated battery packs.Use of any other battery packs may create a risk of injury and fire.
When battery pack is not in use, keep it away from other metal objects, like 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.
Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help.Liquid ejected from the battery may cause irritation or burns.
Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behaviour resulting in fire, explosion or risk of injury.
Do not expose a battery pack or tool to fire or excessive temperature.
Exposure to fire or temperature above 130°C may cause explosion.
Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions.
Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

Service

Have your machine serviced by a qualified repair person using only identical replacement parts. This ensures that the safety of your machine is maintained.
Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Safety Notes

Operation

The operator must use the product in accordance with the regulations. The local conditions must be taken into account. When working, pay attention to other people, especially to 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 product. Local regulations may restrict the age of the operator.
Children should be supervised to ensure that they do not play with the product.

Application

When working with the machine, always hold it firmly with both hands and provide for a secure stance. The garden tool is guided more secure with both hands.
Always wait until the machine has come to a complete stop before placing it down.
Never operate the machine with a defective protection guard/cover or without safety device. Ensure that these are properly mounted. Never use the garden tool when incomplete or after unauthorised changes.
Never operate the machine if the cord is damaged or worn.
Never replace non-metallic cutting elements with metal cutting elements.
Never repair the garden tool yourself unless you are qualified to do so.
Other persons and animals should remain or be kept a suitable distance away when using the garden tool.
The operator is responsible for third parties in the work area.
Wait until the cutting head has completely stopped before touching it.
The cutting head continues to rotate after the trimmer is switched off; a rotating cutting head can cause injury.
Work only in daylight or in good artificial light.
Avoid operating the trimmer in bad weather conditions especially when there is a risk of lightning.
Operating the trimmer in wet grass decreases the efficiency of performance.
When transporting, switch the machine off and remove the battery.
Always ensure a safe working position when working with the trimmer.
Always keep your hands and feet at a safe distance from rotating parts.
Keep the balance all the time while trimming to prevent falling over.
Take care when placing product on floor, as it may become a trip hazard.
Remove the battery before replacing the spool.
Inspect and maintain the trimmer regularly.
lways wear gloves when cleaning product or replacing cutting means.
Be careful of injuries from the blade used for cutting the cutting line.

After feeding cutting line, always return the trimmer to a horizontal working position before switching on.

Switch the machine off and remove the battery.
- whenever you leave the machine unattended for any period of time
- before replacing the cutting line
- before cleaning or working on the trimmer
- before storing the trimmer
Store the product in a secure, dry place out of the reach of children. Do not place other objects on top of the product.
Do not use the garden tool as a walking stick.

Recommendations for Optimal
Handling of the Battery Pack

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.
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 can occur and the battery can burn, smoke, explode or overheat.
Do not short-circuit the battery.
There is a risk of explosion.
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 1.5 Ah (with at least 5 rechargeable battery cells). 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.

Intended Use
The garden tool is intended for domestic use, for trimming grass, weeds and nettles. It is designed for trimming grass growing on slopes, under obstacles and lawn edges that cannot be reached by the lawn mower. The garden tool is not designed for use as a brush cutter. The garden tool is not intended for commercial or industrial use.

Deliver scope

(see figure B)
Carefully remove the machine from its packaging and check if the following parts are complete:

Grass trimmer
Protection guard
Wheel
Battery**
Charger**
Original instructions

When parts are missing or damaged, please contact your dealer.
country specific

Product Features

(see figure A)

The numbering of the product features refers to the illustration of the product on the graphics pages.

Battery unlocking button
Batterya)
Folding handle
Foot pedal for adjusting the working angle for lawn trimming/edge cutting
Protection guard
Wheel
Handle-adjustment release
On/Off switch
Lock-off button for On/Off switch
Button for adjustment of the working height
Lever
Chargera)
Spool cover
Spool
Hole for line wind-up
Clamping ring
Hook for threading-in the cutting line
Slot for line guiding
Hole for line guiding
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.

Technical Data

A) Limited performance at temperatures < 0 °C

Noise/Vibration Information

The vibration level given in these instructions has been measured in accordance with a standardised measuring procedure and may be used to compare power tools. It can also be used for a preliminary estimation of exposure to vibration.
The stated vibration level applies to the main applications of the power tool. However, if the power tool is used for different applications, with different application tools or poorly maintained, the vibration level may differ. This can significantly increase the exposure to vibration over the total working period.
To estimate the exposure to vibration accurately, the times when the tool is switched off or when it is running but not actually being used should also be taken into account. This can significantly reduce the exposure to vibration over the total working period.

Implement additional safety measures to protect the operator from the effects of vibration, such as servicing the power tool and application tools, keeping the hands warm, and organising workflows correctly.

Mounting and Operation

Assembly

Caution: Switch the garden tool off and remove the battery before performing any maintenance.

Mounting the protection guard (see figure C)
Slide the protection guard (5) onto the trimmer head until a click can be heard. Affix the protection guard (5) to the trimmer with the screw. The screw is already fitted to the bottom housing upon delivery.
Never use the trimmer without the protection guard (5) mounted. After mounting, the protection guard (5) may not be removed from the trimmer.

Adjusting the working height (see figure D)
Press button (10) and adjust the trimmer to the desired height. Release button (10).
Always use the trimmer in a working position, never in the storage position. The storage position is when the trimmer is fully retracted. When adjusting the working position, make sure that the mechanism for height adjustment is properly locked. A click can be heard when the mechanism engages.

Folding out the handle (see figure E)

Press and hold button (7), fold out the handle (3) to the stop and then release button (7). Make sure that the handle (3) is properly locked. Do not put the pressure on the handle (3) while adjusting it.

