SAFETY AND OPERATING MANUAL
ORIGINAL INSTRUCTIONS
Finishing sander WU643 WU644
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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 mains-operated
(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 and 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.
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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.
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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.
Use safety equipment. Always wear eye protection.Protective
b)
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 offposition 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
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.
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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.
POWER TOOL USE AND CARE
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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
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.
SERVICE
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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 points for your
finishing sander
Remove the plug from the socket before carrying out any
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adjustment, servicing or maintenance.
Fully unwind cable drum extensions to avoid potential
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overheating.
When an ex tension cable is required you must ensure it has
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the correct ampere rating for your power tool and is in a safe
electrical condition.
Ensure your mains supply voltage is same as indicated on the
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rating plate.
Your tool is double insulated for additional protection against a
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possible electrical insulation failure within the tool.
Always check walls, floors and ceilings to avoid hidden power
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cables and pipes.
After long working periods external metal parts and accessories
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could be hot.
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If possible, ensure the workpiece is firmly clamped to prevent
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movement.
Your finishing sander is a hand held tool, do not clamp your
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finishing sander.
Before sanding, check the area is free of nails, screws, etc.
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Never stop the finishing sander by applying a force to the
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baseplate.
Only use paper in good condition. Do not use torn or worn paper.
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Do not sand material containing asbestos due to a health risk.
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Do not sand lead based paint due to the risk of lead poisoning.
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Do not eat or drink in the working area of the sander.
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Do not allow people to enter the working area without wearing
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a dust mask.
Where possible, seal off the working area to contain the dust for
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later removal.
Your tool is designed for dry sanding only, not wet sanding.
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Your tool is designed for general purpose light polishing of
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wood and metals.
Do not sand magnesium material due to the risk of fire.
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Always wear safety glasses or eye shields when using the
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sander. Everyday eyeglasses have only impact-resistant lenses;
they are NOT safety glasses. Following this rule will reduce the
risk of serious personal injury.
Always wear hearing protection during extended periods of
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operation. Following this rule will reduce the risk of serious
personal injur y.
Harmful/toxic dusts will arise from sanding e.g. lead painted
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surfaces, woods and metals. Contact with or inhalation of these
dusts can endanger the health of operator and bystanders.
Always use eye glasses and dust mask.
Warning: Some dust particles created by power sanding,
sawing, grinding, drill and other construction jobs contain
chemicals known to cause cancer, birth defects or other
reproductive harm. Some examples of these chemicals are:
Lead from lead-based paints.
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Crystalline silica from bricks and cement and other masonry products.
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Arsenic and chromium from chemically treated lumber.
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Your risk from these exposures varies, depending upon how often
you do this type of work.
To reduce your exposure to these chemicals:
Work in a well-ventilated area.
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Work with approved safety equipment, such as those dust masks
that are specially designed to bag microscopic particles.
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Symbols
To reduce the risk of injury, user must read instruction manual
Double insulation
Warning
Wear ear protection
Wear eye protection
Wear dust mask
Waste electrical products should not be disposed of with
household waste. Please recycle where facilities exist. Check
with your Local Authorit y or retailer for recycling advice.
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Component list
4
10
3
2
1
9 8 7 6 5
11
1
On-off switch
2
Variable speed control dial (only for WU644)*
3
Lock-on button
4
Hand grip area
5
Clamp lever lock
6
Sanding paper clamp
7
Clamp lever
8
Base plate
9
Hook and loop system
10
Paper punch
11
Dust bag
12
Dust extraction adaptor (See Fig. C)
*Not all the accessories illustrated or described are included in
standard delivery.
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Technical data
Vibration Information
Description WORX Finishing sander
Typ e WU643 WU644 (635-644-designation of machinery,
representative of finishing sander)
Model number WU643 WU644
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Rated voltage 220V-240V~50Hz 220V-240V~50Hz
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Rated input power 300W 300W
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Rated no load speed 12000/min 6000-12000/min
Base plate size 92x180mm 92x180mm
•
Orbital diameter 2.4mm 2.4mm
•
•
Protection class
•
Machine weight 2.0Kg 2.0Kg
/II
/II
Noise and vibration data
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A weighted sound pressure 68.4dB(A)
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A weighted sound power 79.4dB(A)
•
KpA & KwA 3.0dB(A)
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Wear ear protection when sound pressure is over 80dB( A)
Vibration total values (triax vector sum) determined according to
•
EN 60745:
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Typical weighted vibration
Warning: The vibration emission value during actual use of the
power tool can differ from the declared value depending on the ways
in which the tool is used dependant on the following examples and
other variations on how the tool is used:
How the tool is used and the materials being cut or drilled.
The tool being in good condition and well maintained
The use the correct accessory for the tool and ensuring it is sharp and
in good condition.
