Maintenance And Service; Maintenance And Cleaning - Bosch PEX 400 AE Manual Original

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OBJ_BUCH-1336-001.book Page 21 Friday, November 12, 2010 10:16 AM
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 orbital stroke rate, the sanding
plate stroke rate can be reduced whereby the
orbital action is maintained.
With moderate pressure, move the machine in a
circular pattern 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
For the polishing of weathered paint or buffing
out scratches (e.g., acrylic glass), the machine
can be equipped with appropriate polishing ac-
cessories such as lamb's wool bonnet, polishing
felt or sponge (accessories).
Select a low stroke rate (setting 1–2) for polish-
ing in order to avoid excessive heating of the
surface.
Apply the polish onto a somewhat smaller sur-
face than you intend to polish. Work the polish-
ing agent in with a suitable polishing tool apply-
ing it crosswise or with circular motion and
moderate pressure.
Do not allow the polishing agent to dry out on
the surface, otherwise the surface can become
damaged. Do not subject the surface to be pol-
ished to direct sunlight.
Clean the polishing accessories regularly to en-
sure good polishing results. Wash out polishing
accessories with a mild detergent and warm wa-
ter; do not use paint thinner.
Bosch Power Tools
Application Table
The data in the following table are recommended
values.
The most favourable combination for working is
best determined by practical testing.
Roughening varnish
Touching up varnish
Removing varnish
Softwood
Hardwood
Veneer
Aluminium
Steel
Derusting steel
Stainless steel
Masonry, stone

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 neces-
sary, this has to be done by Bosch or an author-
ized Bosch service agent in order to avoid a safety
hazard.
If the machine should fail despite the care taken
in manufacturing 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 include the 10-digit article
number given on the type plate of the machine.
2 609 004 770 | (12.11.10)
English | 21
180/240
2/3
120/240
4/5
40/60
5
40/240
5/6
60/240
5/6
180/240
2–4
80/240
4/5
40/240
5
40/120
6
80/240
5
80/240
5/6

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