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Operating/Safety Instructions
Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento y seguridad
1800
1801
1803EVS
1806E
Call Toll Free for
Consumer Information
& Service Locations
1-877-BOSCH99 (1-877-267-2499) www.boschtools.com
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BM 1609929J64 12-05 12/12/05 4:07 PM Page 2
General Safety Rules
WARNING
!
all of the warnings listed below refers to your mains-operated (corded) power tool or batteryoperated (cordless) power tool.
Read all instructions. Failure to follow all instructions listed below may
result in electric shock, fire and/or serious injury.
The term “power tool” in
SAVE THESE INSTRUCTIONS
Work area safety
Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust.
tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while
operating a power tool.
cause you to lose control.
Distractions can
Power
Electrical safety
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.
and matching outlets will reduce risk of
electric shock.
Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators.
is an increased risk of electric shock if your
body is earthed or grounded.
Do not expose power tools to rain or wet
conditions.
increase the risk of electric shock.
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.
entangled cords increase the risk of electric
shock.
When operating a power tool outdoors,
use an extension cord suitable for
outdoor use.
outdoor use reduces the risk of electric
shock.
Do not use AC only rated tools with a DC
power supply.
work, the electrical components of the AC
rated tool are likely to fail and create a
hazard to the operator.
Water entering a power tool will
Use of a cord suitable for
While the tool may appear to
Unmodified plugs
There
Damaged or
If operating the power tool in damp
locations is unavoidable a Ground Fault
Circuit Interrupter (GFCI) must be used to
supply the power to your tool.
personal protection devices like electrician’s
rubber gloves and footwear will further
enhance your personal safety.
GFCI and
Personal safety
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.
inattention while operating power tools may
result in serious personal injury.
Use safety equipment. Always wear eye
protection.
mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate
conditions will reduce personal injuries.
Avoid accidental starting. Ensure the
switch is in the off-position before
plugging in.
finger on the switch or plugging in power
tools that have the switch on invites
accidents.
Remove any adjusting key or wrench
before turning the power tool on.
or a key left attached to a rotating part of the
power tool may result in personal injury.
Do not overreach. Keep proper footing
and balance at all times.
better control of the power tool in unexpected
situations.
Dress properly. Do not wear loose
clothing or jewelry. Keep your hair,
clothing and gloves away from moving
parts.
be caught in moving parts.
If devices are provided for the connection
of dust extraction and collection facilities,
ensure these are connected and properly
used.
related hazards.
Safety equipment such as dust
Carrying power tools with your
Loose clothes, jewelry or long hair can
Use of these devices can reduce dust-
-2-
A moment of
A wrench
This enables
BM 1609929J64 12-05 12/12/05 4:07 PM Page 3
Keep handles dry, clean and free from oil
and grease.
control the power tool.
Slippery hands cannot safely
Power tool use and care
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.
Do not use the power tool if the switch
does not turn it on and off.
that cannot be controlled with the switch is
dangerous and must be repaired.
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.
measures reduce the risk of starting the
power tool accidentally.
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.
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.
poorly maintained power tools.
Many accidents are caused by
Any power tool
Such preventive safety
SAVE THESE INSTRUCTIONS
Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control.
Use the power tool, accessories and tool
bits etc., in accordance with these
i
nstructions and in the manner intended
for the particular type of power tool,
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.
Use clamps or other practical way to
secure and support the workpiece to a
stable platform.
or against your body is unstable and may
lead to loss of control.
Holding the work by hand
Service
Have your power tool serviced by a
qualified repair person using only identical
replacement parts.
safety of the power tool is maintained.
Develop a periodic maintenance schedule
for your tool. When cleaning a tool be
careful not to disassemble any portion of
the tool since internal wires may be
misplaced or pinched or safety guard
return springs may be improperly
mounted.
gasoline, carbon tetrachloride, ammonia, etc.
may damage plastic parts.
Certain cleaning agents such as
This will ensure that the
Angle Grinder Safety Rules
Always use proper guard with grinding
wheel.
broken wheel fragments. When using
grinding wheel attachments, the guard must
always be attached to the tool and positioned
for maximum safety, so the least amount of
wheel is exposed from the side the tool is
being operated.
Use clamps or other practical way to
secure and support the workpiece to a
stable platform.
or against your body is unstable and may
lead to loss of control.
A guard protects operator from
Holding the work by hand
Accessories must be rated for at least the
speed recommended on the tool warning
label.
Wheels and other accessories running
over rated speed can fly apart and cause
injury. Grinding wheels or any other
accessory must have a maximum safe
operating speed greater than the “no load
RPM” marked on the tool’s nameplate.
