Bosch 11250VSRD User Manual

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BM 1619P02168 12-07 12/5/07 3:51 PM Page 1

IMPORTANT: IMPORTANT : IMPORTANTE:

Read Before Using Lire avant usage Leer antes de usar

Operating/Safety Instructions
Consignes de fonctionnement/sécurité

Instrucciones de funcionamiento y seguridad

11250VSRD

Call Toll Free for

Consumer Information

& Service Locations

Pour obtenir des informations

et les adresses de nos centres

de service après-vente,

appelez ce numéro gratuit

Llame gratis para

obtener información

para el consumidor y

ubicaciones de servicio

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

For English Version

Version française

See page 2 Voir page 15 Ver la página 28

Versión en español

BM 1619P02168 12-07 12/5/07 3:51 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-

A moment of

A wrench

This enables

-2-

BM 1619P02168 12-07 12/5/07 3:51 PM Page 3

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

c

ontrol 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.

Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp

Many accidents are caused by

Any power tool

Such preventive safety

SAVE THESE INSTRUCTIONS

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
instructions 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.

Risk of injury to user, power cord must only be
serviced by a Bosch Factory Service Center
or Authorized Bosch Service Station.

Certain cleaning agents such as

This will ensure that the

Rotary Hammer Safety Rules

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.

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.

Contact with a “live” wire

Holding the work by hand

Do not drill, fasten or break into existing
walls or other blind areas where electrical
wiring may exist.

unavoidable, disconnect all fuses or circuit
breakers feeding this worksite.

Wear ear protectors when using the tool for
extended periods.

high intensity noise can cause hearing loss.

Use a metal detector to determine if there
are gas or water pipes hidden in the work
area or call the local utility company for
assistance before beginning the operation.

If this situation is

Prolonged exposure to

-3-

BM 1619P02168 12-07 12/5/07 3:51 PM Page 4

Striking or cutting into a gas line will result in
explosion. Water entering an electrical device
may cause electrocution.

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

High torque 3/8" and larger chuck capacity
drills are equipped with auxiliary handles.

Always wear safety goggles or eye
protection when using this tool. Use a
dust mask or respirator for applications
which generate dust.

Use thick cushioned gloves and limit the
exposure time by taking frequent rest
periods.

action may be harmful to your hands and
arms.

Secure the material being drilled. Never
hold it in your hand or across legs.

Unstable support can cause the drill bit to
bind causing loss of control and injury.

Never leave the trigger locked "ON".
Before plugging the tool in, check that the
trigger lock is "OFF".

could cause injury.

Position the cord clear of rotating bit. Do
not wrap the cord around your arm or
wrist.

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

Position yourself to avoid being caught
between the tool or side handle and walls
or posts.

jammed in the work, the reaction torque of
the tool could crush your hand or leg.

If the bit becomes bound in the
workpiece, release the trigger
immediately, reverse the direction of
rotation and slowly squeeze the trigger to
back out the bit.

reaction torque. The drill body will tend to
twist in the opposite direction as the drill bit is
rotating.

Vibration caused by hammer-drill

Accidental start-ups

If you lose control and have the cord

Should the bit become bound or

Be ready for a strong

Do not grasp the tool or place your hands
too close to the spinning chuck or drill
bit.

Your hand may be lacerated.

When installing a drill bit, insert the shank
of the bit well within the jaws of the
chuck.

e

nough, the grip of the jaws over the bit is

reduced and the loss of control is increased.

Do not use dull or damaged bits and
accessories.

greater tendency to bind in the workpiece.

When removing the bit from the tool avoid
contact with skin and use proper
protective gloves when grasping the bit or
accessory.

prolonged use.

Check to see that keys and adjusting
wrenches are removed from the drill
before switching the tool "ON".

wrenches can fly away at high velocity
striking you or a bystander.

Do not run the drill while carrying it at
your side.

entangled with clothing and injury may result.

!

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.

If the bit is not inserted deep

Dull or damaged bits have a

Accessories may be hot after

A spinning drill bit could become

WARNING

Some dust created by
power sanding, sawing,

Keys or

-4-

0

BM 1619P02168 12-07 12/5/07 3:51 PM Page 5

Symbols

IMPORTANT: Some of the following symbols may be used on your tool. Please study them

a

nd 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

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

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

No load speed Rotational speed, at no load

orbits etc. per minute

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

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

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
the Canadian Standards
Association.

