Worx WG303E Installation manual

Chain Saw WG303E
SAFETY AND OPERATING MANUAL

Chain Saw WG303E
2
GENERAL SAFETY RULES
WARNING: Read all instructions.
Failure to follow all instructions listed
below may result in electric shock, fire and/
or serious injury.The term “power tool” in
all of the warnings listed below refers to
your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
SAVE THESE INSTRUCTION
1. WORK AREA
a) Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
b) 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.
c) Keep children and bystanders
away while operating a power tool.
Distractions can cause you to lose control.
2. ELECTRICAL SAFETY
a) 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.
b) 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.
c) Do not expose power tools to rain or
wet conditions. Water entering a power
tool will increase the risk of electric shock.
d) 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.
e) 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.
f) 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.
3. PERSONAL SAFETY
a) 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.
b) Use safety equipment. Always wear
eye protection. Safety equipment such
as dust mask, non-skid safety shoes,
hard hat, or hearing protection used
for appropriate conditions will reduce
personal injuries.
c) Avoid accidental starting. Ensure the
switch is in the off-position before
plugging in. Carrying power tools with
your finger on the switch or plugging
in power tools that have the switch on
invites accidents.
d) 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.
e) Do not overreach. Keep proper
footing and balance at all times. This
enables better control of the power tool in
unexpected situations.
f) 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.
g) If devices are provided for the
connection of dust extraction and
collection facilities, ensure these are
connected and properly used. Use
of these devices can reduce dust-related
hazards.
4. POWER TOOL USE AND CARE
a) Do not force the power tool. Use
the correct power tool for your
application. The correct power tool will

Chain Saw WG303E
3
do the job better and safer at the rate for
which it was designed.
b) 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.
c) 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.
d) 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.
e) 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.
f) Keep cutting tools sharp and clean.
Properly maintained cutting tools with
sharp cutting edges are less likely to bind
and are easier to control.
g) 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.
5. SERVICE
a) 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.
CHAIN SAW SAFETY
WARNINGS
1. Keep all parts of the body away
from the saw chain when the chain
saw is operating. Before you start
the chain saw, make sure the saw
chain is not contacting anything. A
moment of inattention while operating
chain saws may cause entanglement
of your clothing or body with the saw
chain.
2. Always hold the chain saw with
your right hand on the rear handle
and your left hand on the front
handle. Holding the chain saw with a
reversed hand configuration increases
the risk of personal injury and should
never be done
3. Hold the power tool by insulated
gripping surfaces only, because
the saw chain may contact hidden
wiring or its own cord. Saw chains
contacting a “live” wire may make
exposed metal parts of the power tool
“live” and could give the operator an
electric shock.
4. Wear safety glasses and hearing
protection. Further protective
equipment for head, hands, legs
and feet is recommended. Adequate
protective clothing will reduce personal
injury by flying debris or accidental
contact with the saw chain
5. Do not operate a chain saw in a
tree. Operation of a chain saw while up
in a tree may result in personal injury.
6. Always keep proper footing and
operate the chain saw only when
standing on fixed, secure and level
surface. Slippery or unstable surfaces
such as ladders may cause a loss of
balance or control of the chain saw.
7. When cutting a limb that is under
tension be alert for spring back.
When the tension in the wood fibres is
released the spring loaded limb may
strike the operator and/or throw the
chain saw out of control.
8. Use extreme caution when cutting

