greenworks ST40L05 String Trimmer User Manual

June 17, 2024
Greenworks

greenworks ST40L05 String Trimmer

Specifications

Product Information

Description
This machine is a string trimmer designed to cut grass, light weeds, and similar vegetation at or around ground level. It is not suitable for cutting hedges, shrubs, bushes, flowers, or compost.

Overview

  • Rear handle
  • Trigger
  •  Lock-out lever
  • Carrying ring
  • Auxiliary handle
  • Upper shaft
  • Coupler
  • Lower shaft
  • Guard
  • Cut-off blade
  • Trimmer head

Product Usage Instructions

Safety Instructions
Read and understand all instructions before using the string trimmer. Failure to follow safety instructions may result in electric shock, fire, or serious injury.

General Power Tool Safety Warnings
Ensure to read all safety warnings, instructions, illustrations, and specifications provided with the tool. Always follow the safety guidelines to prevent electric shock, fire, or injury.

Lawn Trimmer and Lawn Edge Trimmer Safety Warnings
Follow all safety warnings specific to using the string trimmer for lawn trimming and edging to ensure safe operation.

Operation

  1. Install the Battery Pack: Follow the instructions provided in the manual to correctly install the battery pack.
  2. Remove the Battery Pack: When not in use, make sure to remove the battery pack from the string trimmer.
  3. Start the Machine: Press the trigger while holding the rear handle to start the trimmer.
  4. Stop the Machine: Release the trigger to stop the trimmer.
  5. Adjust the Length: Modify the length of the string trimmer for comfortable use by adjusting the upper and lower shafts.
  6. Maintenance: After use, clean the trimmer head and cut off the blade to ensure optimal performance.

FAQ
Symbols on the Product

Symbol Explanation
V Voltage
A Current
Hz Frequency (cycles per second)
W Power
min Time
/min Revolutions, strokes, surface speed, orbits per minute

Safety Precautions
Always wear appropriate protective equipment to reduce the risk of injury from flying debris or accidental contact with the cutting line or blade. Read and understand all instructions before operating the product.
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DESCRIPTION

PURPOSE
This machine is used to cut grass, light weeds, and other similar vegetation at or around ground level. The cutting plane must be approximately parallel to the ground surface. You cannot use the machine to cut or chop hedges, shrubs, bushes, flowers, and compost.

OVERVIEW

  1. Rear handle
  2. Trigger
  3. Lock-out lever
  4. Carrying ring
  5. Auxiliary handle
  6. Upper shaft
  7. Coupler
  8. Lower shaft
  9. Guard
  10. Cut-off blade
  11. Trimmer head

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING (THIS POWER TOOL)
WARNING
Read and understand all instructions before using this product. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious personal injury.

  • Use only identical manufacturer’s replacement parts and accessories. Use of any other parts may create a hazard or cause product damage.

  • Always wear safety glasses with side shields marked to comply with ANSI Z87.1. Everyday glasses have only impact-resistant lenses. They are NOT safety glasses. Following this rule will reduce the risk of eye injury. Use face mask if operating in dusty workspaces.

  • Avoid Dangerous Environment – Don’t expose power tools to damp conditions. Water entering a power tool will increase the risk of electric shock.

  • Don’t use it in the rain.

  • Keep all bystanders, children, and pets at least 50 ft. away.

  • Dress Properly – Do not wear loose clothing or jewelry. They can be caught in moving parts. Use of protective gloves and footwear is recommended when working outdoors. Wear a protective hair covering to contain long hair.

  • Use right Appliance. Do not use an appliance for any job except that for which it is intended.

  • Avoid Unintentional Starting – Avoid holding a finger on the power switch when the unit has a battery inserted and is not in use. Carrying this unit with a finger on the switch when the battery is inserted increases the likelihood of an accident.

  • Don’t Force Appliance – It will do the job better and with less likelihood of a risk of injury at the rate for which it was designed.

  • Don’t overreach – Keep proper footing and balance at all times.

  • Stay alert – Watch what you are doing. Use common sense. Do not operate this unit when you are tired, ill or under the influence of alcohol, drugs or medication.

