Bosch GSH 16-28 manual

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  • Brand: Bosch
  • Product: Concrete breaker
  • Model/name: GSH 16-28
  • Filetype: PDF
  • Available languages: , , , , , , , , , , , , , , , , , , , , , ,

Table of Contents

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GSH 16-30
GSH 16-28
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16-28 Page 4 Wednesday, January 17, 2007 10:39 AM
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16-30 Page 5 Thursday, July 13, 2006 8:42 AM
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General Power Tool Safety
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 ref-
The term “power tool” in the warnings refers to your
mains-operated (corded) power tool or battery-oper-
ated (cordless) power tool.
1) Work area safety
a) Keep work area clean and well lit. Cluttered
or dark areas invite accidents.
b) 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
c) Keep children and bystanders away while
operating a power tool. Distractions can
cause you to lose control.
2) Electrical safety
a) 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. Unmodified plugs
and matching outlets will reduce risk of electric
b) Avoid body contact with earthed or
grounded surfaces, such as pipes, radia-
tors, ranges and refrigerators. There is an
increased risk of electric shock if your body is
earthed or grounded.
c) Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
d) 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 and moving parts. Damaged or
entangled cords increase the risk of electric
e) 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.
f) If operating a power tool in a damp loca-
tion is unavoidable, use a residual current
device (RCD) protected supply. Use of an
RCD reduces the risk of electric shock.
3) Personal safety
a) 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. A moment of
inattention while operating power tools may
result in serious personal injury.
b) 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 inju-
c) Prevent unintentional starting. Ensure the
switch is in the off-position before con-
necting to power source and/or battery
pack, picking up or carrying the tool. Carry-
ing power tools with your finger on the switch or
energising power tools that have the switch on
invites accidents.
d) 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.
e) Do not overreach. Keep proper footing and
balance at all times. This enables better con-
trol of the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing
or jewellery. Keep your hair, clothing and
gloves away from moving parts. Loose
clothes, jewellery or long hair can be caught in
moving parts.
g) 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.
4) Power tool use and care
a) Do not force the power tool. Use the cor-
rect power tool for your application. The
correct power tool will do the job better and
safer at the rate for which it was designed.
b) Do not use the power tool if the switch
does not turn it on and off. Any power tool
that cannot be controlled with the switch is dan-
gerous and must be repaired.
c) 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.
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d) Store idle power tools out of the reach of
children and do not allow persons unfamil-
iar with the power tool or these instruc-
tions to operate the power tool. Power tools
are dangerous in the hands of untrained users.
e) Maintain power tools. Check for misalign-
ment or binding of moving parts, breakage
of parts and any other condition that may
affect the power tool’s operation. If dam-
aged, have the power tool repaired before
use. Many accidents are caused by poorly main-
tained power tools.
f) Keep cutting tools sharp and clean. Prop-
erly maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to
g) Use the power tool, accessories and tool
bits etc. in accordance with these instruc-
tions, taking into account the working con-
ditions and the work to be performed. Use
of the power tool for operations different from
those intended could result in a hazardous situ-
5) Service
a) Have your power tool serviced by a quali-
fied repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
Safety Warnings
f Wear hearing protection. Exposure to noise can
cause hearing loss.
f Use suitable detectors to determine if utility
lines are hidden in the work area or call the
local utility company for assistance. Contact
with electric lines can lead to fire and electric shock.
Damaging a gas line can lead to explosion. Pene-
trating a water line causes property damage or may
cause an electric shock.
f Hold the power tool only by the insulated
gripping surfaces when performing an opera-
tion where the cutting tool may contact hid-
den wiring or its own power cord. Contact with
a “live” wire will also make exposed metal parts of
the power tool “live” and shock the operator.
f When working with the machine, always hold
it firmly with both hands and provide for a
secure stance. The power tool is guided more
secure with both hands.
f Secure the workpiece. A workpiece clamped
with clamping devices or in a vice is held more
secure than by hand.
f Do not work materials containing asbestos.
Asbestos is considered carcinogenic.
f Take protective measures when dust can
develop during working that is harmful to
one’s health, combustible or explosive. Exam-
ple: Some dusts are regarded as carcinogenic.
Wear a dust mask and work with dust/chip extrac-
tion when connectable.
f Always wait until the machine has come to a
complete stop before placing it down. The tool
insert can jam and lead to loss of control over the
power tool.
f Never use the machine with a damaged cable.
