such as pipes, radiators, ranges and refrigerators

14 | English 
1 609 92A 1SX | (25.11.15)
Bosch Power Tools
 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.
Service
 Have your power tool serviced by a qualified repair 
person using only identical replacement parts. This will 
ensure that the safety of the power tool is maintained.
Safety Warnings for Jigsaws
 Hold power tool by insulated gripping surfaces, when 
performing an operation where the cutting accessory 
may contact hidden wiring. Cutting accessory contacting 
a “live” wire may make exposed metal parts of the power 
tool “live” and could give the operator an electric shock.
 Keep hands away from the sawing range. Do not reach 
under the workpiece. Contact with the saw blade can 
lead to injuries.
 Apply the machine to the workpiece only when switched 
on. Otherwise there is danger of kickback when the cutting 
tool jams in the workpiece.
 Pay attention that the base plate 7 rests securely on 
the material while sawing. A jammed saw blade can 
break or lead to kickback.
 When the cut is completed, switch off the machine and 
then pull the saw blade out of the cut only after it has 
come to a standstill. In this manner you can avoid kick-
back and can place down the machine securely.
 Use only undamaged saw blades that are in perfect con-
dition. Bent or dull saw blades can break, negatively influ-
ence the cut, or lead to kickback.
 Do not brake the saw blade to a stop by applying side 
pressure after switching off. The saw blade can be dam-
aged, break or cause kickback.
 Use appropriate detectors to determine if utility lines 
are hidden in the work area or call the local utility com-
pany for assistance. Contact with electric lines can lead 
to fire and electric shock. Damaging a gas line can lead to 
explosion. Penetrating a water line causes property dam-
age.
 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.
 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.
 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, 
vapours 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.
 The battery pack can be damaged by pointed objects 
such as nails or screwdrivers or by force applied exter-
nally. An internal short circuit can occur and the battery 
pack can burn, smoke, explode or overheat.
Product Description and 
Specifications
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.
While reading the operating instructions, unfold the graphics 
page for the machine and leave it open.
Intended Use
The machine is intended for making separating cuts and cut-
outs in wood, plastic, metal, ceramic plates and rubber while 
resting firmly on the workpiece.
GST 18 V-LI S: The machine is suitable for straight and curved 
cuts.
GST 18 V-LI B: The machine is suitable for straight and 
curved cuts with mitre angles of up to 45°.
The saw blade recommendations are to be observed.
The light of this power tool is intended to illuminate the power 
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 Lock-off button for On/Off switch
2 On/Off switch
3 Battery pack*
4 Battery unlocking button
5 Hex key (only GST 18 V-LI B)
6 Plastic guide plate
7 Base plate
8 Adjusting lever for orbital action
9 Guide roller
10 Saw blade*
OBJ_BUCH-2148-003.book  Page 14  Wednesday, November 25, 2015  11:15 AM

 English | 15
Bosch Power Tools
1 609 92A 1SX | (25.11.15)
11 SDS clamping lever for saw blade release
12 “PowerLight”
13 Contact protector
14 Handle (insulated gripping surface)
15 “PowerLight” button
16 Thumbwheel for stroke rate preselection
17 Button for charge-control indicator*
18 Battery charge-control indicator*
19 Stroke rod
20 Vacuum connection*
21 Vacuum hose*
22 Splinter guard
23 Steel sliding shoe*
24 Screw
25 Scale for mitre angle (only GST 18 V-LI B)
*Accessories shown or described are not part of the standard de-
livery scope of the product. A complete overview of accessories 
can be found in our accessories program.
Technical Data
Noise/Vibration Information
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 another. 
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 
applications, with different accessories or insertion tools or is 
poorly maintained, the vibration emission may differ. This may 
significantly increase the exposure level over the total working 
period.
An estimation of the level of exposure to vibration should also 
take into account the times when the tool is switched off or 
when it is running but not actually doing the job. This may signif-
icantly reduce the exposure level over the total 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 pat-
terns.
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 60745-2-11, 
EN 50581.
Technical file (2006/42/EC) at:
Robert Bosch GmbH, PT/ETM9,
70764 Leinfelden-Echterdingen, GERMANY
Cordless Jigsaw
GST 18 V-LI S GST 18 V-LI B
Article number
3 601 EA5 1.. 3 601 EA6 1..
Rated voltage
V=
18
18
Stroke rate at no 
load n
0
min
-1
550–2700
0–2700
Stroke
mm
23
23
Cutting capacity, max.
– in wood
– in  aluminium
– in non-alloy steel
mm
mm
mm
120
20
8
120
20
8
Bevel cuts (left/right), 
max.
°
–
45
Weight according to 
EPTA-Procedure 
01:2014
1)
– minimum
– maximum
kg
kg
2.1
2.6
2.1
2.6
Permitted ambient 
temperature
– during  charging
– during operation
2)
 
