Worx WX390 Installation manual

SAFETY AND OPERATING MANUAL
ORIGINAL INSTRUCTIONS
WX390 WX390.X
Cordless Rotary Hammer

21
5
12
11 10
6
3
4
7
8
9

D2
1
2
C2
SDS-plus
D4
B
F
A1
2
1
HI
19
E
A2
C1
SDS-plus
2
1
RoundHex
D1
19
G
1
2
RoundHex
D3
1. DUST PROTECTION CAP
2. TOOL HOLDER LOCKING SLEEVE
3. FORWARD AND REVERSE ROTATION CONTROL
4. ONOFF SWITCH
5. BATTERY PACK
6. HAMMER DRILL DRILL SELECTOR DIAL
7. BATTERY PACK RELEASE CLIP
8. LED LIGHT
9. SDS KEYLESS CHUCK ADAPTOR
10. PH2 SCREWDRIVER BIT
11. HSS METAL DRILL BIT 5mm,6mm)*
12. SDS PLUS DRILL BITS 6mm,8mm)*
* Not all the accessories illustrated or described are included in standard delivery.

D2
1
2
C2
SDS-plus
D4
B
F
A1
2
1
HI
19
E
A2
C1
SDS-plus
2
1
RoundHex
D1
19
G
1
2
RoundHex
D3
1. DUST PROTECTION CAP
2. TOOL HOLDER LOCKING SLEEVE
3. FORWARD AND REVERSE ROTATION CONTROL
4. ONOFF SWITCH
5. BATTERY PACK
6. HAMMER DRILL DRILL SELECTOR DIAL
7. BATTERY PACK RELEASE CLIP
8. LED LIGHT
9. SDS KEYLESS CHUCK ADAPTOR
10. PH2 SCREWDRIVER BIT
11. HSS METAL DRILL BIT 5mm,6mm)*
12. SDS PLUS DRILL BITS 6mm,8mm)*
* Not all the accessories illustrated or described are included in standard delivery.

D2
1
2
C2
SDS-plus
D4
B
F
A1
2
1
HI
19
E
A2
C1
SDS-plus
2
1
RoundHex
D1
19
G
1
2
RoundHex
D3

7
WX390 WX390.X
Cordless Rotary Hammer
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.
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 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.
4. POWER TOOL USE AND CARE
a) Do not force the power tool. Use the
correct power tool for your application.

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WX390 WX390.X
Cordless Rotary Hammer
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.
5. BATTERY TOOL USE AND CARE
a) 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.
b) Use power tools only with specifically
designated battery packs. Use of any other
battery packs may create a risk of injury and
fire.
c) 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.
d) 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.
6. 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.
HAMMER SAFETY WARNINGS
1. Wear ear protectors. Exposure to noise can
cause hearing loss.
2. Use auxiliary handles, If supplied with
the tool. Loss of control can cause personal
injury.
3. 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.
SAFETY WARNINGS FOR
BATTERY PACK
a) Do not dismantle, open or shred cells a)
Do not dismantle, open or shred cells or
battery pack.
b) Do not short-circuit a battery pack. Do
not store battery packs haphazardly in
a box or drawer where they may short-
circuit each other or be short-circuited
by conductive materials. 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.
c) Do not expose battery pack to heat or fire.