Mounting the wheel (see figure F)
Mount wheel (6) to the trimmer head. Observe correct position of the arrows on the trimmer head. Ensure that the hook engages properly in the tab. Turn the wheel (6) against the trimmer head until the lever (11) can be heard to engage
with a click.
To remove, pull lever (11) until it disengages and remove the wheel (6) in opposite direction.
Switching on

Caution: Switch garden tool off and remove battery from machine before adjusting or cleaning.

Charging the Battery

Pay attention to the mains voltage. The voltage of the power source must match the voltage specified on the rating plate of the charger.
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.

Note: 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 (see figure G)

Note: Using unsuitable batteries can lead to malfunctions or damage the machine.

Insert the charged battery (2). Ensure the battery is inserted correctly.
To remove the battery (2) from the machine, press the battery unlocking button (1) 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 (2) is inserted onto the charger (12).
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 (AL 1810)

Flashing battery charge indicator
The charging process is indicated by the flashing of the battery charge indicator .

Solid light on battery charge indicator

A solid light on the battery charge indicator signals that the battery is fully charged or that the temperature of the battery is not within the permitted charging temperature range, and can therefore not be charged. The battery is charged as soon as the allowable charging temperature range is reached.
When the battery is not inserted, a solid light on the battery charge indicator signals that the mains plug is inserted in the plug socket and that the charger is ready for operation.

Meaning of the Indication Elements (AL 1830 CV)

(Fast) Flashing of the Green Battery Charge Indicator
The rapid-charging procedure is indicated byfast flashing of the green battery charge indicator .

Note: The rapid-charging procedure is only possible when the battery temperature is within the allowable charging temperature range, see section “Technical Data”.

(Slow) Flashing of the Green Battery Charge Indicator
When the charging condition of the battery is 80%, the green battery charge indicator flashes slowly.

The battery can be removed for immediate use.

Continuous Lighting of the Green Battery Charge Indicator

Continuous lighting of the green battery charge indicator indicates that the battery is fully charged.
When the battery is not inserted, continuous lighting of the battery charge indicator indicates that the mains plug is inserted in the socket outlet and that the battery charger is ready for operation.
Continuous Lighting of the Red Battery Charge Indicator
Continuous lighting of the red battery charge 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.
Flashing Red Battery Charge Indicator
A flashing red battery charge indicator indicates a different malfunction of the charging procedure, see section “Troubleshooting – Causes and Corrective Measures”.

Operation

Caution: Switch the garden tool off and remove the battery before performing any maintenance.
The cutting line continues to rotate for a few seconds after the trimmer is switched off. Allow the motor/cutting line to stop rotating before switching on again.
Do not briefly switch off and on again several times in a row.
Only use Bosch approved cutting elements. Cutting performance will vary with different cutting elements.

Switching On and Off (see figure H)
To switch on, firstly press the lock-off button (9). Then press the On/Off switch (8) and keep it pressed.
To switch off, release the On/Off switch (8).

Lawn Trimming/Edge Cutting (see figures I − K)

Lawn trimming (see figure I)
Press the foot pedal (4) and set the 48° angle for lawn trimming.

Move the trimmer left and right, keeping it well away from the body. Cut higher grass in steps.

Edge cutting (see figure J)
Press the foot pedal (4) and set the 36° angle for edge cutting.
Rotate the handle by 180° and then turn the trimmer clockwise to the desired working position.
Guide the trimmer along the edge of the lawn. By using the wheel, you avoid contact with solid surfaces or walls to prevent rapid wear of the cutting line.

Cutting around trees and bushes (see figure K)
Press the foot pedal (4) and set the 24° angle for cutting around trees and bushes.
Carefully cut around trees and bushes so that they do not come into contact with the cutting line. Plants can die if you damage the bark.
Dismounting the spool, winding up the cutting line and mounting the spool (see figures N to L)

Remove the battery before replacing the spool.
Press both latches of the spool cover together and remove the spool cover (13). Afterwards, remove the empty spool (14).
Cut off approx. 6 m line from the refill roll. Thread the end of the line into the spool’s hole for line wind-up (15). Thread/ work the line under the hook (17). Then, thread/work the line up and through the slot (18) in the spool.

Afterwards, wind up the thread on the spool uniformly and tightly.
Slide the other end of the cutting line through the hole for line guiding (19) in the trimmer head and mount the spool back into the trimmer head. Affix the spool by mounting the spool cover (13).
The spool cover (13) can only be mounted in one position.

Line Feeding IntelliFEED
The trimmer is equipped with the IntelliFEED system, which automatically rolls off the line to retain the cutting diameter.

Troubleshooting

Lawn trimmer/Edge cutter

Battery and charger

Maintenance and Service

Before any work on the garden product itself (e. g. maintenance, tool change, etc.) as well as during transport and storage, remove the battery from the garden product. There is danger of injury when unintentionally actuating the On/Off switch.

Maintenance, Cleaning and Storage

For safe and proper working, always keep the product clean.
For safe and proper working, always keep the garden tool and the ventilation slots clean.
Never spray the garden tool with water.
Never immerse the garden tool in water.
Store the garden product in a secure, dry place, out of the reach of children.
Do not place other objects on the garden product.

Make sure that the clamping ring is always attached to the spool during use. Otherwise, high vibrations may occur.

Battery Maintenance
Use the following procedures to enable optimum usage of the battery:

Protect the battery against moisture and water.
Store the machine 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.
It is recommended that the battery is not stored within the product but stored separately.
Do not leave the battery in the product in direct sunlight.
The ideal storage condition for the battery is 5 °C.
Occasionally clean the venting slots of the battery using a soft, clean and dry brush.
A significantly reduced working period after charging indicates that the battery is used and must be replaced.

Robert Bosch Power Tools GmbH
70538 Stuttgart
GERMANY
www.bosch-pt.com