Bosch GDA 280 E manual

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  • Brand: Bosch
  • Product: Sanders
  • Model/name: GDA 280 E
  • Filetype: PDF
  • Available languages: Dutch, English, German, Italian, Swedish, Russian, French, Spanish, Portuguese, Danish, Polish, Norwegian, Finnish, Czech, Romanian, Turkish, Slovak, Greek, Hungarian, Slovene, Croatian, Ukrainian

Table of Contents

Page: 1
3 |
1 609 929 N92 | (12.11.08) Bosch Power Tools
2 605 438 414
2 601 099 044
2 608 000 211 2 608 000 200 2 608 000 198 2 608 000 199
2 601 099 074
2 608 604 496
2 608 613 016
P 100:
2 608 604 494
P 280:
2 608 604 495
GAS 25
GAS 50
GAS 50 M
GAS 25
GAS 50
GAS 50 M
Ø 19 mm
3 m 2 607 002 161
5 m 2 607 002 162
1 609 200 933
Ø 19 mm
3 m 2 600 793 009
5 m 1 610 793 002 Page 3 Wednesday, November 12, 2008 3:21 PM
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1 609 929 N92 | (12.11.08) Bosch Power Tools
GDA 280 E
Professional Page 4 Wednesday, November 12, 2008 3:21 PM
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1 609 929 N92 | (12.11.08) Bosch Power Tools
6 5
9 Page 5 Wednesday, November 12, 2008 3:21 PM
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1 609 929 N92 | (12.11.08) Bosch Power Tools
Safety Notes
General Power Tool Safety Warnings
Read all safety warnings and all
instructions. Failure to follow
the warnings and instructions may result in elec-
tric shock, fire and/or serious injury.
Save all warnings and instructions for future
The term “power tool” in the warnings refers to
your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
1) Work area safety
a) Keep work area clean and well lit. Clut-
tered 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 fumes.
c) Keep children and bystanders away
while operating a power tool. Distrac-
tions 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 shock.
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 shock.
e) When operating a power tool outdoors,
use an extension cord suitable for out-
door use. Use of a cord suitable for out-
door use reduces the risk of electric
f) If operating a power tool in a damp loca-
tion is unavoidable, use a residual cur-
rent device (RCD) protected supply. Use
of an RCD reduces the risk of electric
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 influ-
ence of drugs, alcohol or medication. A
moment of inattention while operating
power tools may result in serious person-
al injury.
b) Use personal protective equipment. Al-
ways wear eye protection. Protective
equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing protec-
tion used for appropriate conditions will
reduce personal injuries.
c) Prevent unintentional starting. Ensure
the switch is in the off-position before
connecting to power source and/or bat-
tery pack, picking up or carrying the
tool. Carrying power tools with your fin-
ger on the switch or energising power
tools that have the switch on invites acci-
d) Remove any adjusting key or wrench be-
fore turning the power tool on. A wrench
or a key left attached to a rotating part of
the power tool may result in personal inju-
e) Do not overreach. Keep proper footing
and balance at all times. This enables
better control of the power tool in unex-
pected situations.
f) Dress properly. Do not wear loose cloth-
ing or jewellery. Keep your hair, clothing
and gloves away from moving parts.
Loose clothes, jewellery or long hair can
be caught in moving parts.
WARNING Page 14 Wednesday, November 12, 2008 3:21 PM
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Bosch Power Tools 1 609 929 N92 | (12.11.08)
g) If devices are provided for the connec-
tion of dust extraction and collection fa-
cilities, 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 de-
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 dangerous and must be re-
c) Disconnect the plug from the power
source and/or the battery pack from the
power tool before making any adjust-
ments, changing accessories, or storing
power tools. Such preventive safety
measures reduce the risk of starting the
power tool accidentally.
d) Store idle power tools out of the reach of
children and do not allow persons unfa-
miliar with the power tool or these in-
structions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
e) Maintain power tools. Check for mis-
alignment or binding of moving parts,
breakage of parts and any other condi-
tion that may affect the power tool’s op-
eration. If damaged, have the power tool
repaired before use. Many accidents are
caused by poorly maintained 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 control.
g) Use the power tool, accessories and tool
bits etc. in accordance with these in-
structions, taking into account the work-
ing conditions and the work to be per-
formed. Use of the power tool for
operations different from those intended
could result in a hazardous situation.
