Dust/Chip Extraction; Starting Operation - Bosch GEF 7 E Professional Manual De Instrucciones

OBJ_BUCH-1841-002.book Page 13 Tuesday, June 11, 2013 1:11 PM
Technical file (2006/42/EC) at:
Robert Bosch GmbH, PT/ETM9
D-70745 Leinfelden-Echterdingen
Henk Becker Helmut Heinzelmann
Executive Vice President Head of Product Certification
Engineering PT/ETM9
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
08.06.2013
Assembly
 Before any work on the machine itself, pull the mains
plug.

Dust/Chip Extraction

 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.
– 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.
 Prevent dust accumulation at the workplace. Dusts can
easily ignite.
Mounting the Auxiliary Handle (see figure A)
 Operate your machine only with the auxiliary handle 3.
Screw the auxiliary handle 3 on the right or left of the machine
head depending on the working method.
Adjusting the Sanding Attachment (see figure B)
– Before adjusting the sanding attachment 10, completely
release clamping lever 5.
– Move the sanding attachment 10 accordingly to suit your
working conditions and working position.
– Close the clamping lever 5 and tighten it firmly.
Note: Clamping lever 5 is indexed (adjustable), allowing it to
be set to an ergonomically favourable or space-saving posi-
tion.
With the clamping lever 5 tightened, pull its lever away from
the machine head, turn it to the desired position and allow it
to engage again.
Changing the Sanding Belt (see figure C)
– Loosen fastening screw 9 and remove the attachment cov-
er 8.
– Press sanding attachment 10 via the supporting surface 14
against a sturdy object (e. g. a bench top) until the sanding
attachment 10 deflects. Remove the sanding belt 12.
Bosch Power Tools
– Firstly, position the new sanding belt 12 around on the
drive roller 7 and then around the deflection roller 13. Pay
attention that the arrow directions on the inside of the
sanding belt (if given) and on the attachment cover 8 of the
power tool correspond. Release the sanding attachment
10 again, so that the sanding belt 12 is tensioned.
– Mount the attachment cover 8 with fastening screw 9.
– Adjust the belt run as required, see section "Adjusting the
Belt Run".
Adjusting the Belt Run (see figure D)
 Adjust the belt run only when the power tool is
switched off and disconnected from the power supply.
Turn adjustment screw 1 until the sanding belt 12 is posi-
tioned centred on deflection roller 13.
Selecting the Sanding Belt
Depending on the material to be worked and the required rate
of removal, different sanding belts are available:
For dry sanding and pre-sanding
For structuring and for smoothing
out minor unevenness
For fine structuring
Polishing
Note: Depending on the application method and the material
being worked, either flexible of stiff sanding belts can be
used.
Changing the Sanding Arm (see figure E)
– Remove the sanding belt 12 (see section "Changing the
Sanding Belt").
– Unscrew adjustment screw 1 and remove the sanding arm
16.
– Mount the new sanding arm 16 and fasten it with adjust-
ment screw 1.
– Pay attention that the sanding arm 16 is correctly mounted
according to figure E.
– Mount the sanding belt 12 (see section "Changing the
Sanding Belt").
– Adjust the belt run (see section "Adjusting the Belt Run").
Operation

Starting Operation

 Observe correct mains voltage! The voltage of the
power 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 power tool, push the On/Off switch 4 forwards.
To switch off the machine, push On/Off switch 4 toward the
rear.
To save energy, only switch the power tool on when using it.
English | 13
Grain size
coarse 40, 60
medium 80, 120
180
fine
Fleece belts
Fleece belts
3 609 929 C46 | (11.6.13)