GreenWorks 21342 User manual

Read all safety rules and instructions carefully before operating this tool.
Owne
www.greenworkstools.com
r’s Manual
TOLL-FREE HELPLINE: 1-888-90WORKS (888.909.6757)
24V LITHIUM-ION CORDLESS STRING TRIMMER
21342

2
CONTENTS
Contents .............................................................................................................................. 2
.......................................................................................................... 2
General safety rules .........................................................................................................3-5
Symbols ............................................................................................................................6-7
Know your string trimmer ..................................................................................................... 8
Assembly instruction....................................................................................................... 9-12
Operation...................................................................................................................... 13-16
Maintenance............................................................................................................................17
Environmentally safe battery disposal...........................................................................................18
Troubleshooting............................................................................................................................19
Warranty ............................................................................................................................ 20
Exploded View .................................................................................................................... 21
Parts List ............................................................................................................................ 22
PRODUCT SPECIFICATIONS
24V CORDLESS STRING TRIMMER EDGER
Type............................................................................................. Cordless, battery-powered
Battery...........................................................................................................24 V Lithium-Ion
Speed...............................................................................................8000 / 9000 RPM (no load)
Cutting Path.....................................................................................10'' / 12" (254mm / 305 mm)
Line diameter................................................................................................. 0.065" (1.65 mm)
Run Time.................................................................................................... approx. 40 minutes

3
GENERAL SAFETY RULES
W A R N I N G
Read and understand all instructions before using this product. Failure to follow all
•
liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes.
•Do not allow children or untrained individuals to use this unit.
•Don’t expose power tools to rain or wet conditions. Water entering a power tool will increase
the risk of electric shock.
•Do not handle plug or tool with wet hands.
•Never allow children to operate the equipment. Never allow adults to operate the equipment
without proper instruction.
•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 operation is dusty.
•Wear eye protection when operating this product. Secure long hair above shoulder level to
prevent entanglement in moving parts.
•Use extra care when cleaning on stairs.
•Do not expose to rain, store indoors.
•Do not operate in poor lighting.
•Keep all parts of your body away from any moving part.
•
•Wear heavy long pants, boots, and gloves. Avoid loose garments or jewelry that could get
caught in moving parts of the machine or its motor.
•Do not force tool. Use the correct tool for your application. The correct tool will do the job
better and safer at the rate for which it is designed.
•Do not operate the equipment while barefoot or when wearing sandals or similar lightweight
footwear. Wear protective footwear that will protect your feet and improve your footing on
slippery surfaces.
•Secure long hair so it is above shoulder level to prevent entanglement in any moving parts.
•
•Do not allow to be used as a toy. Close attention is necessary when used by or near children.
•Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with the
switch is dangerous and must be repaired.
•Keep all bystanders, children, and pets at least 50 ft. away.
•
medication.
•Do not operate in poor lighting.

4
GENERAL SAFETY RULES
•Keep all parts of your body away from any moving parts and all hot surfaces of the unit.
•Do not put any object into openings. Do not use with any opening blocked; keep openings free
•Check the work area before each use. Remove all objects such as rocks, broken glass, nails,
wire, or string which can be thrown or become entangled in the machine.
•Use only identical manufacturer’s replacement parts and accessories. Use of any other parts
may create a hazard or cause product damage.
•Do not charge battery tool in rain, or damp or wet location. Following this rule will reduce the
risk of electric shock.
•For household use only.
•Battery tools do not have to be plugged into an electrical outlet; therefore, they are always in
operating condition. Be aware of possible hazards when not using your battery tool or when
personal injury.
•Remove or disconnect battery before servicing, cleaning or removing material from the
gardening appliance.
•Use only Greenworks batteries.
•Store idle appliances - When not in use, string trimmer should be stored indoors in a dry,
locked place out of the reach of children.
•
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.
•
explosion and possibly injury.
•Batteries can explode in the presence of a source of ignition, such as a pilot light. To reduce
the risk of serious personal injury, never use any cordless product in the presence of open
immediately.
•Do not crush, drop or damage battery pack. Do not use a battery pack or charger that has
been dropped or received a sharp blow. A damaged battery is subject to explosion. Properly
dispose of a dropped or damaged battery immediately.
•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.
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.
•For best results, your battery tool should be charged in a location where the temperature is
more than 45°F but less than 104°F. To reduce the risk of serious personal injury, do not store
outside or in vehicles.
•Under extreme usage or temperature conditions, battery leakage may occur. If liquid comes in
contact with your skin, wash immediately with soap and water, then neutralize with lemon juice
then seek immediate medical attention. following this rule will reduce the risk of serious
personal injury.

