Operating Modes; Starting Operation; Working Advice - Bosch GKS 160 Professional Manual Original

OBJ_BUCH-185-006.book Page 18 Thursday, June 9, 2016 10:28 AM
18 | English
 Do not connect a dust bag to the extraction adapter.
Otherwise the extraction system can become clogged.
To ensure optimum extraction, the extraction adapter 28
must be cleaned regularly.
External Dust Extraction
Connect the vacuum hose 32 to a vacuum cleaner (acces-
sory). An overview for connecting to various vacuum cleaners
can be found at the end of this manual.
The machine can be plugged directly into the receptacle of a
Bosch all-purpose vacuum cleaner with remote starting con-
trol. The vacuum cleaner starts automatically when the ma-
chine is switched on.
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.
Operation

Operating Modes

 Before any work on the machine itself, pull the mains
plug.
Adjusting the Cutting Depth (see figure C)
 Adjust the cutting depth to the thickness of the work-
piece. Less than a full tooth of the blade teeth should be
visible below the workpiece.
Loosen the clamping lever 25. For a smaller cutting depth,
pull the saw away from the base plate 14; for a larger cutting
depth, push the saw toward the base plate 14. Adjust the de-
sired cutting depth at the cutting-depth scale. Tighten the
clamping lever 25 again.
The tightening tension of the clamping lever 25 can be readjust-
ed. For this, unscrew the clamping lever 25, and screw it back
again turned offset by at least 30° in anticlockwise direction.
Adjusting the Cutting Angle
It is best to place the machine on the face side of the blade
guard 17.
Loosen the wing bolts 7 and 15. Tilt the saw sidewards. Ad-
just the desired measure on the scale 5. Tighten the wing
bolts 7 and 15 again.
Note: For bevel cuts, the cutting depth is smaller than the set-
ting indicated on the cutting-depth scale 26.
Cutting Marks
45 0
The 0° cutting mark 10 indicates the position of the saw blade
for right-angled cuts. The 45° cutting mark 9 indicates the po-
sition of the saw blade for 45° cuts.
1 609 92A 2AU | (9.6.16)
For precise cuts, position the circular saw against the work-
piece as shown in the figure. It is best to carry out a trial cut.

Starting Operation

 Observe correct mains voltage! The voltage of the pow-
er 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.
Check the adjustment of the riving knife before starting oper-
ation of the machine.
Switching On and Off
To start the machine, first push the lock-off button for the
On/Off switch 2 and then press the On/Off switch 1 and keep
it pressed.
To switch off the machine, release the On/Off switch 1.
Note: For safety reasons, the On/Off switch 1 cannot be
locked; it must remain pressed during the entire operation.
To save energy, only switch the power tool on when using it.

Working Advice

Protect saw blades against impact and shock.
Guide the machine evenly and with light feed in the cutting di-
rection. 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 Non-ferrous Metals
Note: Use only a sharp saw blade that is suitable for non-fer-
rous metals. This ensures a clean cut and prevents blade bind-
ing.
Guide the switched on power tool against the workpiece and
carefully start the cut. Continue the cut with low feed and
without interruption.
When sawing profiles, always begin the cut from the narrow
side; when sawing U-profiles, never start the cut from the
open side. Support long profiles in order to avoid blade bind-
ing and kickback of the power tool.
45 0
Sawing with Parallel Guide (see figure D)
The parallel guide 11 enables exact cuts along a workpiece
edge and cutting strips of the same dimension.
Loosen wing bolt 8 and slide the scale of the parallel guide 11
through the guide in the base plate 14. Adjust the desired cut-
ting width as the scale setting at the respective cutting mark
10 or 9; see Section "Cutting Marks". Tighten wing bolt 8
again.
Bosch Power Tools