Hold tool by insulated gripping surfaces
when performing an operation where the
cutting tools may contact hidden wiring
or its own cord.
will make exposed metal parts of the tool
“live” and shock the operator.
Contact with a “live” wire
-3-
BM 1609929J64 12-05 12/12/05 4:07 PM Page 4
Always use auxiliary handle for maximum
control over torque reaction or kick-back.
O
peration of the grinder without the side
h
andle could cause loss of control of the
grinder, resulting in possible serious personal
injury.
Before using a grinder or installing a new
wheel, inspect the grinding wheel for chips
and cracks. Remove bad wheels
immediately. Run the tool at no load for
one minute, holding the tool in the
direction away from people.
flaws will normally break apart during this
time.
Carefully handle both the tool and
individual grinding wheels to avoid
chipping or cracking. Install a new wheel if
tool is dropped while grinding. Do not use
a wheel that may be damaged.
from a wheel that bursts during operation will
fly away at great velocity possibly striking you
or bystanders.
Do not use grinding wheel that is larger
than the maximum recommended size for
your tool, or worn down damaged wheels
from larger grinders.
large angle sander/grinders are not suitable
for the high speed of a small angle
sander/grinder, these wheels may easily burst
and the fragments strike you or bystanders.
Do not use depressed hub grinding wheels
for cut-off operations.
wheels or type 27 wheels are not intended for
side loading and may shatter under overload.
Do not use this tool with “Woodcarving”
Such blades create frequent kick-back
blade.
and loss of control.
Wear proper apparel while using a
sander/grinder.
goggles, dust mask, leather gloves and shop
apron capable of stopping small wheel or
workpiece fragments.
Position the cord clear of the spinning
grinding wheel or any other sanding
accessory. Do not wrap the cord around
your arm or wrist.
have the cord wrapped around your arm or
wrist it may entrap you and cause injury.
Wheels intended for
Face shield or at least safety
If you lose control and
Wheels with
Fragments
Depressed hub
Avoid bouncing and snagging the wheel,
especially when working corners, sharp
e
dges etc.
k
ick-back.
Regularily clean the tool’s air vents by
compressed air.
powdered metal inside the motor housing may
cause electrical failures.
Do not grind or sand near flammable
materials.
these materials.
This tool can be converted to a sander.
When grinding is resumed the proper
guard and wheel flanges MUST be
reinstalled before proceeding with
grinding. The guard must always be
attached to the tool and positioned for
maximum safety, so the least amount of
wheel is exposed from the side the tool is
being operated.
cannot be used for most sanding operations
or for wire brushing.
When sanding, do not use oversized
sanding disc.
beyond the sanding pad causing snagging,
tearing of the disc or kick-back. Extra paper
extending beyond the sanding pad can also
cause serious lacerations.
!
grinding, drilling, and other construction
activities contains 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, and
• Arsenic and chromium from chemicallytreated lumber.
Your risk from these exposures varies,
depending on how often you do this type of
work. To reduce your exposure to these
chemicals: work in a well ventilated area, and
work with approved safety equipment, such as
those dust masks that are specially designed
to filter out microscopic particles.
T
his can cause loss of control and
Excessive accumulation of
Sparks from the wheel could ignite
The grinding wheel guard
Larger sanding disc will extend
WARNING
Some dust created by
power sanding, sawing,
-4-
A
0
A
A
0
A
BM 1609929J64 12-05 12/12/05 4:07 PM Page 5
Symbols
IMPORTANT: Some of the following symbols may be used on your tool. Please study them
and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.
SymbolNameDesignation/Explanation
VVoltsVoltage (potential)
AAmperesCurrent
HzHertzFrequency (cycles per second)
WWattPower
kgKilogramsWeight
minMinutesTime
sSecondsTime
DiameterSize of drill bits, grinding wheels, etc.
n
.../minRevolutions or reciprocation per minute Revolutions, strokes, surface speed,
0Off positionZero speed, zero torque...
1, 2, 3, ...Selector settingsSpeed, torque or position settings.
I, II, III,Higher number means greater speed
No load speedRotational speed, at no load
0
orbits etc. per minute
Infinitely variable selector with offSpeed is increasing from 0 setting
ArrowAction in the direction of arrow
Alternating currentType or a characteristic of current
Direct currentType or a characteristic of current
Alternating or direct currentType or a characteristic of current
NOTE: For tool specifications refer to the nameplate on your tool.
-6-
BM 1609929J64 12-05 12/12/05 4:07 PM Page 7
Assembly
T
W
HEEL GUARD INSTALLATION
WARNING
!