  • Always store idle power tools indoors – When not in use, power tools should be stored indoors in a dry and high or locked-up place, out of reach of children.

  • The machine is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience
    and knowledge unless they have been given supervision or instruction concerning use of the machine by a person responsible for their safety. Children should be supervised to ensure that they do not play with the machine.

  • Maintain Appliance With Care – Replace string head if cracked, chipped, or damaged in any way. Be sure the string head is properly installed and securely fastened. Keep cutting edge sharp and clean for best performance and to reduce the risk of injury. Follow instructions for lubricating and changing accessories. Inspect appliance cord periodically, and if damaged, have it repaired by an authorized service facility. Inspect extension cords periodically and replace if damaged. Keep handles dry, clean, and free from oil and grease. Failure to do so can cause serious injury.

  • Check damaged parts before using the appliance, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, damaged mountings, and any other condition that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless indicated elsewhere in this manual.

  • Remove or disconnect battery before servicing, cleaning or removing material from the gardening appliance.

  • Do not modify or attempt to repair the appliance or the battery pack (as applicable) except as indicated in the instructions for use and care. Use appliances only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire. Use only with Greenworks BAF749 battery or other BAF series.

  • 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 only with Greenworks CAF820 charger or other CAF series.

  • 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 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 appliance that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.

  • Do not expose a battery pack or appliance to fire or excessive temperature. Exposure to fire or temperature above 265 °F (130 °C) may cause an explosion.

  • Do not dispose of the batteries in a fire. The cells may explode. Check with local codes for possible special disposal instructions.

  • Do not open or mutilate the batteries. Released electrolyte is corrosive and may cause damage to the eyes or skin. It may be toxic if swallowed.

  • Exercise care in handling batteries in order not to short the battery with conducting materials such as rings, bracelets, and keys. The battery or conductor may overheat and cause burns.

  • Follow all charging instructions and do not charge the battery pack or appliance outside of the temperature range specified in the instructions. Charging improperly or at temperatures outside of the specified range may damage the battery and increase the risk of fire.

  • Have servicing performed by a qualified repair person using only identical replacement parts. This will ensure that the safety of the product is maintained.

  • Keep guards in place and in working order.

  • Keep hands and feet away from the cutting area.

  • Disconnect the battery pack from the appliance before making any adjustments, changing accessories, or storing the appliance. Such preventive safety measures reduce the risk of starting the appliance accidentally.

  • Use only with the nylon cutting line of 1.063″ (2.7mm) diameter. Do not use heavier lines than recommended by the manufacturer and line materials of other types – for example, metal wire, rope, and the like.

SAVE THESE INSTRUCTIONS
GENERAL POWER TOOL SAFETY WARNINGS
READ ALL INSTRUCTIONS BEFORE USING (THIS POWER TOOL)

WARNING
Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or BATTERY-operated (cordless) power tool.

Work area safety

  • Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
  • Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks that may ignite the dust or fumes.
  • Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

  • Power tool plugs 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 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 power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
  • Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
  • When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
  • If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

Personal safety

  • Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
  • Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust 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 a power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
  • Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
  • Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
  • Dress properly. Do not wear loose clothing or jewelry. Keep your hair and clothing away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
  • 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 dust-related hazards.
  • Do not let familiarity gained from the frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

Power tool use and care

  • Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.

  • Do not use the power tool if the switch does not turn it on and off. Any power tool 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 power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.

  • Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.

  • Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.

  • 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 power tool, accessories tool bits etc. per these instructions, taking into account the working conditions and the work to be performed. Use of the power tool 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 tool in unexpected situations.

Battery tool use and care

  • 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 the 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 behavior 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 an 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 power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
  • Never service damaged BATTERY packs. Service of BATTERY packs should only be performed by the manufacturer or authorized service providers.