5) Service
a) Have your power tool serviced by a qual-
ified repair person using only identical
replacement parts. This will ensure that
the safety of the power tool is maintained.
Safety Warnings for Sander
f Use the machine only for dry sanding. Pen-
etration of water into the machine increases
the risk of an electric shock.
f Caution, fire hazard! Avoid overheating the
object being sanded as well as the sander.
Always empty the dust collector before tak-
ing breaks. In unfavourable conditions, e. g.,
when sparks emit from sanding metals, sand-
ing debris in the dust bag, micro filter or pa-
per sack (or in the filter sack or filter of the
vacuum cleaner) can self-ignite. Particularly
when mixed with remainders of varnish, poly-
urethane or other chemical materials and
when the sanding debris is hot after long pe-
riods of working.
f Secure the workpiece. A workpiece clamped
with clamping devices or in a vice is held
more secure than by hand.
f Keep your workplace clean. Blends of mate-
rials are particularly dangerous. Dust from
light alloys can burn or explode.
f Never use the machine with a damaged ca-
ble. Do not touch the damaged cable and
pull the mains plug when the cable is dam-
aged while working. Damaged cables in-
crease the risk of an electric shock. Page 15 Wednesday, November 12, 2008 3:21 PM
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1 609 929 N92 | (12.11.08) Bosch Power Tools
Functional Description
Read all safety warnings and all in-
structions. Failure to follow the
warnings and instructions may re-
sult in electric shock, fire and/or se-
rious injury.
While reading the operating instructions, unfold
the graphics page for the machine and leave it
Intended Use
The machine is intended for dry sanding and
polishing of wood, plastic, metal, filler, as well
as for painted surfaces. It is ist especially suita-
ble for profiles, corners or hard to reach loca-
Product Features
The numbering of the product features refers to
the illustration of the machine on the graphics
1 On/Off switch
2 Thumbwheel for orbit frequency preselec-
3 Extraction outlet
4 Sanding sheet*
5 Sanding plate
6 SDS button for release of the sanding plate
7 Vacuum hose*
8 Pad extender*
9 Sanding plate for extender*
10 Narrow pad extender*
11 Narrow rounded pad extender*
*Accessories shown or described are not part of the
standard delivery scope of the product. A complete
overview of accessories can be found in our acces-
sories program.
Technical Data
Noise/Vibration Information
Measured values determined according to
EN 60745.
Typically the A-weighted sound pressure level of
the product is 80 dB(A). Uncertainty K=3 dB.
The noise level when working can exceed
80 dB(A).
Wear hearing protection!
Vibration total values (triax vector sum) deter-
mined according to EN 60745:
Vibration emission value ah =4.5 m/s2
, Uncer-
tainty K =1.5 m/s2
The vibration emission level given in this infor-
mation sheet has been measured in accordance
with a standardised test given in EN 60745 and
may be used to compare one tool with another.
It may be used for a preliminary assessment of
The declared vibration emission level repre-
sents the main applications of the tool. However
if the tool is used for different applications, with
different accessories or poorly maintained, the
Delta Sander GDA 280 E
Article number 0 601 294 7..
Rated power input W 280
No-load speed min-1
6500 – 9500
No-load orbital stroke
rate min-1
13000 – 19000
Sanding plate size
(corner to corner) mm 94
Orbit diameter mm 2.0
Weight according to
01/2003 kg 1.1
Protection class /II
The values given are valid for nominal voltages [U] of
230/240 V. For lower voltage and models for specific
countries, these values can vary.
