Makita GD0801C User manual

1
ENGLISH (Original instructions)
INSTRUCTION MANUAL
DOUBLE INSULATION
IMPORTANT: Read Before Using.
Die Grinder
GD0801C
GD0811C
015003

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ENGLISH (Original instructions)
SPECIFICATIONS
Model GD0801C GD0811C
Collet size Max. 8 mm Max. 8 mm
Max. wheel diameter 25 mm 50 mm
Max. wheel point diameter Max. mandrel (shank) length 46 mm 46 mm
Rated speed (n) / No load speed (n0) 29,000 min-1 7,000 min-1
Overall length 390 mm 390 mm
Net weight 2.0 kg 2.0 kg
Safety class /II
• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003
END202-8
Symbols
The following show the symbols used for the equipment.
Be sure that you understand their meaning before use.
󻜎Read instruction manual.
󻜎DOUBLE INSULATION
󻜎Wear safety glasses.
󻜎Only for EU countries
Do not dispose of electric equipment
together with household waste
material!
In observance of the European
Directive, on Waste Electric and
Electronic Equipment and its
implementation in accordance with
national law, electric equipment that
have reached the end of their life must
be collected separately and returned to
an environmentally compatible
recycling facility.
ENE050-1
Intended use
The tool is intended for grinding ferrous materials or
deburring castings.
ENF002-2
Power supply
The tool should be connected only to a power supply of
the same voltage as indicated on the nameplate, and
can only be operated on single-phase AC supply. They
are double-insulated and can, therefore, also be used
from sockets without earth wire.
ENG905-1
Noise
The typical A-weighted noise level determined
according to EN60745:
Model GD0801C
Sound pressure level (LpA) : 80 dB (A)
Sound power level (LWA) : 91 dB (A)
Uncertainty (K) : 3 dB (A)
Model GD0811C
Sound pressure level (LpA) : 78 dB (A)
Uncertainty (K) : 3 dB (A)
The noise level under working may exceed 80 dB (A).
Wear ear protection
ENG900-1
Vibration
The vibration total value (tri-axial vector sum)
determined according to EN60745:
Model GD0801C
Work mode : surface grinding
Vibration emission (ah) : 3.5 m/s2
Uncertainty (K) : 1.5 m/s2
Model GD0811C
Work mode : surface grinding
Vibration emission (ah) : 2.5 m/s2or less
Uncertainty (K) : 1.5 m/s2
ENG901-1
• The declared vibration emission value has been
measured in accordance with the standard test method
and may be used for comparing one tool with another.
• The declared vibration emission value may also be
used in a preliminary assessment of exposure.
WARNING:
• The vibration emission during actual use of the power
tool can differ from the declared emission value
depending on the ways in which the tool is used.

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• Be sure to 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).
ENH101-18
For European countries only
EC Declaration of Conformity
Makita declares that the following Machine(s):
Designation of Machine:
Die Grinder
Model No./ Type: GD0801C,GD0811C
Conforms to the following European Directives:
2006/42/EC
They are manufactured in accordance with the following
standard or standardized documents:
EN60745
The technical file in accordance with 2006/42/EC is
available from:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
14.2.2014
000331
Yasushi Fukaya
Director
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
GEA005-3
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.
Work area safety
1. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
2. 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.
3. Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
Electrical safety
4. 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.
5. 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.
6. Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
7. 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.
8. 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.
9. 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.
10. Use of power supply via a RCD with a rated
residual current of 30 mA or less is always
recommended.
Personal safety
11. 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.
12. 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.
13. 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.
14. 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.

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15. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
16. 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.
17. 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.
Power tool use and care
18. 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.
19. 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.
20. 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.
21. 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.
22. 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.
23. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
24. 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.
Service
25. 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.
26. Follow instruction for lubricating and
changing accessories.
27. Keep handles dry, clean and free from oil and
grease.
GEB034-9
DIE GRINDER SAFETY
WARNINGS
Safety Warnings Common for Grinding Operation:
1.
This power tool is intended to function as a grinder.
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.
2. Operations such as sanding, wire brushing,
polishing or cutting-off 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.
3. 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.
4. 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.
5. 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 controlled.
6. The arbour size of accessories must properly
fit the collet of the power tool. 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.
7. Mandrel mounted accessories must be fully
inserted into the collet or chuck. If the mandrel
is insufficiently held and/or the overhang of the
wheel is too long, the mounted accessory may
become loose and be ejected at high velocity
8. Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks. 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.

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9.
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 . 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.
10. 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.
11. Hold power tool by insulated gripping
surfaces only, when performing an operation
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.
12. Always hold the tool firmly in your hand(s)
during the start-up. The reaction torque of the
motor, as it accelerates to full speed, can cause
the tool to twist.
13. Use clamps to support workpiece whenever
practical. Never hold a small workpiece in one
hand and the tool in the other hand while in
use. Clamping a small workpiece allows you to
use your hand(s) to control the tool. Round
material such as dowel rods, pipes or tubing have
a tendency to roll while being cut, and may cause
the bit to bind or jump toward you.
14. Position the cord clear of the spinning
accessory. If you lose control, the cord may be
cut or snagged and your hand or arm may be
pulled into the spinning accessory.
15. 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.
16. After changing the bits or making any
adjustments, make sure the collet nut, chuck
or any other adjustment devices are securely
tightened. Loose adjustment devices can
unexpectedly shift, causing loss of control, loose
rotating components will be violently thrown.
17. 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.
18. 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.
19. Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
20. Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged
rotating 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.
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. The operator can control
kickback forces, if proper precautions are
taken.
b) 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.
c) Do not attach a toothed saw blade. Such
blades create frequent kickback and loss of control
d) Always feed the bit into the material in the
same direction as the cutting edge is exiting
from the material (which is the same direction
as the chips are thrown). Feeding the tool in the
wrong direction causes the cutting edge of the bit
to climb out of the work and pull the tool in the
direction of this feed.
Safety Warnings Specific for Grinding:
a) Use only wheel types that are recommended
for your power tool and only for recommended
applications.
b) Do not position your hand in line with and
behind the rotating wheel.When the wheel, at
the point of operation, is moving away from your
hand, the possible kickback may propel the
spinning wheel and the power tool directly at you.

