Bosch GDS 18 V-EC 250 manual

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  • Brand: Bosch
  • Product: Screw Machine
  • Model/name: GDS 18 V-EC 250
  • Filetype: PDF
  • Available languages: Dutch, English, German, French, Spanish, Italian, Swedish, Portuguese, Danish, Polish, Russian, Finnish, Romanian, Turkish, Slovak, Hungarian, Croatian, Ukrainian

Table of Contents

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1 609 92A 1CL | (6.5.15) Bosch Power Tools
GDS 18 V-EC 250
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Bosch Power Tools 1 609 92A 1CL | (6.5.15)
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. Unmodified plugs and
matching outlets will reduce risk of electric shock.
 Avoidbodycontactwithearthedorgroundedsurfaces,
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.
 Do not abuse the cord. Neveruse 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.
 When operating a power tool outdoors, use an exten-
sioncord suitablefor outdooruse. Use ofa cord suitable
for outdoor use reduces the risk of electric shock.
 If operating a power tool in a damp location is unavoid-
able, use a residual current device (RCD) protected
supply. Use of an RCD reduces the risk of electric shock.
Personal safety
 Stay alert, watch what you are doing and use common
sensewhenoperatinga power tool.Do notuse apower
alcohol or medication. A moment of inattention while op-
erating power tools may result in serious personal injury.
 Use personal protective equipment. Always wear eye
protection. Protective equipment such as dust mask,
for appropriate conditions will reduce personal injuries.
 Prevent unintentional starting. Ensure the switch is in
the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or en-
ergising power tools that have the switch on invites acci-
 Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to a ro-
tating part of the power tool may result in personal injury.
 Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool in
unexpected situations.
 Dress properly. Do not wear loose clothing or jewel-
lery. Keep your hair, clothing and gloves away from
moving parts.Loose clothes, jewellery or long hair can be
caught in moving parts.
 If devices are provided for the connection of dust ex-
traction and collection facilities, ensure these are con-
nected and properly used. Use of dust collection can re-
duce dust-related hazards.
Power tool use and care
 Donotforcethepowertool.Usethecorrectpowertool
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 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. 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 bind-
ing of moving parts, breakage of parts and any other
conditionthat may affectthe power tool’s operation. If
damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power
 Keepcuttingtoolssharpandclean.Properly maintained
and are easier to control.
 Use the power tool, accessories and tool bits etc. in ac-
cordance 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.
Battery tool use and care
 Recharge only with the charger specified by the manu-
facturer. A charger that is suitable for one type of battery
pack may create a risk of fire when used with another bat-
tery pack.
 Use power tools only with specifically designated bat-
tery packs. Use of any other battery packs may create a
risk of injury and fire.
 When battery pack is not in use, keep it away from oth-
er metal objects, like paper clips, coins, keys, nails,
screws or other small metal objects, that can make a
connection from one terminal to another. Shorting the
battery terminals together may cause burns or a fire.
 Under abusive conditions, liquid may be ejected from
the battery; avoid contact. If contact accidentally oc-
curs, flush with water. If liquid contacts eyes, addition-
ally seek medical help. Liquid ejected from the battery
may cause irritation or burns.
 Haveyourpowertoolservicedbyaqualifiedrepairper-
son using only identical replacement parts. This will en-
sure that the safety of the power tool is maintained. Page 11 Wednesday, May 6, 2015 2:21 PM
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1 609 92A 1CL | (6.5.15) Bosch Power Tools
Safety Warnings for Screwdriver
 Hold power tool by insulated gripping surfaces, when
performing an operation where the fastener may con-
make exposed metal parts of the power tool “live” and
could give the operator an electric shock.
 Use auxiliary handle(s), if supplied with the tool. Loss
of control can cause personal injury.
 Hold the machine with a firm grip. High reaction torque
can briefly occur while driving in and loosening screws.
 Secure the workpiece. A workpiece clamped with clamp-
ing devices or in a vice is held more secure than by hand.
 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.
 Do not open the battery. Danger of short-circuiting.
Protect the battery against heat, e. g., against
continuous intense sunlight, fire, water, and
moisture. Danger of explosion.
 In case of damage and improper use of the battery, va-
pours may be emitted. Ventilate the area and seek
medical help in case of complaints. The vapours can irri-
tate the respiratory system.
 Use the battery only in conjunction with your Bosch
power tool. This measure alone protects the battery
against dangerous overload.
 Thebatterycanbedamagedbypointedobjectssuchas
nails or screwdrivers or by force applied externally. An
internal short circuit can occur and the battery can burn,
smoke, explode or overheat.
Product Description and Specifica-
Read all safety warnings and all instruc-
tions. Failure to follow the warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Intended Use
The machine is intended for driving in and loosening screws
and bolts as well as for tightening and loosening nuts within
the respective range of dimension.
tool’s direct area of working operation and is not suitable for
household room illumination.
Product Features
The numbering of the product features refers to the illustra-
tion of the machine on the graphics page.