Do not touch the damaged cable and pull the
mains plug when the cable is damaged while
working. Damaged cables increase the risk of an
electric shock.
Functional Description
Read all safety warnings and all
instructions. Failure to follow the warn-
ings and instructions may result in electric
shock, fire and/or serious injury.
While reading the operating instructions, unfold the
graphics page for the machine and leave it open.
Intended Use
The machine is intended for heavy chiselling and dem-
olition work as well as for driving in and compacting
with the appropriate accessories. Page 13 Thursday, July 13, 2006 8:42 AM
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Technical Data
Product Features
The numbering of the product features refers to the
illustration of the machine on the graphics page.
1 Handle
2 On/Off switch
3 Carrying handle
4 Knurled nut for carrying handle
5 Limit bolt (GSH 16-30)
6 Tool retainer (GSH 16-28)
7 Tool shank
8 Tool holder
9 Shoulder
The accessories illustrated or described are not
included as standard delivery.
Noise/Vibration Information
Measured values determined according to
2000/14/EG and EN 60745.
Typically the A-weighted noise level of the machine is:
sound pressure level 92 dB(A); sound power level
103 dB(A). Uncertainty K=2 dB.
Wear hearing protection!
Overall vibrational values (vector sum of three direc-
tions) determined according to EN 60745:
Chiselling: Vibration emission value ah=10 m/s2
uncertainty K=2 m/s2
The vibration emission level given in
this information sheet has been meas-
ured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with
The vibration emission level will vary because of the
ways in which a power tool can be used and may
increase above the level given in this information sheet.
This could lead to a significant underestimate of expo-
sure when the tool is used regularly in such a way.
Note: To be accurate, an estimation of the level of
exposure to vibration experienced during a given period
of work should also take into account the times when
the tool is switched off and when it is running but not
actually doing the job. This may significantly reduce the
exposure level over the total working period.
Declaration of Conformity
We declare under our sole responsibility that this prod-
uct is in conformity with the following standards or
standardization documents: EN 60745 according to
the provisions of the directives 89/336/EEC,
98/37/EC, 2000/14/EC.
2000/14/EC: The guaranteed sound power level LWA
is below 105 dB(A). The valuation procedure for the
conformity is in accordance with appendix VI.
Designated testing authority:
Am TÜV 1, 30519 Hannover
Leinfelden, 30.06.2006
Robert Bosch GmbH, Power Tools Division
D-70145 Leinfelden-Echterdingen
Demolition Hammer GSH 16-28
GSH 16-30
Article number 3 611 C35 0.. 3 611 C35 1..
Rated power input W 1750 1750
Impact rate bpm 1300 1300
Impact energy per stroke J 45 45
Tool holder mm 28 30
Weight according to EPTA-Procedure
01/2003 kg 17.9 16.5
Protection class /II /II
The values given are valid for nominal voltages [U] of 230/240 V. For lower voltage and models for specific countries, these val-
ues can vary.
Please observe the article number on the type plate of your machine. The trade names of the individual machines may vary.
Starting cycles generate brief voltage drops. Interference with other equipment/machines may occur in case of unfavourable
mains system conditions. Malfunctions are not to be expected for system impedances below 0,25 ohm.
Dr. Egbert Schneider
Senior Vice President
Dr. Eckerhard Strötgen
Head of Product
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Carrying Handle
The carrying handle 3 can be turned to any position.
Loosen the knurled nut 4, turn the carrying handle 3
around the machine axis to the desired position and
tighten the knurled nut 4 again.
The carrying handle 3 can also be mounted facing to
the other side. Completely unscrew the knurled nut 4
and then pull out the hexagon bolt upward. Pull off the
carrying handle 3 to the side and tilt the remaining
clamping element by 180°. Mount the carrying handle
3 in reverse order.
Changing the Tool (GSH 16-28)
f Before any work on the machine itself, pull
the mains plug.
Clean the tool shank 7 and apply a light coat of grease.
Tools without Shoulder (see figures A–B)
Pivot the tool retainer 6 upward by approx. 150° and
insert the tool into the tool holder 8.
Pivot the tool retainer 6 down to lock the tool.
Check the latching by pulling the tool.
Tools with Shoulder (see figures C–D)
Tools with an insertion length of 152 mm (6") to the
shoulder can be used.
Pivot the tool retainer 6 upward by approx. 180° and
insert the tool into the tool holder 8.
Pivot the tool retainer 6 back to the tool to lock it. The
shoulder 9 must be held by the tool retainer 6.
