HYECHO MJ7902 Cordless Hedge Trimmer and Grass Shear Instruction Manual

MJ7902 Cordless Hedge Trimmer and Grass Shear
Instruction Manual

SPECIFICATIONS

• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications and battery pack may differ from country to country.

Symbols
The following show the symbols used for the equipment. Be sure that you understand their meaning before use.

| Read instruction manual.
---|---
| Keep bystanders away.
| Do not expose to moisture.
| Danger – keep hands and feet away from blade.
| Always wear eye protection with side shields marked to comply with ANSI Z87.1 when operating this equipment.
| Danger; be aware of thrown objects.
| Cutting means continues to run after the motor is switched off.
| Take particular care and attention.
| Remove the disabling device before maintenance.

Intended use
Cordless Grass Shear
The tool is intended for cutting lawn edges or sprouts.
Cordless Hedge Trimmer
The tool is intended for trimming hedges.
Noise
Cordless Grass Shear

• Sound pressure level (LpA) : 74.8 dB(A)
• Sound power level (L) : 86.5 dB (A)
• Uncertainty (K) : 3 dB(A)

Cordless Hedge Trimmer

• Sound pressure level (LpA) : 76.0 dB (A)
• Sound power level (LWA) : 87.0 dB (A)
• Uncertainty (K) : 3 dB (A)

WARNING: Wear ear protection.
Vibration
Cordless Grass Shear
Vibration emission (ah) : < 2.5 m/s²
Cordless Hedge Trimmer
Vibration emission (ah) : < 2.5 m/s²
NOTE: The declared vibration emission value has been measured in accordance with the standard test method and may be used for comparing one tool with another.
NOTE: The declared vibration emission value may also be used in a preliminary assessment of exposure.
WARNING: The vibration emission during actual use of the power tool can differ from the declared emission value depending on the ways in which the tool is used.
WARNING: Be sure to identify safety measures to protect the operator that are based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

SAFETY WARNINGS

General power tool safety warnings
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

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

Electrical Safety

1. 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.
2. 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.
3. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
4. 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.
5. 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.
6.  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

1. 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.

2. 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.

3. Prevent unintentional starting. Ensure the switch is in the off-position before connecting to 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.

4. 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.

5. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

6. Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewellery 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.

7. Use of dust collection can reduce dust-related hazards.

8. Do not let familiarity gained from 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

1. 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.
2. 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.
3. Disconnect the plug from the power source and/or the battery pack 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.
4. 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.
5. Maintain power tools. 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.
6.  Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits etc. in accordance with 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.
8. 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

1. 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.
2. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
3. 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.
4. 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.
5. 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.
6. Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130 °C may cause explosion.
7. 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

1. 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.
2. Follow instruction for lubricating and changing accessories.
3. Keep handles dry, clean and free from oil and grease.
4. Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Cordless Grass Shear safety warnings

1. To ensure correct operation, user has to read this instruction manual to make himself familiar with the handling of the equipment. Users insufficiently informed will risk danger to themselves as well as others due to improper handling.
2. Never allow children, persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge or people unfamiliar with these instructions to use the machine, local regulations may restrict the age of the operator.
3. Use the equipment with the utmost care and attention.
4. Operate the equipment only if you are in good physical condition. Perform all work calmly and carefully. Use common sense and keep in mind that the operator or user is responsible for accidents or hazards occurring to other people or their property.
5. Never operate the machine while people, especially children, or pets are nearby.
6. The motor is to be switched off immediately in case that the equipment shows any problem or abnormal sign.
7. Avoid using the machine in bad weather conditions especially when there is a risk of lightning.
8. Wear eye protection and stout shoes at all times while operating the machine.
9. Always wear substantial footwear and long trousers while operating the machine.
10. Make sure that there are no children or other people nearby, also pay attention to any animals in the working vicinity. Otherwise stop using the equipment.
11. Before use always check that the equipment is safe for operation. Check the security of the cutting tool and the guard and the switch trigger/lever for easy and proper action. Check for clean and dry handles and test the function of the start/stop.
12. Switch on the motor only when the hands and feet are away from the cutting tool.
13. Before starting make sure that the cutting tool has no contact with any objects.
14. The condition of the equipment, in particular of the cutting tool of the protective devices must be checked before commencing work.
15. Turn off the motor before carrying out maintenance or replacing cutting tools or cleaning the equipment or cutting tool.
16. When not in use, store the equipment indoors in dry and high or locked-up place – out of the reach of children. Clean and maintain before storage.