The tightness of the grip on the handles and if any anti vibration
accessories are used.
And the tool is being used as intended by its design and these instructions.
This tool may cause hand-arm vibration syndrome if its use is not
adequately managed.
Warning: To be accurate, an estimation of exposure level in
the actual conditions of use should also take account of all parts of
the operating cycle such as the times when the tool is switched off
and when it is running idle but not actually doing the job. This may
significantly reduce the exposure level over the total working period.
Vibration emission value a
Uncertainty K = 1.5m/s²
= 11.77m/s²
h
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Helping to minimise your vibration exposure risk.
ALWAYS use sharp chisels, drills and blades.
Maintain this tool in accordance with these instructions and keep well
lubricated (where appropriate).
If the tool is to be used regularly then invest in anti vibration accessories.
Avoid using tools in temperatures of 10oC or less.
Plan your work schedule to spread any high vibration tool use across a
number of days.
Accessories
Dust bag 1
•
•
Dust extraction adaptor 1
•
Sanding paper (120#) 1
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Paper punch hole 1
If using sanding paper without dust holes, you must use the
paper punch to make holes.
Sanding Paper size:
93x230mm for no hook & loop (Clamp only)
93x182mm for hook & loop
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.
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A-2
A-1
Intended use
NOTE:Before using the tool, read the instruction book carefully.
INTENDED USE
The machine is intended for dry sanding of wood, plastic, filler
and coated surfaces.
REPLACING THE SANDING PAPER
Before any work on the machine itself, pull the mains plug.
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SELECTING THE SANDING PAPER
Depending on the material to be worked, different sanding paper
qualities are to be used: Use coarse grit paper to sand rough
surfaces, medium grit for smooth surfaces and fine grit for the final
surfaces.
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REPLACING THE SANDING PAPER
Before placing on a new sanding paper, free the base plate (8) from
dust and dirt.
To ensure optimum dust extraction, the holes of the sanding paper
must match with those of the base plate.
1) Sanding Paper with Hook & Loop System (See Fig. A-1)
The sanding papers are placed directly onto the base plate (8). The
hole pattern in the sanding plate and sanding paper must match.
Before placing on the sanding paper, free the base plate (8) from
dust/ debris by lightly tapping against it.
2) Sanding Paper without Hook & Loop System (See Fig. A-2)
Lightly lift the clamp lever (7) and unlatch it.
Slide the sanding paper under the sand paper clamp and reinsert the
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clamp lever (7).
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E
C B
F D
Make sure that the sanding paper faces firmly against the base plate
(8). Fold the sanding paper around and clamp the other end in the
same manner.
Sanding paper without holes, e. g. from rolls or by the meter, can be
punctured with the paper punch (10) for use with dust extraction (See
Fig. B).
DUST EXTRACTION
Dust extraction prevents large accumulation of dust, high
concentrations of dust in the ambient air and facilitates disposal.
For long periods of working with wood or for commercial use on
materials that produce dust that is detrimental to health, the machine
is to be connected to a suitable external dust extraction device.
USING THE DUST EXTRACTION ADAPTER (See Fig. C)
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Your sander is equipped with a dust extraction adapter (12), which is
designed for collecting dust task. Insert the dust adapter (12) into the
rear dust outlet of sander. Then pull the dust adapter and make sure it
is tightened securely on the dust outlet. Then connect the hose of a
vacuum cleaner.
First please turn on the vacuum cleaner, and then turn on the sander.
If you stop sanding, first turn off the sander, then turn off your
vacuum cleaner.
DUST BAG (See Fig D, E)
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For small sanding jobs, a paper dust bag can be used.
Always operate your sander with the dust bag fitted. For the best
performance always empty the dust bag in time. Open the zip and
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empty the dust from the bag. To remove the bag slide the mounting
bracket out and away from the sander(See Fig D). To refit the bag,
firmly push the mounting bracket into the location on the sander
housing. ( See Fig. E).
Empty or replace dust bag regularly to ensure optimum dust
extraction.
Operating Instructions
SWITCHING ON AND OFF (See Fig. F)
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To start the machine, press the On/Off switch (1) and keep it
depressed. Lock the pushed On/Off switch by pressing the lock-on
button ( 3). To switch off the machine, release the On/Off switch (1).
When locked on with the switch lock-on button (3), briefly press the
On/ Off switch (1) and then release.
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VARIABLE SPEED CONTROL (ONLY FOR WU644)
With the variable speed control (2), the required speed can be
selected (also while running).
The required speed is dependent on the material and is to be
determined by a practical trial.
After longer periods of working at low speed, allow the machine to
cool down by running it for approx. 3 minutes at maximum speed
with no load.
