Dust Extraction; Operating Instructions; Sanding Sheet Usage - Bosch GDA 280 E Instruction Manual

Dust extraction

Dust extraction prevents large ac-
cumulations of dust, high concen-
trations of dust in the ambient air
and facilitates disposal.
For long periods of working with
wood or for commercial use on ma-
terials that produce dust that is det-
rimental to health, the machine is
to be connected to a suitable exter-
nal dust extraction device.
The machine has a built-in vacuuming channel
which, in conjunction with a suitable vacuum
cleaner, provides external dust extraction.
For extraction, a 19 mm dia. vacuum hose 1 can
be connected directly to the vacuum connec-
tion 2. When using a 35-mm dia. vacuum hose,
an additional adapter
(1 600 499 005 - see accessories).
The appliance can be plugged directly into the
socket of a Bosch all-purpose vacuum cleaner
which incorporates a remote-control start device.
The vacuum cleaner automatically starts when
the appliance is switched on.

Operating instructions

The material removal during sanding is deter-
mined primarily by the selection of the sanding
sheet and the setting of the oscillation rate.
For exact sanding in corners, on edges and
hard-to-reach places, sanding can be done with
the point alone or with one of the edges of the
sanding sheet.
Only flawless sanding sheets produce good
sanding results and protect the machine.
Take care to apply uniform sanding pressure;
the service life of the sanding sheet is in-
creased in this manner.
An increase in the sanding pressure does not
increase the sanding performance but causes
increased wear to the machine and the sand-
ing tools.
Do not sand wood and metal with the same
sanding sheet.
Use only original Bosch sanding sheets,
polishing tools and accessories.
12
must be used

Sanding Sheet Usage

Depending on the material to be worked and the
desired surface removal, various sanding sheet
are available.
Coated sanding sheets ( ) have a much higher
service life as compared with uncoated sheets
when used with the prescribed material.
Corundum
Application: - Woods with low resin content
- Metal
- Varnish
- Paint
Corundum (with coating)
Application: - Woods containing resin
- (larch, pine, spruce)
- Filler
- PVC
- Paint
- Varnish
SiC
Application: - Steel (alloyed)
- Stone
- PVC
- Aluminum and non-ferrous metal
- Varnish
Fleece and Polishing Felt Usage
The usage of fleeces and polishing felts make
possible the finishing or polishing of metal and
stone in particular.
Depending on the desired surface quality, vari-
ous types of fleeces and polishing felts can be
used.
Coarse Fleece
Application: - Rust removal from steel
- (alloyed)
- Stone
- Paint removal
- Structuring of wood
Medium Fleece
Application: - Structuring of steel (alloyed),
- delustering, finishing
- Polishing of stone
- Sanding of synthetic resin
- enamel
- Finishing of repaired areas in
wood
Cleaning Fleece
Application: - Cleaning of metal
Polishing Felt
Application: - Super-finishing of steel (alloyed)
- Polishing of automobile paint