Bosch 11232EVS, 11233EVS, 11244E User Manual

Operating/Safety Instructions

Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento

y seguridad

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 10 Ver página 18

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

11232EVS

11233EVS

11244E

BM 2610995775 2/03 2/12/03 10:18 AM 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.

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.

!

WARNING

Power Tool Safety Rules

BM 2610995775 2/03 2/12/03 10:18 AM Page 2

-3-

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.

Rotary Hammer Safety Rules

Hold tools by insulated gripping surfaces
when performing an operation where the
cutting tool may contact hidden wiring or it
own cord. Contact with a "live" wire will make

exposed metal parts of the tool "live" and
shock the operator. Do not drill, fasten or

break into existing walls or other blind areas
where electrical wiring may exist. If this
situation is unavoidable, disconnect all fuses
or circuit breakers feeding this worksite.

Wear ear protectors when using the tool
for extended periods. Prolonged exposure to

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.

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

Always use the side handle for maximum
control over torque reaction or kick-back.
Never attempt to operate this tool with one

hand. The slip clutch engages if you firmly

control the tool during a torque reaction or
kickback.

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

protection will help deflect fragments of the
material that may be thrown toward your face
and eyes. Dust generated or gases released
from the material you are cutting (i.e. asbestos
insulated pipes, radon) may cause respiratory
difficulties.

Use thick cushioned gloves and limit the
exposure time by taking frequent rest
periods. Vibration caused by hammer-drill

action may be harmful to your hands and
arms.

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

spinning bit it could entrap you causing
serious personal injury.

BM 2610995775 2/03 2/12/03 10:18 AM Page 3

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

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

Do not strike the bit with a handheld
hammer or sledge hammer when
attempting to dislodge a bound or jammed
bit. Fragments of metal from the bit could

dislodge and strike you or bystanders.

Never place the tool down until the bit or
accessory have come to a complete stop.

Do not use dull or damaged bits and
accessories. Dull or damaged bits have a

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.

Accessories may be hot after prolonged use.

Do not run the tool while carrying it at your
side. The spinning drill bit may become

entangled with clothing and injury may result.

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 2610995775 2/03 2/12/03 10:18 AM 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 2610995775 2/03 2/12/03 10:18 AM Page 5

-6-

Model number 11232EVS 11233EVS 11244E
Voltage rating 120 V 50 - 60Hz 120 V 50 - 60Hz 120 V 50 - 60Hz
Amperage rating 8.8 A 8.8 A 8.8 A
No load speed n

0

1,600-3,200/min n0 1,600-3,200/min n0 3,200/min

Maximum Capacities:
Carbide tipped bits 1 1/2" 1 1/2" 1 1/2"
Thru hole bits 2 1/2" 2 1/2" 2 1/2"
Thick wall core bits 3 1/2" 3 1/2" 3 1/2"

Functional Description and Specifications

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

Rotary Hammers

TOOL

HOLDER

LOCK
BOLT

AUXILIARY

HANDLE

HAND GRIP

* SELECTOR

LEVER

TRIGGER

SWITCH

* RELEASE

BUTTON

* DEPTH

GAUGE

VENTILATION

OPENINGS

FIG. 1

* VARIABLE

SPEED DIAL

* SERVICE

REMINDER

LIGHT

WING

KNOB

* NOT AVAILABLE ON ALL MODELS

BM 2610995775 2/03 2/12/03 10:18 AM Page 6

TRIGGER "ON-OFF" SWITCH

To turn the tool “ON” squeeze the trigger
switch. To turn the tool “OFF”, release the
trigger switch, which is spring loaded and
will return to the “OFF” position
automatically.

To increase switch life, do not turn switch on
and off while tool is under load.

VARIABLE SPEED DIAL

(Models 11232EVS & 11233EVS only)

Your tool is equipped with a variable speed
dial. The impact rate (BPM) and rotating
speed (RPM) can be varied according to the
type of work being performed by setting the
variable speed dial to the selected setting.
The chart below will help you to determine
which setting to use for your application.
However, a pre-test will determine the best
speed setting, as the chart is intended only
as a guide. Once the proper setting is
determined the impact rate and rotating
speed is kept constant by means of the
"Electronic Feedback Circuitry". The variable
speed dial can be adjusted while the motor
is running with the tool free from work,
allowing the operator to adjust the impact
rate and rotating speed according to the
actual application.

