Worx WX800.9 Instruction manual

SAFETY AND OPERATING MANUAL

ORIGINAL INSTRUCTIONS

Lithium-Ion cordless
angle grinder

WX800 WX800.9

1

2

3 4

13
12

14

67

5

891011

A1

A2

1

2

A3

C1

B

C2

9

7

10

9

7

10

10

9

7

10

C3

E

2

D

1

F

G

15o-30

o

1. AUXILIARY HANDLE

2. SPINDLE LOCK BUTTON

3. ON / OFF SWITCH

4. BATTERY PACK RELEASE BUTTON

5. BATTERY PACK *

6. WHEEL GUARD FOR GRINDING

7. DISC*

8. SPANNER

9. INNER FLANGE

10. OUTER FLANGE

11. CLAMP ADJUSTMENT NUT

12. SPINDLE

13. GUARD CLAMPING LEVER

14. WHEEL GUARD FOR CUTTING*

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

TECHNICAL DATA

Type WX800 WX800.9 (800—819

-designation of machinery, representative of
Angle Grinder)

WX800 WX800.9

Charger Voltage 100-240V ~ 50/60Hz /

Rated voltage

No load Speed 8600/min

Disc Size 115mm

Disc bore 22mm

Spindle thread M14

Machine weight 1.8kg 1.54kg

**Voltage measured without workload. Initial
battery voltage reaches maximum of 20 volts.
Nominal voltage is 18 volts.

20V

Max**

NOISE INFORMATION

A weighted sound pressure LpA: 86.8dB(A)

A weighted sound power LwA: 97.8 dB(A)

KpA&K

wA

Wear ear protection.

3 dB(A)

VIBRATION INFORMATION

Vibration total values (triax vector sum) determined
according to EN 60745:

Surface
grinding or
abrasive
cutting off

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.

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.
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.

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.
Help 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 100C or less
Plan your work schedule to spread any high vibration
tool use across a number of days.

Vibration emission value
a

= 4,300m/s

h,AG

Uncertainty K = 1.5m/s²

WARNING: The vibration emission value
during actual use of the power tool can differ

WARNING! To be accurate, an estimation of
exposure level in the actual conditions of use

2

ACCESSORIES

WX800 WX800.9

Metal grinding disc 1 1

Wheel guard for grinding

Spanner 1 1

Auxiliary handle 1 1

1 1

5

Lithium-Ion cordless
angle grinder

WX800 WX800.9

2.0Ah Battery(WA3551.1) 2 /

1Hr Charger (WA3860) 1 /

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.

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

6

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. 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.

Lithium-Ion cordless
angle grinder

WX800 WX800.9

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.

SAFETY INSTRUCTIONS
FOR ALL OPERATIONS

SAFETY WARNINGS COMMON FOR GRINDING
OR ABRASIVE CUTTING-OFF OPERATIONS:
a) This power tool is intended to function as

a grinder or cut-off tool. 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.

b) Operations such as sanding, wire brushing,

polishing are not recommended to be
performed with this power tool.

for which the power tool was not designed may create
a hazard and cause personal injury.

c) Do not use accessories which are not

specifically designed and recommended
by the tool manufacturer.

accessory can be attached to your power tool, it does
not assure safe operation.

d) The rated speed of the accessory must

be at least equal to the maximum speed
marked on the power tool.

faster than their rated speed can break and fly apart.

e) The outside diameter and the thickness

of your accessory must be within the
capacity rating of your power tool.

Operations

Just because the

Accessories running

Incorrectly sized accessories cannot be adequately
guarded or controlled.

f) Threaded mounting of accessories must

match the grinder spindle thread. For
accessories mounted by flanges, the
arbour hole of the accessory must fit the
locating diameter of the flange.

that do not match the mounting hardware of the
power tool will run out of balance, vibrate excessively
and may cause loss of control.

g) Do not use a damaged accessory. Before

each use inspect the accessory such as
abrasive wheels for chips and cracks,
backing pad for cracks, tear or excess
wear. If power tool or accessory is
dropped, inspect for damage or install an
undamaged accessory. After inspecting
and installing an accessory, position
yourself and bystanders away from the
plane of the rotating accessory and run the
power tool at maximum no-load speed for
one minute.

break apart during this test time.

h) Wear personal protective equipment.