and during storage
°C
°C
0...+45
–20...+50
0...+45
–20...+50
Recommended 
batteries
GBA 18V...
GBA 18V... W
GBA 18V...
GBA 18V... W
Recommended 
chargers
AL 18 ...
GAL 3680
GAL 18...W
AL 18 ...
GAL 3680
GAL 18...W
1) depending on the battery pack being used
2) Limited performance at temperatures <0 °C
GST 18 V-LI S
GST 18 V-LI B
Sound emission values determined 
according to EN 60745-2-11.
Typically the A-weighted noise levels 
of the product are
Sound pressure level
Sound power level
Uncertainty K
Wear hearing protection!
dB(A)
dB(A)
dB
79
90
3
81
92
3
Vibration total values a
h
 (triax vector 
sum) and uncertainty K determined 
according to EN 60745-2-11: 
Sawing chipboard:
a
h
K
Sawing sheet metal:
a
h
K
m/s
2
m/s
2
m/s
2
m/s
2
7.5
1.5
8
1.5
6
1.5
8.5
1.5
OBJ_BUCH-2148-003.book  Page 15  Wednesday, November 25, 2015  11:15 AM

16 | English 
1 609 92A 1SX | (25.11.15)
Bosch Power Tools
Robert Bosch GmbH, Power Tools Division
70764 Leinfelden-Echterdingen, GERMANY
Leinfelden, 19.11.2015
Assembly
 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.
Battery Charging
 Use only the chargers listed in the technical data. Only 
these chargers are matched to the lithium-ion battery of 
your power tool.
Note: The battery supplied is partially charged. To ensure full 
capacity of the battery, completely charge the battery in the 
battery charger before using your power tool for the first time.
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 “Electronic Cell Protection (ECP)”. When the 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 3 is equipped with two locking levels that should 
prevent the battery from falling out when pushing the battery 
unlocking button 4 unintentionally. As long as the battery is 
inserted in the power tool, it is held in position by means of a 
spring.
To remove the battery 3, press the battery unlocking button 4 
and pull the battery toward the rear out of the power tool. Do 
not exert any force when doing this.
Battery Charge-control Indication (see figure A)
The three green LEDs of the battery charge-control indicator 
18 indicate the charge condition of the battery 3. For safety 
reasons, it is only possible to check the status of the charge 
condition when the machine is at a standstill.
Press button 17 to indicate the charge condition. This is also 
possible when the battery 3 is removed.
When no LED lights up after pushing button 17, then the bat-
tery is defective and must be replaced.
Replacing/Inserting the Saw Blade
 When mounting the saw blade, wear protective gloves. 
Danger of injury when touching the saw blade.
Selecting a Saw Blade
An overview of recommended saw blades can be found at 
the end of these instructions. Use only T-shank saw blades. 
The saw blade should not be longer than required for the 
intended cut.
Use a thin saw blade for narrow curve cuts.
Inserting the Saw Blade (see figure B)
 Clean the shank of the saw blade before inserting it. 
An unclean shank cannot be fastened securely.
Insert the saw blade 10 into the stroke rod 19 until it latches. 
The SDS lever 11 automatically snaps to the rear and the saw 
blade is locked. Do not manually press the lever 11 toward 
the rear, otherwise you could damage the machine.
While inserting the saw blade, pay attention that the back of 
the saw blade is positioned in the groove of the guide roller 9.
 Check the tight seating of the saw blade. A loose saw 
blade can fall out and lead to injuries.
Ejecting the Saw Blade (see figure C)
 When ejecting the saw blade, hold the machine in such 
a manner that no persons or animals can be injured by 
the ejected saw blade.
Turn the SDS lever 11 all the way forward in the direction in-
dicated by the arrow. The saw blade is released and ejected.
Dust/Chip Extraction
 Dust from materials such as lead-containing coatings, 
some wood types, minerals and metal can be harmful to 
one’s health. Touching or breathing-in the dust can cause 
allergic reactions and/or lead to respiratory infections of 
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment 
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable 
for the material.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the 
materials to be worked.
 Prevent dust accumulation at the workplace. Dust can 
easily ignite.
Henk Becker
Executive Vice President
Engineering
Helmut Heinzelmann
Head of Product Certification
PT/ETM9
LED
Capacity
Continuous lighting 3 x green
2/3
Continuous lighting 2 x green
1/3
Continuous lighting 1 x green
1/3
Flashing light 1 x green
Reserve
OBJ_BUCH-2148-003.book  Page 16  Wednesday, November 25, 2015  11:15 AM