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

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BM 1619P02168 12-07 12/5/07 3:52 PM Page 6

Functional Description and Specifications

WARNING

!

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

reduce the risk of starting the tool accidentally.

Rotary Hammer

RELEASE BUTTON

SELECTOR DIAL

DRILL/HAMMER DRILL

SELECTION DIAL

LOCKING SLEEVE

DUST SHIELD

DUST CAP

DUST
SEAL

Such preventive safety measures

FIG. 1

VENTILATION

OPENINGS

REVERSING

SWITCH LEVER

VARIABLE SPEED

CONTROLLED

TRIGGER SWITCH

DUST EXTRACTION

RELEASE BUTTON

DUST CANISTER

DEPTH STOP

BUTTON

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

TELESCOPIC

GUIDE

Model number 11250VSRD
Shank style SDS-Plus

Maximum Capacities:

Concrete 3/4"
Steel
Wood
Carbide tipped bits 3/4"
Thin wall core bits 1-1/2"

DUST CANISTER

RELEASE BUTTON

OFFSET

AUXILIARY HANDLE

GUIDE ADJUSTMENT

BUTTON

DUST EXTRACTION

SYSTEM

®

1/2"
3/4"

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BM 1619P02168 12-07 12/5/07 3:52 PM Page 7

Assembly

!

WARNING

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.

INSTALLING SDS-plus®ACCESSORIES

Clean the insert shank end of the accessory to
remove any debris, then lightly grease with a
light oil or lubricant

Insert accessory into the chuck through the
dust shield, while twisting and pushing inward
until it locks automatically into place. Pull
outward on the accessory to be certain it is
locked into the chuck (Fig. 2).

®

FIG. 2

SDS-plus

CHUCK

DUST

SHIELD

NOTE: The high efficiency available from the
rotary hammers can only be obtained if sharp
and undamaged accessories are used. The
"cost" to maintain sharp and undamaged
accessories is more than offset by the "time
saved" in operating the tool with sharp
accessories.

REMOVING SDS-plus®ACCESSORIES

!

WARNING

Accessories may be hot after

use. Avoid contact with skin
and use proper protective gloves or cloth to
remove.

To remove an accessory, pull locking sleeve
backward and pull bit forward. All accessories
should be wiped clean after removing (Fig. 3).

FIG. 3

LOCKING

SLEEVE

OFFSET AUXILIARY HANDLE

The tool must be supported with the auxiliary
handle, which can be swiveled 360˚.

To reposition and/or swivel the handle, loosen
the hand grip, move the handle to the desired
position along the barrel and securely retighten
the hand grip (Fig. 4).

FIG. 4

HAND GRIP

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BM 1619P02168 12-07 12/5/07 3:52 PM Page 8

Dust Extraction

!

WARNING

mounted.

Do not drill into metal with
the dust extraction system

Hot metal chips can self-ignite or

ignite parts of the dust extraction system.

CAUTION

!

mounted.

Do not drill into wood with
dust extraction system

Wood chips are typically too large

and will clog the dust channel.

!

WARNING

Your tool is equipped with

a dust canister, empty it
frequently, after completion of drilling and
before storing the tool.

Be extremely
careful of dust disposal, materials in fine
particle form may be explosive.

Note: Do not use the dust extraction system
when chiselling, screwdriving or cutting threads.

The dust extraction system retracts during
operation so that the dust cap is always kept
close to surface being drilled.

REMOVING AND INSTALLING DUST

EXTRACTION SYSTEM

To remove dust extraction system, press and
hold the dust extraction release button and pull
away from tool housing (Fig. 5).

To install dust extraction system, align guide
grooves with the grooves in tool housing and
push toward tool until you hear it lock into place
(Fig. 5).

MICROFILTER DUST CANISTER

The integral dust extraction system collects
dust in a canister supplied with your extraction
system.

The dust level of the dust canister can easily be
checked through the transparent door (Fig. 6).

For maximum efficiency, the dust canister
should be emptied frequently during operation.

REMOVING DUST CANISTER

To remove dust canister, press the two canister
release buttons and pull canister downward out
of the dust extraction system (Fig. 6).