Chain Saw WG303E
4
brush and saplings. The slender
material may catch the saw chain and
be whipped toward you or pull you off
balance.
9. Carry the chain saw by the front
handle with the chain saw switched
off and away from your body. When
transporting or storing the chain
saw always fit the guide bar cover.
Proper handling of the chain saw will
reduce the likelihood of accidental
contact with the moving saw chain.
10. Follow instructions for lubricating,
chain tensioning and changing
accessories. Improperly tensioned
or lubricated chain may either break or
increase the chance for kickback.
11. Keep handles dry, clean, and free
from oil and grease. Greasy, oily
handles are slippery causing loss of
control.
12. Cut wood only. Do not use chain
saw for purposes not intended. For
example: do not use chain saw for
cutting plastic, masonry or non-
wood building materials. Use of the
chain saw for operations different than
intended could result in a hazardous
situation
13. Do not use any attachments or
accessories not recommended
by the manufacturer. The use of
attachments or accessories not
recommended can result in serious
personal injury. To reduce the risk
of injury, the operator should use the
accessory or attachment according to the
instruction
14. We recommend that the first-time
user should, as a minimum practice,
cutting logs on a saw-horse or
cradle
15. Position the cord so that it will not
be caught on branches and the like,
during cutting.
16. Always wear safety goggles or
safety glasses with side shields
when operating tools. Failure to do
so could result in objects being thrown
into your eyes causing possible serious
injury.
17. To avoid injury from unexpected
starting or electrical shock during
assembly or adjustment, do not plug
the power cord into a source of
power.
18. When the machine is not in use
and to prevent unauthorized use,
the switch should be locked in the
“OFF” position.
CAUSES AND OPERATOR PREVENTION
OF KICKBACK:
1. Kickback may occur when the nose or tip of
the guide bar touches an object, or when the
wood closes in and pinches the saw chain in
the cut.
2.Tip contact in some cases may cause a
sudden reverse reaction, kicking the guide bar
up and back towards the operator.
3. Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly back
towards the operator.
4. Either of these reactions may cause you to
lose control of the saw which could result in
serious personal injury. Do not rely exclusively
upon the safety devices built into your saw.
As a chain saw user, you should take several
steps to keep your cutting jobs free from
accident or injury.
5. Kickback is the result of tool misuse and/or
incorrect operating procedures or conditions
and can be avoided by taking proper
precautions as given below:
• Maintain a firm grip, with thumbs
and fingers encircling the chain saw
handles, with both hands on the saw
and position your body and arm to
allow you to resist kickback forces.
Kickback forces can be controlled by the
operator, if proper precautions are taken.
Do not let go of the chain saw.
• Maintain a firm grip, with thumbs
and fingers encircling the chain saw
handles, with both hands on the saw
and position your body and arm to
allow you to resist kickback forces.
Kickback forces can be controlled by
the operator, if proper precautions
are taken. Do not let go of the chain saw.
• Do not overreach and do not cut

Chain Saw WG303E
5
above shoulder height.This helps
prevent unintended tip contact and
enables better control of the chain saw in
unexpected situations.
• Only use replacement bars and
chains specified by the manufacturer.
Incorrect replacement bars and chains may
cause chain breakage and/or kickback.
• Follow the manufacturer’s sharpening
and maintenance instructions for the
saw chain. Decreasing the depth gauge
height can lead to increased kickback
INSTRUCTIONS CONCERNING THE
PROPER TECHNIQUES FOR BASIC
FELLING, LIMBING, AND CROSS-
CUTTING
1. FELLING A TREE
When bucking and felling operations are
being performed by two or more persons at
the same time, the felling operations should
be separated from the bucking operation by
a distance of at least twice the height of the
tree being felled.Trees should not be felled in
a manner that would endanger any person,
strike any utility line or cause any property
damage. If the tree does make contact with
any utility line, the company should be notified
immediately.
The chain saw operator should keep on the
uphill side of the terrain as the tree is likely to
roll or slide downhill after it is felled.
An escape path should be planned and
cleared as necessary before cuts are started.
The escape path should extend back and
diagonally to the rear of the expected line of
fall as illustrated in Figure 1.
Before felling is started, consider the natural
lean of the tree, the location of larger branches
and the wind direction to judge which way the
tree will fall.
Remove dirt, stones, loose bark, nails, staples
and wire from the tree.
2. NOTCHING UNDERCUT
Make the notch 1/3 the diameter of the
tree, perpendicular to the direction of falls
as illustrated in Figure 2. Make the lower
horizontal notching cut first.This will help to
avoid pinching either the saw chin or the guide
bar when the second notch is being made.
3. FELLING BACK CUT
Make the felling back cut at least 50 mm higher
than the horizontal notching cut as illustrated
in Figure 2. Keep the felling back cut parallel
to the horizontal notching cut. Make the felling
back cut so enough wood is left to act as a
hinge.The hinge wood keeps the tree from
twisting and falling in the wrong direction. Do
not cut through the hinge.
As the felling gets close to the hinge, the tree
should begin to fall. If there is any chance that
the tree may not fall in desired direction or it
may rock back and bind the saw chain, stop
cutting before the felling back cut is complete
and use wedges of wood, plastic or aluminium
to open the cut and drop the tree along the
desired line of fall.
When the tree begins to fall remove the chain
saw from the cut, stop the motor, put the chain
saw down, then use the retreat path planned.
Be alert for overhead limbs falling and watch
your footing.
4. LIMBING A TREE
Limbing is removing the branches from a
fallen tree. When limbing leave larger lower
limbs to support the log off the ground.
Remove the small limbs in one cut as
illustrated in Figure 3. Branches under tension
should be cut from the bottom up to avoid
binding the chain saw.
5. BUCKING A LOG
Bucking is cutting a log into lengths. It is
important to make sure your footing is firm
and your weight is evenly distributed on both
feet. When possible, the log should be raised
and supported by the use of limbs, logs or
chocks. Follow the simple directions for easy
cutting.
When the log is supported along its entire
length as illustrated in Figure 4, it is cut from
the top (overbuck).
When the log is supported on one end, as
illustrated in Figure 5, cut 1/3 the diameter
from the underside (underbuck).Then make
the finished cut by overbucking to meet the

