GreenWorks 20242 Owner's Manual
Read all safety rules and instructions carefully before operating this tool.
Owner’s Manual
TOLL-FREE HELPLINE: 1-888-90WORKS
(888.909.6757)
18" 14.5A ELECTRIC CHAINSAW
20242
054-5747-6
2
Introduction .......................................................................................................................... 2
Specications ...................................................................................................................... 2
Important Safety Instructions ............................................................................................ 3-5
General Safety Rules ........................................................................................................ 6-7
Symbols ............................................................................................................................8-9
Electrical ....................................................................................................................... 10 -11
Know Your Chainsaw .....................................................................................................12-13
Assembly ........................................................................................................................... 14
Operation ...................................................................................................................... 15 -26
Maintenance ................................................................................................................. 27-36
Troubleshooting ................................................................................................................. 37
Warranty ............................................................................................................................ 38
Exploded view .................................................................................................................... 39
Parts list ........................................................................................................................ 40 - 41
Notes ................................................................................................................................. 42
SPECIFICATIONS
18" 14.5A ELECTRIC CHAIN SAW
Motor .................................................................................... 120 V AC, 60 Hz, 14.5 Amp
Bar length ...................................................................................................... 18" (45 cm)
Speed ..............................................................................................6000 RPM (No load)
Chain pitch .................................................................................................3/8" (9.5 mm)
Chain gauge ............................................................................................. 0.05" (1.3 mm)
Unit weight .............................................................................................. 11.44 lb (5.2 kg)
CONTENTS
3
IMPORTANT SAFETY INSTRUCTIONS
WARNING
Do not attempt to operate this tool until you have read all of the instructions, safety information, etc.
contained in this manual thoroughly and understand them completely. Failure to comply may result
in accidents involving re, electric shock, or serious personal injury.
• Do not start cutting until you have a clear work area, secure footing, and a planned retreat
path from the falling tree. Cluttered areas invite accidents.
• Keep all children, bystanders, visitors, and animals out of the work area while starting or
cutting with the chainsaw.
• Do not operate chainsaw in an explosive atmosphere, such as in the presence of ammable
liquids, gases, or dust. Power tools create sparks that may ignite the dust or fumes.
WARNING
Use outdoor extension cords marked SW-A, SOW-A, STW-A, STOW-A, SJW-A, SJTW-A, or
SJTOW-A. These cords are rated for outdoor use, and reduce the risk of electric shock.
• Polarized Plugs. To reduce the risk of electric shock, this tool has a polarized plug (one blade
is wider than the other). This plug will only t into a polarized outlet one way. If the plug does
not t fully into the outlet, reverse the plug. If it still does not t, contact a qualied electrician
to install the proper outlet. Do not change the plug in any way.
• Make sure your extension cord is in good condition. When using an extension cord, be sure
to use one heavy enough to carry the current your product will draw. A wire gauge size
(A.W.G.) of at least 14 is recommended for an extension cord 50' (15 m) or less in length. A
cord exceeding 100' (30 m) is not recommended. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord. An undersized cord will cause a drop in line
voltage, resulting in loss of power and overheating.
• Inspect extension cords periodically, and if damaged, have repaired by a licensed electrician.
Constantly stay aware of cord location. Following this rule will reduce the risk of electric shock
or re.
• Wear snug tting clothing. Always wear heavy, long pants, overalls, jeans or chaps made of
cut-resistant material or ones that contain cut-resistant inserts. Wear non-slip safety footwear.
Wear non-slip heavy duty gloves to improve your grip and to protect your hands. Do not wear
jewelry, short pants, sandals, or go barefoot. Do not wear loose-tting clothing that could be
drawn into the motor or catch the chain or underbrush. Secure hair so it is above shoulder
level.
• Heavy protective clothing may increase operator fatigue, which could lead to heat stroke.
• During weather that is hot and humid, heavy work should be scheduled for early morning or
late afternoon hours, when temperatures are cooler.