CLEANING AND EMPTYING THE

Before opening the dust canister, gently strike

DUST CANISTER

or tap it against a firm surface to loosen the
dust from the microfilter.

Open the transparent door and empty the dust
canister. Close transparent door.

Check the microfilter for damage. Replace it
immediately when damaged.

The dust extraction system automatically
switches on and off with the power tool.

For maximum dust extraction efficiency, please
observe the following.

• The drill bit being used may not project
beyond the dust cap as shown in figures 13 &

14. (Example for an SDS-plus drill bit: Max.
total length approx. 160 mm, working length
approx. 100 mm).

• Pay attention that the dust cap faces flush
against the workpiece or the wall. At the same
time, this makes working at a right angle easier.

• After reaching desired drilling depth, first pull
the drill bit out of the hole and then switch the
tool off.

• Check the condition of the microfilter regularly.
Replace a damaged microfilter immediately.

FIG. 5

GUIDE

GROOVES

TOOL

HOUSING

DUST EXTRACTION

SYSTEM

DUST EXTRACTION

RELEASE BUTTON

FIG. 6

CANISTER

RELEASE BUTTON

DUST

CANISTER

TRANSPARENT

DOOR

-8-

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BM 1619P02168 12-07 12/5/07 3:52 PM Page 9

INSTALLING DUST CANISTER

To install dust canister, push canister upward
into the dust extraction system until you hear it
lock into place (Fig. 6).

CHANGING THE MICROFILTER

For maximum efficiency, the microfilter should
b

e replaced after approx. 15 hours of

operation.

Remove the dust canister from the dust
extraction system (Fig. 6).

Lift the microfilter upward and remove old or
damaged filter from dust canister (Fig. 7).

Insert a new microfilter into the dust canister
and reinstall the dust canister (Fig. 7.)

Note: If the microfilter is damaged (e.g. holes,
damage to the soft sealing material), it must be
replaced immediately. Working with a
damaged microfilter can cause damage to the
power tool.

VACUUM ADAPTER DUST CANISTER
(Not included, available as accessory)

For dust extraction with a vacuum cleaner, the
(optional) vacuum adapter dust canister can be
inserted into the dust extraction system instead
of the dust canister, if required.

Press the two canister release buttons and pull
canister downward and remove from the dust
extraction system (Fig. 6).

Install vacuum adapter dust canister upward
into dust extraction system until you hear it lock
into place (Fig. 8).

To use this feature, attach vacuum hose
(optional accessory) to dust port, then connect
opposite end of the vacuum hose to a shop
vacuum cleaner. A vacuum hose adapter
(optional accessory) is available for connecting
this tool to a 1-1/4" or 1-1/2" vacuum hose (Fig. 8).

The vacuum cleaner must be suitable for the
material being drilled.

Also replace the microfilter when the
vacuuming performance is insufficient, even
when the dust canister is empty.

FIG. 7

MICROFILTER

DUST

CANISTER

VACUUM

ADAPTER DUST

CANISTER

VACUUM

HOSE

FIG. 8

DUST
PORT

Your drilling depth X can be pre-set and/or

DEPTH GAUGE

repeated by using the depth gauge.

After the auxiliary handle is installed, make
sure the accessory has been fully inserted into
the chuck before setting the depth gauge.

Set the depth gauge by compressing the
telescopic guide toward the tool. When the
desired length of the bit is exposed, press and
slide the depth stop button against the guide
housing and release the button (Fig. 9). The
depth gauge is spring loaded and will return to
the fully extended position when pressure has

-9-

X

BM 1619P02168 12-07 12/5/07 3:52 PM Page 10

been released. (When drilling, the telescopic
guide will compress until it engages the depth
stop button.)

ADJUSTING THE TELESCOPIC GUIDE

TO THE BIT LENGTH

For more convenient operation when using
s

hort drill bits, the length of the telescopic

guide can be adjusted to desired lengths.

FIG. 9

GUIDE

HOUSING

DEPTH STOP

BUTTON

TELESCOPIC

GUIDE

To adjust length, push and hold the guide
adjustment button, compress the telescopic
guide until dust cap is close to the tip of the drill
bit (Fig. 10). To lock adjustment, release
button.

To unlock adjustment, push the guide
a

djustment button.