Please observe the article number on the type plate of
your machine. The trade names of the individual ma-
chines may vary. Page 16 Wednesday, November 12, 2008 3:21 PM
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Bosch Power Tools 1 609 929 N92 | (12.11.08)
vibration emission may differ. This may signifi-
cantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibra-
tion should also take into account the times
when the tool is switched off or when it is run-
ning but not actually doing the job. This may sig-
nificantly reduce the exposure level over the to-
tal working period.
Identify additional safety measures to protect
the operator from the effects of vibration such
as: maintain the tool and the accessories, keep
the hands warm, organisation of work patterns.
Declaration of Conformity
We declare under our sole responsibility that
the product described under “Technical Data” is
in conformity with the following standards or
standardization documents: EN 60745 accord-
ing to the provisions of the directives
2004/108/EC, 98/37/EC (until 28 Dec 2009),
2006/42/EC (from 29 Dec 2009).
Technical file at:
Robert Bosch GmbH, PT/ESC,
D-70745 Leinfelden-Echterdingen
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
f Before any work on the machine itself, pull
the mains plug.
Dust/Chip Extraction
f Dusts from materials such as lead-containing
coatings, some wood types, minerals and
metal can be harmful to one’s health. Touch-
ing or breathing-in the dusts can cause aller-
gic reactions and/or lead to respiratory infec-
tions of the user or bystanders.
Certain dusts, such as oak or beech dust, are
considered as carcinogenic, especially in
connection with wood-treatment additives
(chromate, wood preservative). Materials
containing asbestos may only be worked by
– Use dust extraction whenever possible.
– Provide for good ventilation of the work-
ing place.
– It is recommended to wear a P2 filter-
class respirator.
Observe the relevant regulations in your
country for the materials to be worked.
External Dust Extraction (see figure A)
Attach a vacuum hose 7 onto the outlet piece 3.
Connect the vacuum hose 7 with a vacuum
cleaner. An overview for connecting to various
vacuum cleaners can be found at the beginning
of these operating instructions.
The vacuum cleaner must be suitable for the ma-
terial being worked.
When vacuuming dry dust that is especially det-
rimental to health or carcinogenic, use a special
vacuum cleaner.
Replacing the Sanding Sheet
(see figure B)
When attaching a new sanding sheet, remove
any dust or debris from the sanding plate 5 (e. g.
with a brush).
To ensure optimum dust extraction, pay atten-
tion that the punched holes in the sanding sheet
match with the holes in the sanding plate.
The sanding plate 5 is fitted with Velcro backing
for quick and easy fastening of sanding sheets
with Velcro adhesion.
Before attaching the sanding sheet 4, free the
Velcro backing of the sanding plate 5 from any
debris by tapping against it in order to enable
optimum adhesion.
Position the sanding sheet 4 flush alongside one
edge of the sanding plate 5, then lay the sanding
sheet onto the sanding plate and press firmly.
Dr. Egbert Schneider
Senior Vice President
Dr. Eckerhard Strötgen
Head of Product
Certification Page 17 Wednesday, November 12, 2008 3:21 PM
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1 609 929 N92 | (12.11.08) Bosch Power Tools
To remove the sanding sheet 4, grasp it at one
of the tips and pull it off from the sanding plate
Sanding accessories, such as fleece pads/pol-
ishing cloth pads, are attached to the sanding
plate in the same manner.
Selecting the Sanding Sheet
Depending on the material to be worked and the
required rate of material removal, different
sanding sheets are available:
For reworking or polishing, especially of metal
and stone, use fleece/polishing cloth pad.
Depending on the desired surface quality of the
workpiece, different fleece types or polishing
cloth pads are to be used.
Replacing the Sanding Plate
(see figure C)
n Slide the SDS button for release of the sand-
ing plate 6 all the way to the right.
o Remove the sanding plate 5.
p Guide the sanding plate 5 from below
against the sanding plate holder and firmly
press them together.
q Slide the SDS button for release of the sand-
ing plate 6 all the way to the left.
If, e. g., the front tip of the sanding sheet is
worn, you can also remove the complete sand-
ing plate and reattach it turned by 120°.
Specialty Sanding Plates
You can replace the supplied sanding plate 5
with a specialty sanding plate, which is available
as an accessory.