LAWN TRIMMER AND LAWN EDGE TRIMMER SAFETY WARNINGS

  • Do not use the machine in bad weather conditions, especially when there is a risk of lightning. This decreases the risk of being struck by lightning.
  • Thoroughly inspect the area for wildlife where the machine is to be used. Wildlife may be injured by the machine during operation.
  • Thoroughly inspect the area where the machine is to be used and remove all stones, sticks, wires, bones, and other foreign objects. Thrown objects can cause personal injury.
  • Before using the machine, always visually inspect to see that the cutter and the cutter assembly are not damaged. Damaged parts increase the risk of injury.
  • Keep guards in place. Guards must be in working order and be properly mounted. A guard that is loose, damaged, or is not functioning correctly may result in personal injury.
  • Keep all cooling air inlets clear of debris. Blocked air inlets and debris may result in overheating or risk of fire.
  • Wear eye protection and ear protection. Adequate protective equipment will reduce personal injury.
  • While operating the machine, always wear non-slip and protective footwear. Do not operate the machine when barefoot or wearing open sandals. This reduces the chance of injury to the feet from contact with the moving cutter.
  • Always wear clothing such as trousers that covers the operator’s legs while operating the machine. Contact with the moving cutter or line may cause injury.
  • Keep bystanders away while operating the machine. Thrown debris can result in serious personal injury.
  • Do not operate the machine above waist height. This helps prevent unintended cutter contact and enables better control of the machine in unexpected situations.
  • Exercise caution when operating the machine in wet grass. Walk, never run. This reduces the risk of slipping and falling which may result in personal injury.
  • Do not operate the machine on excessively steep slopes. This reduces the risk of loss of control, slipping and falling which may result in personal injury.
  • When working on slopes, always be sure of your footing, always work across the face of slopes, never up or down and exercise extreme caution when changing direction. This reduces the risk of loss of control, slipping and falling which may result in personal injury.
  • Keep all power cords and cables away from cutting area. Power cords or cables may be hidden in hedges or bushes and can be accidentally cut or damaged by the line or cutter.
  • Keep all parts of the body away from the moving trimmer cutter or line. Do not clear material from the machine until it has been disconnected from the power source. The moving trimmer cutter or line may result in serious personal injury.
  • Carry the machine with the machine switched off and away from your body. Proper handling of the machine will reduce the likelihood of accidental contact with a moving trimmer cutter or line.
  • Only use replacement cutting heads and trimmer cutters or lines specified by the manufacturer. Do not replace the trimmer cutters or lines with metal wires or blades. Incorrect replacement parts may cause loss of control, breakage and injury.

SYMBOLS ON THE PRODUCT
Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.

GRASS TRIMMER, BRUSH CUTTER AND BRUSH SAW SAFETY WARNINGS

  • Do not use the machine in bad weather conditions, especially when there is a risk of lightning. This decreases the risk of being struck by lightning.
  • Thoroughly inspect the area for wildlife where the machine is to be used. Wildlife may be injured by the machine during operation.
  • Thoroughly inspect the area where the machine is to be used and remove all stones, sticks, wires, bones, and other foreign objects. Thrown objects can cause personal injury.
  • Before using the machine, always visually inspect to see that the cutter or blade and the cutter or blade assembly are not damaged. Damaged parts increase the risk of injury.
  • Follow instructions for changing accessories. Improperly tightened blade securing nuts or bolts may either damage the blade or result in it becoming detached.
  • Wear eye, ear, head and hand protection. Adequate protective equipment will reduce personal injury by flying debris or accidental contact with the cutting line or blade.
  • While operating the machine, always wear non-slip and protective footwear. Do not operate the machine when barefoot or wearing open sandals. This reduces the chance of injury to the feet from contact with the moving cutters or lines.
  • While operating the machine, always wear long trousers. Exposed skin increases the likelihood of injury from thrown objects.
  • Keep bystanders away while operating the machine. Thrown debris can result in serious personal injury.
  • Always use two hands when operating the machine. Holding the machine with both hands will avoid loss of control.
  • Hold the machine by the insulated gripping surfaces only, because the cutting line or blade may contact hidden wiring. Cutting line or blades contacting a “live” wire may make exposed metal parts of the machine “live” and could give the operator an electric shock.
  • Always keep proper footing and operate the machine only when standing on the ground. Slippery or unstable surfaces may cause a loss of balance or control of the machine.
  • Do not operate the machine on excessively steep slopes. This reduces the risk of loss of control,slipping and falling which may result in personal injury.
  • When working on slopes, always be sure of your footing, always work across the face of slopes, never up or down and exercise extreme caution when changing direction. This reduces the risk of loss of control, slipping and falling which may result in personal injury.
  • Keep all parts of the body away from the cutter, line or blade when the machine is operating. Before you start the machine, make sure the cutter, line or blade is not contacting anything. A moment of inattention while operating the machine may result in injury to yourself or others.
  • Do not operate the machine above waist height. This helps prevent unintended cutter or blade contact and enables better control of the machine in unexpected situations.
  • Maintain control of the machine and do not touch cutters, lines or blades and other hazardous moving parts while they are still in motion. This reduces the risk of injury from moving parts.
  • Carry the machine with the machine switched off and away from your body. Proper handling of the machine will reduce the likelihood of accidental contact with a moving cutter, line or blade.
  • Only use replacement cutters, lines, cutting heads and blades specified by the manufacturer. Incorrect replacement parts may increase the risk of breakage and injury.
  • When clearing jammed material or servicing the machine, make sure the switch is off and the battery pack is removed. Unexpected starting of the machine while clearing jammed material or servicing may result in serious personal injury.