5
•If the power supply cord is damaged, it must be replaced only by the manufacturer or by an
authorized service center to avoid risk.
•Do not point the string trimmer in the direction of people or pets.
•When not in use, string trimmer should be stored indoors in a dry, locked up place—out of the
reach of children.
•Maintain tool with care. Keep fan area clean for best and safest performance. Follow
removing the battery.
•To reduce the risk of electrical shock, do not expose to rain, do not use on wet surfaces. Store
indoors.
•Save these instructions. Refer to them frequently and use them to instruct others who may
use this power tool. If you loan someone this power tool, loan them these instructions also.
GENERAL SAFETY RULES
W A R N I N G (PROPOSITION 65)
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, and
•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
particles.
CHILD SAFETY
Tragic accidents can occur if the operator is not aware of the presence of children.
•Keep children out of the working area and under the watchful care of a responsible adult.
•Do not allow children under the age of 14 to operate this trimmer. Children who are 14
years of age and older must read and understand the operating instructions and safety
rules in this manual and must be trained and supervised by a parent.
•Stay alert, and turn the trimmer off if a child or any other person enters the working area.
•Look behind and down for small children before and while cutting backwards.
•Use extreme care when approaching blind corners, doorways, shrubs, trees, or other
objects that may obscure your view of a child who may run into the path of the trimmer.

6
SYMBOLS
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts Voltage
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watts Power
min Minutes Time
Alternating Current Type of current
Direct Current Type or a characteristic of current
Class II Construction Double-insulated construction
No Load Speed Rational speed, at no load
/min Per Minute Revolutions, strokes, surface speed, orbits etc.,
per minute
Wet Conditions Alert Do not expose to rain or use in damp locations
Read The Operator’s Manual To reduce the risk of injury user must read and
understand operator’s manual before using this
product.
Eye Protection Wear eye protection marked to comply with
ANSI Z87.1when operating this equipment.
Safety Alert Precautions that involve your safety.
Long Hair Failure to keep long hair away from the air inlet
could result in personal injury.
Loose Clothing Failure to keep loose clothing from being drawn
into air intake could result in personal injury.
Keep Bystanders Away Keep all bystanders at least 50 ft. away.
Some of the following symbols may be used on this product. Please study them and learn their
meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.

The following signal words and meanings are intended to explain the levels of risk associated
with this product.
SERVICE
service technician. For service we suggest you return the product to your nearest AUTHORIZED
SERVICE CENTER for repair. When servicing, use only identical replacement parts.
W A R N I N G
To avoid serious personal injury, do not attempt to use this product until you have read this Owner's
Manual thoroughly and understand it completely. If you do not understand the warnings and
instructions in this Owner's Manual, do not use this product. Call the Toll-free Helpline (1-888-909-
6757) for assistance. The operation of any power tool can result in foreign objects being thrown
into your eyes, which can result in severe eye damage. Before operating a power tool, always wear
safety goggles, safety glasses with side shields, or a full face shield when needed. We recommend
a Wide Vision Safety Mask for use over eyeglasses or standard safety glasses with side shields.
Always use eye protection that is marked to comply with ANSI Z87.1.
W A R N I N G
The operation of any power tool can result in foreign objects being thrown into your eyes,
which can result in severe eye damage. Before beginning power tool operation, always
wear safety goggles or safety glasses with side shields and, when needed, a full face
shield. We recommend Wide Vision Safety Mask for use over eyeglasses or standard
safety glasses with side shields. Always use eye protection which is marked to comply
with ANSI Z87.1.
SYMBOL SIGNAL MEANING
DANGER Indicates an imminently 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.
SYMBOLS
SAVE THESE INSTRUCTIONS
7