Cordless Hedge Trimmer safety warnings

1. Keep all parts of the body away from the cutter blade. Do not remove cut material or hold material to be cut when blades are moving. Make sure the switch is off when clearing jammed material. A moment of inattention while operating the hedge trimmer may result in serious personal injury.
2. Carry the hedge trimmer by the handle with the cutter blade stopped. When transporting or storing the hedge trimmer always fit the cutting device cover. Proper handling of the hedge trimmer will reduce possible personal injury from the cutter blades.
3. When transporting or storing the hedge trimmer, always fit the blade cover. Proper handling of the hedge trimmer will decrease the risk of personal injury from the blades.
4. 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 by the blade.
5. Do not use the hedge trimmer in bad weather conditions, especially when there is a risk of lightning. This decreases the risk of being struck by lightning.
6. Hold the power tool by insulated gripping surfaces only, because the cutter blade may contact hidden wiring. Cutter blades contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
7. Do not use the hedge trimmer in the rain or in wet or very damp conditions. The electric motor is not waterproof.
8. First-time users should have an experienced hedge trimmer user show them how to use the trimmer.
9. The hedge trimmer must not be used by children or young persons under 18 years of age. Young persons over 16 years of age may be exempted from this restriction if they are undergoing training under the supervision of an expert.
10. Use the hedge trimmer only if you are in good physical condition. If you are tired, your attention will be reduced. Be especially careful at the end of a working day. Perform all work calmly and carefully. The user is responsible for all damages to third parties.
11. Never use the trimmer when under the influence of alcohol, drugs or medication.
12. Work gloves of stout leather are part of the basic equipment of the hedge trimmer and must always be worn when working with it. Also wear sturdy shoes with anti-skid soles.
13. Before starting work check to make sure that the trimmer is in good and safe working order. Ensure guards are fitted properly. The hedge trimmer must not be used unless fully assembled.
14. Make sure you have a secure footing before starting operation.
15. Hold the tool firmly when using the tool.
16. Do not operate the tool at no-load unnecessarily.
17. Immediately switch off the motor and disconnect the safety lock if the cutter should come into contact with a fence or other hard object. Check the cutter for damage, and if damaged repair immediately.
18. Before checking the cutter, taking care of faults, or removing material caught in the cutter, always switch off the trimmer and disconnect the safety lock.
19. Switch off the trimmer and disconnect the safety lock before doing any maintenance work.
20. Store the hedge trimmer with the cover on, in a dry room. Keep it out of reach of children. Never store the trimmer outdoors.

SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.
Important safety instructions for built-in battery4.

1. Before using built-in battery, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.

2. Do not disassemble built-in battery.

3. If operating time has become excessively shorter, stop operating immediately. It may result in a risk of overheating, possible burns and even an explosion.

4. If electrolyte gets into your eyes, rinse them out with clear water and seek medical attention right away. It may result in loss of your eyesight.

5. Do not short the built-in battery:
   (1) Do not touch the terminals with any conductive material.
   (2) Avoid storing built-in battery in a container with other metal objects such as nails, coins, etc.
   (3) Do not expose built-in battery to water or rain.
   A battery short can cause a large current flow, overheating, possible burns and even a breakdown.

6. Do not store the tool and built-in battery in locations where the temperature may reach or exceed 50°C(122°F).

7. Do not incinerate the built-in battery even if it is severely damaged or is completely worn out. The built-in battery can explode in a fire.

8. Be careful not to drop or strike battery.

9. Do not use a damaged battery.

10. The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements.
    For commercial transports e.g. by third parties, forwarding agents, special requirement on packaging and labeling must be observed.
    For preparation of the item being shipped, consulting an expert for hazardous material is required. Please also observe possibly more detailed national regulations.
    Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging.

11. Follow your local regulations relating to disposal of battery.

SAVE THESE INSTRUCTIONS.
Tips for maintaining maximum battery life

1. Charge the built-in battery before completely discharged. Always stop tool operation and charge the built-in battery when you notice less tool power.
2. Never recharge a fully charged built-in battery. Overcharging shortens the battery service life.
3. Charge the built-in battery with room temperature at 10°C- 40°C(50°F- 104°F). Let a hot built-in battery cool down before charging it.
4. Charge the built-in battery if you do not use it for a long period (more than six months).

