Erbauer ERH750 User manual

MNL_ERH750_V03_BX220IM_200825
ERH750
EAN. 3663602784357
ORIGINAL INSTRUCTIONS

2
Safety instructions
Product description
Assembly
Use
Care & maintenance
Guarantee
Declaration of Conformity

3
WARNING! Please read all safety warnings carefully and be sure
that they are fully understood before handling the tool.
x1
Ø8mm Ø10mm Ø12mm

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PRODUCT DESCRIPTION
32
1
96
5
4
11a
8
7
12
11
10
A

5
B C
1
2
D
1
2
E
F

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SAFETY INSTRUCTIONS
GENERAL POWER TOOL SAFETY WARNINGS
WARNING! Read all safety warnings, instructions,
illustrations and specications provided with this
power tool. Failure to follow all instructions listed below
may result in electric shock, re 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 ammable 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. Unmodied 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.

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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 inuence 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 a 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, if detachable, picking up or carrying the tool.
Carrying power tools with your nger 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.

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f Dress properly. Do not wear loose clothing or jewellery. Keep
your hair, 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 second.
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 moving parts, breakage of
parts and any other condition that may affect the power
tools operation. If damaged, have the power tool repaired
before use. Many accidents are caused by poorly maintained
power tools.

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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.
SERVICE
a Have your power tool serviced by a qualied repair person
using only identical replacement parts. This will ensure that
the safety of the power tool is maintained.
HAMMER SAFETY WARNINGS
a. Wear ear protectors. Exposure to noise can cause hearing
loss.
b. Use auxiliary handle(s), if supplied with the tool. Loss of
control can cause personal injury.
c. Hold power tool by insulated gripping surfaces, when
performing an oper- ation 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.
d. Always wear a dust mask.
e. Persons under 16 years of age are not permitted to operate this
machine.
f. Keep the tool and accessories out of the reach of children.
g. Always check walls and ceilings to avoid hidden power cables
and pipes.

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h. After long working periods, external metal parts and
accessories could be hot.
i. Wear eye protection when operating this tool.
j. When using this product it is essential that the following rules
for use are followed:
• When drilling it is common that the core / drill bit jams in the
material being drilled. This will result in the drill trying to rotate
around the drill bit and potentially come out of your grip. This
product has a safety clutch mechanism. This safety clutch
mechanism will be activated and stop the drive to the drill bit
BUT only if you resist the initial forces caused by the jamming
by securely holding the drill with both hands.
• ALWAYS ensure that the auxiliary handle is rmly afxed and
secure.
• The auxiliary and main handle must be rmly held to resist any
movement of the product when the core drill or drill bit becomes
jammed.
• ALWAYS use this drill when standing on a rm and secure
platform or the ground. (DO NOT USE ON LADDERS OR
STEPS.)
• NEVER start the product with the core or drill jammed in
position.
• DO NOT stretch to hold the product. Do not drill above shoulder
height or below knee height, as the product cannot be securely
held.
The following information applies to professional users only but is
good practice for all users:
ADDITIONAL SAFETY WARNING FOR CONSTRUCTION DUST
The updated Control of Substances Hazardous to Health
Regulations 1st October 2012 now also targets to reduce the
risks associated with silica, wood and gypsum dusts. Construction
workers are one of the at-risk groups within this because of the

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dust that they breathe: silica dust is not just a nuisance; it is a real
risk to your lungs!
Silica is a natural mineral present in large amounts in things like
sand, sandstone and granite. It is also commonly found in many
construction materials such as concrete and mortar. The silica is
broken into very ne dust (also known as Respirable Crystalline
Silica or RCS) during many common tasks such as cutting, drilling
and grinding Breathing in very ne particles of crystalline silica
can lead to the development of: Lung cancer Silicosis Chronic
Obstructive Pulmonary Disorder Chronic obstructive pulmonary
disease (COPD) And breathing in ne particles of wood dust can
lead to the development of Asthma The risk of lung disease is
linked to people who regularly breathe construction dust over a
period of time, not on the odd occasion.
To protect the lung, the COSHH Regulations sets a limit on the
amount of these dusts that you can breathe (called a Workplace
Exposure Limit or WEL) when averaged over a normal working
day. These limits are not a large amount of dust: when compared
to a penny it is tiny – like a small pinch of salt: This limit is the legal
maximum; the most you can breathe after the right controls have
been used.
HOW TO REDUCE THE AMOUNT OF DUST?
1. Reduce the amount of cutting by using the best sizes of
building products. Use a less powerful tool e.g. a block cutter
instead of angle grinder.
2. Using a different method of work altogether – e.g. using a nail
gun to direct fasten cable trays instead of drilling holes rst.
3. Please always work with approved safety equipment, such
as those dust masks that specially designed to lter out
microscopic particles and use the dust extraction facility at all
time.
For more information please see the HSE website: http://www.hse.
gov.uk/construction or http://www.hse.gov.uk/pubns/cis69.pdf

