Worx Professional WU334 User manual

RotaRy HammeR WU334
ORIGINAL INSTRUCTIONS
SAFETY AND OPERATING MANUAL

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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
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.
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.
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.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 these devices can reduce dust related hazards.
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
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
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
hammer
Wear ear protectors. Exposure to noise can cause hearing loss.
Use auxiliary handle(s), if supplied with the tool. Loss of control
can cause personal injury.
Hold power tool by insulated gripping surfaces, when
performing an operation where the cutting accessory may
contact hidden wiring or its own cord. Cutting accessory
contacting a “live” wire may make exposed metal parts of the power
tool “live” and could give the operator an electric shock.
Always wear a dust mask.
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To reduce the risk of injury, user must read instruction manual
Warning
Wear eye protection
Wear dust mask
Wear ear protection
Double insulated
Waste electrical products should not be disposed of with
household waste. Please recycle where facilities exist. Check
with your Local Authority or retailer for recycling advice.

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Component list
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SDS-plus chuck
Depth gauge
Function mode selection switch
Grease box cover
Anti-vibration handle
On / off switch
Thumbwheel switch for speed preselection/impact frequency
preselection
Auxiliary handle
Not all the accessories illustrated or described are included in
standard delivery.
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Technical data
Type WU334 (330~359-designation of machinery,
representative of Rotary Hammer Drill)
Voltage 220-240V~50/60Hz
Power input 900W
No load speed 0-720/min
Impact rate 0-3500bpm
Impact energy 5.5J
Chuck type SDS-plus
Max drilling capacity
Steel 13mm
Masonry 32mm
Wood 40mm
Protection class /II
Machine weight 4.9kg
Noise information
A weighted sound pressure LPA:91dB(A)
A weighted sound power LWA:102dB(A)
KPA&KWA 3.0dB(A)
Wear ear protection when sound pressure over 80dB(A)
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Vibration information
Vibration total values (triax vector sum) determined according to
EN 60745:
Hammer drilling into concrete
Vibration emission value
ah,HD=15.3m/s2
Uncertainty K=1.5m/s2
Chiselling
Vibration emission value
ah,Cheq=12.9m/s2
Uncertainty K =1.724m/s²
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 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
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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.
Helping to minimise your vibration exposure risk.
ALWAYS use sharp chisels, drills.
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 100C or less.
Plan your work schedule to spread any high vibration tool use across
a number of days.
Accessories
Auxiliary handle 1
Depth gauge 1
40g oil (for the shank of the bit) 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.
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Operating instructions
Note: Before using the tool, read the instruction book carefully.
INTENDED USE
The machine is intended for hammer drilling in concrete, brick and
stone as well as for light chiseling work. It is also suitable for drilling
without impact in wood, metal, ceramic and plastic.
Warning! Before any work on the machine itself, pull the
mains plug.
INSERTING AND REMOVING DRILL BITS IN THE SDS-PLUS
CHUCK
Take care that the dust protection cap is not damaged when
changing tools.
1) INSERTING (See Fig. A1)
Clean and lightly grease the bit with the oil provided before inserting.
Insert the dust-free bit into the bit holder with a twisting motion until
it latches.
The bit locks itself. Check the locking by pulling on the tool.
2) REMOVING (See Fig. A2)
Retract back the bit holder locking sleeve (a) and pull out the bit.
Warning!Your newWORX Rotary Hammer Drill generates
powerful forces to get your job done quickly and effectively.These
forces may cause inferior quality SDS bits to break and jam in the
chuck.We therefore recommend that only high quality SDS bits
be used with this tool.
A1
A2
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ATTACHING AND REMOVINGTHE CHUCK
Note: Ensure the Function Mode Selection Switch (3) is not in the
chisel rotation mode( ) or the chuck cannot be removed.
Chuck icons:
“ “unlock
“ “lock
1) REMOVINGTHE CHUCK (See Fig. B1)
Firmly turn the Rotary Sheath(b) as far as possible in the direction
noted by the unlock Icon“ “(clockwise) then pull the chuck(1) off.
After removing, clean the chuck and spindle of any debris fragments
and apply lubrication to the chuck for protection.
2) ATTACHINGTHE CHUCK (See Fig. B2)
Firmly push the Rotary Sheath (b) onto the spindle. Turn it in the
direction noted by the lock Icon” “ (clockwise) , while pushing the
chuck until you hear a locking noise of a “click”.
Warning!When attaching the Chuck make sure your fingers
don’t get pinched.
After locking, the Rotary Sheath will return to the initial position. Pull on
the chuck to make sure it has properly locked itself into place before
drilling.
ADJUSTINGTHE AUXILIARY HANDLE (See Fig. C)
For your personal safety we recommend using the auxiliary handle at
all times.
To adjust the handle, rotate the bottom of the handle anti-clockwise
and rotate the handle around the hammer collar until the handle is in
the desired position. Tighten fully.
ANTI-VIBRATION HANDLE
The Anti-vibration handle reduces the vibrations, making operation
more comfortable and secure.
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c
C
B1
B2
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USING THE DEPTH GAUGE (See Fig. C)
The Depth Gauge(2) can be used to set a constant depth to the drill.
Fit the drill bit into the chuck. Loosen the depth gauge by rotating
the locking screw (c) anti-clockwise. Slide the depth gauge until the
distance between the depth gauge end and the drill bit end is equal
to the depth of hole/screw you wish to make. Then clamp the depth
gauge by rotating the locking screw (c) clockwise.
ON/OFF SWITCHWITHVARIABLE SPEED CONTROL (See Fig. D)
Depress to start and release to stop your tool. This tool has a variable
speed switch that delivers higher speeds with increased trigger
pressure - speed is controlled by varying the pressure applied to the
switch.
VARIABLE SPEED SELECTOR
The Thumbwheel Switch (7) allows you to vary the speed/impact
frequency of the rotary hammer enabling the optimum speed/impact
frequency to be selected for various uses. The speed increases as
you turn the switch right and decreases as turn left (1 being slowest
and 6 fastest).
FUNCTION MODE SELECTION (See Fig. E )
The operation of the gearbox for each application is set with the
function mode selection switch (d2). To change between functions,
depress the unlocking button (d1) and rotate the selector to the
desired operating mode.
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d2
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For drilling into steel, wood and
plastics choose the Rotary drilling
position.
For simultaneous drilling and
impacting of concrete or masonry,
choose the Hammer drilling
position.
Chisel rotation position for
adjustment of the chiselling
position.(Non-work position)
For impacting only - for light
chipping, chiseling and demolition
applications choose the Hammer
position.
Warning!The operating mode selector switch may be
actuated only at a standstill.

