Starting Operation; Working Advice; Maintenance And Service; Maintenance And Cleaning - Bosch GKS 18 V-LI Professional Originalbetriebsanleitung

OBJ_BUCH-755-004.book Page 19 Tuesday, January 15, 2013 3:25 PM

Starting Operation

Inserting the battery
 Use only original Bosch lithium ion batteries with the
voltage listed on the nameplate of your power tool.
Using other batteries can lead to injuries and pose a fire
hazard.
Insert the charged battery 3 from the front into the base of
the power tool. Push the battery completely into the base un-
til the red stripe can no longer be seen and the battery is se-
curely locked.
Switching On and Off
To start the machine, first push the lock-off button for the
On/Off switch 1 and then press the On/Off switch 2 and keep
it pressed.
To switch off the machine, release the On/Off switch 2.
Note: For safety reasons, the On/Off switch 2 cannot be
locked; it must remain pressed during the entire operation.
To save energy, only switch the power tool on when using it.
Run-on Brake
An integrated run-on brake reduces the run-on period of the
saw blade after switching off the machine.
Protection Against Deep Discharging
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.

Working Advice

Protect saw blades against impact and shock.
Guide the machine evenly and with light feed in the cutting
direction. Excessive feed significantly reduces the service life
of the saw blade and can cause damage to the power tool.
Sawing performance and cutting quality depend essentially
on the condition and the tooth form of the saw blade. There-
fore, use only sharp saw blades that are suited for the material
to be worked.
Sawing Wood
The correct selection of the saw blade depends on the type
and quality of the wood and whether lengthway or crossway
cuts are required.
When cutting spruce lengthways, long spiral chips are
formed.
Beech and oak dusts are especially detrimental to health.
Therefore, work only with dust extraction.
Sawing with Parallel Guide (see figure D)
The parallel guide 8 enables exact cuts along a workpiece
edge and cutting strips of the same dimension.
Sawing with Auxiliary Guide (see figure E)
For sawing large workpieces or straight edges, a board or
strip can clamped to the workpiece as an auxiliary guide; the
base plate of the circular saw can be guided alongside the aux-
iliary guide.
Bosch Power Tools
Sawing with Guide Rail (see figure G)
The guide rail 33 is used to carry out straight cuts.
Note: Use the guide rail 33 only for right-angled cuts. When
using for mitre cuts, the guide rail 33 can become damaged.
The adhesive coating prevents the guide rail from slipping and
protects the surface of the workpiece. The coating of the
guide rail allows the circular saw to glide easily.
Place the circular saw directly onto the guide rail 33. Fasten
the guide rail 33 with suitable clamping devices, e.g., screw
clamps, on the workpiece in such a manner that the narrow
leg of the guide rail 33 faces toward the saw blade.
The guide rail 33 must not extend beyond the face side of
the workpiece where the cut is to be started.
Switch the machine on and guide it in the cutting direction ap-
plying moderate and steady feed.
Two guide rails can be connected to one with use of the con-
nection piece 34. Clamping is carried out with the four screws
located in the connection piece.
Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Store the battery only within a temperature range between
0 °C and 50 °C. As an example, do not leave the battery in the
car in summer.
Occasionally clean the venting slots of the battery using a soft,
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.
The retracting blade guard must always be able to move freely
and retract automatically. Therefore, always keep the area
around the retracting blade guard clean. Remove dust and
chips by blowing out with compressed air or with a brush.
Saw blades that are not coated can be protected against cor-
rosion with a thin coat of acid-free oil. Before use, the oil must
be removed again, otherwise the wood will become soiled.
Resin and glue residue on the saw blade produces poor cuts.
Therefore, clean the saw blade immediately after use.
If the machine should fail despite the care taken in manufac-
turing 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 in-
clude the 10-digit article number given on the type plate of
the machine.
English | 19
1 609 92A 019 | (15.1.13)