PARTS DESCRIPTION

1. Hedge trimmer cutter blade cover
2. Hedge trimmer cutter blade
3. Grass cutter blade cover
4. Grass cutter blade
5. Indicator lamp
6. Undercover
7. Lock-off button
8. Switch trigger
9. Soft grip handle
10. Safety lock
11. Charging socket

FUNCTIONAL DESCRIPTION

CAUTION: Always be sure that the tool is switched off and disconnect the safety lock before adjusting or checking function on the tool.
Charging the built-in battery
CAUTION: Always disconnect the charging plug from the tool after charging.
Connect the type-C cable to the AC adapter, and then plug the AC adapter into the mains supply. Connect the other end of the type-C cable to the tool charging socket.
NOTE: The AC adapter is not included in the accessories, only use a charger with an output voltage of 5V to charge the tool.Before the first use, be sure to charge the built-in battery. It takes approximately 2 to 3 hours to fully charge the battery. The charging time varies depending on the usage conditions and remaining battery capacity.
Unplug the type-C cable from the tool.
NOTE: While charging, the built-in battery and AC adapter may become warm. This is normal and will continue until the built-in battery is fully charged and the AC adapter has been disconnected from the mains supply.
Tool / battery protection system
The tool is equipped with a tool/battery protection system. This system automatically cuts off power to the motor to extend tool and battery life. The tool will automatically stop during operation if the tool is placed under one of the following conditions:
Overload protection
When the battery is operated in a manner that causes it to draw an abnormally high current, the tool automatically stops. In this situation, turn the tool off and stop the application that caused the tool to become overloaded. Then turn the tool on to restart.
Overheat protection
When the tool or battery is overheated, the tool stops automatically. In this case, let the tool and battery cool before turning the tool on again.
NOTE: In high temperature environment, the overheat protection likely to work and the tool stops automatically.
Over discharge protection
When the battery capacity is not enough, the tool stops automatically. In this case, charge the battery.
Switch action
WARNING: Before insert the safety lock into the tool, always check to see if the switch trigger actuates properly and returns to the “OFF” position when released.
WARNING: For your safety, this tool is equipped with the lock-off button and safety lock which prevents the tool from unintended starting. Never use the tool if it starts when you pull the switch trigger without pressing the lock-off button or insert the safety lock. Please contact us immediately for repair.
WARNING: Never disable the lock function or tape down the lock-off button.
NOTICE: Do not pull the switch trigger forcibly without pressing the lock-off button. The switch may break. To start the tool, first insert the safety lock, then push the lock-off button forward and pull the switch trigger.Release the switch trigger to stop. Indicator lamp The indicator lamp will light up while charging and working：

lights flash alternately： Overheat protection

ASSEMBLY

CAUTION: Always be sure that the tool is switched off and disconnect the safety lock before adjusting or checking function on the tool.
CAUTION: When replacing the shear blades, always wear gloves and attach the blade cover so that your hands and face do not directly contact the blades.
NOTICE: When replacing the shear blades, do not wipe off grease from the gear and blade. Installing or removing the blade cover
CAUTION: Be careful not to touch the blades when installing or removing the blade cover. To remove the blade cover, open the blade cover upward, and then slide it outward. To install the blade cover, perform the steps in reverse. Installing or removing the shear blades
CAUTION: Attach the blade cover before removing or installing the shear blades.
NOTICE: The operation of installing or removing the blades of the grass shear and the hedge trimmer is the same. The following operations take the grass shear as an example.
Installing the shear blades

1. Prepare the shear blades, and tool body.

2. Place the tool upside down pressing the lock lever, push the undercover outward until the undercover pushes out the tool.

3. Turn the shear blades upside down so that the geared side is facing down align the shear blades pin with the gear center hole of the tool body and align the shear blades hole with the tool body pin, and then insert the shear blades into the tool body.1.Shear blades
   2.Shear blades pin
   3.Gear center hole
   4.Shear blades hole
   5.Tool body pin

4.  Align the tongue on the undercover with the groove in the tool and slip it into place. Insert it all the way until it locks in place with a little click. CAUTION: Never use the tool without installing the undercover.
   Remove the blade cover, and then turn on the tool to check that it works properly.

