ROTARY HAMMER
OWNER'S MANUAL
WARNING:
Read carefully and understand all INSTRUCTIONS before
operating. Failure to follow the safety rules and other basic
safety precautions may result in serious personal injury.
Item # 143384
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Do not use your tool where there is a risk of causing a fire or an explosion; e.g., in
the presence of flammable liquids, gasses, or dust. Power tools create sparks, which
may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can
cause you to lose control, so visitors should remain at a safe distance from the work area.
ELECTRICAL SAFETY
WARNING! Always check to ensure the power supply corresponds to the voltage on the
rating plate.
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Do not abuse the cord. Never use the cord to carry the tool. Keep cord away from
heat, oil, sharp edges or moving parts. Replace damaged cords immediately.
Damaged cords may cause a fire and increase the risk of electric shock.
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Grounded tools must be plugged into an outlet properly installed and grounded in
accordance with all codes and ordinances. Never remove the grounding prong or modi-
fy the plug in any way. Do not use any adapter plugs. Check with a qualified electrician if
you are in doubt as to whether the outlet is properly grounded.
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Avoid body contact with grounded surfaces such as pipes, radiators, ranges, and
refrigerators. There is an increase risk of electric shock if you body is grounded.
When operating a power tool outside, use an outdoor extension cord marked “W-A”
or “W”. These cords are rated for outdoor use and reduce the risk of electric shock.
Do not expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
Do not let your fingers touch the terminals of plug when installing or removing the
plug to or from the outlet.
PERSONAL SAFETY
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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.
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Dress properly. Do not wear loose clothing of jewelry. Keep your hair, clothing and
gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in
moving parts. Air vents often cover moving parts and should be avoided.
Always use the appropriate ANSI Z87.1-rated eye protection and other safety equipment.
Safety equipment such as dust mask, non-skid safety shoes, hardhat, or hearing protection
used for appropriate conditions will reduce personal injuries.
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Avoid accidental starting. Ensure the switch is in the off position before plugging
tool into power outlet. Do not carry the power tool with your finger on the switch.
Do not overreach. Keep proper footing and balance at all times. This enables better
control of the power tool in unexpected situations.
Remove adjusting keys or wrenches before turning the tool on. A wrench or key that
is left attached to a rotating part of the tool may result in personal injury.
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TOOL USE AND CARE
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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.
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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 by an
authorized service representative.
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Disconnect the power from tool and place the switch in the locked or off position
before making any adjustments, changing accessories, or storing power tools. Make
sure blade has stopped. Such preventive safety measures reduce the risk of starting the
power tool accidentally.
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Secure work with clamps or a vise instead of your hand to hold work when practical.
This safety precaution allows for proper tool operation using both hands.
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.
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Maintain power tools. 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.
Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one tool may create a risk of injury when used on
another tool.
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Keep guards in place and in working order.
Never leave tool running unattended.
Before drilling into walls, ceilings etc, ensure there are no concealed power cables or
pipes in the cavity.
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Always use the side handle; this gives you greater control if the accessory should
become jammed.
Keep the cord clear of the accessory being used. Do not wrap the cord around your
arm or wrist.
Get a good grip. Hold the tool by the insulated gripping surfaces when performing an
operation where the accessory may contact hidden wiring or its own cord.
Use thick cushioned gloves and limit the exposure time by taking frequent breaks.
Vibration caused by the hammer action may be harmful to your hands and arms.
When removing an accessory from the tool, avoid contact with skin and use proper
protective gloves when grasping the bit or accessory. Accessories may be hot after
prolonged use.
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Always wear eye protection and a dust mask, especially for dusty applications and
when drilling / chiseling overhead. Sanding particles can be absorbed by your eyes and
inhaled easily and may cause health complications.
WARNING! The use of any accessory or attachment, or performance of any operation
with this tool other than those recommended in this instruction manual may present a risk of
personal injury.
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OPERATION
BEFORE ATTACHING OR REMOVING ANY ACCESSORIES BE SURE TO DISCONNECT
THE HAMMER DRILL FROM THE POWER SUPPLY.
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Fitting and changing tools (Fig.2)
The device is equipped with a SDS-plus attachment system.
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clean tools and grease with a thin layer of machine grease before fitting.
Pull back fastening sleeve (A, Fig.2) and hold.
Push and rotate the dust-free tool into the tool holder as far as it will go. The tool will
lock automatically.
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Check that it has locked by pulling the tool.
Removing SDS-plus tool (Fig.3)
Pull back fastening sleeve (A), hold and remove the tool.
Starting work (Fig.1)
Switching ON/OFF
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switching on: Press the operating switch (3).
switching off: Press the operating switch (3) briefly and let go.
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Handle attachment (Fig.4)
For safety reasons, only use the hammer drill with handle attachment.
You will be able to achieve a safe body position during operation by rotating the handle
attachment.
Loosen and turn the handle attachment in an counterclockwise direction. Then tighten the
handle attachment.
Depth stop (Fig.5)
Loosen the handle attachment and place the straight part of the depth stop into the hole.
Adjust the depth stop and re-tighten the handle attachment.
Dust collection device (Fig. 6)
Before doing any overhead hammer-drilling work, attach the dust-collecting cup over the drill bit.
Drill Stop (Fig.8)
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You can deactivate the drilling action of the hammer drill when using it for chiseling work.
Turn the lever selector (7) so that the mark “T” coincides with the arrow (a) on the
machine case.
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To reactivate the drilling action, the lever selector (8) has to be reset so that the mark (b)
“I T” coincides with the arrow (a).
Important! Too much pressure will place unnecessary load on the motor. Check the drill bits
regularly. Re-sharpen or replace blunt drill bits.
MAINTENANCE
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The grease in the gearbox will require replenishment after approximately 50 hours
accumulative use. After this time add approximately 50 grams of the grease (supplied),
into the gearbox. First remove the cap from the tool by using the pin spanner (supplied).
Once removed add the grease through this hole. Ensure the cap is secured back into
position prior to operation.
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After each use, blow air through the tool housing to ensure it is free from all dust particles
that may build up. Build up of dust particles may cause the tool to overheat and fail.
If the housing of the tool requires cleaning do not use solvents but a moist soft cloth only.
Never let any liquid get inside the tool; never immerse any part of the tool into a liquid.
When the carbon brushes wear out the tool will spark and/or stop. The brushes are a
wearing component of the tool and should be replaced prior to the carbon wearing out fully.
Brushes will wear out after many uses. Always replace both brushes at the same time.
Note: Northern Industries will not be responsible for any damage or injuries caused by the
repair of the tool by an unauthorized person or by mishandling of the tool.
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PARTS DRAWING
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PARTS LIST
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