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Grain
Sanding work
Sanding down
varnishes
Stripping paint 40 120 9800~11000
Touching up
paintwork
Sanding wood 60 240 7600~11000
Machining veneer 180 400 8700~11000
Sanding aluminium 80 240 7600~11000
Derusting metal 40 120 9800~11000
Sanding metal and
steel
Sanding plexiglass 180 400 6000~8700
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GRIPPING SURFACE
The gripping surface (4), attached on the upper side of the machine,
increases the safety against slipping off thus supplying a better grip
and handling of the machine.
At the same time, the rubber coating achieves a vibration-absorbing
effect.
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OPERATING INSTRUCTIONS
Warning: Always wait until the machine has come to a
complete stop before placing it down. The tool insert can jam and
Coarse
sanding
180 400 8700~11000
120 120 7600~10000
120 240 9800~11000
Precision
sanding
Speed
setting(opm)
lead to loss of control over the power tool.
The removal performance when sanding is determined primarily by
the selection of the sanding paper and the speed.
Excessive sanding pressure does not lead to increased sanding
capacity, but to increased wear of the machine and the sanding
pa pe r.
A sanding paper that has been used for metal should not be used for
other materials.
Working hints for your finishing
sander
If your power tool becomes too hot, especially when used at low
speed, set the speed to maximum and run it with no load for 2-3
minutes to cool the motor. Avoid prolonged usage at very low speeds.
Always use sand paper that is suitable for the material you want to
sand.
Always ensure the work-piece is firmly held or clamped to prevent
movement.
Any movement of the material may affect the quality of the sanding
finish.
Start your sander before sanding and turn it off only after you stop
sanding. For the best results, sand wood in the direction of the grain.
Do not start sanding without having the sandpaper fitted.
Do not allow the sand paper to wear away it will damage the baseplate. The guarantee does not cover base-plate wear and tear.
Use coarse grit paper to sand rough surfaces, medium grit for smooth
surfaces and fine grit for the final surfaces. If necessary, first make a
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test run on scrap material.
Connect
Blue to N
(neutral)
Outer sleeve
firmly clamped
Cable grip
Brown L (live)
13 Amp fuse approved
to BS1362
Use only good quality sand paper.
The sand paper controls the sanding efficiency, not the amount of
force you apply to the tool. Excessive force will reduce the sanding
efficiency and cause motor overload. Replacing the sand paper
regularly will maintain optimum sanding efficiency.
Plug replacement
(UK & Ireland only)
If you need to replace the fitted plug then follow the instructions
below.
Maintenance
Remove the plug from the socket before carrying out any
adjustment, servicing or maintenance.
Your power tool requires no additional lubrication or maintenance.
There are no user serviceable parts in your power tool. Never use
water or chemical cleaners to clean your power tool. Wipe clean with
a dry cloth. Always store your power tool in a dry place. Keep the
motor ventilation slots clean. Keep all working controls free of dust.
Occasionally you may see sparks through the ventilation slots. This is
normal.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons in order
to avoid a hazard.
Environmental protection
Waste electrical products should not be disposed of with
household waste. Please recycle where facilities exist. Check
with your local authorities or retailer for recycling advice.
IMPORTANT
The wires in the mains lead are colored in accordance with the
following code:
BLUE =NEUTRAL BROWN = LIVE
As the colors of the wires in the mains lead of this appliance may not
correspond with the colored markings identifying the terminals in
your plug, proceed as follows. The wire which is colored blue must
be connected to the terminal which is marked with N. The wire which
is colored brown must be connected to the terminal which is marked
with L.
Note: If a moulded plug is fitted and has to be removed take great
care in disposing of the plug and severed cable, it must be destroyed
to prevent engaging into a socket.
Warning!
Never connect live
or neutral wires to
the earth terminal
of the plug. Only
fit an approved
13A BS1363/A
plug and the
correct rated fuse.
EC DECLARATION OF CONFORMITY
We,
Positec Power Tools (Europe) Ltd, PO Box 152,
Leeds, LS10 9DS, UK
Declare that the product,
Description WORX Finishing sander
Typ e WU643 WU644 (635-644-designation of machinery,
representative of finishing sander)
Function Removing surface material using an abrasive medium
Complies with the following Directives,
•
EC Machiner y Directive 2006/42/EC
•
EC Low Voltage Directive 2006/95/EC
•
EC Electromagnetic Compatibility Directive 2004/108/EC
Standards conform to
EN 55014-1 EN 55014-2 EN 61000-3-2
EN 61000-3-3 EN 60745-1 EN 60745-2-4
The person authorized to compile the technical file,
Name: Russell Nicholson
Address: Positec Power Tools (Europe) Ltd, PO Box 152,
Leeds, LS10 9DS, UK
2011 /11 / 24
Leo Yue
POSITEC Quality Manager
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Copyright © 2012, Positec. All Rights Reserved.
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