RISK LEVELS
The following signal words and meanings are intended to explain the levels of risk associated with this product.

SYM- BOL SIGNAL MEANING
DANGER Indicates an imminent- ly hazardous situation, which, if not

avoided, will result in death or serious injury.
| WARNING| Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
| CAUTION| Indicates a potentially hazardous situation,

which, if not avoided, may result in minor or moderate injury.

| CAUTION| (Without Safety Alert Symbol) Indicates a situation that may result in property damage.

SERVICE

Servicing requires extreme care and knowledge and must be performed only by a qualified service technician. For service we suggest you return the machine to your nearest AUTHORIZED SERVICE CENTER for repair. Use only identical manufacturer’s replacement parts and accessories.

ENVIRONMENTALLY SAFE BATTERY DISPOSAL

The toxic and corrosive materials below are in the batteries used in this machine: Lithium-ion, a toxic material.

WARNING
Discard all toxic materials in a specified manner to prevent contamination of the environment. Before discarding a damaged or worn-out Lithium-ion battery, contact your local waste disposal agency, or the local Environmental Protection Agency for information and specific instructions. Take the batteries to a local recycling and/or disposal center, certified for Lithium- ion disposal.

WARNING
If the battery pack cracks or breaks, with or without leaks, do not recharge it and do not use. Discard it and replace with a new battery pack. DO NOT TRY TO REPAIR IT! To prevent injury and risk of fire, explosion, or electric shock, and to avoid damage to the environment:

  • Cover the terminals of the battery with heavy-duty adhesive tape.
  • DO NOT try to remove or destroy any of the battery pack components.
  • DO NOT try to open the battery pack.
  • If a leak develops, the released electrolytes are corrosive and toxic. DO NOT get the solution in the eyes or on skin, and do not swallow it.
  • DO NOT put these batteries in your regular household trash.
  • DO NOT incinerate.
  • DO NOT put them where they will become part of any waste landfill or municipal solid waste stream.
  • Take them to a certified recycling or disposal center.

PROPOSITION 65
WARNING
This product contains a chemical known to the state of California to cause cancer, birth defects or other reproductive harm. Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

  • Lead from lead-based paints;
  • Crystalline silica from bricks and cement and other masonry products;
  • Arsenic and chromium from chemically treated lumber.

Your risk of exposure to these chemicals varies depending on how often you do this type of work. To reduce your exposure to these chemicals, work in a well- ventilated area, and work with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

INSTALLATION

WARNING

  • Remove the battery pack from the machine before installation.
  • Do not use accessories that are not recommended for this machine.

UNPACK THE MACHINE

WARNING

  • Make sure that you correctly assemble the machine before use.
  • If parts of the machine are damaged, do not use the machine.
  • If parts are missing, do not operate the machine.
  • If parts are damaged or missing, contact the service center.
  1. Open the package.
  2. Read the documentation provided in the box.
  3. Remove all the unassembled parts from the box.
  4. Remove the machine from the box.
  5. Discard the box and packing material in compliance with local regulations.

WARNING

  • For your personal safety, do not insert battery before the tool is assembled completely.

