Bosch Power Tools BH2760VC, BH2770VCD User Manual
BRUTE
TURBO
BRUTE
BRUTE
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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
BH2760VC
BH2770VC
TURBO
Call Toll Free for
Consumer Information
& Service Locations
1-877-BOSCH99 (1-877-267-2499) www.boschtools.com
For English Version Version française Versión en español
See page 2 Voir page 11 Ver la página 20
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
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General Power Tool Safety Warnings
WARNING
!
Read all safety warnings and all instructions. Failure to follow the warnings
and instructions may result in electric shock, fire and/or serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
Work area safety
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. Power
tools create sparks which may ignite the dust
or fumes.
Keep children and bystanders away while
operating a power tool. Distractions can
cause you to lose control.
Electrical safety
Power tool plugs must match the outlet.
Never modify the plug in any way. Do not
us e a ny adapter pl ug s with earthe d
(grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of electric
shock.
Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges
and refrigerators. There is an increased risk
of electric shock if your body is earthed or
grounded.
Do not 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
for carrying, pulling or unplugging the power
tool. Keep cord away from heat, oil, sharp
edges or moving parts. Damaged or entangled
cords increase the risk of electric shock.
When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor use
reduces the risk of electric shock.
If operating a power tool in a damp location
is unavoidable, use a Ground Fault Circuit
Interrupter (GFCI) protected supply. Use of
an GFCI reduces the risk of electric shock.
Personal safety
Stay alert, watch what you are doing and
us e co mmon sense w hen opera ting a
power tool. Do not use a power tool while
you are tired or under the influence of drugs,
alcohol or medication. A moment of inattention
while operating power tools may result in
serious personal injury.
Use personal protective equipment. Always
wear eye protection. Protective equipment
such as dust mask, non-skid safety shoes, hard
hat, or hearing protection used for appropriate
conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the
sw itch is in th e o ff-po sitio n b efore
connecting to power source and / or battery
pa ck, picki ng up or carrying the t ool.
Carrying power tools with your finger on the
switch or energizing power tools that have the
switch on invites accidents.
Remove any adjusting key or wrench before
turning the power tool on. A wrench or a
key left attached to a rotating part of the
power tool may result in personal injury.
Do not overreach. Keep proper footing and
balance at all times. This enables better
co ntrol of the power to ol in unexpe ct ed
situations.
Dress properly. Do not wear loose clothing
or jewelry. Keep your hair, clothing and
gloves away from moving parts. Loose
clothes, jewelry or long hair can 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. Use of dust collection can reduce dust-
related hazards.
Power tool use and care
Do not forc e the power to ol. 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. Any power tool that
ca nn ot be co nt ro ll ed wi th th e swi tc h is
dangerous and must be repaired.
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Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
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 tool’s operation. If damaged,
have the power tool repaired before use.
Ma ny acci de nt s ar e ca us ed by poorly
maintained power tools.
Demolition Hammer Safety Rules
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 instructions,
taking into account the working conditions
and the work to be performed. Use of the
power tool for operations different from those
intended could result in a hazardous situation.
Service
Have your power tool serviced by a qualified
re pa ir person u sing on ly identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
Wear ear protectors. Exposure to noise can
cause hearing loss.
Use auxiliary handle(s), if supplied with the
tool. Loss of control can cause personal injury.
Hold power tools by insulated gripping
surfaces, when performing an operation
where the cutting tool may contact hidden
wiring or its own cord. Cutting accessory
contacting a "live" wire may make exposed
metal parts of the power tool "live" and could
give the operator an electric shock.
Do not cut or drill into gas lines. Use a
metal detector to determine if there are
metal 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.
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.
Al ways wear s afety go ggles or e ye
protection when using this tool. Use a dust
mask or respirator for applications which
ge nerate 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 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 st rike t he bit with a handhel d
ha mmer or sledge hammer when
attempting to dislodge a bound or jammed
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bit. Fragments of metal from the bit could
dislodge and strike you or bystanders.
Never place the tool down until the motor
has come to a complete stop.
Do not use dul l or damaged bit s and
accessories. Dull or damaged bits have a
greater tendency to bind in the workpiece.
Additional Safety Warnings
GFCI and personal protection devices like
electrician’s rubber gloves and footwear will
further enhance your personal safety.
Do not use AC only rated tools with a DC
power supply. While the tool may appear to
work, the electrical components of the AC
rated tool are likely to fail and create a hazard
to the operator.
Keep handles dry, clean and free from oil
and grease. Slippery hands cannot safely
control the power tool.
Develop a periodic maintenance schedule
for your tool. When cleaning a tool be
careful not to disassemble any portion of
th e tool since inter nal wires may be
misplaced or pinched or safety guard return
sp rings ma y be impro perly mo unted .
Certain cleaning agents such as gasoline,
carbon tetrachloride, ammonia , etc. may
damage plastic parts.
Risk of injury to user. The power cord must only
be serviced by a Bosch Factory Service Center
or Autho rized Bosch Service Station.
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.
WARNING
!
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.
Yo ur ri sk from these ex po sures varies,
depending on how often you do this type of
work. To reduce your exposure to th ese
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.
Some dust created by power
sanding, sawing, grinding,
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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.