8
KNOW YOUR STRING TRIMMER
KNOW YOUR STRING TRIMMER (See Figure 1.)
The safe use of this product requires an understanding of the information on the product and in
this operator’s manual as well as a knowledge of the project you are attempting. Before use of
this product, familiarize yourself with all operating features and safety rules.
Battery pack
Switch lock out button
Auxiliary assist handle
Edger adjustment button
Edging guide wheel
Pivoting head adjustment button
Fig. 1
Single line cutting spool
Guide
Guard
Trigger switch

9
ASSEMBLY INSTRUCTION
W A R N I N G
•Replace the battery pack or charger immediately if the battery case or charger cord is
damaged.
•Always make sure the string trimmer switch is OFF before inserting or removing the
battery pack.
•Always make sure the battery pack is removed and the switch turned OFF, before
inspecting, adjusting, or maintaining any other part of the hedge trimmer.
•Read, understand, and follow the Battery Charger instructions.
GUARD (See Figure 2.)
To avoid injury, always remove the battery pack before installing the guard, changing a cutting
line, or making any adjustments.
If the guard is damaged, do not use the grass trimmer/edger until it is replaced.
NOTE: Install the protective guard before operating the grass trimmer/edger trimmer. It cannot be
removed or disassembled.
1. Remove the battery pack.
2. Invert the grass trimmer/edger to access the trimmer head.
3. Using a Phillips head screwdriver, remove the pre-installed screw (1) from the trimmer head.
4. Place the guard (2) on to the trimmer head and turn the guard 45° following the track on the
head.
5. Align the screw hole on the guard with the screw hole on the trimmer head.
6. Insert the screw into the trimmer head, fastening the guard in place.
Fig. 2
(1) DOWN
1
2

10
ASSEMBLY INSTRUCTION
AUXILIARY HANDLE (See Figure 3.)
W A R N I N G
To avoid injury, adjust the auxiliary handle for optimum control and balance. Do not overreach
when operating grass trimmer/edger. Keep proper balance atall times for better control of the tool
in unexpected situations.
CUTTIN
C
ADJUST THE CUTTING WIDTH
ONNECTING UPPER/LOWER TRIMMER SHAFTS
G LINE (See Figure 4.)
line needs replacing, insert a new spool.
To avoid injury, always remove the battery pack before installing the guard, changing a cutting
line, or making any adjustments.
With lower shaft pointing downward insert lower shaft into upper shaft and turn shaft collar
The cutting blade can be rotated 180° for change the
cutting width from 10’’ to 12’’. see right picture.
Phillips screwdriver will be used. (not supplied)
clockwise to tighten.
1. Position auxiliary handle )onto the upper portion of
the trimmer shaft by sliding over shaft.
2. Once auxiliary handle is in the desired in use position
tighten the knob until locked into position.
3. Auxiliary handle can be adjusted to a suitable positon.
To remove the spool:
1. Disconnect trimmer from the power supply.
2. Turn grass trimmer/edger over to access the spool.
3. Remove spool cover by pressing on two tabs parallel to each other on the side of the cover (2).
4. Remove the spool (1) from the spool housing (3).
REPLACEMENT SPOOL MODEL#29632
10’’
12’’
NOTE:
1
2
3
Fig.3

