Bosch GSH 11 E Professional Manual Original página 12

OBJ_BUCH-66-009.book Page 12 Monday, September 12, 2016 1:00 PM
12 | English
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 60745-2-6:
2
Chiselling: a =18.5 m/s , K= 2.4 m/s
h
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may signif-
icantly reduce the exposure level over the total working period.
Identify additional safety measures to protect the operator from
the effects of vibration such as: maintain the tool and the acces-
sories, keep the hands warm, organisation of work patterns.
Assembly
Auxiliary Handle
 Operate your machine only with the auxiliary handle 7.
The auxiliary handle 7 can be set to any position for a secure
and low-fatigue working posture.
– Loosen the knurled nut 8, rotate the auxiliary handle 7
around the axis of the machine to the required position and
tighten the knurled nut 8 again.
– The auxiliary handle 7 can be mounted to a different posi-
tion. For this, completely unscrew the knurled nut 8 and
then pull out the hexagon bolt upward. Pull off the auxiliary
handle 7 to the side and turn around the remaining clamp-
ing element by 180°. Mount the auxiliary handle 7 in re-
verse order.
Changing the Tool
 Before any work on the machine itself, pull the mains
plug.
With the SDS-max tool holder, simpler and easier tool chang-
ing is possible without additional aids.
The dust protection cap 1 largely prevents the penetration of
dust into the tool holder during operation. When inserting the
tool, pay attention that the dust protection cap 1 is not dam-
aged.
 A damaged dust protection cap should be changed im-
mediately. We recommend having this carried out by
an after-sales service.
Inserting (see figure A)
– Clean and lightly grease the shank end of the tool.
– Insert the tool in a twisting manner into the tool holder until
it latches itself.
– Check the latching by pulling the tool.
Removing (see figure B)
– Push back the locking sleeve 2 and remove the tool.
1 609 92A 2BD | (12.9.16)
Dust/Chip Extraction
 Dust from materials such as lead-containing coatings,
2
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 car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– 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.
Operation
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.
Switching On and Off
– To start the machine, push the On/Off switch 4 to the
right.
– To switch off the machine, push the On/Off switch 4 to
the left.
For low temperatures, the machine reaches the full impact
rate only after a certain time.
This start-up time can be shortened by striking the chisel in
the machine against the floor one time.
To save energy, only switch the power tool on when using it.
Setting the Impact Rate
The electronic control enables stepless speed preselection in
accordance with the material to be worked.
The constant electronic control keeps the preselected impact
rate nearly constant between no-load and load conditions.
– Select the impact rate with the thumbwheel 5 according to
the material.
Changing the Chiselling Position (Vario-Lock)
The chisel can be locked in 12 positions. In this manner, the
optimum working position can be set for each application.
– Insert the chisel into the tool holder.
– Push the chisel adjustment ring 3 forward and turn the
chisel to the required position with the chisel adjustment
ring 3.
– Release the chisel adjustment ring 3 and turn the chisel un-
til it latches.
Working Advice
 Before any work on the machine itself, pull the mains
plug.
Bosch Power Tools