DUST

CAP

DUST
SEAL

GUIDE

ADJUSTMENT

BUTTON

FIG. 10

DUST CAP FOR SMALL DRILL BITS

Your tool is equipped with a standard dust cap
for use with with small drill bits. To change the
dust cap, push the release button and pull the
dust cap out of the dust extraction system.

To insert the dust cap, push it into the end of
the dust extraction system until you hear it lock
into place (Fig. 11).

DUST CAP FOR CORE BITS
1-1/2" MAXIMUM CAPACITY

(Not included, available as accessory)

When using core bits, the dust cap for small
drill bits must be removed and replaced with a

FIG. 11

DUST CAP

FOR SMALL BITS

DUST CAP

RELEASE

BUTTON

special dust cap for core bits (optional
accessory).

When using the dust cap for core bits (optional
accessory), the vacuum adapter dust canister

-10-

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BM 1619P02168 12-07 12/5/07 3:52 PM Page 11

(optional accessory) must be used for dust
extraction, not the standard dust canister
(Fig. 12). If required, remove the dust cap for
small drill bits.

To insert the dust cap for core bits, push it from
above into the dust extraction system until you
h

ear it click into place (Fig. 12).

To remove of the dust cap for core bits, push
the release latch outward and pull off the dust
cap.

Operating Instructions

VARIABLE SPEED CONTROLLED

Your tool is equipped with a variable speed
trigger switch. The tool speed can be
controlled from the minimum to the maximum
nameplate RPM by the pressure you apply to
the trigger. Apply more pressure to increase
the speed and release pressure to decrease
speed. This accurate speed control enables
you to drill without center punching. It also
permits you to use as a power screwdriver.
Bits are available for driving screws as well
as running bolts and nuts (Fig. 1).

This tool is equipped with a rotating brush
reversing system. This results in longer tool life
while maximizing power in both forward and re­verse directions. The reverse switch can be
operated from either the right or left side of the
tool.

TRIGGER SWITCH

REVERSING SWITCH LEVER

FIG. 12

DUST CAP FOR CORE BITS

1-1/2" MAXIMUM CAPACITY

(optional accessory)

RELEASE

LATCH

VACUUM ADAPTER

DUST CANISTER

(optional accessory)

FOR FORWARD ROTATION: slide switch to
arrow marked forward (Fig. 13).

FOR REVERSE ROTATION: slide the slide
switch to arrow marked reverse. NOTE: Tool
will not operate in middle position.

FIG. 13

REVERSING

SWITCH

LEVER

The tool has an internal preset clutch. The

SLIP CLUTCH

clutch is set such that sufficient force is
transmitted to the bit for most drilling
conditions but it will slip when bit binds in the
hole or the tool is overloaded. Be aware that
due to required clutch setting, you may
experience a torque reaction an instant
before the clutch slips. This torque reaction

will twist the body of the rotary hammer in the
opposite direction as the bit rotates, i.e.,
counterclockwise. As clutch is slipping, the
bit will most likely stop rotating. When the
binding force on the bit is removed the clutch
automatically resets. If you experience bit
binding and clutch begins to slip, immediately
turn the tool "OFF" and correct the condition
leading to the bit binding.

-11-

BM 1619P02168 12-07 12/5/07 3:52 PM Page 12

D

RILL/HAMMER DRILL SELECTION DIAL

The selector dial allows the tool to be set for
various drilling/hammer drilling applications.
Depress release button and turn selector dial
right or left depending on the below
applications.

!

CAUTION

come to a complete stop.

rotation of the chuck can cause damage to
the tool.

Do not use demolition or chipping bits such
as bull points, chisels, spades, gouges, etc.

Do not operate the
selection dial until the tool

Shifting during

TOOL TIPS

Drill only action: For drilling in
woods, metals, plastics or
other non concrete materials.

Drill with hammer action: For
drilling in concrete, asphalt,
tile or other similar hard
materials.

Following a few simple tips will reduce wear
on the tool and the chance of injury to the
operator.

NOTE: The high efficiency available from
the rotary hammers can only be obtained if
sharp and undamaged accessories are used.
The “cost” to maintain sharp and undamaged
accessories is more than offset by the “time
saved” in operating the tool with sharp
accessories.

