BOSCH 1710A, 1711A User guide

Operating/Safety Instructions

Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento

y seguridad

1710A

1711A

IMPORTANT: IMPORTANT : IMPORTANTE:

Read Before Using Lire avant usage Leer antes de usar

For English Parlez-vous français? ¿Habla español?
See page 2 Voir page 13 Ver página 24

Consumer Information

Renseignement des consommateurs

Información para el consumidor

Toll Free Number: Appel gratuit : Número de teléfono gratuito:

1-877-BOSCH99 (1-877-267-2499) http://www.boschtools.com

BM 1609929C87 3/03 3/10/03 3:50 PM Page 1

Read and understand all instructions. Failure to follow all instructions
listed below, may result in electric shock, fire and/or serious personal injury.

SAVE THESE INSTRUCTIONS

-2-

Work Area

Keep your work area clean and well lit.

Cluttered benches and dark areas invite
accidents.

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.

Keep by-standers, children, and visitors
away while operating a power tool.

Distractions can cause you to lose control.

Electrical Safety

Double Insulated tools are equipped with
a polarized plug (one blade is wider than
the other.) This plug will fit in a polarized
outlet only one way. If the plug does not
fit fully in the outlet, reverse the plug. If it
still does not fit, contact a qualified
electrician to install a polarized outlet. Do
not change the plug in any way. Double

Insulation eliminates the need for the
three wire grounded power cord and
grounded power supply system. Before

plugging in the tool, be certain the outlet
voltage supplied is within the voltage marked
on the nameplate. Do not use “AC only”
rated tools with a DC power supply.

Avoid body contact with grounded surfaces
such as pipes, radiators, ranges and
refrigerators. There is an increased risk of

electric shock if your body is grounded. If
operating the power tool in damp locations is
unavoidable, a Ground Fault Circuit Interrupter
must be used to supply the power to your
tool. Electrician’s rubber gloves and footwear
will further enhance your personal safety.

Don't expose power tools to rain or wet
conditions. Water entering a power tool will

increase the risk of electric shock.

Do not abuse the cord. Never use the cord
to carry the tools or pull the plug from an
outlet. Keep cord away from heat, oil, sharp
edges or moving parts. Replace damaged
cords immediately. Damaged cords increase

the risk of electric shock.

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. Refer to
“Recommended sizes of Extension Cords” in
the Accessory section of this manual.

Personal Safety

Stay alert, watch what you are doing and
use common sense when operating a
power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or
medication. A moment of inattention while

operating power tools may result in serious
personal injury.

Dress properly. Do not wear loose clothing
or jewelry. Contain long hair. Keep your
hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or
long hair can be caught in moving parts.

Keep handles dry, clean and free from oil and
grease.

Avoid accidental starting. Be sure switch is
“OFF” before plugging in. Carrying tools with

your finger on the switch or plugging in tools
that have the switch “ON” invites accidents.

Remove adjusting keys or wrenches before
turning the tool “ON”. A wrench or a key that

is left attached to a rotating part of the tool
may result in personal injury.

Do not overreach. Keep proper footing and
balance at all times. Proper footing and

balance enables better control of the tool in
unexpected situations.

Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety

shoes, hard hat, or hearing protection must be
used for appropriate conditions.

Tool Use and Care

Use clamps or other practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand or

against your body is unstable and may lead to
loss of control.

!

WARNING

Power Tool Safety Rules

BM 1609929C87 3/03 3/10/03 3:50 PM Page 2

-3-

Angle Grinder Safety Rules

Do not force tool. Use the correct tool for
your application. The correct tool will do the

job better and safer at the rate for which it is
designed.

Do not use tool if switch does not turn it
“ON” or “OFF”. Any tool that cannot be

controlled with the switch is dangerous and
must be repaired.

Disconnect the plug from the power source
before making any adjustments, changing
accessories, or storing the tool. Such

preventive safety measures reduce the risk of
starting the tool accidentally.

