Inserting/Replacing Saw Blades; Dust/Chip Extraction; Starting Operation; Switching On/Off - Bosch GFZ 16-35 AC Professional Originalbetriebsanleitung

14 | English

Inserting/Replacing Saw Blades

When fitting or changing the saw blade, wear protect-
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ive gloves. Blades are sharp and can become hot when
used for prolonged periods of time.
Selecting the saw blades
Choose the saw blades according to the material being
worked.
For sawing light building materials, only use carbide-tipped
saw blades. Do not use saw blades intended for sawing
wood or plastics.
Inserting saw blades (see figures G–H)
Turn the machine so that the base plate faces upward. Re-
move the extraction outlet (8) if necessary. To do this, pull
the extraction outlet apart at the cams (10) and pull it off to-
wards the rear.
Always insert first the saw blade that has the closest driving
pin (17) to the motor.
Note: Each time the power tool is switched off, the driving
pins (17) will be in a different position. The illustration
shows a random position.
The lettering on the saw blade must always face out-
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wards and correspond to the colour of the driving pin.
Press and hold the SDS button for saw blade release (9).
This causes the engaging pin (18) to move back and allows
the saw blades to be hooked in.
Hook the appropriate saw blade (12) into the driving
pin (17) that is closest to the motor ➊. Move the saw blade
into the blade guide (19) and engage the nose of the saw
blade in the grove on the blade body (1).
Hook the second saw blade into the free saw blade driving
pin (17) ➋. Move the saw blade into the saw blade
guide (19). Release the SDS button for saw blade re-
lease (9).
From above, press on the second saw blade (12) until the its
nose engages in the grove on the blade body (1).
Check that the saw blades are fitted securely. A loose
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saw blade can fall out and lead to injuries.
Fit the saw blade guard (11) onto the saw blades (12).
Removing saw blades (see figures I–J)
Press the SDS button for saw blade release (9). Simultan-
eously pull both saw blades (12) to the level of the saw
blade driving pins (17) out of the saw blade guide (19) ➊.
Slide the saw blades (12) along their length (➋) and, one
after the other, pull them out of the blade guide (19) (➌).
The saw blades will interlock if an attempt is made to remove
both of them at the same time.

Dust/Chip Extraction

The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reac-
tions and/or cause respiratory illnesses in the user or in
people in the near vicinity.
Certain dusts, such as oak or beech dust, are classified as
1 609 92A 4YJ | (13.06.2019)
carcinogenic, especially in conjunction with wood treatment
additives (chromate, wood preservative). Materials contain-
ing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
Avoid dust accumulation at the workplace. Dust can
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easily ignite.
Connecting the dust extraction system (see figure F)
Attach the extraction outlet (8) below the handle (6) on the
housing and allow it to engage in the cams (10).
Insert an extraction hose (7) (diameter 35 mm, accessory)
into the extraction outlet (8). Connect the extraction hose
(7) to a dust extractor (accessory).
You will find an overview of connecting to various dust ex-
tractors at the end of these operating instructions.
The dust extractor must be suitable for the material being
worked.
When extracting dry dust that is especially detrimental to
health or carcinogenic, use a special dust extractor.
Operation
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.

Starting Operation

Pay attention to the mains voltage. The voltage of the
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power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.

Switching on/off

When switching on the machine, the saw blades must
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not be resting on, or touching, any objects.
To switch on the power tool, press the lock-off button (4) to
the left or right. Then press the on/off switch (5) and keep it
pressed.
To switch off the power tool, release the on/off switch (5).
Preselect the stroke rate
You can also preselect the stroke rate and change it during
operation using the stroke rate preselection thumbwheel
(3).
1–2: Low stroke rate
3–4: Medium stroke rate
5–6: High stroke rate
The required stroke rate depends on the material and the
working conditions and can be ascertained through practical
tests.
Bosch Power Tools