Greenworks ST-140-T User Manual
40V 14’’ Brushless String Trimmer
ST-140-T
Owner’s Manual
TOLL-FREE HELPLINE: 1-833-493-5483
www.greenworkselite.com
Read all safety rules and instructions carefully before operating this tool.
CONTENTS
Contents .............................................................................................................................. 2
Product Specications ........................................................................................................ 2
Important Safety Instructions ............................................................................................... 3
Symbols ............................................................................................................................... 6
Know Your String Trimmer ................................................................................................... 8
Assembly ........................................................................................................................... 10
Operation ........................................................................................................................... 16
Maintenance........................................................................................................................... 26
Environmentally Safe Battery Disposal .................................................................................27
Troubleshooting..................................................................................................................28
Warranty..................................................................................................................................30
Exploded View and Part List .................................. ..............................................................31
PRODUCT SPECIFICATIONS
40V 14’’ BRUSHLESS STRING TRIMMER
Type ............................................................................................................. battery powered
Motor .............................................................................................................. 40V Brushless
Cutting Width ....................................................................................14 / 16 in. (35.6 / 40.6 cm)
Line Diameter ..................................................................................Nylon / 0.08" Dual line
Speed ...........................................................................................................6500 (±10%) RPM
Feed Type ...............................................................................................................Bump Feed
Weight (without battery) ...............................................................................6.39 lbs (2.90 kg)
Weight (with 3Ah battery) ...............................................................................8.27 lbs (3.75 kg)
Charge time...........................................................90 min. (3Ah battery and standard charger)
Run time..........................................................................................................................33 min
YEAR/ANS/AN
TOOL WARRANTY
GARANTIE DE
INSTRUMENT
GARANTIE DU
CHARGEUR
2
IMPORTANT SAFETY INSTRUCTIONS
WARNING
Read and understand all instructions before using this product.
instructions listed below may result in electric shock, re, and/or serious personal injury.
Failure to follow all
• Use only identical manufacturer’s replacement parts and accessories.
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 operation is dusty.
• Avoid Dangerous Environment — Don’t expose power tools to damp or wet conditions.
Water entering a power tool will increase the risk of electric shock.
• Don’t use in rain.
• Keep all bystanders, children, and pets at least 50 ft. away.
• Use Right Appliance – Do not use appliance for any job except that for which it is
intended.
• Avoid Unintentional Starting – Do not carr y string trimmer with ngers on the switch.
Be sure the battery is removed while transpor ting.
• Do not operate the equipment while barefoot or when wearing sandals or similar
lightweight footwear.
footing on slippery surfaces.
• Don’t overreach - Keep proper footing and balance at all times.
• Stay alert - Watch what you are doing. Use common sense.
you are tired, ill or under the inuence of alcohol, drugs or medication.
• Store idle appliances indoors
dry, and high or locked-up place - out of reach of children.
• Maintain appliance with care – Replace string head if cracked, chipped, or damaged
in any way.
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 further use of the appliance, a guard or other par t that
is damaged should be carefully checked to determine that it will operate properly and
perform its intended function.
parts, breakage of parts, mounting, 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.
• Do not charge or operate cordless tools in damp or wet locations or in the rain.
Following this rule will reduce the risk of electric shock.
• Remove or disconnect battery before servicing, cleaning or removing material from
the gardening appliance.
Be sure the string head is properly installed and securely fastened. Keep cutting
Wear protective footwear that will protect your feet and improve your
Do not operate this unit when
- When not in use, appliances should be stored indoors in
Check for alignment of moving parts, binding of moving
Use of any other
3
IMPORTANT SAFETY INSTRUCTIONS
• Do not dispose of the batteries in a re.
possible special disposal instructions.
• Do not open or mutilate the batteries.
damage to the eyes or skin. It may be toxic if swallowed.
• Exercise care in handling batteries in order not to short the batter y with conducting
materials such as rings, bracelets, and keys.
cause burns.
• Dress Properly – Do not wear loose clothing or jewelr y.
parts. Use of rubber gloves and substantial footwear is recommended when working outdoors.
Wear protective hair covering to contain long hair.
• Don’t Force Appliance
the rate for which it was designed.
• Recharge only with the charger specied by the manufacturer.
for one type of batter y pack may create a risk of re when used with another battery pack.
• Use only with Greenworks Elite batteries: L-300, L600.
• Use only with Greenworks Elite Chargers: C-220, C- 400.
• 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.
re.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If
contact accidentally occurs, flush with water.
medical help. Liquid ejected from the battery may cause irritation or burns.
• Do not use a batter y pack or appliance that is damaged or modified.
modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of
injury.
• Do not expose a batter y pack or appliance to re or excessive temperature.
to fire or temperature above130°C may cause explosion.The temperature of 130°C can be
replaced by the temperature of 265°F.