Wheel guard must be
attached when using disc
grinding wheels. Always keep wheel guard
between you and your work while grinding.
The position of the guard can be adjusted to
accommodate the operation being performed.
To attach wheel guard DISCONNECT tool
from power source.
Position wheel guard on spindle neck so that
the arrow on guard lines up with the arrow on
the spindle neck. Rotate wheel guard
clockwise 90º until it clicks in place (Fig. 2).
TO ADJUST GUARD: depress guard release
button (Fig. 1), rotate guard to desired position,
release button and let it click in place.
O REMOVE GUARD: Depress release button,
rotate guard until arrow on guard lines up with
arrow on spindle neck, and remove guard from
spindle neck.
WHEEL
GUARD
SPINDLE
NECK
FIG. 2
LOCK NUT AND BACKING FLANGE
Your tool is equipped with a threaded spindle
for mounting accessories. Always use the
supplied lock nut (and backing flange) that
has same thread size as spindle.
Disc Grinding Wheel Assembly
(Models 1800, 1801 & 1803EVS only)
Disconnect tool from power source. Be sure
that wheel guard is in place for grinding.
Place BACKING FLANGE and GRINDING
WHEEL on the spindle. Thread on the lock
nut and tighten nut using the supplied lock
nut wrench, while holding the spindle lock in
(Fig. 3).
SPINDLE
GRINDING
WHEEL
BACKING
FLANGE
LOCK NUT
The side handle used to guide and balance the
SIDE HANDLE
tool can be threaded into the front housing on
either side of the tool, depending on personal
preference and comfort. Use the side handle
for safe control and ease of operation.
FIG. 3
SPINDLE
WHEEL
GUARD
BACKING
FLANGE
GRINDING
WHEEL
LOCK NUT
-7-
BM 1609929J64 12-05 12/12/05 4:07 PM Page 8
Disc Grinding Wheel Assembly
Disconnect tool from power source. Be sure
that wheel guard is in place for grinding.
When using spin-on grinding wheels, thread
directly onto the spindle.
When using mounting wheels, thread
BACKING FLANGE onto spindle, then place
GRINDING WHEEL on the spindle. Thread
on the lock nut and tighten nut using a lock
nut wrench provided with adapter kit, while
holding the spindle lock in (Fig. 4).
TO REMOVE: Reverse procedure.
(Model 1806 only)
Masonry Cutting Wheel Assembly
For cutting masonry materials like brick, tile,
stone, etc., it is best to use a dry diamond
cutting wheel. Use only lock nut and flange
with equal diameters. The wheel guard must
be used with a dry diamond cutting wheel.
WARNING
!
cutting.
Disconnect tool from power source. Be sure
that wheel guard is in place for grinding.
Place BACKING FLANGE and DRY
DIAMOND WHEEL on the spindle. Thread
on the lock nut and tighten nut using the
supplied lock nut wrench, while holding the
spindle lock in (Fig. 5).
Do not use water or other
cooling fluid with this tool for
FIG. 4
SPINDLE
WHEEL
GUARD
BACKING
FLANGE
GRINDING
WHEEL
LOCK NUT
TO REMOVE: Reverse procedure.
FIG. 5
SPINDLE
WHEEL
GUARD
BACKING
FLANGE
DRY
DIAMOND
WHEEL
SPINDLE
BACKING
FLANGE
LOCK NUT
DRY
DIAMOND
WHEEL
LOCK NUT
When cutting, make only small passes
through workpiece at a time. Be aware that
“Kickback” can occur at any time. Keep both
hands on tool for maximum control.
-8-
BM 1609929J64 12-05 12/12/05 4:07 PM Page 9
Sanding Accessories Assembly
BACKING PAD
WARNING
!
safe operating speed is not exceeded by the
nameplate speed of the tool.
WARNING
!
operations. Always reinstall wheel guard
when converting back to grinding operations.
TO INSTALL BACKING PAD AND
Disconnect tool from power source. Set the
tool on its top side (spindle up). Place the
rubber backing pad onto the spindle shaft.
Center the sanding disc on top of the
backing pad. Insert the lock nut through the
disc and thread onto the spindle as far as
you can with your fingers. Press in the
spindle lock, then tighten the backing pad
securely with lock nut wrench (Fig. 6).
TO REMOVE BACKING PAD AND
Disconnect tool from power source. Using
the lock nut wrench unscrew the nut from the
spindle, while holding spindle lock in.