• Wear eye protection that is marked to comply with ANSI Z87.1 as well as hearing and head
protection when operating this equipment. Hearing protection should be worn.
• Always be aware of what you are doing when using the chainsaw. Use common sense. Do
not operate the chainsaw when you are tired, ill, or under the inuence of alcohol, drugs, or
medication.
4
IMPORTANT SAFETY INSTRUCTIONS
• Do not expose the chainsaw to rain.
• Do not use the chainsaw in damp or wet locations.
• Stay alert and pay attention to what you are doing.
• Keep all parts of your body away from the saw chain when the unit is running.
• Always carry the chainsaw by the front handle with the power cord removed and the guide bar
and saw chain positioned to the rear.
• Never let anyone use your chainsaw who has not received adequate instructions in its proper
use. This applies to rentals as well as privately owned saws.
• Before you start the unit, make sure the saw chain is not contacting any object.
• Stop the chain saw before setting it down.
• To avoid accidental starting, never carry the unit with your nger on the trigger switch .
• Maintain the unit with care. Keep the cutting edge sharp and clean for best performance and
to reduce the risk of injury. Follow instructions for lubricating and changing accessories.
• Keep handles dry, clean, and free of oil and grease.
• Do not operate a chainsaw with one hand! Use a rm grip with thumbs and ngers encircling
the chainsaw handles. Serious injury to the operator, helpers, bystanders, or any combination
of these persons may result from one-handed operation. A chainsaw is intended for twohanded use.
• Avoid body contact with grounded surfaces such as metal pipes and wire fences. There is an
increased risk of electric shock if your body is grounded.
• Do not operate a chainsaw that is damaged, improperly adjusted, or not completely and
securely assembled. Chain should slow to a stop when the trigger switch is released. If the
chain continues to turn after the trigger switch has been released, have the unit serviced by
your nearest GreenWorks™ service dealer.
• Check for damaged parts, misalignment or binding of moving parts, broken parts and
mountings, and any other condition that may affect the operation of the tool.
• All chainsaw service, other than the items listed in the operation and maintenance sections,
should be performed by your nearest GreenWorks™ service dealer.
• Always maintain a proper stance.
• Do not use chainsaw if switch does not turn it on and off. Have defective switch replaced by
authorized service centre.
• Do not adapt your chainsaw to a bow guide or use it to power any attachments or devices not
listed for the saw.
• Disconnect chainsaw from power supply when not in use, before servicing, and when making
adjustments and changing attachments, such as saw chain and bar.
• Do not cut vines and/or small underbrush.
• Do not operate a chainsaw in a tree, on a ladder, or on scaffolding. Doing so is extremely
dangerous.
NOTE: The size of the work area depends on the job being performed as well as the size of the tree or
workpiece involved. For example, felling a tree requires a larger work area than making bucking cuts.
5
IMPORTANT SAFETY INSTRUCTIONS
• Use extreme caution when cutting small brush and saplings, because small material may
catch the saw chain and be whipped toward you or pull you off balance.
• When cutting a limb that is under tension, be alert for spring back, so that you will not be
struck when the tension in the wood bers is released.
• Do not force the chainsaw. The job can be performed better if the saw is used at the rate that
it was designed to work at.
• Always use the right product for your application. The chainsaw should be used for cutting
wood only. Never use the chainsaw to cut plastic, masonry or non-wooden building materials.
• Do not use the chainsaw for purposes other than what it is intended for.
• Store chainsaw when not in use. Chainsaw should be stored in a dry and high or locked area,
out of the reach of children.
•Save these instructions. Refer to them frequently, and use them to instruct others who may
use this tool. If you loan someone this tool, also loan them these instructions.