All hammers require a short period of time to
warm up. Depending on the room
temperature, this time may vary from
approximately 15 seconds (90˚F) to 2
minutes (32˚F). A new hammer requires a
break-in period before full performance is
realized. This period may require up to 5
hours of operation.

Carbide tipped bits: Used for drilling stone,
concrete, cement, brick, cinder block and
other unusually hard non-metals. The Rotary
Hammer is designed for “SDS” Carbide
Tipped Bits up to 3/4 inch diameter.

Recall these instructions for safe operation:

1. Some materials require slow drilling
speeds; whereas, others require higher speed
to produce the best results.

2. All work must be supported or secured
before drilling and steady, even pressure
applied in line with the drill bit.

3. As the drill bit cuts through the opposite
side, reduce the pressure and continue
running the drill as the bit is withdrawn.

Materials such as glass, porcelain, ceramics,
tiles, plastics, etc., should be drilled at low
speeds with specially designed drill bits and
lubricants.

DRILLING WOOD OR PLASTIC

CAUTION

!

mounted.

and will clog the dust channel.

If backing block is not used, ease up on the
pressure just before the bit breaks through
the wood to avoid splintering. Complete the
hole from the opposite side immediately after
the point breaks through. If bit binds, reverse
the drilling operation to help remove the bit
from the work.

!

WARNING

mounted.

ignite parts of the dust extraction system.

Make a center punch in the material for
easier starting. Use enough pressure to keep
the bit cutting. If the bit is allowed to merely
spin in the hole, it will become dull within a
short time. When drilling a larger hole, it is
faster and easier on your power pack to first
make a smaller hole and enlarge it to the
required size. Lubricate the tip of the bit
occasionally with CUTTING OIL for easier
metal drilling. If bit binds, reverse the drilling
to help remove the bit from the work.

Do not drill into wood with
dust extraction system

Wood chips are typically too large

DRILLING METAL

Do not drill into metal with
the dust extraction system

Hot metal chips can self-ignite or

-12-

BM 1619P02168 12-07 12/5/07 3:52 PM Page 13

Use carbide-tipped masonry bit for cinder

DRILLING MASONRY

block, mortar, common brick, soft stone and
other materials. The amount of pressure to
be used is dependent upon the type of

Maintenance

Service

WARNING

!

orized 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.

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.

After about 300-400 hours of operation, or at
every second brush change, the bearings

Preventive maintenance
performed by unauth-

We

TOOL LUBRICATION

CARBON BRUSHES

BEARINGS

material being drilled. Soft materials require
less pressure while the hard materials need
more pressure to prevent the drill bit from
skipping.

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

WARNING

!

the power supply before cleaning or
performing any maintenance.

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.

CAUTION

!

plastic parts.

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

To avoid accidents always
disconnect the tool from

The tool may

Certain cleaning agents
and solvents damage

Some of these are: gasoline,

Extension Cords

WARNING

!

adequate size conductors that is capable
of carrying the current necessary for your
tool must be used.

excessive voltage drop, loss of power or
overheating. Grounded tools must use 3-wire
extension cords that have 3-prong plugs and
receptacles.

NOTE: The smaller the gauge number, the
heavier the cord.

If an extension cord is
necessary, a cord with

This will prevent

RECOMMENDED SIZES OF EXTENSION CORDS

120 VOLT ALTERNATING CURRENT TOOLS

Tool’s

Ampere

Rating

3-6
6-8

8-10
10-12
12-16

Cord Size in A.W.G.

Cord Length in Feet Cord Length in Meters

25 50 100 150 15 30 60 120

18 16 16 14 0.75 0.75 1.5 2.5
18 16 14 12 0.75 1.0 2.5 4.0
18 16 14 12 0.75 1.0 2.5 4.0
16 16 14 12 1.0 2.5 4.0 —
14 12 — — — — — —

Wire Sizes in mm

-13-

2

BM 1619P02168 12-07 12/5/07 3:52 PM Page 14

Accessories

* 360° Auxiliary Handle
* Dust extraction system
* Dust cap
* Dust seal
** Dust cap (for hole saws)
** Vacuum adapter dust canister

Not recommended for use with the 3-jaw chuck and the straight chuck SDS adaptor

** Vacuum hose Adapter
** Vacuum hose
* Carrying Case

(*= standard equipment)
(**= optional accessories)

-14-