Depending on application, use face
shield, safety goggles or safety glasses.
As appropriate, wear dust mask, hearing
protectors, gloves and workshop apron
capable of stopping small abrasive or
workpiece fragments. The eye protection
must be capable of stopping flying debris
generated by various operations .

mask or respirator must be capable of filtrating
particles generated by your operation. Prolonged
exposure to high intensity noise may cause hearing
loss.

i) Keep bystanders a safe distance away

from work area. Anyone entering the
work area must wear personal protective
equipment.

accessory may fly away and cause injury beyond
immediate area of operation.

j) Hold the power tool by insulated gripping

surfaces only, when performing an
operation where the cutting tool may
contact hidden wiring.

will also make exposed metal parts of the power tool
“live” and could give the operator an electric shock.

k) Never lay the power tool down until the

accessory has come to a complete stop.

The spinning accessory may grab the surface and pull
the power tool out of your control.

l) Do not run the power tool while carrying it

at your side.

accessory could snag your clothing, pulling the
accessory into your body.

m) Regularly clean the power tool’s air vents.

The motor’s fan will draw the dust inside the housing
and excessive accumulation of powdered metal may
cause electrical hazards.

n) Do not operate the power tool near

flammable materials.

materials.

o) Do not use accessories that require liquid

Damaged accessories will normally

Fragments of workpiece or of a broken

Contact with a “live” wire

Accidental contact with the spinning

Sparks could ignite these

Accessories

The dust

7

Lithium-Ion cordless
angle grinder

WX800 WX800.9

coolants.

result in electrocution or shock.

p) Your hand must hold on the handle when you are

working. Always use the auxiliary handles supplied
with the tool. Loss of control can cause personal injury.

FURTHER SAFETY INSTRUCTIONS FOR ALL
OPERATIONS
Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or
snagged rotating wheel, backing pad, brush or
any other accessory. Pinching or snagging causes
rapid stalling of the rotating accessory which in turn
causes the uncontrolled power tool to be forced in
the direction opposite of the accessory’s rotation at
the point of the binding.
For example, if an abrasive wheel is snagged or
pinched by the workpiece, the edge of the wheel
that is entering into the pinch point can dig into the
surface of the material causing the wheel to climb
out or kick out. The wheel may either jump toward
or away from the operator, depending on direction
of the wheel’s movement at the point of pinching.
Abrasive wheels may also break under these
conditions.
Kickback is the result of power tool misuse and/or
incorrect operating procedures or conditions and can
be avoided by taking proper precautions as given
below.

a) Maintain a firm grip on the power tool and

position your body and arm to allow you to

8

resist kickback forces. Always use auxiliary
handle, if provided, for maximum control
over kickback or torque reaction during
start-up. The operator can control torque

reactions or kickback forces, if proper precautions
are taken.

b) Never place your hand near the rotating

accessory. Accessory may kickback over your

hand.

c) Do not position your body in the area

where power tool will move if kickback
occurs. Kickback will propel the tool in direction

opposite to the wheel’s movement at the point of
snagging.

d) Use special care when working corners,

sharp edges etc. Avoid bouncing and
snagging the accessory. Corners, sharp edges

or bouncing have a tendency to snag the rotating
accessory and cause loss of control or kickback.

e) Do not attach a saw chain woodcarving

blade or toothed saw blade. Such blades

create frequent kickback and loss of control.

ADDITIONAL SAFETY INSTRUCTIONS FOR
GRINDING AND CUTTING-OFF OPERATIONS
Safety Warnings Specific for Grinding and
Abrasive Cutting-Off Operations:
a) Use only wheel types that are

recommended for your power tool and the
specific guard designed for the selected
wheel.

designed cannot be adequately guarded and are
unsafe.

Using water or other liquid coolants may

Wheels for which the power tool was not

b) The grinding surface of centre depressed

wheels must be mounted below the plane
of the guard lip.

that projects through the plane of the guard lip cannot
be adequately protected.

c) The guard must be securely attached

to the power tool and positioned for
maximum safety, so the least amount of
wheel is exposed towards the operator.

