Bosch GKS 190 - Инструкция по эксплуатации - Страница 17

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17

Bosch Power Tools

1 619 P09 868 | (4.11.11)

Operation

Operating Modes

f

Before any work on the machine itself, pull the mains 

plug.

Adjusting the Cutting Depth (see figure C)

f

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 

24

. For a smaller cutting depth, 

pull the saw away from the base plate 

12

; for a larger cutting 

depth, push the saw toward the base plate 

12

. Adjust the de-

sired cutting depth at the cutting-depth scale. Tighten the 

clamping lever 

24

 again.

If the cutting depth cannot be fully adjusted after loosening 

clamping lever 

24

, pull clamping lever 

24

 away from the saw 

and swivel it downward. Release the clamping lever 

24

 again. 

Repeat this procedure until the requested cutting depth can 

be adjusted.
If the cutting depth cannot be sufficiently locked after tighten-

ing clamping lever 

24

, pull clamping lever 

24

 away from the 

saw and swivel it upward. Release the clamping lever 

24

again. Repeat this procedure until the cutting depth is locked.

Adjusting the Cutting Angle

Loosen the wing bolts 

6

 and 

26

. Tilt the saw sidewards. Ad-

just the desired measure on the scale 

5

. Tighten the wing 

bolts 

6

 and 

26

 again.

Note: 

For bevel cuts, the cutting depth is smaller than the set-

ting indicated on the cutting-depth scale 

25

.

Cutting Marks

The 0 °  cutting mark (

9

) indicates the position of the saw 

blade for right-angled cuts. The 45 °  cutting mark (

8

) indi-

cates the position of the saw blade for 45 °  cuts.
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

f

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.

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.

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 with Parallel Guide (see figure D)

The parallel guide 

10

 enables exact cuts along a workpiece 

edge and cutting strips of the same dimension.
Loosen wing bolt 

7

 and slide the scale of the parallel guide 

10

through the guide in the base plate 

12

. Adjust the desired cut-

ting width as the scale setting at the respective cutting mark 

9

or 

8

; see Section “Cutting Marks”. Tighten wing bolt 

7

 again.

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.

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.

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 replacement of the supply cord is necessary, this has to 

be done by Bosch or an authorized Bosch service agent in or-

der to avoid a safety hazard.

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