9
WX390 WX390.X
Cordless Rotary Hammer
Avoid storage in direct sunlight.
d) Do not subject battery pack to mechanical
shock.
e) In the event of battery leaking, do not
allow the liquid to come into contact with
the skin or eyes. If contact has been made,
wash the affected area with copious
amounts of water and seek medical
advice.
f) Keep battery pack clean and dry.
g) Wipe the battery pack terminals with a
clean dry cloth if they become dirty.
h) Battery pack needs to be charged before
use. Always refer to this instruction and
use the correct charging procedure.
i) Do not maintain battery pack on charge
when not in use.
j) After extended periods of storage, it may
be necessary to charge and discharge
the battery pack several times to obtain
maximum performance.
k) Recharge only with the charger specified
by Worx. Do not use any charger other
than that specifically provided for use
with the equipment.
l) Do not use any battery pack which is not
designed for use with the equipment.
m)Keep battery pack out of the reach of
children.
n) Retain the original product literature for
future reference.
o) Remove the battery from the equipment
when not in use.
p) Dispose of properly.
q) Do not mix cells of different manufacture,
capacity, size or type within a device.
r) Keep the battery away from microwaves
and high pressure.
SYMBOLS
To reduce the risk of injury, user
must read instruction manual
Warning
Wear ear protection
Wear eye protection
Wear dust mask
Batteries may enter water cycle if
disposed improperly, which can
be hazardous for ecosystem. Do
not dispose of waste batteries as
unsorted municipal waste.
Do not burn
Li-I on
Li-Ion batteryThis product has
been marked with a symbol
relating to ‘separate collection’
for all battery packs and battery
pack. It will then be recycled or
dismantled in order to reduce
the impact on the environment.
Battery packs can be hazardous
for the environment and for
human health since they contain
hazardous substances.
Li-I on
Li-I on
Waste electrical products
must not be disposed of with
household waste. Please recycle
where facilities exist. Check with
your local authorities or retailer
for recycling advice.

10
WX390 WX390.X
Cordless Rotary Hammer
Wear protective gloves
Wood
Steel
Concrete
Brickwork
High speed
Low speed
Tool holder
Hex
Make sure the battery is
removed prior to changing ac-
cessories.
Drilling without impact
Hammer Drilling
Screwdriving
RCM marking
ABN: Australian Business
Number. By this number,
business information such as
entity type, status, business
location etc. can be found at
website http://abr.business.
gov.au.
ABN of Positec Australia Pty
Limited is 14 101 682 357
COMPONENT LIST
1. DUST PROTECTION CAP
2. TOOL HOLDER LOCKING SLEEVE
3. FORWARD AND REVERSE ROTATION
CONTROL
4. ONOFF SWITCH
5. BATTERY PACK
6. HAMMER DRILL DRILL SELECTOR DIAL
7. BATTERY PACK RELEASE CLIP
8. LED LIGHT
9. SDS KEYLESS CHUCK ADAPTOR
10. PH2 SCREWDRIVER BIT
11. HSS METAL DRILL BIT 5mm,6mm)*
12. SDS PLUS DRILL BITS 6mm,8mm)*
* Not all the accessories illustrated or
described are included in standard delivery.
TECHNICAL DATA
Type WX390 WX390.X(3- designation of
machinery, representative of Hammer Drill)
WX390
WX390.X **
Voltage 20V Max***
No load speed 0-900/min
Impact rate 0-5000bpm

11
WX390 WX390.X
Cordless Rotary Hammer
Impact energy 1.2J
Max.
drilling
capacity
Steel 10mm
Wood 13mm
Concrete 13mm
Brickwork 13mm
Machine weight (bare tool) 1.2kg
**X=1-999, A-Z, M1-M9 there are only used for
different customers, there are no safe relevant
changes between these models.
***Voltage measured without workload. Initial
battery voltage reaches maximum of 20 volts.
Nominal voltage is 18 volts.
SUGGESTED BATTERIES AND
CHARGERS
Category Model Capacity
20V Battery
WA3530.1 3.0Ah
WA3550 1.5 Ah
WA3550.1 1.5 Ah
WA3551 2.0 Ah
WA3551.1 2.0 Ah
WA3553 4.0 Ah
WA3556 5.0Ah
WA3561 2.0Ah
WA3572 2.5Ah
20V Charger
WA3760 0.4 A
WA3869 2.0 A
WA3880 2.0 A
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.
NOISE INFORMATION
A weighted sound pressure LpA: 84dB(A)
A weighted sound power LwA: 95dB(A)
KpA&KwA 3.0dB(A)
Wear ear protection when sound
pressure is over 80dB(A)
VIBRATION INFORMATION
Vibration total values (triax vector sum) deter-
mined according to EN 60745:
Hammer drilling
into concrete
Vibration emission value
ah,HD= 8.51m/s2
Uncertainty K= 1.5m/s²
The declared vibration total value may be used for
comparing one tool with another, and may also be
used in a preliminary assessment of exposure.
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.
Helping to minimize your vibration exposure risk.
ALWAYS use sharp chisels, drills and blades.
Maintain this tool in accordance with these

