Maintenance And Service - Bosch GRO 12V-35 Professional Notice Originale

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– Screw the clamping nut (12) onto the drive spindle (20)
and tighten it slightly by turning it clockwise with the
open-ended spanner (17).
Changing the Dust Protection Cap (see figure E)
Two dust protection caps are included in the scope of deliv-
ery.
Use the dust protection cap (11) when you need a good grip
for detailed work.
Use the dust protection cap (21) when you have to work
close to the workpiece surface.
The dust protection cap largely prevents the penetration of
dust into the tool holder during operation. When inserting
the tool, make sure that the dust protection cap does not be-
come damaged.
– Unscrew the dust protection cap used.
– Screw on the new dust protection cap and tighten it.
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.
– 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.
Avoid dust accumulation at the workplace. Dust can
u
easily ignite.
Operation
Starting operation
Inserting the Battery
Insert the charged battery (9) into the battery holder until it
is flush and you feel it engage.
Switching On and Off
To start the power tool, slide the on/off switch (6) forwards.
To switch off the power tool, push the on/off switch (6) to-
wards the rear.
Adjusting the Speed
The speed regulator (7) enables continuously variable ad-
justment of the speed of the power tool even during opera-
tion.
Speed setting
1
2
Bosch Power Tools
Speed setting
3
4
5
6
– When working with plastics and other materials with a low
– Perform cutting work in wood, iron or steel at high
– When polishing, buffing and cleaning, work with speeds
Practical advice
Detailed work can be carried out best if you hold the power
tool as a pen between the thumb and index finger
(see figure F).
For heavy work such as cutting or grinding, use the "golf grip
method" (see figure G).
Move the cutting disc or grinding accessory with light pres-
sure to achieve an optimum work result. Too much pressure
will reduce the performance of the power tool and lead to
faster wear of the application tool.
u
Recommended Cutting Methods
– Board materials (see figure H)
– Rods (see figure I)
– Pipes (see figure J)
Blockage Protection
The built-in blockage protection protects the motor and bat-
tery in case of a blockage. If the application tool becomes
jammed in the workpiece or if too much pressure is exerted
on the workpiece, the motor will stop.
– Determine the cause of the blockage and eliminate it.
Recommendations for optimal handling of the
battery
Protect the battery against moisture and water.
Only store the battery only within a temperature range of -20
to 50 °C. Do not leave the battery in your car in the summer,
for example.
Occasionally clean the ventilation slots on the battery using a
soft brush that is clean and dry.
A significantly reduced operating time after charging indic-
ates that the battery has deteriorated and must be replaced.
Follow the instructions on correct disposal.

Maintenance and Service

Speed adjustment range
Maintenance and Cleaning
-1
5000–8000 min
-1
9000–12,000 min
u
Speed adjustment range
melting point, use low speeds.
speeds.
-1
of up to max. 15,000 min
in order to avoid damaging the
workpiece and application tool.
Ensure that grinding tools and cutting discs are pro-
tected against impact when stored.
Remove the battery from the power tool before carry-
ing out work on the power tool (e.g. maintenance,
1 609 92A 6BM | (05.03.2021)
English | 11
-1
16,000–19,000 min
-1
20,000–24,000 min
-1
24,000–28,000 min
-1
30,000–35,000 min

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