ELECTRONIC FEEDBACK CIRCUITRY

(EFC)

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 pre­selected impact rate and rotating speed
virtually constant between no-load and load
conditions.

INSTALLING ACCESSORIES

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

Pull the lock bolt outward and rotate it 180˚.
Insert hex shank into the tool holder, with the
recess on the shank facing downward.
Return the lock bolt to the original position.
Pull outward on the accessory to be certain
it is locked into the tool holder (Fig. 1).

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 ACCESSORIES

Accessories may be hot after use. Avoid
contact with skin and use proper protective
gloves or cloth to remove.

To remove an accessory,

reverse the previous
directions. All accessories should be wiped
clean after removing.

SELECTOR LEVER

(Model 11233EVS only)

The selector lever allows the tool to be set
for various applications as listed in the
following chart, (Fig. 2).

When using demolition or chipping bits such
as bull points, chisels, spades, gouges, etc.
the “Hammer Only” mode must be selected.

-7-

Operating Instructions

!

WARNING

Chipping (Demolition)

Area of application Control setting

Plaster work 1 - 2
Removing tiles 3
Brick work 4
Concrete 5 - 6

Drilling Holes

Lower speeds Higher speeds

Accurate starts Faster penetration

Minimize breakouts
when the bit exits
the material.

Drilling/Hammering:

used for drilling with solid
carbide bits and core bits

Hammering Only:

used for chipping and
demolition work

FIG. 2

BM 2610995775 2/03 2/12/03 10:18 AM Page 7

For the best penetration rates in concrete,
run the tool with a steady pressure, but do
not use excessive force as this will decrease
the efficiency of the tool.

All grease packed 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.

A rotary hammer is likely to be the most
expensive portable tool at the construction
job. The long wear and efficient operation of
the BOSCH hammers will more than justify
the cost for tools of this type. As earlier
pointed out, sharp accessories as well as
clean air vents are necessary for efficient
operation. Establish and follow a set
maintenance program.

-8-

SLIP CLUTCH

The tool has a internal pre-set slip clutch.
The output spindle will stop rotating if the
accessory binds and overloads the tool.

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.

DEPTH GAUGE

(Models 11232EVS & 11233EVS only)

Your drilling depth can be pre-set and/or
repeated by using the depth gauge.

Setting depth: After the auxiliary handle is
installed, slide the depth gauge to desired
depth and securely tighten wing knob.

"TOOL TIPS"

BM 2610995775 2/03 2/12/03 10:18 AM Page 8

-9-

* Auxiliary handle
* Carrying case
* Depth gauge (11232EVS & 11233EVS only)

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

If an extension cord is

necessary, a cord with
adequate size conductors that is capable
of carrying the current necessary for your
tool must be used. This will prevent

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

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

RECOMMENDED SIZES OF EXTENSION CORDS

120 VOLT ALTERNATING CURRENT TOOLS

Tool’s

Ampere

Rating

Cord Size in A.W.G.

Wire Sizes in mm

2

3-6
6-8

8-10
10-12
12-16

18 16 16 14 .75 .75 1.5 2.5
18 16 14 12 .75 1.0 2.5 4.0
18 16 14 12 .75 1.0 2.5 4.0
16 16 14 12 1.0 2.5 4.0 —
14 12 — — — — — —

25 50 100 150 15 30 60 120

Cord Length in Feet Cord Length in Meters

!

WARNING

Accessories

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.

SERVICE REMINDER LIGHT

(Models 11232EVS & 11233EVS only)

When the service reminder light lights up or
blinks, this will indicate that the cut-out
carbon brushes will switch off the tool in
approximately 8 hours. After that period, the
light will go off and the tool will stop running.
The tool must then be sent to a service
center for service.

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

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 2610995775 2/03 2/12/03 10:18 AM Page 9