The specialty sanding plate is attached in the
same manner as the one supplied.
Attach and remove the respective sanding
sheets in the same manner as when changing
original sanding sheets.
Pad Extender (see figure D)
With the pad extender 8 you can sand surfaces
that are difficult to access, such as sills on win-
dows, cabinets or doors.
Pad Extender, Narrow (see figure E)
With the narrow pad extender 10 you can sand
narrow openings, slots and passages.
Pad Extender, Narrow Rounded (see figure F)
The narrow rounded pad extender 11 allows you
to sand curved and hollow areas or surfaces that
are curved inward, such as on furniture, rails or
heating radiators.
Grain size
For the working of all
wooden materials
For coarse-sanding, e. g.
of rough, unplaned
beams and boards
coarse 40, 60
For face sanding and
planing small irregulari-
medium 80, 100,
For finish and fine sand-
ing of hard woods
fine 180, 240
For the working of
paint/enamel coats or
primers and fillers
For sanding off paint coarse 40, 60
For sanding primer medium 80, 100,
For final sanding of prim-
ers before coating
fine 180,
240, 320 Page 18 Wednesday, November 12, 2008 3:21 PM
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Bosch Power Tools 1 609 929 N92 | (12.11.08)
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 1
towards the front to “I”.
To switch off the machine, push the On/Off
switch 1 towards the rear to “0”.
Preselecting the Orbital Stroke Rate
With the thumbwheel for preselection of the or-
bital stroke rate 2, you can preselect the re-
quired orbital stroke rate, even during opera-
The required stroke rate depends on the materi-
al and the working conditions and can be deter-
mined through practical testing.
Working Advice
f Wait until the machine has come to a stand-
still before placing it down.
The removal capacity during sanding is mainly
determined by the selection of the sanding
sheet as well as the preselected orbital stroke
Only flawless sanding sheets achieve good
sanding capacity and extend the service life of
the machine.
Pay attention to apply uniform sanding pres-
sure; this increases the working life of the sand-
ing sheets.
Intensifiying the sanding pressure does not lead
to an increase of the sanding capacity, but to in-
creased wear of the machine and the sanding
For precise on-the-spot sanding of edges, cor-
ners and hard to reach areas, it is also possible
to work only with the tip or an edge of the sand-
ing plate.
A sanding sheet that has been used for metal
should not be used for other materials.
Use only original Bosch sanding accessories.
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.
If the machine should fail despite the care taken
in manufacturing 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 con-
necting a new 3-pin plug to the 2-wire cable.
The wires in the cable are coloured according to
the following code:
Do not connect the blue or brown wire to the
earth terminal 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. Page 19 Wednesday, November 12, 2008 3:21 PM
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1 609 929 N92 | (12.11.08) Bosch Power Tools
After-sales Service and Customer
Our after-sales service responds to your ques-
tions concerning maintenance and repair of your
product as well as spare parts. Exploded views
and information on spare parts can also be
found under:
Our customer consultants answer your ques-
tions concerning best buy, application and ad-
justment of products and accessories.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
UB 9 5HJ
Tel. Service: +44 (0844) 736 0109
Fax: +44 (0844) 736 0146
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: +353 (01) 4 66 67 00
Fax: +353 (01) 4 66 68 88
Australia, New Zealand and Pacific Islands
Robert Bosch Australia Pty. Ltd.
Power Tools
Locked Bag 66
Clayton South VIC 3169
Customer Contact Center
Inside Australia:
Phone: +61 (01300) 307 044
Fax: +61 (01300) 307 045
Inside New Zealand:
Phone: +64 (0800) 543 353
Fax: +64 (0800) 428 570
Outside AU and NZ:
Phone: +61 (03) 9541 5555
The machine, accessories and packaging should
be sorted for environmental-friendly recycling.
Only for EC countries:
Do not dispose of power tools in-
to household waste!
According the European Guideline
2002/96/EC for Waste Electrical
and Electronic Equipment and its
implementation 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 20 Wednesday, November 12, 2008 3:21 PM

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