WORX WU381 User Manual

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SAFETY AND OPERATING MANUAL

ORIGINAL INSTRUCTIONS

Cordless rotary hammer

WU381 WU381.9

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 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 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. 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 offposition 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.

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.

BATTERY TOOL USE AND CARE a) Ensure the switch is in the off position before inserting battery pack. Inserting the battery pack into power tools that have the switch

on invites accidents.

b) Recharge only with the charger speciﬁed by the manufacturer.

A charger that is suitable for one type of battery pack may create a risk of ﬁre when used with another battery pack.

c) Use power tools only with speciﬁcally designated battery packs. Use of any other battery packs may create a risk of injury and

ﬁre.

d) When battery pack is not in use, keep it away from other metal objects like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or

a ﬁre.

e) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, ﬂush with water. If liquid contacts eyes, additionally seek medical help.

Liquid ejected from the battery may cause irritation or burns.

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 points for your tool

Remove the battery pack from the hammer before carrying out

adjustments, servicing or maintenance. Do not expose to rain or water.

Charger is for indoor use only.

Do not store the battery pack in temperatures over 40oC.

Always charge the battery pack between temperatures 0oC to 30oC.

Ideal charging temperature is 15oC-25oC. Only use the charger and the battery pack provided, no others.

Avoid short circuit of the battery pack connections (screws & nails).

Do not incinerate or burn the battery pack, it may explode.

Do not charge a damaged battery pack.

Replace any damaged supply cords on your charger in an approved

service centre. Wear ear protectors. Exposure to noise can cause hearing loss.

Use auxiliary handles supplied with the tool. Loss of control can

cause personal injury.

Always wear a dust mask.

Hold power tools by insulated gripping surfaces, when

performing an operation where the cutting accessory may contact hidden wiring. Cutting accessory contacting a ‘live’ wire may

make exposed metal parts of the power tool ‘live’ and could give the operator an electric shock. Persons under 16 years of age are not permitted to operate this

machine. Keep the tool and accessories out of the reach of children.

Remove the plug from the socket before carrying out any adjustment,

servicing or maintenance of the charger. Ensure your mains supply voltage is the same as your charger rating

plate voltage. Always check walls and ceilings to avoid hidden power cables and

pipes. After long working periods, external metal parts and accessories could

be hot. Wear eye protection when operating this tool.

Symbols

To reduce the risk of injury, user must read instruction manual

Warning

Wear ear protection

Wear eye protection

Wear dust mask

Indoor use only

Do not expose to rain or water

Do not burn

Do not dispose of batteries. Return exhausted batteries to your local collection or recycling point

1 2 3 4

567

Component list

Adjustable Depth Gauge

Dust Protection Cap

Tool Holder Locking Sleeve

Function Mode Selection Switch

On/ Off Switch

Forward And Reverse Rotation Control

Battery Pack

Auxiliary Handle

Battery Pack Release Button

*Not all the accessories illustrated or described are included in standard delivery.

Technical data

Noise and vibration data

Typ e WU381 WU381.9 (380-399 designation of machinery, representative of Cordless Rotary Hammer)

Model No. WU381 WU381.9

Voltage 18V

•

No load speed 0-105 0rpm

•

Impact rate 0-4600bpm

•

Impact energy 2.0J

•

Battery type Li-Ion Powershare (WA3522)

•

Charger time 45min --------------

•

Battery capacity 2.6 Ah Li-Ion --------------

•

Battery pack quantit y 2 --------------

Steel 13mm

Max. drilling

•

capacity

Wood 26mm

Masonry 20mm

Machine weight (without

•

batter y)

2.7kg

•

When tested at hammer & drill mode LpA:87dB(A)

•

When tested at hammer & drill mode LwA:98dB(A)

•

3dB considered for hammer & drill mode in guaranteed value

•

Wear ear protection when sound pressure is over 80dB(A)

Vibration total values (triax vector sum) determined according to

•

EN 60745:

Hammer drilling into

•

concrete

•

Chiselling

Vibration emission value

= 13.32m/s

h,HD

Uncertainty K = 1.5m/s²

Vibration emission value a

= 14.70m/s

h,CHeq

Uncertainty K = 1.5m/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.

Accessories

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.

Helping to minimize 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.

Auxiliary handle 1

WU381

•

WU381.9

•

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.

Depth gauge 1

45min charger (WA38 36) 1

battery packs 2

Auxiliary handle 1

Depth gauge 1

Operating instructions

A B

Note: Before using the tool, read the instruction book

carefully.

INTENDED USE

The machine is intended for hammer drilling in concrete, brick and stone. It is also suitable for drilling without impact in wood, metal, ceramic and plastic.

BEFORE PUTTING INTO OPERATION A) CHARGING THE BATTERY PACK

The battery pack charger supplied is matched to the Li-Ion battery installed in the machine. Do not use another battery charger. The Li-Ion battery pack is protected against deep discharging. When the battery pack is empty, the machine is switched off by means of a protective circuit: The chuck no longer rotates. In a warm environment or after heavy use, the battery pack may become too hot to permit charging. Allow time for the battery pack to cool down before recharging. When the battery pack is charged for the ﬁrst time and after prolonged storage. the battery pack will accept a 100% charge after several charge and discharge cycles.