Store idle tools out of reach of children and
other untrained persons. Tools are

dangerous in the hands of untrained users.

Maintain tools with care. Keep cutting tools
sharp and clean. Properly maintained tools,

with sharp cutting edges are less likely to bind
and are easier to control. Any alteration or
modification is a misuse and may result in a
dangerous condition.

Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tools

operation. If damaged, have the tool
serviced before using. Many accidents are

caused by poorly maintained tools. Develop a
periodic maintenance schedule for your tool.

Use only accessories that are recom­mended by the manufacturer for your
model. Accessories that may be suitable for

one tool, may become hazardous when used
on another tool.

Service

Tool service must be performed only by
qualified repair personnel. Service or

maintenance performed by unqualified
personnel could result in a risk of injury. For
example: internal wires may be misplaced or
pinched, safety guard return springs may be
improperly mounted.

When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.

Use of unauthorized parts or failure to follow
Maintenance Instructions may create a risk of
electric shock or injury. Certain cleaning
agents such as gasoline, carbon tetrachloride,
ammonia, etc. may damage plastic parts.

Always use proper guard with grinding
wheel. A guard protects operator from

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.

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. Contact with a “live” wire

will make exposed metal parts of the tool
“live” and shock the operator.

Always use auxiliary handle for maximum
control over torque reaction or kick-back.

Operation of the grinder without the side
handle 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. Wheels with

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.

Fragments from a wheel that bursts during
operation will fly away at great velocity
possibly striking you or bystanders.

BM 1609929C87 3/03 3/10/03 3:50 PM Page 3

Do not use grinding wheel that is larger
than the maximum recommended size for
your tool, or worn down damaged wheels
from larger grinders. Wheels intended for

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. Depressed

hub wheels or type 27 wheels are not
intended for side loading and may shatter
under overload.

Do not use this tool with “Woodcarving”
blade. Such blades create frequent kick-

back and loss of control.

Wear proper apparel while using a
sander/grinder. Face shield or at least

safety 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. If you lose control and

have the cord wrapped around your arm or
wrist it may entrap you and cause injury.

Avoid bouncing and snagging the wheel,
especially when working corners, sharp
edges etc. This can cause loss of control

and kick-back.

Regularily clean the tool’s air vents by
compressed air. Excessive accumulation of

powdered metal inside the motor housing
may cause electrical failures.

Do not grind or sand near flammable
materials. Sparks from the wheel could

ignite 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. The grinding wheel guard

cannot be used for most sanding operations
or for wire brushing.

When sanding, do not use oversized
sanding disc. Larger sanding disc will

extend 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.

Some dust created by

power sanding, sawing,
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 chemically-

treated 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.

-4-

!

WARNING

BM 1609929C87 3/03 3/10/03 3:50 PM Page 4

-5-

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.

Symbol Name Designation/Explanation

V Volts Voltage (potential)

A Amperes Current

Hz Hertz Frequency (cycles per second)

W Watt Power

kg Kilograms Weight

min Minutes Time

s Seconds Time

Diameter Size of drill bits, grinding wheels, etc.

n

0

No load speed Rotational speed, at no load

.../min Revolutions or reciprocation per minute Revolutions, strokes, surface speed,

orbits etc. per minute

0 Off position Zero speed, zero torque...

1, 2, 3, ... Selector settings Speed, torque or position settings.

I, II, III, Higher number means greater speed

Infinitely variable selector with off Speed is increasing from 0 setting

Arrow Action in the direction of arrow

Alternating current Type or a characteristic of current

Direct current Type or a characteristic of current

Alternating or direct current Type or a characteristic of current

Class II construction Designates Double Insulated

Construction tools.

Earthing terminal Grounding terminal

Warning symbol Alerts user to warning messages

Ni-Cad RBRC seal Designates Ni-Cad battery recycling

program

Symbols

0

This symbol designates
that this tool is listed by
Underwriters Laboratories.

This symbol designates
that this tool is listed by
the Canadian Standards
Association.