5. NOTICE: If the shear blades do not operate properly ,remove the blades and install them again.

Removing the shear blades

1. Place the tool upside down.
2. While pressing the lock lever, push the undercover outward until the undercover pushes out the tool.
3. Remove the undercover, shear blades.

OPERATION

WARNING: Before shearing, clear away sticks and stones from the shearing area. Furthermore, clear away any weeds from the shearing area in advance.
WARNING: Keep hands away from blades.
CAUTION: Avoid operating the tool in very hot weather as much as practicable. When operating the tool, be careful of your physical condition.
Shearing (for grass shear)
Turn the tool and hold it so that the bottom of the tool rests on the ground. Gently move the tool forward.When trimming around curbs, fences or trees, move the tool along them. Be careful that the blades do not come into contact with them. NOTICE: Do not use the tool in a way that causes the motor to stop or to rotate extremely slowly.
NOTICE: Do not attempt to cut thick branches.
NOTICE: Do not allow the shear blades to contact the ground during operation. The blades will be dulled, causing poor performance.
NOTICE: Do not trim the wet grass or foliage of small trees.
NOTICE: Do not try to cut long grass all at once. Instead, cut the lawn in steps. Leave a day or two between cuts until the lawn becomes evenly short. Otherwise may cause the grass to die.
Trimming (for hedge trimmer)
CAUTION: Be careful not to accidentally contact a metal fence or other hard objects while trimming. The blades may break and cause an injury.
CAUTION: Be careful not to allow the shear blades to contact the ground. The tool may recoil and cause an injury.
CAUTION: Overreaching with a hedge trimmer, particularly from a ladder, is extremely dangerous. Do not work while standing on anything wobbly or infirm.
NOTICE: Do not attempt to cut branches thicker than 5 mm in diameter with the tool. Cut branches to the desired height using branch cutters before using the tool.
NOTICE: Do not cut down dead trees or similar hard objects. Doing so may damage the tool.
NOTICE: Do not trim the grass or weeds while using the shear blades. The blades may become tangled in the grass or weeds.
Hold the tool with one hand, pull the switch trigger while pressing the lock- off button, and then move it forward.For basic operation, tilt the blades toward the trimming direction and move it calmly and slowly at the speed rate of 3 to 4 seconds per meter.To cut a hedge side evenly, cut from the bottom to top.
When trimming to make a round shape (trimming boxwood or rhododendron, etc.), trim from the root to the top for a beautiful finish.

MAINTENANCE

CAUTION: Always be sure that the tool is switched off and the safety lock is removed before attempting to perform inspection or maintenance.
CAUTION: Always wear gloves when performing any inspection or maintenance.
Cleaning the tool
Clean the tool by wiping off dust with a dry cloth or one dipped in soapy water and wrung out.
NOTICE: Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.
Blade maintenance
Before the operation or once per hour during operation, apply low-viscosity oil (machine oil, or spray-type lubricating oil) to the blades.After operation, remove dust from both sides of the blades with a wired brush, wipe it off with a cloth and then apply low-viscosity oil (machine oil, or spray-type lubricating oil) to the blades. NOTICE: Do not wash the blades in water. Doing so may cause rust or damage to the tool.
NOTICE: Dirt and corrosion cause excessive blade friction and shorten the operating time per battery charge.
Storage
Attach the blade cover to the shear blades so that the blades are not exposed. Store the tool out of the reach of children. Store the tool in a place not exposed to moisture or rain.

ACCESSORY INFORMATION

CAUTION: These accessories or attachments are recommended for use with your tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or attachment for its stated purpose.

1pcs grass cutter blade cover
1pcs hedge trimmer cutter blade
1pcs hedge trimmer cutter blade cover

NOTE: We recommend that you purchase your accessories from the same store that sold you the tool. Refer to the accessory packaging for further details. Store personnel can assist you and offer advice.

– HYECHO Gardening Artist in Your Life –
If any problems, please contact our aftersales email: support@hyechotools.com
Manufacturer Zhejiang Mingle Tool Industrial Co., Ltd.
Addo. 188, Finding North Road, Jinzhou District, Ningbo, 315100,
Zhejiang, China.
E-mail: support@hyechotools.com
British Representative:
CET Product Service Ltd.
Beacon House Stokenchurch Business Park,
Isotone Rd, Stokenchurch High Wycombe HP14 3FE UK.
Tel:+447419325266
E-mail:info@cetproduct.com
Made in China

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