Bosch Professional GEX 125-1 A Instructions Manual page 9

OBJ_BUCH-335-006.book Page 9 Monday, October 7, 2013 3:22 PM
Sanding Surfaces
Switch the machine on, place it with the complete sanding
surface on the surface to be worked and move the machine
with moderate pressure over the workpiece.
The removal capacity and the sanding pattern are mainly de-
termined by the selection of the sanding sheet, the preselect-
ed orbital stroke rate (GEX 125-1 AE) and the applied pres-
sure.
Only flawless sanding sheets achieve good sanding capacity
and extend the service life of the machine.
Pay attention to apply uniform sanding pressure; this increas-
es the working life of the sanding sheets.
Intensifiying the sanding pressure does not lead to an in-
crease of the sanding capacity, but to increased wear of the
machine and the sanding sheet.
A sanding sheet that has been used for metal should not be
used for other materials.
Use only original Bosch sanding accessories.
Rough Sanding
Attach a sanding sheet with coarse grain.
Apply only light pressure to the machine so that it runs at a
higher stroke rate and high material removal is achieved.
Fine Sanding
Attach a sanding sheet with fine grain.
By lightly varying the application pressure or changing the or-
bital stroke rate (GEX 125-1 AE), the sanding plate stroke
rate can be reduced whereby the orbital action is maintained.
With moderate pressure, move the machine in a circular pat-
tern or alternately in lengthwise and crosswise directions
over the workpiece. Do not tilt the machine to avoid sanding
through the workpiece (e. g. when sanding veneer).
After finishing the working procedure, switch the power tool
off.
Polishing (GEX 125-1 AE)
For the polishing of weathered paint or buffing out scratches
(e.g., acrylic glass), the machine can be equipped with appro-
priate polishing accessories such as lamb's wool bonnet, pol-
ishing felt or sponge (accessories).
Select a low stroke rate (setting 1 –2) for polishing in order to
avoid excessive heating of the surface.
Apply the polish onto a somewhat smaller surface than you in-
tend to polish. Work the polishing agent in with a suitable pol-
ishing tool applying it crosswise or with circular motion and
moderate pressure.
Do not allow the polishing agent to dry out on the surface, oth-
erwise the surface can become damaged. Do not subject the
surface to be polished to direct sunlight.
Clean the polishing accessories regularly to ensure good pol-
ishing results. Wash out polishing accessories with a mild de-
tergent and warm water; do not use paint thinner.
Bosch Power Tools
Maintenance and Service
Maintenance and Cleaning
 Before any work on the machine itself, pull the mains
plug.
 For safe and proper working, always keep the machine
and ventilation slots clean.
If the replacement of the supply cord is necessary, this has to
be done by Bosch or an authorized Bosch service agent in or-
der to avoid a safety hazard.
If the machine should fail despite the care taken in manufac-
turing and testing procedures, repair should be carried out by
an after-sales service centre for Bosch power tools.
In all correspondence and spare parts order, please always in-
clude the 10-digit article number given on the type plate of
the machine.
After-sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
www.bosch-pt.com
Bosch's application service team will gladly answer questions
concerning our products and their accessories.
People's Republic of China
China Mainland
Bosch Power Tools (China) Co., Ltd.
567, Bin Kang Road
Bin Jiang District 310052
Hangzhou, P.R.China
Service Hotline: 4008268484
Fax: (0571) 87774502
E-Mail: contact.ptcn@cn.bosch.com
www.bosch-pt.com.cn
HK and Macau Special Administrative Regions
Robert Bosch Hong Kong Co. Ltd.
21st Floor, 625 King's Road
North Point, Hong Kong
Customer Service Hotline: +852 2101 0235
Fax: +852 2590 9762
E-Mail: info@hk.bosch.com
www.bosch-pt.com.hk
Indonesia
PT. Multi Mayaka
Kawasan Industri Pulogadung
Jalan Rawa Gelam III No. 2
Jakarta 13930
Indonesia
Tel.: (021) 46832522
Fax: (021) 46828645/6823
E-Mail: sales@multimayaka.co.id
www.bosch-pt.co.id
English | 9
2 609 141 112 | (7.10.13)