This symbol designates
that this tool is listed to
Canadian Standards by
Underwriters Laboratories.

This symbol

designates
that
this tool
complies
to NOM
Mexican
Standards.

This symbol designates
that this tool is listed by
Underwriters Laboratories,
and listed to Canadian
Standards by Underwriters
Laboratories.

BM 1609929C87 3/03 3/10/03 3:50 PM Page 5

-6-

Functional Description and Specifications

GRINDING

WHEEL

SPINDLE LOCK

SIDE

HANDLE

WHEEL
GUARD

VENTILATION

OPENINGS

Disconnect the plug from the power source before making any
assembly, adjustments or changing accessories. Such preventive safety

measures reduce the risk of starting the tool accidentally.

!

WARNING

NOTE: For tool specifications refer to the nameplate on your tool.

Model number 1710A 1711A
Max. wheel diameter 4 1/2" (115mm) 5" (125mm)
Spindle thread 5/8"-11 UNC 5/8"-11 UNC
Max. wire wheel 4" Dia. 4" Dia.
Max. wire cup brush 3" Dia. 3" Dia.
Max. sanding disc 4 1/2" Dia. 5" Dia.
Max. cut off wheel 4 1/2" Dia. 5" Dia.
Max. dry diamond wheel 4 1/2" Dia. 5" Dia.

Angle Grinders

PADDLE SWITCH WITH

"LOCK-OFF" AND

"LOCK-ON" FEATURE

SWITCH

RELEASE

LEVER

"LOCK-ON"

BUTTON

GUARD RELEASE /

ADJUSTMENT

BUTTON

BM 1609929C87 3/03 3/10/03 3:50 PM Page 6

WHEEL GUARD INSTALLATION

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 in
30° increments as necessary to ac­commodate the operation being performed.

To attach wheel guard DISCONNECT tool
from power source.

Position the guard on spindle neck so the
two arrows line up. Press guard onto spindle
against the force of the spring and rotate
guard 90° either direction until it clicks in
place, then adjust guard.

TO ADJUST GUARD: depress guard release
button, rotate guard to desired position,
release button and let it click into place.

TO REMOVE GUARD: depress release
button, rotate guard until arrows line up, and
lift guard off the spindle neck.

Assembly

-7-

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.

SIDE HANDLE

The side handle used to guide and balance
the 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.

!

WARNING

Disc Grinding Wheel Assembly

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.

TO REMOVE: Reverse procedure.

GRINDING

WHEEL

LOCK NUT

SPINDLE

WHEEL
GUARD

BACKING

FLANGE

LOCK NUT

GRINDING

WHEEL

BACKING

FLANGE

SPINDLE

BM 1609929C87 3/03 3/10/03 3:50 PM Page 7

Sanding Accessories Assembly

BACKING PAD

Before attaching a backing

pad be sure its maximum

safe operating speed is not exceeded by the
nameplate speed of the tool.

Wheel guard may not be

used for most sanding
operations. Always reinstall wheel guard
when converting back to grinding
operations.

TO INSTALL BACKING PAD AND

SANDING DISC

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.

TO REMOVE BACKING PAD AND

SANDING DISC

Disconnect tool from power source. Using
the lock nut wrench unscrew the nut from
the spindle, while holding spindle lock in.

WIRE BRUSH ASSEMBLY

Before assembling wire brush to this tool,
disconnect from the power source. Wire

brushes are equipped with their own
threaded hub, simply thread on to spindle.
Be sure to seat against shoulder before
turning tool “ON”.

SANDING

DISC

BACKING

PAD

LOCK NUT

WIRE

BRUSH

SPINDLE

!

WARNING

!

WARNING

-8-

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.

Do not use water or other
cooling fluid with this tool

for cutting.
Disconnect tool from power source before

attaching cutting wheel. With wheel guard in
place, assemble flange, cutting wheel and
lock nut as illustrated on page 7.

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.

WHEEL
GUARD

BACKING

FLANGE

DRY

DIAMOND

WHEEL

LOCK NUT

SPINDLE

!