12
WX390 WX390.X
Cordless Rotary Hammer
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 10°C or less.
Plan your work schedule to spread any high vibra-
tion tool use across a number of days.
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. It is also suitable for
drilling without impact in wood, metal, ceramic and
plastic. Machines with electronic control and right/
left rotation are also suitable for screwdriving.
OPERATION
ACTION FIGURE
Removing The Battery See Fig. A1
Inserting The Battery See Fig. A2
Selecting The Operating Mode See Fig. B
HAMMER DRILLING
Inserting Drill Bits See Fig. C1
Removing Drill Bits See Fig. C2
DRILLING & SCREWDRIVING
Inserting Adaptors See Fig. D1
Inserting Bits into Chuck See Fig. D2
Removing Adaptors See Fig. D3
Removing Bits from Chuck See Fig. D4
On/Off Switch See Fig. E
Switch Lock
NOTE The Switch Trigger Can Be
Locked In The Off Position.
See Fig. F
Forward Rotation Control See Fig. G
Reverse Rotation Control See Fig. H
LED Light See Fig. I
Temperature Dependent
Overload Protection /
Protection Against Deep
Discharging /
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
1. 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 tool. 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, except for the cleaning &
lubrication of the SDS bits and adaptors before
inserting into the chuck. 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.

13
WX390 WX390.X
Cordless Rotary Hammer
ENVIRONMENTAL
PROTECTION
Waste electrical products must not be
disposed of with household waste. Please
recycle where facilities exist. Check with
your local authorities or retailer for recycling
advice.
Positec Australia Pty Limited
10 Corporate Blvd Bayswater , VIC 3153, Australia
DECLARATION OF
CONFORMITY
We,
Positec Germany GmbH
Postfach 32 02 16, 50796 Cologne, Germany
Declare that the product,
Description Worx Cordless Rotary Hammer
Type WX390 WX390.X (3- designation of
machinery, representative of Hammer Drill)
Function Hammering various materials
Complies with the following directives,
2006/42/EC
2011/65/EU&(EU)2015/863
2014/30/EU
Standards conform to
EN 55014-1
EN 55014-2
EN 60745-1
EN 60745-2-6
The person authorized to compile the technical
file,
Name Marcel Filz
Address Positec Germany GmbH
Postfach 32 02 16, 50796 Cologne, Germany
2022/01/12
Allen Ding
Deputy Chief Engineer, Testing & Certification
Positec Technology (China) Co., Ltd
18, Dongwang Road, Suzhou Industrial
Park, Jiangsu 215123, P. R. China

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WX390 WX390.X
Cordless Rotary Hammer
DECLARATION OF
CONFORMITY
We,
Positec (UK & Ireland) Ltd.,
PO Box 6242, Newbury, RG14 9LT, UK
On behalf of Positec declare that the product
Description Battery-operated Hammer
Type WX390 WX390.X (3- designation of
machinery, representative of Hammer Drill)
Function Hammering various materials
Complies with the following directives,
Supply of Machinery (Safety) Regulations
2008
Electromagnetic Compatibility Regulations
2016
The Restriction of the Use of Certain Hazard-
ous Substances in Electrical and Electronic
Equipment Regulations
Standards conform to
BS EN 60745-1, BS EN 60745-2-6, BS EN 55014-1,
BS EN 55014-2
The person authorized to compile the technical
file,
Name Jim Kirkwood
Address Positec (UK & Ireland) Ltd.,
PO Box 6242, Newbury, RG14 9LT, UK
2022/01/12
Allen Ding
Deputy Chief Engineer, Testing & Certification
Positec Technology (China) Co., Ltd
18, Dongwang Road, Suzhou Industrial
Park, Jiangsu 215123, P. R. China

Copyright © 2022, Positec. All Rights Reserved.
AR01241403
www.worx.com
After-sales Service and Application
At www.worx.com you can order spare parts or arrange the
collection of a product in need of servicing or repair.
Tel. Service: 0345 202 9679
E-Mail: [e-mail]