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
6
GENERAL SAFETY RULES
WARNING
Kickback may occur when the moving chain contacts an object at the upper portion of the tip of the
guide bar, or when the wood closes in and pinches the saw chain in the cut. Contact at the upper
portion of the tip of the guide bar can cause the chain to dig into the object and stop the chain for
an instant. The result is a lightning fast reverse reaction that kicks the guide bar up and back toward
the operator. If the saw chain is pinched along the top of the guide bar, the guide bar can be driven
rapidly back toward the operator. Either of these reactions can cause loss of saw control, which
can result in serious injury. Do not rely exclusively on the safety devices built into the saw. As a
chainsaw user, you should take several steps to keep your cutting jobs free from accident or injury.
THE FOLLOWING PRECAUTIONS SHOULD BE FOLLOWED TO MINIMIZE
KICKBACK:
1. Always grip the saw rmly with both hands. Hold the saw rmly with both hands when the
unit is running. Place your right hand on the rear handle and your left hand on the front
handle, with your thumbs and ngers encircling the chain saw handles. A rm grip and a
stiff left arm will help you maintain control of the saw if kickback occurs.
2. Make sure that the area in which you are cutting is free of obstructions. Do not let the
nose of the guide bar contact a log, branch, fence, or any other obstruction that could be
hit while you are operating the saw.
3. Always cut with the unit running. Fully squeeze the trigger switch and maintain cutting
speed.
4. Use only the replacement guide bars and low-kickback chains specied by the
manufacturer for the saw.
• With a basic understanding of kickback, you can reduce or eliminate the element of surprise.
Sudden surprise contributes to accidents.
• Keep proper footing and balance at all times.
• Do not cut above shoulder height or overreach when cutting.
• Follow the sharpening and maintenance instructions for the saw chain.
KICKBACK (See Fig. 1 - 2.)
Fig. 2Fig. 1
KIROTATIONAL
KICKBACK
CKBACK
DANGER ZONE
7
GENERAL SAFETY RULES
• Push and Pull — This reaction force is always opposite to the direction the chain is moving
where contact is made with the wood. Thus, the operator must be ready to control the PULL
when cutting on the bottom edge of the bar, and the PUSH when cutting along the top edge.
(See Fig. 3)
Fig. 3
PULL
PUSH
8
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.
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
No Load Speed Rational speed, at no load
Class II Construction Double-insulated construction
/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.
Wear eye and head protection when operating
this equipment.
Safety Alert Precautions that involve your safety.
Operate With Two Hands Hold and operate the saw properly with both
hands
Kickback DANGER! Beware of kickback.
Bar Nose Contact Avoid bar nose contact.
Wear Gloves Wear non-slip, heavy-duty protective gloves when
handling the chainsaw.
Wear Safety Footwear Wear non-slip safety footwear when using this
equipment.
Keep Bystanders Away Keep all bystanders at least 50 ft. away.
Eye, Hearing, and Head
Protection
Wear eye, hearing, and head protection when
operating this equipment.
Hold and operate the saw properly with both
hands.
9
The following signal words and meanings a re i ntended t o explain the levels o f risk associated
with this product.
WARNIN G
To avoid serious p ersonal i njury, do not a ttempt to use t his product until you have r ead t his
Owner's Manual thoroughly and understand it completely. If you do not understand the warnings
and instructions in t his Owner's M anual, do n ot use t his product. Call the Toll-free Helpline (1888-909-6757) for assistance.
WARNING
The operation of any power t ool can r esult in foreign objects being t hrown into your
eyes, which can result in severe eye damage. Before beginning power tool operation,
always wear safety goggles or safety glasses with s ide shields and, w hen needed, a
full face shield. We recommend Wide Vision S afety 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.
S YMBOL SIGNAL MEANIN G
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 ndicates 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
10
ELECTRICAL
DOUBLE INSULATION
Double insulation is a concept in safety in electric power tools, which eliminates the need for the
usual t hree-wire g rounded power c ord. All e xposed m etal parts a re i solated from the i nternal
metal motor components with protecting insulation. D ouble insulated tools do n ot need t o be
grounded.