Before assembling wire brush to this tool,
disconnect from the power source. Wire
Before attaching a backing
pad be sure its maximum
Wheel guard may not be
used for most sanding
SANDING DISC
SANDING DISC
WIRE BRUSH ASSEMBLY
brushes are equipped with their own
threaded hub, simply thread on to spindle
(
Fig. 6). Be sure to seat against shoulder
b
efore turning tool “ON”.
FIG. 6
S
PINDLE
BACKING
PAD
SANDING
DISC
LOCK NUT
WIRE
BRUSH
Operating Instructions
SLIDE ON-OFF SWITCH WITH LOCK
The tool is switched “ON” by the switch
button located at the side of the motor
housing. The switch can be locked in the
“ON” position, a convenience for long
grinding operations.
TO TURN THE TOOL “ON” without locking it,
slide the switch button forward by applying
pressure ONLY at the REAR portion of the
button. When pressure is released the switch
button will snap to “OFF” position.
TO LOCK THE SWITCH “ON”, slide the
switch button forward and press “IN” the
FRONT portion.
TO UNLOCK THE SWITCH, simply press
and release the REAR portion of the button.
Switch is spring loaded and will snap back
automatically.
WARNING
!
torque from the motor can cause the tool to twist.
Start the tool before applying to work and let
the tool come to full speed before contacting
the workpiece. Lift the tool from the work
before releasing the switch. DO NOT turn the
switch “ON” and “OFF” while the tool is
under load; this will greatly decrease the
switch life.
Hold the tool with both hands
while starting the tool, since
-9-
BM 1609929J64 12-05 12/12/05 4:07 PM Page 10
ELECTRONIC FEEDBACK CIRCUITRY (EFC)
(Models 1803EVS & 1806E only)
The internal electronic feedback system
provides a "soft start", which will reduce the
stresses that occur from a high torque start.
The system also helps to keep the no load
speed virtually constant between no-load and
l
oad conditions.
KICKBACK STOP
Your tool is equipped with a kickback stop
feature. This feature shuts of the tool
automatically if the tool stalls, or the wheel
encounters excessive force. To resume
operation, TURN ON/OFF SWITCH TO THE
OFF POSITION, THEN RESTART THE
TOOL.
RESTART PROTECTION
The restart protection feature was designed
to help prevent accidental startups after the
power has been interrupted. To resume
operation if this occurs, TURN ON/OFF
SWITCH TO THE OFF POSITION, THEN
RESTART THE TOOL.
OVERLOAD PROTECTION
(Models 1803EVS & 1806E only)
Your tool is equipped with overload
protection to protect the motor. If the tool
stops during operation TURN OFF SWITCH
IMMEDIATELY and allow the motor to cool
for about 30 seconds by running at no-load.
If the overload protection stops the tool
repeatedly, excessive force is causing the
tool to overload. Don't press so hard and let
the tool do the work.
V
ARIABLE SPEED WITH DIAL SETTING
(1803EVS ONLY)
Your tool is also equipped with a variable
speed dial. The grinder’s RPM can be preset
from zero to maximum nameplate rated RPM
by rotating the dial on the motor housing. If
tool is running at a set speed for extended
periods of time, it may be necessary to run
the tool at no- load full speed to cool the motor.
maximum safe operating speed is not
exceeded by the nameplate speed of the
grinder. Do not exceed the recommended
wheel diameter.
Grinding wheels should be carefully selected
in order to use the grinder most efficiently.
Wheels vary in type of abrasive, bond,
hardness, grit size and structure. The correct
type of wheel to use is determined by the job.
Use disc grinding wheels for fast grinding of
structural steel, heavy weld beads, steel
casting, stainless steel and other ferrous
metals.
Before using a grinding
wheel, be certain that its
DISC GRINDING WHEELS
Efficient grinding is achieved by controlling
GRINDING TIPS
the pressure and keeping the angle between
wheel and workpiece at 10° to 15°. If the
wheel is flat, the tool is difficult to control. If
the angle is too steep, the pressure is
concentrated on a small area causing
burning to the work surface.
!
WARNING
Excessive or sudden pres-
sure on the wheel will slow
grinding action and put dangerous stresses
on the wheel.
When grinding with a new wheel be certain
to grind while pulling tool backwards until
wheel becomes rounded on its edge. New
wheels have sharp corners which tend to
“bite” or cut into workpiece when pushing
forward.
-10-
BM 1609929J64 12-05 12/12/05 4:07 PM Page 11
Sanding Operations
SELECTING SANDING DISC
Sanding discs are made of extremely hard
and sharp aluminum oxide grits, phenol-resin
bonded to a sturdy fiber backing for fast
heavy-duty service and long life. The discs
vary as to size and spacing of the abrasive
grits. OPEN COAT (type H) — used for soft
materials and on paint or varnish. CLOSED
COAT (type K) —used for metal, hardwood,
stone, marble and other materials.