Chain Saw WG303E
6
first cut.
When the log is supported on both ends, as
illustrated in Figure 6, cut 1/3 the diameter
from the top (overbuck). Then make the
finished cut by underbucking the lower 2/3 to
meet the first cut.
When bucking on a slope always stand on the
uphill side of the log, as illustrated in Figure 7.
When “cutting through”, to maintain complete
control release the cutting pressure near the
end of the cut without relaxing your grip on
the chain saw handles. Don’t let the chain
contact the ground. After completing the cut,
wait for the saw chain to stop before you move
the chain saw. Always stop the motor before
moving from tree to tree.
Felling direction
Escape
route
Danger zone
Danger zone
Escape
route
Figure 1 – Description of felling: escape routes
Direction of fall
Felling back cut
50mm
50mm
Hinge
Notch
Figure 2 – Description of felling: undercutting
Limb cut
Keep work off ground leave support limbs until log is cut
Figure 3 –Tree limbing
Cut from top (overbuck) avoid cutting earth
Figure 4 – Log supported along the entire
length

Chain Saw WG303E
7
SYMBOLS
Read the manual
WARNING
Wear ear protection
Wear eye protection
Wear dust mask
Gloves with saw protection
Boots with saw protection, steel toe-
cap and non-slip sole
Correct Direction of Cutting-Teeth
Chain stop
Tip contact may cause the guide
bar to move suddenly upward and
backwards, which may cause serious
injury to user.
Contact of the guide bar tip with any
object should be avoided
Do not use one handed when
operating the chain saw.
Always use two hands when
operating the chain saw.
Double insulation. When servicing,
use only identical replacement parts.
Do not expose to rain
Remove plug from the mains
immediately if the cable is damaged
or cut.
RCM approval mark
2
nd
cut overbuck (2/3 diameter) to
meet 1
st
cut (to avoid pinching)
1
st
cut underbuck
(1/3 diameter) to
avoid splintering
Figure 5 – Log supported on end
1
st
cut overbuck (1/3 diameter)
to avoid splintering
2
nd
cut underbuck (2/3 diameter)
to meet 1
st
cut (to avoid pinching)
Figure 6 – Log supported both ends
Stand on uphill side when cutting because log may roll
Figure 7 – Bucking a log

Chain Saw WG303E
8
3
14
20
17 21
18
13 14 15 16
7
8
9
10
11
12
22
23
19
456
2
1

Chain Saw WG303E
9
1. REAR HANDLE
2. ON/OFF SWITCH
3. LOCK-OFF BUTTON
4. OIL FILLER CAP
5. CHAIN STOP LEVER (HAND GUARD)
6. FRONT HANDLE
7. BAR
8. CHAIN
9. GRIPPING TEETH
10. CHAIN TENSIONING KNOB
11. CHAIN COVER
12. BAR AND CHAIN STORAGE/TRANSPORTATION COVER
13. DRIVE SPROCKET
14. CHAIN DIRECTION SYMBOL
15. BAR LOCATING TABS
16. OIL OUTLET
17. FASTENING BAR BOLT
18. BAR TENSIONING PLATE
19. OIL LEVEL WINDOW
20. CHAIN CATCH
21. BAR CLAMP
22. EXTENSION CORD HOLDER
23. REAR HAND GUARD
Not all the accessories illustrated or described are included in standard delivery.

Chain Saw WG303E
10
TECHNICAL DATA
Type WG303E (3- designation of machinery, representative of Chain Saw)
Voltage 220-240V~50/60Hz
Rated power 2000W
Bar length 400mm
Chain speed 12m/s
Oil tank capacity 200ml
Chain pitch 3/8”
Number of chain links 57
Chain gauge 0.05”
Saw chain type ES:91VG
Bar type ES:160SDEA041
Weight (chain & bar included) 4.8kg
Protection class /II
ACCESSORIES
Lubrication oil 100ml
Blade protection cover 1
Chain 1
Bar 1
We recommend that you purchase your accessories from the same store that sold you the tool.
Use good quality accessories marked with a well-known brand name. Choose the type according
to the work you intend to undertake. Refer to the accessory packaging for further details. Store
personnel can assist you and offer advice.