ASSEMBLY INSTRUCTION
11
To replace the spool:
1. Replace the spool (1) with a new pre-wound spool.
2. Insert the end of line through the opening (4) in the spool housing (3).
3. Align the tabs on the spool cover with the slots in the spool housing on the trimmer head.
4. Push down on the spool cover locking it to the spool housing.
5. To advance the line when initially installed, you must pull the line while pressing the white line
release button on the side of the spool housing (3).
2
1
3
4
Fig. 4
To refill the spool:
1. Cut a length of 1/16" (1.65 mm) nylon monofilament line (1) approximately 18’ (5.5 m) long.
2. Insert end of line into the small hole (2) to anchor the line.
3. Wind the line evenly and tightly in a clockwise direction.
4. DO NOT wind the line beyond the edge (3) of the spool.
5. Insert the line through hole (4) in the spool housing.
6. Position line spool (5) in spool housing (6).
Fig. 5
4
6
5
2
3
1

ASSEMBLY INSTRUCTION
12
Fig. 6
W A R N I N G
•Replace the battery pack or the charger immediately if the battery case or charger cord is
damaged.
• Verify that the switch is in the OFF position before inserting or removing the battery pack.
•Verify that the battery pack is removed and the switch is in the OFF position before inspecting,
adjusting, or performing maintenance on any part of the blower.
•Read, understand, and follow the instructions contained in the section entitled Charging
Procedure.
BATTERY
IMPORTANT! The battery pack is not charged when it is purchased. Before using the trimmer for
precautions, and follow the instructions in the Battery Charger section.
To remove (See Figure 6.)
1. Press the latch button (1) on the battery pack down and hold.
2.
NOTE:
may require a strong pull to remove it.
1. Align the tongue (3) of the battery pack with the cavity in the blower housing.
2.
3. Push the battery
trimmer
trimmer
pack into the handle until the latch locks into place.
4. Do not use force when inserting the battery pack. It should slide into position and “click”.
To install (See Figure 6.)
1
3
2
to read all safety

13
OPERATION
W A R N I N G
To avoid injury:
• Do not squeeze the trigger while the grass trimmer/edger is inverted.
Do not carry the grass trimmer/edger with your finger on the switch. Avoid unintentional starting.
To Turn On/Off: (See Figure 7.)
1. Press the safety lock out button (2) and squeeze the trigger switch (1) to start.
2. Release the trigger switch (1) to stop.
3. By varying the pressure on the trigger, you can control the trimmer speed.
C A U T I O N
Alwaysallow5 secondsor morefor the cuttinglinespoolto stoprotatingafter releasingthe
trigger switch.Do notinvertthe grass trimmer/edger ,or place your handsunder the protective
guard until the grass trimmer/edger spool has come to a complete stop.
Fig. 7
Edging Function (See Figure 8.)
For use next to patios, driveways and walkways or any areas requiring a well groomed edge line.
1. Push on the edge button(1) and tilt the trimmer head 90 degrees until the head locks into position
and release button.
IMPORTANT: The battery must be removed before making adjustments.
Lengthening the Line (See Figure 9.)
While the grass trimmer/edger is operating, the cutting line gets worn down and becomes
shorter. This trimmer is equipped with Automatic Line Advancement which automatically feeds
additional line to the correct length as it wears down. If the line does not automatically advance,
the trimmer line may be tangled or empty. To advance the line, stop and restart the trimmer.
Upon starting, the line will automatically advance 1/4" (6.4 mm) .
Fig. 8
1
1
2