The guard helps to protect the operator from broken
wheel fragments, accidental contact with wheel and
sparks that could ignite clothing.

d) Wheels must be used only for

recommended applications. For example:
do not grind with the side of cut-off wheel.

Abrasive cut-off wheels are intended for peripheral
grinding, side forces applied to these wheels may
cause them to shatter.

e) Always use undamaged wheel flanges

that are of correct size and shape for your
selected wheel.

wheel thus reducing the possibility of wheel breakage.
Flanges for cut-off wheels may be different from
grinding wheel flanges.

f) Do not use worn down wheels from larger

power tools.

is not suitable for the higher speed of a smaller tool
and may burst.

ADDITIONAL SAFETY WARNINGS SPECIFIC
FOR ABRASIVE CUTTING-OFF OPERATIONS:
a) Do not “jam” the cut-off wheel or apply

excessive pressure. Do not attempt
to make an excessive depth of cut.

Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the
cut and the possibility of kickback or wheel breakage.

b) Do not position your body in line with and

behind the rotating wheel.

at the point of operation, is moving away from your
body, the possible kickback may propel the spinning
wheel and the power tool directly at you.

c) When wheel is binding or when

interrupting a cut for any reason, switch
off the power tool and hold the power tool
motionless until the wheel comes to a
complete stop. Never attempt to remove
the cut-off wheel from the cut while the
wheel is in motion otherwise kickback
may occur.

eliminate the cause of wheel binding.

d) Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed
and carefully re-enter the cut.

bind, walk up or kickback if the power tool is restarted
in the workpiece.

e) Support panels or any oversized workpiece

to minimize the risk of wheel pinching and
kickback. Large workpieces tend to sag
under their own weight.

placed under the workpiece near the line of cut and
near the edge of the workpiece on both sides of the
wheel.

f)

Use extra caution when making a “pocket

An improperly mounted wheel

Proper wheel flanges support the

Wheel intended for larger power tool

When the wheel,

Investigate and take corrective action to

The wheel may

Supports must be

Lithium-Ion cordless
angle grinder

WX800 WX800.9

cut” into existing walls or other blind areas.

The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.

SAFETY WARNINGS FOR BATTERY PACK
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.

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) Seek medical advice immediately if a cell or

battery pack has been swallowed.
g) Keep battery pack clean and dry.
h) Wipe the battery pack terminals with a

clean dry cloth if they become dirty.
i) Battery pack needs to be charged before

use. Always refer to this instruction and

use the correct charging procedure.
j) Do not maintain battery pack on charge

when not in use.
k) After extended periods of storage, it may

be necessary to charge and discharge

the battery pack several times to obtain

maximum performance.
l) Battery pack gives its best performance

when it is operated at normal room

temperature (20°C ± 5°C).
m) When disposing of battery packs, keep

battery packs of different electrochemical

systems separate from each other.
n) Recharge only with the charger specified

by WORX. Do not use any charger other

than that specifically provided for use with

the equipment. A charger that is suitable for

one type of battery pack may create a risk of fire

when used with another battery pack.

o) Do not use any battery pack which is not

designed for use with the equipment.
p) Keep battery pack out of the reach of

children.
q) Retain the original product literature for

future reference.
r) Remove the battery from the equipment

when not in use.
s) Dispose of properly.

SYMBOLS

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

Warning

Wear ear protection

Wear eye protection

Wear dust mask

Wear protective gloves.

Do not expose to rain or water

Do not burn

Make sure the battery is removed prior
to changing accessories

Li-I on

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

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

9

Lithium-Ion cordless
angle grinder

WX800 WX800.9

xINR18/65-y: Cylindrical lithium
Ion battery cells with max diameter
of 18mm and max height of 65mm;
“x” represents a number cells serial
connected, blank if 1; “-y” represents a
number of cells paralleled connected,
blank if 1.

OPERATING INSTRUCTIONS

NOTE: Before using the tool, read the
instruction book carefully.

INTENDED USE:

The machine is intended for cutting, roughing and
brushing metal and stone materials without using
water. For cutting metal, a special protection guard
for cutting (accessory) must be used.