Sanding discs range in grit from 16 (very
coarse) to 180 (very fine). To obtain best
results, select sanding discs carefully. Many
jobs require the use of several grit sizes and
SANDING TIPS
For best results, tilt the Disc Sander at a 10°
to 15° angle while sanding so that only about
1" of the surface around the edge of the disc
contacts the work.
WARNING
!
If the disc (accessory) is held
flat or the back edge of the
disc comes in contact with the work, a violent
thrust to the side may result.
If sander is tilted too much, sanding action
will be too great and a rough cut surface or
gouging and snagging will result.
Guide the Disc Sander with crosswise
strokes. Be careful not to hold the sander in
one spot too long. Do not use a circular
motion, as this makes swirl marks. Test
before use on scrap stock.
Do not force or apply pressure when
sanding. Use only the weight of the tool for
pressure. Excess pressure actually slows the
tool down. If faster stock removal is desired,
change to a coarser grit disc.
Remove gummy paint from metal with an
“open coat” disc. Sand until sparks start to
at times both “open coat and closed coat”
discs are required to get the job done faster.
See chart for application examples.
peration:Refinishing painted wood or metal surfaces.
O
REMARKSGRIT
To remove paint and to smoothCoarse
urface irregularities. 16-24-30
s
o smoothMedium
T
he rough sanding. 36-50-80
t
o remove scratches left by Fine
T
revious discs. 100-120
p
To smooth surfaces for painting, Very Fine
polishing or waxing. 1
50-180
appear, then stop and change to a “closed
coat” disc to remove any remaining paint.
SANDING WOOD
When sanding wood the direction of the disc
motion at the contact point should parallel the
grain as much as possible. The rapid cut of
discs and the swirl type scratch pattern they
occasionally create generally prohibit their
use for producing the final finish.
Scratches and circular marks are usually the
result of using too coarse a grit. When
changing to a finer grit, move across the
sanding lines that were made by a previous
coarser disc.
SANDING METAL
When sanding automobiles or appliances,
wipe the metal clean with a non-flammable
solvent or commercial cleaner to remove all
wax and grease. By doing this first, the
sanding discs will sand better and last longer.
For heavy duty work, use a coarse grit disc
first. Follow-up with a medium grit to remove
scratches. To produce smooth finish, use fine
grit disc.
-11-
BM 1609929J64 12-05 12/12/05 4:07 PM Page 12
Wire Brush Operations
Wire brushes are intended to “clean”
structural steel, castings, sheet metal, stone
and concrete. They are used to remove rust,
s
cale and paint.
!
WARNING
when working corners, sharp edges etc. This
c
an cause loss of control and kick-back.
Avoid bouncing and snagging
the wire brush, especially
1. Remember, the tips of a wire brush do the
BRUSHING PRESSURE
work. Operate the brush with the lightest
pressure so only the tips of the wire come in
contact with the work.
2. If heavier pressures are used, the wires
will be overstressed, resulting in a wiping
CORRECT:
Wire tips doing
the work.
Maintenance
action; and if this is continued, the life of the
brush will be shortened due to wire fatigue.
3. Apply the brush to the work in such a way
that as much of the brush face as possible is
in full contact with the work. Applying the side
or edge of the brush to the work will result in
wire breakage and shortened brush life.
INCORRECT:
Excessive
pressure can
cause wire
breakage.
Service
WARNING
!
personnel may result in misplacing of
internal wires and components which
could cause serious hazard.
recommend that all tool service be performed
by a Bosch Factory Service Center or Authorized Bosch Service Station.
Your Bosch tool has been properly lubricated
and is ready to use. It is recommended that
tools with gears be regreased with a special
gear lubricant at every brush change.
Preventive maintenance
performed by unauthorized
We
TOOL LUBRICATION
The brushes and commutator in your tool
CARBON BRUSHES
have been engineered for many hours of
dependable service. To maintain peak
efficiency of the motor, we recommend every
two to six months the brushes be examined.
Only genuine Bosch replacement brushes
specially designed for your tool should be used.
BEARINGS
After about 300-400 hours of operation, or at
every second brush change, the bearings
should be replaced at Bosch Factory Service
Center or Authorized Bosch Service Station.
Bearings which become noisy (due to heavy
load or very abrasive material cutting) should
be replaced at once to avoid overheating or
motor failure.
-12-
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