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
n Rated speed Maximum attainable speed
.../min Revolutions or reciprocation 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
per minute 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
Li-ion RBRC seal Designates Li-ion battery recycling
program
Ni-Cad RBRC seal Designates Ni-Cad battery recycling
program
Read manual symbol Alerts user to read manual
Wear eye protection symbol Alerts user to wear eye protection
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Symbols (continued)
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.
This symbol designates that this tool is listed by Underwriters Laboratories.
This symbol designates that this tool is recognized by Underwriters Laboratories.
This symbol designates that this tool is listed by Underwriters Laboratories,
to United States and Canadian Standards.
This symbol designates that this tool is listed by the Canadian Standards
Association.
This symbol designates that this tool is listed by the Canadian Standards
Association, to United States and Canadian Standards.
This symbol designates that this tool is listed by the Intertek Testing
Services, to United States and Canadian Standards.
This symbol designates that this tool complies to NOM Mexican Standards.
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Functional Description and Specifications
!
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.
Demolition Hammer
AIR VENTS
PADDLE ON/OFF
SWITCH
RUBBERIZED
GRIP
FIG. 1
AIR VENTS
NON SLIP TOOL REST
RUBBERIZED
GRIP
AIR VENTS
TOOL RETAINER
LEVER
BOSCH INTERNAL
LOCKING STEEL
Model number BH2760VC & BH2770VC Turbo
Voltage rating 120 V 50 - 60Hz
Amperage rating 15.0 A
No load speed n
1000/min
0
Shank style Standard 1-1/8" hex, air tool steel
or Bosch internal locking steel.
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Assembly
INSTALLING ACCESSORIES
Clean the insert shank end of the accessory to
remove any debris, then lightly grease with a
light oil or lubricant. If work is to be done
where the accessories are changed frequently
and laid in dirt, sand or concrete dust, it is best
not to grease the shank after wiping clean.
To lock standard air steel in place, Raise the
tool retainer lever all the way up and around to
the opposite side. To lock, insert air steel up to
the striker and raise the retainer lever around
the shank below the accessory collar as shown
in figure 2.
To lock Bosch internal locking steel in place,
raise tool retainer until you can slid e the
internal locking steel up to the striker. NOTE:
notch on internal locking steel should always
face toward the retainer lever. To lock, lower
COLLAR
(Standard air steel)
the tool retainer lever all the way down as
shown in figure 3.
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 u ndamaged
accessories is more than offset by the "time
sa ved" in operating th e tool with sharp
accessories.
REMOVING ACCESSORIES
!
WARNING
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.
TOOL RETAINER
LEVER
Accessories may be hot after
use. Avoid contact with skin
STANDARD AIR
STEEL
FIG. 2
NOTCH
(Bosch internal
locking steel)
TOOL RETAINER
LEVER
-8-
BOSCH INTERNAL
LOCKING STEEL
FIG. 3
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Operating Instructions
PADDLE "ON/OFF" SWITCH
The paddle switch enables the operator to
control the switch functions of "ON /OFF".
TO SWITCH THE TOOL "ON": Squeeze
and hold the paddle lever. TO SWITCH THE
"TOOL TIPS"
The tool may be switched on with either hand.
Balance the tool with both hands and rest the
tool on the hip.
For the best penetration rates in concrete, run
the tool with a steady pressure, but do not use
excessive forc e as this will decrease the
efficiency of the tool. Start chipping with the
tool in a straight in position until the surface to
be broken is chipped. Draw the hammer back
at an angle of 60˚ with the surface to be
broken. Apply only enough force to keep the
tool weight on the accessory
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
TOOL "OFF ": Release pressure on the
paddle lever. The switch is spring loaded and
will return automatically.
(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.
Avoid no load running of the tool. No load or
"empty blows" is the most damaging factor to
any impact hammer.
An electric 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.
Es ta blish an d foll ow a se t mainte na nce
program.
Maintenance
Service
!
WARNING
per so n ne l 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 Autho rized 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.
Pr event ive ma inten ance
performed by unauthorized
TOOL LUBRICATION
The brushes and commutator in your tool have
CARBON BRUSHES
be en e ngineer ed f or many ho urs of
dependable service.
Your tool is equipped with a Pop-out brush
system. The tool will shut off when brush
re placeme nt , lu brication and prevent ive
maintenance are needed.
Only genuine Bosch replace ment 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 Au thorized Bosch Service Station.
Bearings which become noisy (due to heavy
load or very abrasive material cut ting) should
be replaced at once to avoid overheating or
motor failure.
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Cleaning
!
WARNING
th e p ow er su pply be fore cleaning or
performing any main tenance. The tool may
be cleaned most effectively with compressed
dry air. Always wear safety gog gles when
cleaning tools with compressed air.
To avoid accidents always
dis connect the tool from
Extension Cords
!
WARNING
adequate size conductors that is capable
of carrying the current necessary for your
tool mu st be used. Th is will preven t
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
heav i er the cord.
If a n ex te nsion co rd is
necessa ry , a co rd with
Ventilation openings and switch levers must
be kept clean and free of foreign matter. Do
not at tempt to clean by inserting pointed
objects through openings.
!
CAUTION
Ce rtain clean ing ag ents
and s ol v en ts da mage
plastic parts. Some of these are: gasoline,
carbon tetrachlo ride, chlo rinated cleaning
solvent s, amm on ia and house hol d
detergents that contain ammonia.
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
2
Accessories
* Hammer hauler (Model BH2760VC only)
(*= standard equipment)
(**= optional accessories)
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