1 Tool holder
2 Carrying strap
3 Belt clip*
4 Battery pack*
5 Battery unlocking button*
6 Rotational direction switch
7 On/Off switch
8 “PowerLight”
9 Handle (insulated gripping surface)
10 Application tool (e. g. an impact socket)
*Accessories shown or described are not part of the standard
can be found in our accessories program.
Technical Data
Noise/Vibration Information
Sound emission values determined according to
EN 60745-2-2.
Typically the A-weighted noise levels of the product are:
Sound pressure level 100 dB(A); Sound power level
111 dB(A). Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values ah (triax vector sum) and uncertainty K
determined according to EN 60745-2-2:
tool: ah=18 m/s2
, K=1,5 m/s2
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
Cordless Impact Screwdriver GDS 18 V-EC 250
Article number 3 601 JD8 1..
Rated voltage V= 18
No-load speed min-1
0 –2 400
Impact rate min-1
0 –3 400
Maximum torque, hard
screwdriving application
according to ISO 5393 Nm 250
Bolt size mm M10 – M18
Tool holder  ½"
Weight according to
EPTA-Procedure 01/2003 kg 2.0
Permitted ambient temperature
– during charging
– during operation*
and during
0... +45
-20... +50
Recommended batteries
GBA 18V..
GBA 18V...W
Recommended chargers
AL 18..
GAL 3680
GAL 18...W**
* Limited performance at temperatures <0 °C
only for wireless charging batteries Page 12 Wednesday, May 6, 2015 2:21 PM
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Bosch Power Tools 1 609 92A 1CL | (6.5.15)
An estimation of thelevelofexposure tovibrationshouldalso
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total working
Identify additional safety measures to protect the operator
accessories, keep the hands warm, organisation of work pat-
Declaration of Conformity
We declare under our sole responsibility that the product de-
scribed under “Technical Data” is in conformity with all rele-
vant provisions of the directives 2009/125/EC (Regulation
1194/2012), 2011/65/EU, until 19 April 2016:
2004/108/EC, from 20 April 2016 on: 2014/30/EU,
2006/42/EC including their amendments and complies with
the following standards: EN 60745-1, EN 60745-2-2.
Technical file (2006/42/EC) at:
Robert Bosch GmbH, PT/ETM9,
70764 Leinfelden-Echterdingen, GERMANY
Robert Bosch GmbH, Power Tools Division
70764 Leinfelden-Echterdingen
Battery Charging
Note: The battery supplied is partially charged. To ensure full
capacity of the battery, completely charge the battery in the
The lithium-ion battery can be charged at any time without re-
ducing its service life. Interrupting the charging procedure
does not damage the battery.
The lithium-ion battery is protected against deep discharging
by the “ElectronicCell Protection(ECP)”.Whenthe battery is
empty, the machine is switched off by means of a protective
circuit: The inserted tool no longer rotates.
 Do not continue to press the On/Off switch after the
machine has been automatically switched off. The bat-
tery can be damaged.
Observe the notes for disposal.
Removing the battery
The battery 4 is equipped with two locking levels that should
prevent the battery from falling out when pushing the battery
unlocking button 5 unintentionally. As long as the battery is
inserted in the power tool, it is held in position by means of a
To remove the battery 4, press the unlocking button 5 and
pull out the battery toward the front. Do not exert any force.
Changing the Tool (see figure A)
 Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
 Regularly clean the power tool’s air vents. The motor’s
fan will draw the dust inside the housing and excessive ac-
cumulation of powdered metal may cause electrical haz-
 When working with an application tool, pay attention
that the application tool is connected securely on the
tool holder. When the application tool is not securely con-
nected with the tool holder, it can come off during applica-
Slide the application tool 10 onto the square drive of the tool
holder 1.
With this system, there will be a slight amount of play around
the application tool 10 after connecting securely to the tool
holder 1; this has no influence on the function/safety.
Method of Operation
The tool holder 1 with the tool is driven by an electric motor
via a gear and impact mechanism.
The working procedure is divided into two phases:
Screwing in and tightening (impact mechanism in action).
The impact mechanism is activated as soon as the screwed
instance, the impact mechanism converts the power of the
motor to steady rotary impacts. When loosening screws or
nuts, the process is reversed.
Starting Operation
To save energy, only switch the power tool on when using it.
Inserting the battery
Set the rotational direction switch 6 to the centre position to
protect the power tool against accidental starting.
power tool until the battery is securely locked.
Henk Becker
Executive Vice President
Helmut Heinzelmann
Head of Product Certification
PT/ETM9 Page 13 Wednesday, May 6, 2015 2:21 PM
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1 609 92A 1CL | (6.5.15) Bosch Power Tools
Reversing the rotational direction (see figure B)
The rotational direction switch 6 is used to reverse the rota-
tional direction of the machine. However, this is not possible
with the On/Off switch 7 actuated.
Right rotation: For driving in screws and tightening nuts,
press the rotational direction switch 6 through to the left
Left rotation: For loosening and unscrewing screws and
nuts, press the rotational direction switch 6 through to the
right stop.
Switching On and Off
To start the machine, press the On/Off switch 7 and keep it
To switch off the machine, release the On/Off switch 7.
