Dust/Chip Extraction - Bosch Professional GKS 235 Manual Original

OBJ_BUCH-344-006.book Page 9 Monday, January 23, 2017 8:52 AM
Circular Saw
Spindle lock
Base plate dimensions
Saw blade diameter, max.
Saw blade diameter, min.
Blade thickness, max.
Tooth thickness/setting, max.
Tooth thickness/setting, min.
Mounting bore
Weight according to EPTA-Procedure 01:2014
Protection class
These values apply for a rated voltage [U] of 230 V. These values may vary if the tool is used with different voltages or if the tool is a country-specific
model.
Starting cycles generate brief voltage drops. Interference with other equipment/machines may occur in case of unfavorable mains system conditions.
Malfunctions are not to be expected for system impedances below 0.25 ohm.
Assembly
Mounting/Replacing the Saw Blade
 Before any work on the power tool itself, pull the mains
plug.
 When mounting the saw blade, wear protective gloves.
Danger of injury when touching the saw blade.
 Only use saw blades that correspond with the charac-
teristic data given in the operating instructions.
 Do not under any circumstances use grinding discs as
the cutting tool.
Selecting a Saw Blade
An overview of recommended saw blades can be found at the
end of this manual.
Removal of the Saw Blade (see figure A)
For changing the cutting tool, it is best to place the power tool
on the face side of the motor housing.
– Press the spindle lock button 5 and keep it pressed.
The spindle lock button 5 may be actuated only when
the saw spindle is at a standstill. Otherwise, the power
tool can be damaged.
– With the hex key 17, unscrew the clamping bolt 18 turning
in rotation direction .
– Tilt back the retracting blade guard 12 and hold firmly.
– Remove the clamping flange 19 and the saw blade 20 from
the saw spindle 22.
Mounting the Saw Blade (see figure A)
For changing the cutting tool, it is best to place the power tool
on the face side of the motor housing.
– Clean the saw blade 20 and all clamping parts to be assem-
bled.
– Tilt back the retracting blade guard 12 and hold firmly.
– Place the saw blade 20 on to the mounting flange 21. The
cutting direction of the teeth (direction or arrow on saw
blade) and the direction-of-rotation arrow on the blade
guard 1 must correspond.
Bosch Power Tools
GKS 235

mm 383 x 170
mm 235
mm 230
mm 2.2
mm 3.2
mm 2.0
mm 25
kg 7.6
/ II
– Mount the clamping flange 19 and screw in the clamping
bolt 18 turning in rotation direction . Observe correct
mounting position of mounting flange 21 and clamping
flange 19.
– Press the spindle lock button 5 and keep it pressed.
– With the hex key 17, tighten the clamping bolt 18 turning
in rotation direction . The tightening torque is between
10–12 Nm, which corresponds to hand tight plus ¼ turn.

Dust/Chip Extraction

 Before any work on the power tool itself, pull the mains
plug.
 Dusts 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 dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– Use dust extraction whenever possible.
– 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.
 Avoid build-up of dust in the workplace. Dust is easily ig-
nited.
Mounting the Extraction Adapter (see figure B)
Attach the extraction adapter 24 onto the sawdust ejector 16
until it latches. Secure the extraction adapter 24 additionally
with the screw 23.
A vacuum hose with a diameter of 35 mm can be connected to
the extraction adapter 24.
 The extraction adapter may not be mounted when no
external dust extraction is connected. Otherwise the ex-
traction channel can become clogged.
English (US) | 9
GKS 235

383 x 170
235
230
2.2
3.2
2.0
25.4
7.6
/ II
1 609 92A 35X | (23.1.17)