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Additional Safety Warnings:
21. The tool is intended for use with bonded
abrasive wheel points (grinding stones)
permanently mounted on plain, unthreaded
mandrel (shanks).
22. Make sure the wheel is not contacting the
workpiece before the switch is turned on.
23. Before using the tool on an actual workpiece,
let it run for a while. Watch for vibration or
wobbling that could indicate poor installation
or a poorly balanced wheel.
24. Use the specified surface of the wheel to
perform the grinding.
25. Watch out for flying sparks. Hold the tool so
that sparks fly away from you and other
persons or flammable materials.
26. Do not leave the tool running. Operate the tool
only when hand-held.
27. Do not touch the workpiece immediately after
operation; it may be extremely hot and could
burn your skin.
28. Observe the instructions of the manufacturer
for correct mounting and use of wheels.
Handle and store wheels with care.
29. Check that the workpiece is properly
supported.
30. If working place is extremely hot and humid,
or badly polluted by conductive dust, use a
short-circuit breaker (30 mA) to assure
operator safety.
31. Do not use the tool on any materials
containing asbestos.
32. Always be sure you have a firm footing. Be
sure no one is below when using the tool in
high locations.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to safety rules for the subject product. MISUSE or
failure to follow the safety rules stated in this
instruction manual may cause serious personal
injury.
FUNCTIONAL DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function
on the tool.
Switch action
CAUTION:
• Before plugging in the tool, always check to see
that the switch lever actuates properly and returns
to the "OFF" position when released.
• Do not pull the switch lever forcibly without pulling
in the lock-off lever. This may cause switch
breakage.
1
015004
To prevent the switch lever from accidentally pulled, a
lock-off lever is provided.
12
015009
To start the tool, pull the lock-off lever toward the
operator and then pull the switch lever. Release the
switch lever to stop.
Speed adjusting dial
1
015005
The tool speed can be changed by turning the speed
adjusting dial to a given number setting from 1 to 5.
1. Speed adjusting
dial
1. Lock-off lever
2. Switch lever
1. Lock-off lever

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Higher speed is obtained when the dial is turned in the
direction of number 5. And lower speed is obtained
when it is turned in the direction of number 1.
Refer to the table for the relationship between the
number settings on the dial and the approximate tool
speed.
GD0801C GD0811C
Number min-1 (RPM)
1-2 7,000 - 10,000 1,800 - 2,400
2-3 10,000 - 17,000 2,400 - 4,100
3-4 17,000 - 24,000 4,100 - 5,800
4-5 24,000 - 29,000 5,800 - 7,000
min-1 (RPM)
014992
CAUTION:
• If the tool is operated continuously at low speeds
for a long time, the motor will get overloaded,
resulting in tool malfunction.
• The speed adjusting dial can be turned only as far
as 5 and back to 1. Do not force it past 5 or 1, or
the speed adjusting function may no longer work.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing the side handle
Always use the side handle to ensure operating safety.
1
015006
Install the side handle on the tool barrel, then tighten the
handle by turning clockwise at the desired position.
Installing or removing wheel point
1
2
4
5
3
015007
Loosen the collet nut and insert the wheel point into the
collet nut. Use the smaller wrench to hold the spindle
and the larger one to tighten the collet nut securely.
The wheel point should not be mounted more than 10
mm from the collet nut. Exceeding this distance could
cause vibration or a broken shaft.
10 mm (3/8") MAX.
015678
To remove the wheel point, follow the installation
procedure in reverse.
CAUTION:
• Use the correct size collet cone for the wheel point
which you intend to use.
OPERATION
CAUTION:
• ALWAYS hold the tool firmly with one hand on
housing and the other on the side handle.
• Apply light pressure on the tool. Excessive
pressure on the tool will only cause a poor finish
and overloading of the motor.
015008
Turn the tool on without the wheel point making any
contact with the workpiece and wait until the wheel point
attains full speed. Then apply the wheel point to the
workpiece gently. To obtain a good finish, move the tool
in the leftward direction slowly.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
• Never use gasoline, benzine, thinner, alcohol or
the like. Discoloration, deformation or cracks may
result.
1. Wrench 19
2. Wrench 13
3. Collet nut
4. Tighten
5. Loosen
1. Side handle

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To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by
Makita Authorized Service Centers, always using Makita
replacement parts.
OPTIONAL ACCESSORIES
CAUTION:
• These accessories or attachments are
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• Wheel points
• Collet cone set (3 mm, 6 mm, 8mm, 1/4", 1/8")
• Vise holder
• Wrench 13
• Wrench 19
• Side handle set
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ
from country to country.

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www.makita.com
Makita Jan-Baptist Vinkstraat 2, 3070, Belgium
Makita CorporationAnjo,Aichi,Japan
885367A221