• Follow all charging instructions and do not charge the battery pack or appliance
outside of the temperature range specied in the instructions.
temperatures outside of the specied range may damage the battery and increase the risk of
re.
• Have servicing performed by a qualied repair person using only identical replacement
parts.
This will ensure that the safety of the product is maintained.
• Prevent unintentional starting.
battery pack, picking up or carrying the appliance which will have the switch on would invite
accidents.
• Disconnect applicance
accessories such as blade, and the like.
• Use appliances only with specic designated battery packs.
may create a risk of injury and re.
– It will do the job better and with less likelihood of a risk of injury at
Shorting the battery terminals together may cause burns or a
Ensure the switch is in the of f-position before connecting to
- Remove the battery when not in use, before servicing, when changing
The cells may explode. Check with local codes for
Released electrolyte is corrosive and may cause
The battery or conductor may overheat and
They can be caught in moving
A charger that is suitable
If liquid contacts eyes, additionally seek
Damaged or
Exposure
Charging improperly or at
Use of any other battery packs
4
IMPORTANT SAFETY INSTRUCTIONS
• Do not modify or attempt to repair the appliance or the battery pack except as indicated
in the instructions for use and care.
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.
WARNING(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
approved safety equipment, such as dust masks that are specially designed to lter out microscopic
particles.
SAVE THESE INSTRUCTIONS
5
SYMBOLS
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.
SYMBOL NAME DESIGNATION/EXPLANATION
V Volts Voltage
min Minutes Time
Direct Current Type or a characteristic of current
No Blade
/min Per Minute
Wet Conditions Alert Do not expose to rain or use in damp locations.
Do not install or use any type of blade on a
product or displaying this symbol.
Revolutions, strokes, surface speed, orbits
etc., per minute.
Read The Operator’s Manual
Eye Protection
Safety Alert Precautions that involve your safety.
Ricochet
Keep Bystanders Away Keep all bystanders at least 50 ft. away.
To reduce the risk of injury user must read and
understand operator’s manual before using
this product.
Always wear eye protection with side shields
marked to comply with ANSI Z87.1 when
operating this equipment.
Thrown objects can ricochet and result in
personal injury or property damage.
6
SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated
with this product.
SYMBOL SIGNAL MEANING
avoided, will result in death or serious injury.
could result in death or serious injury.
may result in minor or moderate injury.
result in property damage.
DANGER
WARNING
CAUTION
CAUTION
Indicates an imminently hazardous situation, which, if not
Indicates a potentially hazardous situation, which, if not avoided,
Indicates a potentially hazardous situation, which, if not avoided,
(Without Safety Alert Symbol) Indicates a situation that may
SERVICE
Servicing requires extreme care and knowledge and should be performed only by a qualified
service technician. For service we suggest you return the product to your nearest
SERVICE CENTER
accessories.
for repair. Use only identical manufacturer’s replacement parts and
AUTHORIZED
WARNING
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 (1-833-493-
5483) 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.
WARNING
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.
SAVE THESE INSTRUCTIONS
7
KNOW YOUR STRING TRIMMER
Rear handle
Auxilary handle
Coupler
Trimmer shaft
Edge guide
Guard
Lock-out button Switch trigger
Line cut-off blade
Fig. 1
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.
REAR HANDLE
Ergonomic handle with overmold improves comfort and grip.
AUXILIARY HANDLE
The string trimmer is equipped with an auxiliary handle for ease of operation and to prevent loss
of control.
COUPLER
The coupler connects and locks the two shafts.
TRIMMER SHAFT
The trimmer shaft encloses and protects the cables between the motor and rear handle.
EDGE GUIDE
Allows for trimming around ower bed without damaging plants.
GUARD
The trimmer includes a guard that helps protect from ying debris.
LOCK-OUT BUTTON
The lock-out button prevents accidental starting.
SWITCH TRIGGER
To turn the string trimmer On and Off.
LINE CUT-OFF BLADE
Adjustable steel blade on the guard keeps the cutting line at the proper cutting length.
9
ASSEMBLY INSTRUCTION
UNPACKIN G
This product requires assembly.
• Carefully remove the product and any accessories from the box. Make sure that all items
listed in the packing list are included.
• Inspect the tool carefully to make sure no breakage or damage occurred during shipping.
• Do not discard the packing material until you have carefully inspected and satisfactorily
operated the tool.
• If any parts are damaged or missing, please call 1-833 -493- 5483.
WARNING
Do not use this product if any parts on the packing list are already assembled to your product when
you unpack it. Parts on this list are not assembled to the product by the manufacturer and require
customer installation. Use of a product that may have been improperly assembled could result in
serious personal injury.
PACKI NG LIST
Part Name Figure Qty
String trimmer 1
Auxiliary handle 1
Guard 1
Edge guide 1
Auliliary handle screws 2
Trimmer guard screws 2
Operator's manual 1
10
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