Wesco WS4269U User manual

Rotary sander EN
WS4269U
(PES360MU)
2

5
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4
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Fig.A Fig.B
Fig.C Fig.D
Fig.E Fig.F
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a
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a
8
2
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PRODUCT SAFETY
WARNING: Some dust created by power sanding,
sawing, grinding, drilling and other construction
activities contains chemicals known to the state of
California 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；
• Arsenic and chromium from chemically-treated
lumber.
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemical: work in a well ventilated
area, and work with approved safety equipment, such
as those dust masks that are specially designed to filter
out microscopic particles.
WARNING: This product can expose you to
chemicals including lead and Di(2-ethylhexyl)
phthalate (DEHP) which are known to the State of
California to cause cancer and birth defects or other
reproductive harm. For more information go to www.
P65Warnings.ca.gov.
GENERAL POWER TOOL SAFETY
WARNINGS
WARNING! Read all safety warnings,
instructions, illustrations and specifications
provided with this power tool. Failure to follow all
instructions listed below 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 electric (corded) power tool or battery-
operated (cordless) power tool.
1. WORK AREA SAFETY
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 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 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

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the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair and clothing 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.
h) Do not let familiarity gained from frequent
use of tools allow you to become complacent
and ignore tool safety principles. A careless
action can cause severe injury within a fraction of a
second.
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 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 remove the battery pack, if detachable,
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 and accessories. 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.
h) Keep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles
and grasping surfaces do not allow for safe handling
and control of the tool in unexpected situations.
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.
SYMBOLS
To reduce the risk of injury, user must
read instruction manual
Double insulation
Warning
Wear ear protection
Wear eye protection
Wear dust mask

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COMPONENT LIST
1. On/off switch
2. Hand grip area
3. Variable speed control
4. Dust box
5. Base plate
6. Sanding paper
7. Vacuum adapter
8. Dust extraction outlet (See Fig. B)
* Not all the accessories illustrated or described are included in standard delivery.
TECHNICAL DATA
Type WS4269U (42 - designation of machinery, representative of Sander)
Rated voltage 120V~60Hz
Power input 3.0A
No load speed 5000-12000 /min
Base size 5”
Orbital diameter 3/32”
Protection class / II
Tool weight 3.57 lbs (1.62kg)
ACCESSORIES
Cyclone box 1
Vacuum adapter 1
80 grit velcro sanding paper 4
100 grit velcro sanding paper 4
120 grit velcro sanding paper 4
We recommend that you purchase your accessories from the same store that sold you the tool. Refer to the accessory
packaging for further details. Store personnel can assist you and offer advice.

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OPERATION INSTRUTIONS
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.
ASSEMBLY
1. FITTING THE HOOK & LOOP SANDING PAPER
(SEE FIG. A)
Align and directly depress the sanding paper onto the
base plate by hand. Firmly press the sander with the
sanding paper against a flat surface to ensure the paper
is secured. The holes on the sanding paper and base
plate should be aligned well.
2. FITTING AND REMOVING THE DUST BOX (SEE FIG.
B)
Your sander is equipped with a dust box. To attach,
insert the dust box into the rear dust extraction outlet
until it is secure. To remove, press the release lever (a)
on both sides of the dust box and slide the dust box out.
CAUTION: To prevent the possibility of sanding
dust or foreign body being thrown into your
face or eyes, never attempt to use your sander
without the dust box properly installed.
3. EMPTY THE DUST BOX (SEE FIG. C)
For more efficient operation, empty the dust box every
5-10mins. This will permit the air to flow through the
box better.
To empty the dust box, first remove it from the dust
extraction outlet, press the button at the rear of the box
to open the back of box, then you can shake the dust out.
4. ATTACHING SANDER TO VACUUM ADAPTER (SEE
FIG. D)
Your sander is equipped with a vacuum adapter, which
is designed for dust collection task. Insert the vacuum
adapter into the rear dust extraction outlet of sander
and ensure it is tightened securely. Then connect the
adapter to the hose of a vacuum cleaner.
While using, 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.
NOTE: Please always connect the adaptor with 32mm
vacuum hose.
OPERATION
1. OPERATING THE ON / OFF SWITCH (SEE FIG. E)
To start your sander, depress the protective cover over
the switch at the position marked “I”.
To stop your sander, depress the protective cover at the
position marked “0”.
2. VARIABLE SPEED CONTROL (SEE FIG. F)
With the variable speed control, 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.
3. USING THE SANDER
The workpiece to be sanded must be secured. If it is
small or it may move during sanding, it must be held in
a vice or suitably clamped.
Be sure to hold the sander firmly whilst it is turned on
and apply it gently to the work, it may “kick” on first
contact. Hold the sander so that it is flat on the work
and move slowly, preferably with a smooth, circular
motion. Regularly check the condition of the sanding
paper and replace when worn for best results.
WORKING HINTS FOR YOUR SANDER
1. 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 sanding paper that is suitable
for the material you want to sand.
2. Always ensure the work-piece is firmly held or
clamped to prevent movement.
3. Any movement of the material may affect the
quality of the sanding finish.
4. 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.
5. Do not start sanding without having the sanding
paper fitted.
6. Do not allow the sanding paper to wear away, it will
damage the base-plate. The guarantee does not
cover base-plate wear and tear.
7. 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 test
run on scrap material.
8. Use only good quality sanding paper.
9. The sanding paper controls the sanding efficiency,
not the amount of force you apply to the tool.

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Excessive force will reduce the sanding efficiency
and cause motor overload. Replacing the sanding
paper regularly will maintain optimum sanding
efficiency.
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 and will not damage your
power tool.
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.
TROUBLESHOOTING
1. If your sander will not operate, check the power at
the mains plug.
2. If the sander does not abrade surface, checking
the sanding paper. If the sanding paper has been
worn, replace the new paper and try again. The
paper must be kept in a dry place, if it is allowed to
become damp, the abrasive particles will lose their
adhesion to the backing paper and will not abrade.
3. If the sander dose not move smoothly, The sanding
paper may be loose, damaged or wrinkled. Replace
and try again.
4. If a fault cannot be rectified return the sander to an
authorized dealer for repair.