Bosch GSH 11 E Professional Manual Original página 12

12 | English
power tool and application tools, keeping their hands warm,
and organising workflows correctly.
Assembly
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Auxiliary handle
Do not operate your power tool without the auxiliary
u
handle (7).
You can swivel the auxiliary handle (7) to any angle for a safe
work posture that minimises fatigue.
– Loosen the knurled nut (8), rotate the auxiliary handle (7)
around the axis of the tool to the required position and
retighten the knurled nut (8).
The auxiliary handle (7) can be refitted in a different posi-
tion.
– To do this, completely unscrew the knurled nut (8) and
then pull the hexagon bolt upwards and out.
– Pull off the auxiliary handle (7) to the side and rotate the
remaining clamping element by 180°.
– Fit the auxiliary handle (7) by following the steps in re-
verse order.
Changing the Tool
With the SDS-max tool holder, you can change the applica-
tion tool simply and easily without additional aids.
The dust protection cap (1) largely prevents the penetration
of drilling dust into the tool holder during operation. When
inserting the tool, make sure that the dust protection cap (1)
does not become damaged.
Replace a damaged dust protection cap immediately.
u
It is recommended that you have use an after-sales
service for this.
Inserting the application tool (see figure A)
– Clean and lightly grease the insertion end of the applica-
tion tool.
– Insert the application tool into the tool holder while turn-
ing it until it locks automatically.
– Check the latching by pulling the tool.
Removing the application tool (see figure B)
– Push the locking sleeve (2) back and remove the applica-
tion tool.
Dust/Chip Extraction
Dust 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 dust can cause allergic
reactions and/or lead to respiratory infections of the user or
bystanders.
Certain dust, such as oak or beech dust, is considered carci-
nogenic, especially in connection with wood-treatment ad-
ditives (chromate, wood preservative). Materials containing
asbestos may only be worked by specialists.
1 609 92A 7U7 | (09.11.2022)
– 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 ma-
terials to be worked.
Operation
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Starting Operation
Pay attention to the mains voltage! The voltage of the
u
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.
Products that are only sold in AUS and NZ: Use a resid-
u
ual current device (RCD) with a nominal residual current
of 30 mA or less.
Switching On and Off
– To start the power tool, push the on/off switch (4) to the
right.
– To switch off the power tool, push the on/off switch (4)
to the left.
At low temperatures, the power tool will take a certain
amount of time to reach its full impact performance. You can
shorten this warm-up time by tapping the power tool's inser-
ted application tool on the ground once.
Setting the impact rate
The electronic control enables continuous speed preselec-
tion in accordance with the material.
The constant electronic control keeps the preselected im-
pact rate almost constant when alternating between no-load
and loaded operation.
– Select the impact rate with the thumbwheel (5) according
to the material.
Changing the chiselling position (Vario-Lock)
You can lock the chisel in 12 different positions, allowing
you to select the optimum working position for each task.
– Insert the chisel into the tool holder.
– Push the chisel adjustment ring (3) forwards and turn the
chisel to the required position with the chisel adjustment
ring (3).
– Release the chisel adjustment ring (3) and turn the chisel
until it audibly clicks into place.
Working Advice
Sharpening the chiselling tools (see figure C)
Only sharp chiselling tools will produce good results, there-
fore sharpen your chiselling tools in good time before use.
This will ensure a long service life for the tools and good
work results.
Re-sharpening
Grind chiselling tools against sanding discs, e.g. aluminium
oxide, under a steady stream of water. Make sure that the
Bosch Power Tools