ATTACH THE GUARD
WARNING

  • Do not touch the cut-off blade.
  1. Remove the screws from the trimmer head with a Phillips head screwdriver (not included).
  2. Put the guard onto the trimmer head.
  3. Align the screw holes on the guard with the screw holes on the trimmer head.
  4. Tighten the screws.

ASSEMBLE THE SHAFT

  1. Loosen the screw on the coupler.

  2. Push in the release button (1) on the lower shaft.

  3. Align the release button with the positioning hole (2) and slide the two shafts together.

  4. Turn the lower shaft until the button locks into the positioning hole. NOTE
    The release button must be fixed in the positioning hole. Using the wrong hole could lead to personal injury, or damage to the unit.

  5. Tighten the screw with the hex wrench.

ATTACH THE AUXILIARY HANDLE

  1. Remove the knob (1) from the handle.
  2. Attach the auxiliary handle and lower clamp (2) on the shaft.
  3. Set the auxiliary handle in the comfortable position.
  4. Put the bolt (3) through the holes.
  5. Tighten the auxiliary handle with the knob.

INSTALL THE BATTERY PACK

WARNING

  • If the battery pack or charger is damaged, replace the battery pack or the charger.
  • Stop the machine and wait until the motor stops before you install or remove the battery pack.
  • Read and understand the instructions in the battery and charger manual.
  1. Align the ribs on the battery pack with the grooves in the battery compartment.
  2. Push the battery pack into the battery compartment until the battery pack locks into place.
  3. When you hear a click, the battery pack is installed.

REMOVE THE BATTERY PACK

  1. Push and hold the battery release button (1).
  2. Remove the battery pack from the machine.

OPERATION

IMPORTANT

  • Before you operate the machine, read and understand the safety regulations and the operation instructions.

WARNING

  • Be careful when you operate the machine and always observe your surroundings before operating tool.

START THE MACHINE

  1. Push the lock-out lever (2) and pull the trigger (1).
  2. Push the speed switch (3) to the desired operating speed. Push the speed switch to position A for low speed or position B for high speed.

STOP THE MACHINE
Release the trigger to stop the machine.

ADJUST THE LENGTH OF THE CUTTING LINE
While you operate the machine, the cutting line gets worn and shorter. You can adjust the length of the cutting line.

  1. Hit the trimmer head against the ground while you operate the machine.
  2. Line is automatically released and the cut-off  blade cuts the excess length.

ADJUST THE CUTTING DIAMETER
NOTE
The machine is set at a 17″ (43.18cm) cutting diameter. You can adjust to a 15″ (38.10cm) cutting diameter.
Set the cutting diameter to 15″ (38.10 cm) for greater runtime and 17″ (43.18 cm)for a larger cutting area.

  1. Remove the battery pack.
  2. Remove the blade screws from the cut-off blade.
  3. Turn the cut-off blade 180°.
  4. Tighten the blade screws.

OPERATION TIPS
WARNING

  • Keep clearance between the body and the machine.
  • Do not operate the machine without guard in place.

Do these tips when you use the machine

  • Keep a firm hold both hands on the machine while you operate the machine.
  • Cut tall grass from the top down.

If grass winds around the trimmer head:

  • Remove the battery pack.
  • Remove the grass.

CUTTING TIPS

  • Tilt the machine toward the area to be cut. Use the tip of the cutting line to cut grass.
  • Move the machine from right to left to prevent thrown debris from hitting the operator.
  • Do not cut in the danger area.
  • Do not force the trimmer head into uncut grass.
  • Wire and picket fences cause cutting line wear and breakage. Stone and brick walls, curbs, and wood can wear the cutting line quickly.

LINE CUT-OFF BLADE
This trimmer is equipped with a line cut-off blade on the guard. The line cut-off blade continuously trims the line to ensure a consistent and efficient cut diameter. Advance line whenever you hear the engine running faster than normal, or when trimming efficiency diminishes. This will maintain best performance and keep line long enough to advance properly.

MAINTENANCE

IMPORTANT

  • Read and understand the safety regulations and the maintenance instructions before you clean, repair or do the maintenance work on the machine.