NOTE: Servicing of a product with double insulatio n requires extreme care and knowledge of the system and
to your nearest authorized service center for repair. Always use original factory replacemen t parts when
servicing.
WARNING
The double insulated system is intended to protect the user from shock resulting from a break in
the tool’s internal insulation. Observe all normal safety precautions to avoid electrical shock.
ELECTRICAL CONNECTION
This product has a precision-built electric motor. It should be connected to a power supply that is
120V, AC only (normal household current), 60 Hz. D o not operate this p roduct on direct current
(DC). A substantial voltage d rop will cause a l oss of power and t he motor will overheat. If the
product does not operate when plugged into an outlet, double-check the power supply.
EXTENSION CORDS (See Figure 4)
When using a power tool at a considerable d istance f rom a power source, be sure to use a n
extension cord that has t he capacity to handle the current the p roduct will draw. An undersized
cord will cause a drop in line voltage, resulting in overheating and loss of power. Use the chart to
determine the minimum wire size required in an extension cord. Only round jacketed cords listed
by Underwriter’s Laboratories (UL) should be used.
When working outdoors with a p roduct, use an extension cord that i s designed for outside use.
This type of cord is designated with “W-A” or “W” on the cord’s jacket.
Before using any extension cord, inspect it for loose or exposed wires and cut or worn insulation.
A proper extension cord is available at an authorized service center.
It is possible to tie the extension cord and power cord in a knot to prevent them from becoming
power cord into t he receptacle end of the extension cord. T his method can a lso be u sed to tie
two extension cords together.
Fig. 4
11
ELECTRICAL
WARNING
Keep the extension cord clear of the working area. Position the cord so that it will not get caught
on lumber, tools, or other o bstructions while you are working with a power tool. Failure to do so
can result in serious personal injury.
WARNING
Check extension cords before each use. If damaged replace immediately. Never use the product
with a damaged cord since touching the damaged area could cause electrical shock resulting in
serious injury.
12
KNOW YOUR CHAINSAW
Read this operator's manual and safety rules before operating your lawn mower. Compare the
illustration in Figure 5 to your chainsaw in order to familiarize yourself with the location of various
controls and adjustments. Save this manual for future reference.
Fig. 5
LOW KICKBACK
SAW CHAIN
CORD
RETAINER
CHAIN COVER
CHAIN
TENSIONING
KNOB
CHAIN COVER
LOCK KNOB
FRONT HAND
GUARD
QUICK VIEW
OIL INDICATOR
SWITCH
TRIGGER
SWITCH
LOCK
POWER
CORD
FRONT
HANDLE
OIL RESERVOIR
CAP
GUIDE
BAR
Chain Brake /
Hand Guard
13
The safe use of this product requires an understanding of the information on the tool and in this
Owner's Manual, as well as a knowledge of the project you are attempting. Before using this
product, familiarize yourself with all operating features and safety rules. (See Fig. 5)
CHAIN TENSIONING KNOB
This feature allows user to adjust the tension of the chain.
GUIDE BAR
The factory-equipped guide bar has a small radius tip that offers a somewhat lower kickback
potential.
LOW-KICKBACK SAW CHAIN
The low-kickback saw chain helps minimize the force of a kickback reaction by preventing the
cutters from digging in too deeply at the kickback zone.
QUICK-VIEW OIL INDICATOR
Semi-transparent oil reservoir that allows user to see when to add oil.
SWITCH LOCK
A control feature designed to prevent the motor from being started accidentally..
TRIGGER SWITCH
Squeeze the trigger switch to operate the unit after switch lock has been pushed in. Release the
trigger switch to stop the unit.
MECHANICAL CHAIN BRAKE
Safety feature designed to stop a moving chain in a fraction of a second if kickback occurs,
reducing the chances of severe injury.
KNOW YOUR CHAINSAW
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