KRESS KUH10.9 Installation manual

Lithium-Ion Brushless Angle Grinder
KUH10 KUH10.2 KUH10.9
SAFETY AND OPERATING MANUAL

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Lithium-Ion Brushless Angle Grinder
KUH10 KUH10.2 KUH10.9
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 (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 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

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Lithium-Ion Brushless Angle Grinder
KUH10 KUH10.2 KUH10.9
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) 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.
e) Do not use a battery pack or tool that is
damaged or modified. Damaged or modified
batteries may exhibit unpredictable behaviour
resulting in fire, explosion or risk of injury.
f) Do not expose a battery pack or tool to fire
or excessive temperature. Exposure to fire or
temperature above 130 °C may cause explosion.
g) Follow all charging instructions and
do not charge the battery pack or tool
outside the temperature range specified
in the instructions. Charging improperly or
at temperatures outside the specified range may
damage the battery and increase the risk of fire.
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.
b) Never service damaged battery packs.
Service of battery packs should only be performed
by the manufacturer or authorized service
providers.
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. Operations
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. Just because the
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. Accessories running
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. 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. Accessories 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, wire brush for loose or cracked
wires. 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.
Damaged accessories will normally break apart
during this test time.
h) Wear personal protective equipment.
Depending on application, use face

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Lithium-Ion Brushless Angle Grinder
KUH10 KUH10.2 KUH10.9
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 . The dust 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.
Fragments of workpiece or of a broken 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. Contact with a “live”
wire 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. Accidental contact with the spinning
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. Sparks could ignite these
materials.
o) Do not use accessories that require liquid
coolants. Using water or other liquid coolants may
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 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 OPERATIONS
Safety Warnings Specific for Grinding
Operations:
a) Use only wheel types that are
recommended for your power tool and the
specific guard designed for the selected
wheel. Wheels for which the power tool was not
designed cannot be adequately guarded and are
unsafe
b) The grinding surface of centre depressed
wheels must be mounted below the plane
of the guard lip. An improperly mounted wheel
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.

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Lithium-Ion Brushless Angle Grinder
KUH10 KUH10.2 KUH10.9
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. Proper wheel flanges support
the 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. Wheel intended for larger power
tool is not suitable for the higher speed of a smaller
tool and may burst.
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) 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 Kress. 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-Ion
Li-Ion
Do not dispose of batteries.
Return exhausted batteries to
your local collection or recycling
point.
Make sure the battery is removed
prior to changing accessories.
Wear protective gloves.
The box is recyclable at the
kerbside.
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

910811 12
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1
2
A2
A1
B
C2
A1
A3
E F
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DC3
C1

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15o-30o
1
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A2
A1
B
C2
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E F
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DC3
C1

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Lithium-Ion Brushless Angle Grinder
KUH10 KUH10.2 KUH10.9
COMPONENT LIST
1. AUXILIARY HANDLE
2. SPINDLE LOCK BUTTON
3. ON/OFF SWITCH
4. VARIABLE SPEED CONTROL
5. BATTERY PACK RELEASE BUTTON*
6. BATTERY PACK*
7. WHEEL GUARD FOR GRINDING
8. DISC *
9. SPANNER
10. INNER FLANGE
11. OUTER FLANGE
12. CLAMP ADJUSTMENT NUT
13. SPINDLE
14. GUARD CLAMPING LEVER
* Not all the accessories illustrated or
described are included in standard delivery.
TECHNICAL DATA
Type Designation: KUH10 KUH10.2 KUH10.9
(H10 - designation of machinery, representative
of angle grinder)
KUH10
KUH10.2 KUH10.9
Rated voltage 20V Max**
No load speed 3500/6000/8500/min
Disc size 125mm
Disc bore 22.2mm
Spindle thread M14
Machine weight 2.4kg 1.7kg
** Voltage measured without workload. Initial battery
voltage reaches maximum of 20 volts. Nominal
voltage is 18 volts.
ACCESSORIES
KUH10 KUH10.2 KUH10.9
Spanner 1 1 1
Auxiliary handle 1 1 1
SDS wheel
guard 1 1 1
Battery pack
(KAB21) 2 2 /
Charger (KAC21) 1 1 /
We recommend that you purchase your accessories
listed in the above list 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.
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
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!
See Fig. A3
ASSEMBLY
Assembling Auxiliary Handle See Fig. B
Assembling Grinding/Cutting Disc See Fig. C1,
C2, C3

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Lithium-Ion Brushless Angle Grinder
KUH10 KUH10.2 KUH10.9
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 ts the machine type can be
mounted.
Open the clamping lever. 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.
The closed side of the wheel
guard must always point to the
operator.
See Fig. D
OPERATION
Using On/Off Switch See Fig. E
Variable Speed Control See Fig. F
Hand Grip Areas See Fig. G
Rough Grinding
Warning! Never use a
cutting disc for roughing.
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 nish. 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.
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 rmly 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.
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 ange is tight; check that the wheel is correctly
located on the ange 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.
Positec Australia Pty Limited
10 Corporate Blvd Bayswater, VIC 3153, Australia

Copyright © 2022, Positec. All Rights Reserved.
AR01605102