WARNING

BM 1609929C87 3/03 3/10/03 3:50 PM Page 8

SELECTING GRINDING WHEELS

Before using a grinding

wheel, be certain that its
maximum safe operating speed is not
exceeded by the nameplate speed of the
grinder. Do not exceed the recommended
wheel diameter.

DISC GRINDING WHEELS

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.

GRINDING TIPS

Efficient grinding is achieved by controlling
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.

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.

-9-

Operating Instructions

PADDLE SWITCH WITH "LOCK-OFF" AND

"LOCK-ON" FEATURE

The Paddle switch enables the operator to
control the switch functions of "Lock-OFF",
"ON/OFF" and "Lock-ON".

TO UNLOCK SWITCH AND TURN TOOL
"ON": Push switch release lever backward to
unlock ON/OFF switch, then squeeze paddle
switch.

TO SWITCH TOOL "OFF": Release pressure
on paddle lever. The switch is spring loaded
and will return to "OFF" position
automatically.

"LOCK-ON" BUTTON

The "Lock-ON" feature, incorporated into
the paddle switch, is a convenience for long
operations.

TO LOCK SWITCH "ON": After paddle
switch has been activated push "Lock-ON"
button at rear of tool completely in and
release paddle switch.

TO SWITCH TOOL "OFF": Squeeze and
release paddle switch.

Hold the tool with both

hands while starting the
tool, since 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.

!

WARNING

"LOCK-ON"

BUTTON

SWITCH

RELEASE

LEVER

PADDLE
SWITCH

!

WARNING

!

WARNING

Grinding Operations

BM 1609929C87 3/03 3/10/03 3:50 PM Page 9

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.

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

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.

Wire brushes are intended to “clean”
structural steel, castings, sheet metal, stone
and concrete. They are used to remove rust,
scale and paint.

Avoid bouncing and snagging

the wire brush, especially
when working corners, sharp edges etc. This
can cause loss of control and kick-back.

!

WARNING

!

WARNING

Sanding Operations

Wire Brush Operations

SELECTING SANDING DISC

Sanding discs are made of extremely hard
and sharp aluminum oxide grits, phenol­resin 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

at times both “open coat and closed coat”
discs are required to get the job done faster.
See chart for application examples.

Operation: Refinishing painted wood or metal surfaces.

REMARKS GRIT

To remove paint and to smooth Coarse
surface irregularities. 16-24-30

To smooth Medium
the rough sanding. 36-50-80

To remove scratches left by Fine
previous discs. 100-120

To smooth surfaces for painting, Very Fine
polishing or waxing. 150-180

-10-

BM 1609929C87 3/03 3/10/03 3:50 PM Page 10

-11-

BRUSHING PRESSURE

1. Remember, the tips of a wire brush do the
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

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.

CORRECT:

Wire tips

doing the

work.

INCORRECT:

Excessive

pressure can

cause wire

breakage.

15°

Service

Preventive maintenance

performed by unauthorized
personnel may result in misplacing of
internal wires and components which
could cause serious hazard. We

recommend that all tool service be
performed by a Bosch Factory Service
Center or Authorized Bosch Service Station.

TOOL LUBRICATION

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.

CARBON BRUSHES

The brushes and commutator in your tool
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.

Cleaning

To avoid accidents always

disconnect the tool from
the power supply before cleaning or
performing any maintenance. The tool

may be cleaned most effectively with
compressed dry air. Always wear safety

goggles when cleaning tools with
compressed air.

Ventilation openings and switch levers must
be kept clean and free of foreign matter. Do
not attempt to clean by inserting pointed
objects through openings.

Certain cleaning agents

and solvents damage
plastic parts. Some of these are: gasoline,

carbon tetrachloride, chlorinated cleaning
solvents, ammonia and household
detergents that contain ammonia.

!

WARNING

!

WARNING

Maintenance

!

CAUTION

BM 1609929C87 3/03 3/10/03 3:50 PM Page 11