ASSEMBLY AND OPERATION

Action Figure

BEFORE OPERATION

Removing the battery pack See Fig. A1

Charging the battery pack See Fig. A2

10

Installing the battery pack

WARNING: When

replacing the battery
pack, do not insert the
battery until the Grinding/
Cutting Disc comes to a
complete stop!

ASSEMBLY

Assembling Auxiliary Handle See Fig. B

Assembling Grinding/Cutting
Disc

See Fig. A3

See Fig. C1,
C2, C3

Adjusting Wheel Guard

NOTE: Before any work on
the machine itself, remove
the battery pack. For work
with grinding or cutting
discs, the protection guard
must be mounted. Use the
correct type of disc for your
application. If the power
tool is intended to perform
cutting off operations, a
guard specific for this op­eration must be fitted.

The coded projection on the
wheel guard ensures that only a
guard that fits the machine type
can be mounted.
Open the clamping lever (13).
Place the wheel guard with
coded projection into the coded
groove on the spindle of the
machine head and rotate to
the required position (working
position).
To fasten the wheel guard, close
the clamping lever (13).

The closed side of the
wheel guard must always
point to the operator.

OPERATION

Using On/Off Switch See Fig. E

Hand Grip Areas See Fig. F

Rough Grinding

WARNING! Never use a
cutting disc for

roughing.

Cutting See Fig. G

See Fig. D

WORKING HINTS FOR YOUR
ANGLE GRINDER

1. Always start at no load to achieve maximum
speed then start working.

2. Do not force the disc to work faster, reducing the
Disc’s moving speed means longer working time.

3. Always work with a 15-30 angle between disc and
workpiece. Larger angles will cut ridges into the
workpiece and affect the surface finish. Move the
angle grinder across and back and forth over the
workpiece.

4. When using a cutting disc never change the
cutting angle otherwise you will stall the disc
and angle grinder motor or break the disc. When
cutting, only cut in the opposite direction to the
disc rotation. If you cut in the same direction as
the disc rotation the disc may push itself out of
the cut slot.

Lithium-Ion cordless
angle grinder

WX800 WX800.9

5. When cutting very hard material best results can
be achieved with a diamond disc.

6. When using a diamond disc it will become very
hot. If this happens you will see a full ring of
sparks around the rotating disc. Stop cutting and
allow to cool at no load speed for 2-3 minutes.

7. Always ensure the workpiece is firmly held or
clamped to prevent movement.

MAINTENANCE

Remove the battery 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.

DECLARATION OF
CONFORMITY

We,
Positec Power Tools (Europe)Ltd, PO Box 6242,
Newbury, RG14 9LT, UK

Declare that the product,
Description WORX Angle Grinder
Type WX800 WX800.9 (800-819

-designation of machinery, representative
of Angle Grinder)

Function Peripheral and lateral grinding

Complies with the following Directives,

2006/42/EC
2011/65/EU
2014/30/EU

TROUBLESHOOTING

Although your new angle grinder is really
very simple to operate, if you do experience
problems, please check the following:

1. If your grinder wheel wobbles or vibrates,
check that outer flange is tight; check that
the wheel is correctly located on the flange
plate.

2. If there is any evidence that the wheel
is damaged do not use as the damaged
wheel may disintegrate, remove it and
replace with a new wheel. Dispose of old
wheels sensibly.

3. If working on aluminum or a similar soft
alloy, the wheel will soon become clogged
and will not grind effectively.

ENVIRONMENTAL
PROTECTION

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.

Standards conform to:

EN 55014-1
EN 55014-2
EN 60745-1
EN 60745-2-3

The person authorized to compile the
technical file,

Name Russell Nicholson
Address Positec Power Tools (Europe)
Ltd, PO Box 6242, Newbury, RG14 9LT,
UK

Suzhou 2016/07/18
Allen Ding
Deputy Chief Engineer,Testing & Certification

11

Lithium-Ion cordless
angle grinder

WX800 WX800.9

LITHIUM ION BATTERY

Handle With Care. Do Not Load or

Transport Package If Damaged.

A Fire Hazard Could Exist.

For more information, call: [phone]

www.worx.com

Copyright © 2016, Posite c. All Ri ghts Re served.
AR01234 301