IMPORTANT

  • Make sure that all nuts, bolts and screws are tight. Check regularly that the handles are firmly mounted.
  • Use only the replacement parts and accessories of the initial manufacturer.

GENERAL INFORMATION
IMPORTANT

  • Only your dealer or approved service center can do the maintenance that is not given in this manual.

Before the maintenance operations:

  • Stop the machine.
  • Remove the battery pack.
  • Cool the motor.
  • Use correct clothing, protective gloves, and safety glasses.

CLEAN THE MACHINE

  • Clean the machine after each use with a moist cloth dipped in neutral detergent.
  • Do not use aggressive detergents or solvents like “glass cleaner” to clean the plastic parts or handles.
  • Keep the trimmer head free from grass, leaves, or excessive grease.
  • Keep the air vents clean and free of debris to avoid overheating and damage of the motor.
  • Do not spray water onto the motor and electrical components.

REMOVE EXCESS LINE

  1. Push the tabs (5) on the sides of the trimmer head at the same time.
  2. Pull and remove the spool cover (1) and spool (2).
  3. Remove any remaining line.
  4. Clean dirt and debris from all parts. Replace spool if it is worn or damaged.
  5. Align the spool tabs (5) with the tab openings (4) in the base of the spool (3).
  6. Push the spool cover until it clicks into position.

REPLACE THE SPOOL
NOTE
If any parts of the spool retainer assembly are damaged or worn, replace the damaged part and reassemble them as following showing

  1. Disassemble the trimmer head. Pull and remove the spool cover (5).
  2. Clean dirt and debris from all parts.
  3. Loosen the screws (1). Remove the spool (2), slot cover (3), location housing (4) from the spool assembly.
  4. Replace with a new spool.
  5. Insert the location housing and slot cover onto the spool cover, and then put the spool onto the slot cover to the desired position.
  6. Tighten with the screws.

INSTALL THE CUTTING LINE
NOTE
Do not put more than 18 feet of cutting line in at a time.

  1. Remove the remaining cutting line on the spool.
  2. Line up the slots on the spool cover with the slots
  3. on the trimmer head.
  4. Insert the line into the mounting hole, which is located inside the eyelet (2). Push the cutting line until it exits the opposite hole.
  5. Pull the cutting line through until there is an equal quantity of cutting line on each side.
  6. Rotate the spool cover clockwise in the arrow direction to wind the cutting line into the trimmer head. Keep approximately 5 in of cutting line above out of each side of the trimmer head.

TRANSPORTATION AND STORAGE

MOVE THE MACHINE
When you move the machine, you must:

  • Wear gloves.
  • Stop the machine.
  • Remove the battery pack and charge it.
  • Assemble the blade guard.

STORE THE MACHINE

  • Remove the battery pack from the machine.
  • Make sure that children cannot come near the machine.
  • Keep the machine away from corrosive agents such as garden chemicals and de-icing salts.
  • Secure the machine during transportion to prevent damage or injury. Clean and examine the machine for any damage.

TROUBLESHOOTING

Problem Possible Cause Solution
The ma- chine does not start when the trigger is pushed. No electrical
contact be- tween the ma- chine and the battery pack. 1. Remove battery

pack.


2. Check contact and install the battery pack again.

The battery pack is deple- ted.| Charge the battery pack.
The lock-out button and trig- ger are not pushed at the same time.| 1. Pull the lock-out button and hold it.


2. Pull the trigger to start the machine.

Problem Possible Cause Solution
The ma- chine stops when you are cut- ting. The guard is not attached to the
machine. Remove the battery pack and attach the guard to the machine.
Heavy cutting line is used. Use only with the nylon cutting line of 1.063″

(2.7mm) diam- eter.
The grass winds around the motor shaft or the trimmer head.| 1. Stop the machine.


2. Remove the battery pack.


3. Remove the grass from the motor shaft and trimmer head.

The motor is overloaded.| 1. Remove the trim- mer head from the grass.


2. The motor will re- cover to work as soon as the load is re- moved.


3. When you cut, move the trimmer head in and out of the grass to be cut and remove no more than 20 cm in pass.

The battery pack or ma- chine is too hot.| 1. Cool the battery pack until its function returns to normal.