Adjusting the Speed
The speed of the switched-on power tool can be variably ad-
justed, depending on how far the On/Off switch 7 is pressed.
in speed.
Working Advice
 Apply the power tool to the screw/nut only when it is
switched off. Rotating tool inserts can slip off.
The torque depends on the impact duration. The maximum
achieved torque results from the sum of all individual torques
achieved through impact. The maximum torque is achieved
after an impact duration of 6–10 seconds. After this dura-
tion, the tightening torque is increased only minimally.
The impact duration is to be determined for each required
tightening torque. The actually achieved tightening torque is
always to be checked with a torque wrench.
Screw Applications with Hard, Spring-loaded or Soft Seat
A test in which the achieved torques in an impact series are
of a torque characteristic. The height of the curve corre-
sponds with the maximum reachable torque, and the steep-
ness indicates the duration in which this is achieved.
A torque gradient depends on the following factors:
– Strength properties of the screws/nuts
– Type of backing (washer, disc spring, seal)
– Strength properties of the material being screwed/bolted
– Lubrication conditions at the screw/bolt connection
The following application cases result accordingly:
– A hard seat is given for metal-to-metal screw applications
with the use of washers. After a relatively short impact du-
ration, the maximum torque is reached (steep characteris-
tic curve). Unnecessary long impact duration only causes
damage to the machine.
– A spring-loaded seat is given for metal-to-metal screw ap-
plications, however with the use of spring washers, disc
springs, studs or screws/nuts with conical seat as well as
when using extensions.
– A soft seat is given for screw applications, e. g., metal on
For a spring-loaded seat as well as for a soft seat, the maxi-
mum tightening torque is lower than for a hard seat. Also, a
clearly longer impact duration is required.
Reference Values for Maximum Screw/Bolt Tightening Torques
Calculatedfromthetensionalcross-section;utilizationoftheyieldpoint90 %(withfrictioncoefficientμtotal = 0.12).Asacontrol
measure, always check the tightening torque with a torque wrench.
advisable to predrill a pilot hole with the core diameter of the
thread to approx. 2
/3 of the screw length.
Note: Pay attention that no metal particles enter the power
Belt Clip
With the belt clip 3, the machine can be hung onto a belt. The
user has both hands free and the machine is always at hand.
Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Store the battery only within a temperature range between
–20 °Cand50 °C. As anexample,donotleave thebattery in
the car in summer.
Property Classes
according to DIN 267
Standard Screws/Bolts
3.6 4.6 5.6 5.8 6.8 8.8 10.9 12.9
M 6 2.71 3.61 4.52 6.02 7.22 9.7 13.6 16.2
M 8 6.57 8.7 11 14.6 17.5 23 33 39
M 10 13 17.5 22 29 35 47 65 78
M 12 22.6 30 37.6 50 60 80 113 135
M 14 36 48 60 79 95 130 180 215
M 16 55 73 92 122 147 196 275 330
M 18 81 110 135 180 215 290 405 485
M 20 115 155 190 255 305 410 580 690 Page 14 Wednesday, May 6, 2015 2:21 PM
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Bosch Power Tools 1 609 92A 1CL | (6.5.15)
clean and dry brush.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.
Maintenance and Service
Maintenance and Cleaning
 Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
 For safe and proper working, always keep the machine
and ventilation slots clean.
After-sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
Bosch’sapplicationserviceteam willgladlyanswerquestions
concerning our products and their accessories.
clude the 10-digit article number given on the type plate of
the machine.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
UB 9 5HJ
At you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
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: (01300) 307044
Fax: (01300) 307045
Inside New Zealand:
Phone: (0800) 543353
Fax: (0800) 428570
Outside AU and NZ:
Phone: +61 3 95415555
Republic of South Africa
Customer service
Hotline: (011) 6519600
Gauteng – BSC Service Centre
35 Roper Street, New Centre
Tel.: (011) 4939375
Fax: (011) 4930126
KZN – BSC Service Centre
Unit E, Almar Centre
143 Crompton Street
Tel.: (031) 7012120
Fax: (031) 7012446
Western Cape – BSC Service Centre
Democracy Way, Prosperity Park
Tel.: (021) 5512577
Fax: (021) 5513223
Bosch Headquarters
Midrand, Gauteng
Tel.: (011) 6519600
Fax: (011) 6519880
The contained lithium-ion batteries are subject to the Danger-
ous Goods Legislation requirements. The user can transport
the batteries by road without further requirements.
forwarding agency), special requirements on packaging and
labelling must be observed. For preparation of the item being
shipped, consulting an expert for hazardous material is re-
Dispatch batteries only when the housing is undamaged.
Tape or mask off open contacts and pack up the battery in
such a manner that it cannot move around in the packaging.
Please also observe possibly more detailed national regula-
tions. Page 15 Wednesday, May 6, 2015 2:21 PM
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1 609 92A 1CL | (6.5.15) Bosch Power Tools
180 |
AL 1860 CV
(14,4 / 18 V)
GBA 18 V..
GBA 18 V... W Page 180 Wednesday, May 6, 2015 2:28 PM

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