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WARNING! Some dust particles created by power
sanding, sawing, grinding, drill and other construction
jobs contain chemicals known to cause cancer, birth
defects or other reproductive harm. Some examples of
these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks and cement and other
masonry products.
• Arsenic and chromium from chemically treated timber.
• Your risk from these exposures varies, depending
upon how often you do this type of work. To reduce
your exposure to these chemicals:
• Work in a well-ventilated area.
• Work with approved safety equipment, such as
those dust masks that are specially designed to lter
microscopic particles.
VIBRATION
The European Physical Agents (Vibration) Directive has been
brought in to help reduce hand arm vibration syndrome injuries to
power tool users. The directive requires power tool manufacturers
and suppliers to provide indicative vibration test results to enable
users to make informed decisions as to the period of time a power
tool can be used safely on a daily basis and the choice of tool.
SEE TECHNICAL SPECIFICATIONS IN THE INSTRUCTION
MANUAL FOR THE VIBRATION LEVELS OF YOUR TOOL.
The declared vibration emission value should be used as a
minimum level and should be used with the current guidance on
vibration.
Calculating the actual period of use can be difcult and the HSE
website has further information.

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The declared vibration emission been measured in accordance
with EN 60745-1& EN 60745-2-6 and may be used to compare
one tool with another tool.
The declared vibration emission value may also be used in
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.
• Use the correct accessories for the tool and ensure
they are sharp and in good condition.
• The tightness of the grip on the handles.
• The tool is being used as intended by its design and
these instructions.
WARNING! Identify safety measures to protect the
operator that are based on an estimation of exposure in
the actual conditions of use (taking account of all parts
of the operating cycle such as the times when the tool is
switched off and when it is running idle in addition to the
trigger time).
While working with this power tool, hand/arm vibrations occur.
Adopt the correct working practices in order to reduce the
exposure to vibration. This tool may cause hand-arm vibration
syndrome if its use is not adequately managed.
Helping to minimise your vibration exposure risk. ALWAYS use
sharp chisels, drills and blades.

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Maintain this tool in accordance with these instructions and keep
well lubricated (where appropriate).
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.
NOTE: The use of other tools will reduce the users’ total
working period on this tool.
HEALTH SURVEILLANCE
All employees should be part of an employer’s health surveillance
scheme to help identity any vibration related diseases at an early
stage, prevent disease progression and help employees stay in
work.
TORQUE LIMITER
There is a clutch in your rotary hammer.
The torque limiter will actuate when a certain torque level is
reached. The motor will disengage from the output shaft. When
this happens, the bit will stop turning.
As soon as the torque limiter actuates, switch off the tool
immediately and remove the drill bit from the hole completely. This
will help prevent premature wear of the tool.

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PRODUCT DESCRIPTION
1. Dust Protection Cap
2. Tool Holder Locking Sleeve
3. Depth stop
4. Forward / Reverse Rotation Control
5. Switch Lock-On Button
6. Main handle
7. On/Off Switch With Variable Speed Control
8. Speed dial
9. Function Mode Selection Switch
10. Quick clamp
11. Auxiliary Handle
11a. Hand grip
12 Dust cover
01 TECHNICAL SPECIFICATIONS
Rated voltage, frequency: 220 – 240 V~ ,50 Hz
Rated power input: 750 W
Rated no load speed n0: 0 - 1000/min
Impact rate: 0 - 5300/min
Impact energy 3.0J
Protection class: II /
Drilling capacity max:
Masonry 26mm
Steel 13mm
Wood 30mm
Weight: 3.3kg
NOISE DATA
A weighted sound pressure: LpA: 94.3dB(A)
A weighted sound power: LwA: 105.3dB(A)
Uncertainty KpA&KwA= 3.0dB(A)
The noise for the operator may exceed 80 dB(A) and ear protection measures are
necessary.