 English | 17
Bosch Power Tools
1 609 92A 1SX | (25.11.15)
Connecting the Dust Extraction (see figures D–E)
Insert the vacuum connection 20 into the opening of base 
plate 7.
Place a vacuum hose 21 (accessory) onto the vacuum con-
nection 20. Connect the vacuum hose 21 with a vacuum 
cleaner (accessory). An overview for the connection of vari-
ous vacuum cleaners can be found at the end of these instruc-
tions.
To enable optimum dust extraction, use the splinter guard 22 
if possible.
The vacuum cleaner must be suitable for the material being 
worked.
When vacuuming dry dust that is especially detrimental to 
health or carcinogenic, use a special vacuum cleaner.
Splinter Guard (see figure F)
The splinter guard 22 can prevent fraying of the surface while 
sawing wood. The splinter guard can only be used with certain 
saw blade types, and only at a cutting angle of 0°. When saw-
ing with the splinter guard, the base plate 7 may not be offset 
to the rear for sawing close to edges.
Insert the splinter guard 22 into base plate 7 from the front.
Sliding Shoe (see figure G)
The plastic guide plate 6 of base plate 7 reduces sensitive sur-
faces from being scratched up. When cutting metal, use the 
steel sliding shoe 23.
To mount the steel sliding shoe 23, slide it onto base plate 7 
from the front.
Operation
Operating Modes
Orbital Action Settings
The four orbital action settings allow for optimal adaptation 
of cutting speed, cutting capacity and cutting pattern to the 
material being sawed.
The orbital action can be adjusted with the adjusting lever 8, 
even during operation.
The optimal orbital action setting for the respective applica-
tion can be determined through practical testing. The follow-
ing recommendations apply:
– Select a lower orbital action setting (or switch it off) for a 
finer and cleaner cutting edge.
– For thin materials such as sheet metal, switch the orbital 
action off.
– For hard materials such as steel, work with low orbital 
action.
– For soft materials and when sawing in the direction of the 
grain, work with maximum orbital action.
Adjusting the Cutting Angle (see figure H) 
(only GST 18 V-LI B)
The base plate 7 can be swivelled by 45° to the left or right for 
mitre cuts.
Remove the vacuum connection 20.
Loosen screw 24 with hex key 5 and slide the base plate 7 in 
toward the battery 3 to the stop.
For adjustment of precise mitre angles, the base plate has ad-
justment notches on the left and right at 0° and 45°. Swivel 
the base plate 7 to the desired position according to the scale 

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