OPERATION
14
Trimmer Tips
Before each use
• Make sure the protective guard is tightly installed. Tighten the guard screw.
• Make sure the battery is fully charged and that the charger is disconnected before using or
storing the trimmer.
• Do not store the grass trimmer/edger in sunlight, in an excessively warm place, or near a
furnace. The battery life will be shortened.
• If the battery must be stored in a warm place, charge it frequently.
• Before trimming, inspect the area for string, wire, branches or other material that may become
entangled in the cutting line and thrown.
During use
• Trim only when the grass and weeds are dry.
• Do not trim grass at night. Always make sure you have adequate lighting.
• Hold the grass trimmer/edger by both the switch handle and the auxiliary handle for best control
and balance.
• Stand with the cutting head tipped down at an angle in front, guiding the grass trimmer/edger in
a semicircular motion around you.
• If possible, guide the grass trimmer/edger to the left to cut.The line will cut as soon as it leaves
the guard, and the clippings are thrown away from you.
• To produce a smoothly trimmed area, move the grass trimmer/edger in and out of the area
with consistent speed and height.
• Use only the tip of the cutting line to do the trimming, especially near walls and fences.
Trimming with the side of the cutting line may overload the motor, wear out the line faster, and
break the line more often.
• Do not rest the trimmer spool on the ground while trimming. This will cause spool wear and
battery drain.
• If the grass is higher than 6” (15 cm), trim in small stages.
• When the grass trimmer/edger is turned off and the spool stops rotating, the cutting line will
relax and may recede. Feed extra cutting line before storing the trimmer to prevent losing the line
completely into the spool.
• If the diameter of the cutting area gets smaller, the line is worn down and needs to be advanced
more often.
• If the grass trimmer/edger is not cutting correctly, the cutting line may not be feeding properly.
Remove and rewind the line spool.
Fig. 9
being cut

15
OPERATION
CHARGING PROCEDURE (See Figure 10. )
CHECKING THE CHARGE
If the battery pack does not charge properly:
•Check the current at the power outlet with another tool. Make sure that the outlet is not
turned off.
•Check that the charger contacts have not been shorted by debris or foreign material.
•If the surrounding air temperature is not normal room temperature, move the charger and
battery pack to a location where the temperature is between 45˚F and 104˚F .
NOTE: The battery is not shipped fully charged. It is recommended to fully charge before first use
to ensure that maximum run time can be achieved. This lithium-ion battery will not develop a
memory and may be charged at any time. A fully discharged battery pack will require approximately
90 minutes to fully charge from a discharged state.
1. Plug the charger into an AC power outlet.
2. Insert the battery pack (3) into the charger.
This is a diagnostic charger. The Charger LED Lights will illuminate in specific order to communicate
the current battery status. They are as follows:
CHARGING PROCEDURE (LED INDICATOR)
BATTERY IS CHARGING:
FULLY CHARGED:
BATTERY IS TOO WARM:
(REMOVE FOR APPROX. 30
MINUTES TO ALLOW TO COOL)
DEFECTIVE BATTERY:
(REMOVE AND REPLACE WITH
NEW BATTERY IF THIS OCCURS)
NO BATTERY PRESENT
RED RED
GREEN
GREEN
RED
RED
RED
RED RED
BLINKING
ORANGE
3
2
1
Fig.10

16
OPERATION
W A R N I N G
If the battery is inserted into the charger when warm or hot, the CHARGING LED indicator light on
the charger may switch on and illuminate ORANGE. If this occurs allow the battery to cool outside
of the charger from approximately 30 minutes.
CHARGER MOUNTING (See Figure 11.)
1. This charger can be installed hanging on a wall using two screws (not supplied)
2. Locate the placement for the charger to be wall mounted.
3. If fastening to wood studs use 2 wood screws.
4. Drill two holes 2 3/8" (6 cm) on center ensuring they are level.
5. If fastening to drywall use wall anchors and screws to secure the charger to the wall.
Fig. 11