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Vibration total values (triax cover sum) determined according to EN 60745:
VIBRATION DATA
Hammer drilling into concrete ah,HD = 14.5m/s²
Chiselling ah,CHeq = 14.4m/s2
Uncertainty K =1.5m/s²
RATING LABEL EXPLANATION
ERH750 = MODEL NUMBER E = ERBAUER
RH = ROTARY HAMMER
750 = POWER (WATTS)

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ASSEMBLY
01 SYMBOLS
Read the instruction manual
Wear eye protection
Wear protective gloves.
Wear hearing protection.
Wear a dust mask.
Wear protective, slip resistant footwear. Switch the product off and
disconnect it from the power supply before assembly, cleaning,
adjustments, maintenance, storage and transportation.
Class II tool
SDS Plus Chuck
3 metre Power Cord Length
Anti-Vibration Auxiliary Handle
yyWxx Manufacturing date code: Year of manufacturing (20yy) and week
of manufacturing (Wxx)

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02 UNPACKING
Unpack all parts and lay them on a at, stable surface.
• Remove all packing materials and shipping devices, ifapplicable.
• Make sure the delivery contents are complete and free of any damage. If you nd that parts
are missing or show damage do not use the product but contact your dealer. Using an
incomplete or damaged product represents a hazard to people and property.
• Ensure that you have all the accessories and tools needed for assembly and operation. This
also includes suitable personal protective equipment
WARNING! The product and the packaging are not children’s toys!
Children must not play with plastic bags, sheets and small parts! There is a
danger of choking and suffocation!
03 ASSEMBLING THE MACHINE
INSERTING AND REMOVING DRILL BIT IN SDS (A)
Take care that the dust protection cap (1) is not damaged when changing tools.
INSERTING
Clean and lightly oil the bit before inserting.
Pull back the bit holder locking sleeve (2) and insert the dust-free bit into the bit holder
with a twisting motion until it latches.
Release the lock sleeve. Check the locking by pulling on the bit.
NOTE: This tool is only to be used with SDS PLUS drill bits unless an
additional keyed chuck adaptor (not supplied) is used.
WARNING! Your new Rotary Hammer 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.
REMOVING
Retract back the bit holder locking sleeve (2) and pull out the bit.

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AUXILIARY HANDLE (B)
Slide the handle onto the hammer and rotate to the desired working position. To clamp
the auxiliary handle, rotate the handle clockwise. To loosen the auxiliary handle, rotate
the handle anti-clockwise.
WARNING! Always use the auxiliary handle.
DEPTH STOP (C)
• Depress the quick clamp (10) then insert the depth stop (3) through the hole. Make sure the
rippled part is on the bottom side.
• Align the tip of the depth stop (3) with the drill tip. Now pull the depth stop (3) back by the
required drilling depth.
• Release the quick clamp (10) to lock the depth stop (3) in position.
CONNECTION TO POWER SUPPLY
• Make sure the on/off switch (7) is in its off position.
• Connect the plug to a suitable socket.
WARNING! Check the voltage! The voltage must comply with the
information on the rating label!
• Your product is now ready to be used.

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USE
01 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! Always switch the product off and disconnect it from power
supply before making any adjustments!
02 OPERATION
ON/OFF SWITCH WITH VARIABLE SPEED CONTROL
Depress to start and release to stop your tool. This tool has a variable speed switch
(7) that delivers higher speeds with increased trigger pressure - speed is controlled by
varying the pressure applied to the switch.
SWITCH LOCK-ON BUTTON (D)
Depress the on/off switch (7) then the lock on button (5); Release the on/off switch rst
and the lock-on button second. Your switch is now locked on for continuous use. To
switch off your tool just depress and release the on/off switch.
SPEED DIAL (E)
Limit the maximum speed using the speed dial (8). The variable speed device enables
you to select the best speed for a particular application
• Turn the speed dial (8) in plus direction “+” to increase the maximum speed.
• Turn the speed dial (8) in minus direction “-” to decrease the maximum speed.
FORWARD AND REVERSE ROTATION CONTROL (F)
With the drill pointing away from you, push the forward/reverse rotation control (4) to
the left for forward rotation. Push the forward/reverse rotation control (4) to the right for
reverse rotation
WARNING! Never change the direction of rotation while the tool is
rotating, wait until it has stopped.