Check the latching by pulling the tool.
Changing the Tool (GSH 16-30)
(see figures E–F)
f Before any work on the machine itself, pull
the mains plug.
Clean the tool shank 7 and apply a light coat of grease.
Pull out the lock bolt 5 and turn it 180° in anticlockwise
direction. Allow the lock bolt 5 to latch again.
Insert the tool into the tool holder 8 to the stop. The
groove of the tool shank 7 must face upward as shown
in the figure.
Pull out the lock bolt 5 and turn it 180° in clockwise
direction. Allow the lock bolt 5 to latch again.
Check the latching by pulling the tool.
Starting Operation
f Observe correct mains voltage! The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Power tools marked with 230 V can also be
operated with 220 V.
Switching On and Off
To start the machine, push the On/Off switch 2 to the
“I” position.
To switch off the machine, push the On/Off switch 2
to the “0” position.
For low temperatures, the machine reaches the full
impact rate only after a certain time.
This start-up time can be shortened by striking the
chisel in the machine against the floor one time.
Operating Instructions (see figure G)
While working, hold the power tool with both hands by
the handle 1. The handle 1 can move upward and
downward around its axis by approx. 30 mm. This has
a damping effect against vibrations.
For the highest possible impact damping, work only
with moderate pressure.
Sharpening Chisels
Good results are only achieved with sharp chisels;
therefore, sharpen the chiselling tools in good time.
This ensures a long service life of the tools and good
working performance.
Sharpen chiselling tools using grinding wheels (e. g.
ceramic bonded corundum wheel) with a steady supply
of water. Reference values are shown in the figure.
Take care that no annealing coloration appears on the
cutting edges; this impairs the hardness of the chisel-
ling tools.
For forging, heat the chisel to between 850 and
1050 °C (bright red to yellow).
For hardening, heat the chisel to approx. 900 °C and
quench in oil. Then anneal in an oven for approx. one
hour at 320 °C (annealing colour = light blue).
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Maintenance and Service
Maintenance and Cleaning
f Before any work on the machine itself, pull
the mains plug.
f For safe and proper working, always keep the
machine and ventilation slots clean.
When the carbon brushes wear below acceptable
service tolerances, the machine will automatically cut
out. The machine must be sent to customer service for
maintenance (for address, see the “Service and Cus-
tomer Assistance” section.
If the machine should fail despite the care taken in man-
ufacturing and testing procedures, repair should be
carried out by an after-sales service centre for Bosch
power tools.
In all correspondence and spare parts order, please
always include the 10-digit article number given on the
type plate of the machine.
WARNING! Important instructions for connecting
a new 3-pin plug to the 2-wire cable.
The wires in the cable are coloured according to the fol-
lowing code:
Do not connect the blue or brown wire to the earth ter-
minal of the plug.
Important: If for any reason the moulded plug is
removed from the cable of this power tool, it must be
disposed of safely.
Service and Customer Assistance
Exploded views and information on spare parts can be
found under:
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Middlesex UB 9 5HJ
✆ Service:. . . . . . . . . . . . . . . +44 (0) 18 95 / 83 87 82
✆ Advice line:. . . . . . . . . . . . +44 (0) 18 95 / 83 87 91
Fax: . . . . . . . . . . . . . . . . . . . . +44 (0) 18 95 / 83 87 89
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
✆ Service:. . . . . . . . . . . . . . . . .+353 (0)1 / 4 66 67 00
Fax: . . . . . . . . . . . . . . . . . . . . . .+353 (0)1 / 4 66 68 88
Australia and New Zealand
Robert Bosch Australia Pty. Ltd.
1555 Centre Road
P.O. Box 66
3168 Clayton/Victoria
✆ . . . . . . . . . . . . . . . . . . . . . +61 (0)1 / 3 00 30 70 44
Fax: . . . . . . . . . . . . . . . . . . . . +61 (0)1 / 3 00 30 70 45
The machine, accessories and packaging should be
sorted for environmental-friendly recycling.
Only for EC countries:
Do not dispose of power tools into
household waste!
According the European Guideline
2002/96/EC for Waste Electrical and
Electronic Equipment and its implemen-
tation into national right, power tools
that are no longer usable must be collected separately
and disposed of in an environmentally correct manner.
Subject to change without notice. Page 16 Thursday, July 13, 2006 8:42 AM
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 δικαίωµα αλλαγών.
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28 mm
30 mm
2 605 438 628 Page 76 Thursday, July 13, 2006 8:42 AM

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