2. Cool the machine for approximately 10 minutes.

The battery pack is discon- nected from the tool.| Install the battery pack again.
The battery pack is deple- ted.| Charge the battery pack.
Problem| Possible Cause| Solution
---|---|---
The line does not extend.| Lines are wel- ded to them- selves.| Lubricate with silicone spray.
Not enough line on the spool.| Install more line.
Lines are worn and too short.| Extend the line.
Lines are tan- gled on the spool.| 1. Remove the lines from the spool.


2. Wind the lines.

The line keeps breaking.| The machine is used incorrectly.| 1. Cut with the tip of the line, avoid stones, walls and other hard objects.


2. Advance the cutting line regularly to keep full cutting width.

The grass winds around the trim- mer head and motor housing.| Cut tall grass at ground level.| 1. Cut tall grass from the top down.


2. Remove no more than 20 cm in each pass to prevent wrap- ping.

The line does not cut well.| The cut-off blade becomes dull.| Sharpen the cut- off blade with a file or re- place it.
Vibration increases obviously.| The line is worn down at one side and not ex- tended in time.| Make sure that the line on both sides is equal. Extend the line.

TECHNICAL DATA

Type Cordless, battery pow- ered
Motor 40V
No load speed 5500/4500 ±10% RPM
Cutting line diameter 1.063″ (2.7mm)
Cutting path diameter 15″/17″ (38.10cm /

43.18cm)

Feed Type| Bump Feed
Weight (without battery pack)| 7.05 lbs. (3.2kg)
Battery model| BAF749 and other BAF series
Charger model| CAF820 and other CAF series

The recommended ambient temperature range:

Item Temperature
String trimmer storage temperature range 32°F (0°C) – 113°F (45°C)
String trimmer operation temperature range 32°F (0°C) – 113°F (45°C)
Battery charging temper- ature range 39°F (4°C) – 104°F (40°C)
Charger operation tem- perature range 39°F (4°C) – 104°F (40°C)
Battery storage tempera- ture range 32°F (0°C) – 113°F (45°C)
Battery discharging tem- perature range 32°F (0°C) – 113°F (45°C)

LIMITED WARRANTY

Greenworks hereby warranties this product, to the original purchaser with proof of purchase, for three (3) years against defects in materials, parts or workmanship. Greenworks, at its own discretion, will repair or replace any parts found to be defective, through normal use, free of charge to the customer. This warranty is valid only for units that have been used for personal use that have not been purchased or rented for industrial/commercial use, and that have been maintained per the instructions in the owners’ manual supplied with the product when new.
ITEMS NOT COVERED BY WARRANTY:

  1. Any part that has become inoperative due to misuse, commercial use, abuse, neglect, accident, improper maintenance, or alteration; or
  2. The  unit, if it has not been operated and/or maintained under the owner’s manual; or
  3. Normal wear;
  4. Routine maintenance items such as lubricants, blade sharpening;
  5. Normal deterioration of the exterior finish due to use or exposure.

HELPLINE:
Warranty service is available by calling our toll-free helpline at 1-888-909-6757.

TRANSPORTATION CHARGES:
Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser. It is the purchaser’s responsibility to pay transportation charges for any part submitted for replacement under this warranty unless such return is requested in writing by Greenworks.

USA address:
Greenworks Tools
P.O. Box 1238, Mooresville, NC 28115

Ca nadian address:
Greenworks Tools Canada, Inc.
P.O. Box 93095, Newmarket, Ontario, L3Y 8K3

Mexico address:
TECNOLOGIA CAMPO Y JARDIN S.A. DE C.V.
ADMINISTRADORES No. 5336 A, COL. ARCOS DE GUADALUPE, ZAPOPAN , JALISCO , C.P. 45037

EXPLODED VIEW

No

.

| Part No.| Qty| Description| No

.

| Part No.| Qt y| Description
---|---|---|---|---|---|---|---
1| R0101148-00| 1| Auxiliary handle assem- bly| 4| R0204879-00| 1| Guard assembly
2| R0201886-00| 1| Coupler bolt| 5| R0204880-00| 1| Trimmer head assembly
3| R0201770-00| 1| Hex wrench| | | |

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References

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