W A R N I N G
before adjusting, inspecting, or cleaning the blower.
Cleaning
Remove the battery pack.
1. Brush or blow dust and debris out of the air vents using compressed air or a vacuum. Keep
the air vents free of obstructions, sawdust, and wood chips. Do not spray, wash, or immerse the
air vents in water.
2. Wipe off the housing and the plastic components using a moist, soft cloth. Do not use strong
solvents or detergents on the plastic housing or plastic components. Certain household cleaners
may cause damage, and may cause a shock hazard.
Battery Pack
• Store the battery pack fully charged.
•Once the charging light turns green, remove the battery from the charger and disconnect the
charger from the outlet.
• Do not store the battery pack on the tool or in the charger.
•After charging, the battery pack may be stored in the charger, as long as the charger is not
plugged in.
Charger Maintenance
•Keep the charger clean and clear of debris. Do not allow foreign material to get into the
recessed cavity or onto the contacts. Wipe the charger clean with a dry cloth. Do not use
solvents or water, and do not place the charger in wet conditions.
• Unplug the charger when there is no battery pack in it.
•Fully charge the batteries before placing them in storage. Do not recharge a fully charged
battery pack.
• Overcharging will shorten battery life.
•Recharge the battery pack whenever there is less power. Do not allow the batteries to become
completely discharged.
•Store the charger at normal room temperature. Do not store it in excessive heat. Do not use
the charger in direct sunlight. Recharge at room temperature between 45 and 104˚F (7 and
40˚C). If the battery pack is hot, allow it to cool down before recharging.
17
MAINTENANCE

18
ENVIRONMENTALLY SAFE BATTERY DISPOSAL
The following toxic and corrosive materials are in the batteries used in this grass
trimmer battery pack: Lithium, a toxic material.
W A R N I N G
W A R N I N G
environment. Before disposing of damaged or worn out nickelcadmium battery packs, contact
your local waste disposal agency, or the local Environmental Protection Agency for information
for cadmium disposal.
If the battery pack cracks or breaks, with or without leaks, do not recharge it and do not use.
Dispose of it and replace with a new battery pack. DO NOT ATTEMPT TO REPAIR IT!
To avoid injury and risk of fire, explosion, or electric shock, and to avoid damage to the
environment:
•Cover the battery's terminals with heavy-duty adhesive tape.
•DO NOT attempt to remove or destroy any of the battery pack components.
•DO NOT attempt 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 place these batteries in your regular household trash.
•DO NOT incinerate.
•
waste stream.
•

19
PROBLEM POSSIBLE CAUSE SOLUTION
TROUBLESHOOTING
Motor fails to start
when switch trigger
is depressed.
Motor runs, but cutting
blades do not move.
Trimmer damaged.
Do not use string trimmer.
Call for technical service.
Trimmer smokes
during operation.
Cutting line does not
advance
Line may be tangled
on spool
Line has run out
Trimmer damaged.
Do not use string trimmer.
Call for technical service.
Remove battery. remove spool cover and
spool. unwind spool and rewind, ensuring
that line is not tangled.
Replace spool or spool line.
Battery is not secure.
Battery is not charged.
To secure the battery pack, make sure
the latches on the top of the battery pack
snap into place.
Charge the battery pack according to the
instructions included with your model.

20
GREENWORKS™ hereby warranties this product, to the original purchaser with proof of
purchase, for a period of four (4) years against defects in materials, parts or workmanship.
GREENWORKS™, at its own discretion will repair or replace any and all parts found to be
defective, through normal use, free of charge to the customer. This warranty is valid only for
units which have been used for personal use that have not been hired or rented for industrial/
commercial use, and that have been maintained in accordance with the instructions in the
owners’ manual supplied with the product from new.
Battery carries a two (2) year warranty against defects in workmanship and materials. Batteries
must be charged in accordance with the operator’s manuals directions and regulations in order
to be valid.
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 in accordance with the owner's
manual; or
3. Normal wear, except as noted below;
4. Routine maintenance items such as spool-line, spool cover, blade sharpening;
5.
GREENWORKS HELPLINE (1 888 90WORKS):
Warranty service is available by calling our toll-free helpline, 9am to 5pm EST. at
1-888-909-6757 (1-888-90WORKS).
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.
LIMITED FOUR-YEAR WARRANTY