WORX WU434 User Manual

SAFETY AND OPERATING MANUAL

ORIGINAL INSTRUCTIONS

CIRCULAR SAW

WU434 WU434 .1

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General power tool safety
warnings

Warning! Read all safety warnings and all instructions.

Failure to follow the warnings and instructions 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 mains­operated (corded) power tool or battery-operated (cordless) power
tool.

WORK AREA SAFETY

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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.

ELECTRICAL SAFETY

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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.

PERSONAL SAFETY

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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 personal protective equipment. Always wear eye
protection. Protective equipment such as dust mask, non-skid

safety shoes, hard hat, or hearing protection used for appropriate
conditions will reduce personal injuries.

c) 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.

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

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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 dust collection can reduce dust-related

hazards.

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.

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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 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

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.

Additional safety rules for your
circular saw

1

Always wear a dust mask, hearing protection and eye protection.

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Only use saw blades recommended in the specification.

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Do not use any abrasive wheels.

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Use only blade diameter(s) in accordance with the markings.

SAFETY INSTRUCTIONS FOR ALL SAWS
a) DANGER: Keep hands away from cutting area and the
blade. Keep your second hand on auxiliary handle, or motor
housing. If both hands are holding the saw, they cannot be cut by

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the blade.
b) Do not reach underneath the workpiece. The guard cannot
protect you from the blade below the workpiece.
c) Adjust the cutting depth to the thickness of the workpiece.
Less than a full tooth of the blade teeth should be visible below the
workpiece.

d) Never hold piece being cut in your hands or across your
leg. Secure the workpiece to a stable platform. It is important

to support the work properly to minimize body exposure, blade
binding, or loss of control.

e) Hold power tool by insulated gripping surfaces when
performing an operation where the cutting tool may contact
hidden wiring or its own cord. Contact with a “live” wire will

also make exposed metal parts of the power tool “live” and shock
the operator.

f) When ripping always use a rip fence or straight edge guide.

This improves the accuracy of cut and reduces the chance of blade
binding.

g) Always use blades with correct size and shape (diamond
versus round) of arbor holes. Blades that do not match the

mounting hardware of the saw will run eccentrically, causing loss
of control.
h) Never use damaged or incorrect blade washers or bolt. The
blade washers and bolt were specially designed for your saw, for
optimum performance and safety of operation.

FURTHER SAFETY INSTRUCTIONS FOR ALL SAWS
Causes and operator prevention of kickback:

Kickback is a sudden reaction to a pinched, bound or misaligned
saw blade, causing an uncontrolled saw to lift up and out of the

workpiece toward the operator. When the blade is pinched or
bound tightly by the kerf closing down, the blade stalls and the
motor reaction drives the unit rapidly back toward the operator. If
the blade becomes twisted or misaligned in the cut, the teeth at
the back edge of the blade can dig into the top surface of the wood
causing the blade to climb out of the kerf and jump back toward the
operator.
Kickback is the result of saw misuse and/ or incorrect operating
procedures or conditions and can be avoided by taking proper
precautions as given below.

a) Maintain a firm grip with both hands on the saw and
position your arms to resist kickback forces. Position your
body to either side of the blade, but not in line with the blade.

Kickback could cause the saw to jump backwards, but kickback
forces can be controlled by the operator, if proper precautions are
taken.

b) When blade is binding, or when interrupting a cut for any
reason, release the trigger and hold the saw motionless in
the material until the blade comes to a complete stop. Never
attempt to remove the saw from the work or pull the saw
backward while the blade is in motion or kickback may occur.

Investigate and take corrective actions to eliminate the cause of
blade binding.

c) When restarting a saw in the workpiece, center the saw
blade in the kerf and check that saw teeth are not engaged
into the material. If saw blade is binding, it may walk up or

kickback from the workpiece as the saw is restar ted.

d) Support large panels to minimize the risk of blade pinching
and kickback. Large panels tend to sag under their own weight.

Supports must be placed under the panel on both sides, near the

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line of cut and near the edge of the panel.
e) Do not use dull or damaged blades. Unsharpened or
improperly set blades produce narrow kerf causing excessive
friction, blade binding and kickback.

f) Blade depth and bevel adjusting locking levers must be
tight and secure before making cut. If blade adjustment shifts

while cutting, it may cause binding and kickback.

g) Use extra caution when making a “plunge cut” into
existing walls or other blind areas. The protruding blade may

cut objects that can cause kickback.

SAFETY INSTRUCTIONS FOR PLUNGE- TYPE SAW
a) Check lower guard for proper closing before each use. Do
not operate the saw if lower guard does not move freely and
close instantly. Never clamp or tie the lower guard into the
open position. If saw is accidentally dropped, lower guard may be

bent. Raise the lower guard with the retracting handle and make
sure it moves freely and does not touch the blade or any other part,
in all angles and depths of cut.

b) Check the operation of the lower guard spring. If the guard
and the spring are not operating properly, they must be
serviced before use. Lower guard may operate sluggishly due to

damaged parts, gummy deposits, or a build-up of debris.

c) Lower guard may be retracted manually only for special
cuts such as “plunge cuts” and “compound cuts.” Raise
lower guard by retracting handle and as soon as blade enters
the material, the lower guard must be released. For all other

sawing, the lower guard should operate automatically.

d) Always observe that the lower guard is covering the blade
before placing saw down on bench or floor. An unprotected,

coasting blade will cause the saw to walk backwards, cutting
whatever is in its path. Be aware of the time it takes for the blade
to stop after switch is released.