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LUBRICATION MACHINE (See Fig. F)
The machine is grease-lubricated. A grease refill is only required
during hammer work efficiency is low. Open the grease box lid at
the top of the hammer using the pin spanner. Then refill approx 30g
grease.
Caution: Keep the container of grease away from children.
REPLACETHE BRUSHES (See Fig. G1,G2,G3)
When the resin insulating tip (g) inside the carbon brush (h) is
exposed to contact the commutator (f) , it will automatically
shut off the motor. When this occurs, both carbon brushes
should be replaced as following steps:
1) Disconnect the plug from the power supply.
2) Unscrew the carbon brush cap (e) with screwdriver.
3) When brushes need replacement always renew both brushes.
4) Completely screw down the carbon brush cap. Check that the tool
is working. Before use, allow it run for a few minutes to enable the
brushes to settle.
CONSTANT ELECTRONIC CONTROL
Constant electronic control holds the speed constant at no-load and
under load, and ensures uniform working performance.
OVERLOAD PROTECTION
If the tool insert becomes caught or jammed, the drive to the drill
spindle is interrupted. Because of the forces that occur, always
hold the power tool firmly with both hands and provide for a secure
stance.
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G3
G1F
G2
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Working hints for your tool
Reduce the pressure on the drill bit when it is about to break through.
This will prevent the drill from jamming.
When drilling a large hole, first drill a pilot hole using a smaller drill bit.
Always apply pressure to your drill bit in a straight line, and if possible
at right angles to the workpiece.
Never change the operating mode whilst the drill is running.
Do not apply excessive pressure to the tool when chiseling. Expressive
force does not speed up the work.
Maintenance
Remove the plug from the socket before carrying out any
adjustment, servicing 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.
Trouble shooting
The following table gives checks and actions that you can perform if
your machine does not operate correctly.
If these do not identify/solve the problem, contact WORX Customer
Service.
I would add a comment here to again recommend that you apply
grease to the shank of every drill bit used.
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Symptom Possible Cause Remedy
Machine fails to
operate
No power supply to
machine
Turn power on
Use another socket
The power
and hammer
efficiency of the
machine is low.
Machine may be cold
Warm up the machine
for 1-2 minutes until it
reaches a proper working
temperature
Your drill bit does not slide
freely in the chuck
Clean the dust and debris
inside the chuck; Grease
the shank of the bit if
necessary.
Your drill bit will
not fit into the
chuck easily
The chuck is dirty with
dust and debris.
Clean the dust and debris
from inside the chuck
The shank of the bit is
damaged or distorted Change a new bit
A drill bit has broken and
the shank has remained
in the chuck
Remove the chuck, and
take out the bit as shown in
Fig.H, then clean the chuck
inside.
You cannot
remove your drill
bit from the chuck
The shank of the bit is
damaged or distorted;
The chuck is dirty with
dust and debris.
Remove the chuck, and
take out the bit as shown in
Fig.H, then clean the chuck
inside.

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.
Connect
Blue to N
(neutral)
Outer sleeve
firmly clamped
Cable grip
Brown L (live)
13 Amp fuse approved
to BS1362
Warning!
Never connect live
or neutral wires to
the earth terminal
of the plug. Only
fit an approved
13ABS1363/A plug
and the correct
rated fuse.
Plug replacement
(UK & Ireland only)
If you need to replace the fitted plug then follow the instructions
below.
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.

DECLARATION OF CONFORMITY
We,
Positec Power Tools (Europe) Ltd, PO Box 152,
Leeds, LS10 9DS, UK
Declare that the product,
Description WORX Rotary hammer
Type WU334 (330~359-designation of machinery, representative
of Rotary Hammer Drill)
Function Hammering various materials
Complies with the following directives,
Machinery Directive 2006/42/EC
Electromagnetic Compatibility Directive 2004/108/EC
RoHS Directive 2011/65/EU
Standards conform to
EN 55014-1 EN 55014-2 EN 61000-3-2
EN 61000-3-3 EN 60745-2-6 EN 60745-1
The person authorized to compile the technical file,
Name Russell Nicholson
Address Positec Power Tools (Europe) Ltd, PO Box 152,
Leeds, LS10 9DS, UK
2012/ 05 /16
Leo Yue
POSITEC Quality Manager
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Copyright © 2012, Positec. All Rights Reserved.
2PDH06PPK11002A1