B) TO REMOVE OR INSTALL BATTERY PACK (See Fig. A)

Depress the battery pack release button to release and slide the battery pack out from your tool. After recharge, slide it back into your tool. A simple push and slight pressure will be sufﬁcient.

OP ER ATIO N

INSERTING AND REMOVING DRILL BIT IN SDS

Take care that the dust protection cap (2) is not damaged when changing tools. — INSERTING Clean and lightly oil the bit 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. — REMOVING Retract back the bit holder locking sleeve ( 3) and pull out the bit.

Warning!Your new WORX 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.

AUXILIARY HANDLE (See Fig. B)

Slide the handle onto the hammer and rotate to the desired working position. To clamp the auxiliary handle rotates the handle clockwise. To loosen the auxiliary handle, rotate the handle anti-clockwise.

Warning: Always use the auxiliary handle.

ADJUSTABLE DEPTH GAUGE(See Fig. B)

Fit the drill bit into the chuck. Loosen the depth gauge by rotating the handle anti-clockwise. Slide the depth gauge until the distance between the depth gauge end and the drill end is equal to the depth of hole/screw you wish to make. Then clamp the depth gauge by rotating the handle clockwise.

A B

C D

ON/OFF SWITCH (See Fig. C)

Depress the On/Off switch(5) to start and release it to stop your tool.

— ON/OFF SWITCH WITH VARIABLE SPEED CONTROL

Depress the On/Off switch to start and release it to stop your tool. This tool has a variable speed switch(5 ) that delivers higher speeds with increased trigger pressure - speed is controlled by varying the pressure applied to the switch.

SWITCH LOCK (See Fig. C)

The switch trigger can be locked in the OFF position. This helps to reduce the possibility of accidental starting when not in use. To lock the switch trigger, place the direction of rotation control in the center position.

FORWARD AND REVERSE ROTATION CONTROL (See Fig. C)

With the drill pointing away from you, push the forward/reverse-lever to the left “ “for forward rotation. Push the forward /reverse -lever to the right for reverse rotation “ “.

Warning: Never change the direction of rotation while the tool is

rotating, wait until it has stopped.

FUNCTION MODE SELECTION (See Fig. D)

The operation of the gearbox for each application is set with the function mode selection switch (4). To change between functions, depress the unlocking button (10) and rotate the selector to the desired operating mode.

For simultaneous drilling and impacting of concrete or masonry, choose the Hammer

Warning: The operating mode selector switch may be actuated

only at a standstill.

OVERLOAD PROTECTION When overloaded, the motor comes to a stop. Relieve the load on the machine immediately and allow cooling for approx. 30 seconds at the highest no-load speed.

TEMPERATURE DEPENDENT OVERLOAD PROTECTION

When using as intended for, the power tool cannot be subject to overload. When the load is too high or the allowable battery temperature of 75°C is exceeded, the electronic control switches off the power tool until the temperature is in the optimum temperature range again.

PROTECTION AGAINST DEEP DISCHARGING

The Li-Ion battery is protected against deep discharging by the “Discharging Protection System”. When the batter y is empty, the

drilling position.

For drilling into steel, wood and plastics choose the Rotary drilling position.

For impacting only - for light chipping, chiseling and demolition applications choose the Hammer position.

machine is switched off by means of a protective circuit: The inserted tool no longer rotates.

Working hints for your tool

If your power tool becomes over heated, set the speed to maximum and run no load for 2-3 minutes to cool the motor. SDS-plus tungsten carbide drill bits should always be used for concrete and masonry. When drilling in metal, only use HSS drill bits in good condition. Where possible use a pilot hole before drilling a large diameter hole.

Problem solution

REASONS FOR DIFFERENT CHARGING TIMES

Your charge time can be affected by many reasons which are not defects in your product. If the battery pack is only partly discharged it may be re-charged in less than 1 hour. If the battery pack and ambient temperature are very cold then re-charging may take 1-1.5 hours. If the battery pack is very hot it will not re-charge because the internal temperature safety cutout will prevent it. If the battery pack is very hot you must remove your battery pack from the charger and allow your battery pack to cool ﬁrst to ambient temperature and then recharging can be started. If you charge a second battery pack immediately after the ﬁrst then the charger can be overheated. Always allow at least 15 minutes rest between battery pack charging.

REASONS FOR DIFFERENT BATTERY PACK WORKING TIMES

Charging time problems, having not used a battery pack for a

prolonged time will reduce the battery pack working time. This can be corrected after several charge and discharge operations by charging & working with your drill. Heavy working conditions such as large screws into hard wood will use up the battery pack energy faster than lighter working conditions. Do not re-charge your battery pack below 0oC and above 30oC as this will affect performance.

Maintenance

Remove the battery pack from the tool 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.

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.

Disposal of an exhausted battery pack

To preserve natural resources, please recycle or dispose of the battery pack properly. This battery pack contains Li-Ion batteries.

Consult your local waste authority for information regarding available recycling and/or disposal options. Discharge your battery pack by operating your drill, then remove the battery pack from the drill housing and cover the battery pack connections with heavy-duty adhesive tape to prevent short circuit and energy discharge. Do not attempt to open or remove any of the components.