Dust/Chip Extraction; Changing The Sanding Sheet (See Figure D); Changing The Sanding Plate (See Figure E) - Bosch PSM 18 LI Manual Original

The lithium-ion battery is protected against deep discharge
by the "Electronic Cell Protection (ECP)". When the battery
is discharged, the power tool is switched off by means of a
protective circuit: The application tool no longer rotates.
Do not continue to press the On/Off switch after the
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power tool has automatically switched off. The battery
can be damaged.
Follow the instructions on correct disposal.
Removing the Battery (see figure A)
To remove the battery (2), press the release button (1) and
pull the battery back and out of the power tool. Do not use
force to do this.

Dust/chip extraction

The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reac-
tions and/or cause respiratory illnesses in the user or in
people in the near vicinity.
Certain dusts, such as oak or beech dust, are classified as
carcinogenic, especially in conjunction with wood treatment
additives (chromate, wood preservative). Materials contain-
ing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
Avoid dust accumulation at the workplace. Dust can
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easily ignite.
Self-generated dust extraction with dust box
(see figures B1–B4)
Place the dust box (3) onto the extraction outlet (10) until it
clicks into place.
To empty the dust box (3), pull the dust box downwards.
Before opening the dust box (3), knock the dust box against
a firm surface as shown in the figure to loosen the dust from
the filter element.
Holding the dust box (3) firmly, flap the filter element (11)
upwards out of the way and empty the dust box. Use a soft
brush to clean the flaps of the filter element (11).
External dust extraction (see figure C)
Attach the dust extraction adapter (12) to the extraction
outlet (10). A dust extraction hose with a diameter of 19 mm
can be connected to the dust extraction adapter (12).
You will find an overview of connecting to various dust ex-
tractors at the end of these operating instructions.
The dust extractor must be suitable for the material being
worked.
When extracting dry dust that is especially detrimental to
health or carcinogenic, use a special dust extractor.
Bosch Power Tools

Changing the sanding sheet (see figure D)

Remove dirt and dust from the sanding plate (5), e.g. with a
brush, before attaching a new sanding sheet.
To ensure optimum dust extraction, make sure that the
punched holes in the sanding sheet are aligned with the
drilled holes in the sanding plate.
The sanding plate (5) is fitted with a hook-and-loop fasten-
ing, allowing sanding sheets with a similar backing to be se-
cured quickly and easily.
Tap the hook-and-loop fastening of the sanding plate (5) be-
fore fitting the sanding sheet (4) to facilitate maximum adhe-
sion.
The power tool is equipped with two sanding sheets. De-
pending on their state of wear, these can also be changed in-
dividually.
Only use the power tool when both sanding sheets are
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fitted.
Only use sanding sheets with the same grit.
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Position the sanding sheet (4) so that it is flush with one a
side of the sanding plate (5), then place the sanding sheet
on the sanding plate and press it on firmly.
To remove the sanding sheet (4), take hold of it by an edge
and pull it away from the sanding plate (5).
You can use the Bosch delta sander sanding sheets.
Sanding accessories such as fleece/polishing felt are at-
tached to the sanding plate in the same way.
Choosing the sanding sheet
Different sanding sheets are available, depending on the ma-
terial you are working with and the required surface removal
rate:
Application
For working all materials such as wood, paint,
filler, varnish, hard and softwood, and chip-
board
For pre-sanding, e.g. of rough and un-
even beams and boards
For surface sanding and levelling of
slight irregularities
For finishing and fine sanding of hard
woods
For any finishing work, such as polishing (metal and stone in
particular), use fleece/polishing felt.
Different types of fleece and polishing felts should be used
depending on the surface finish required on the workpiece.
Changing the sanding plate (see figure E)
❶ Push the SDS slider for sanding plate release (6) all the
way to the right.
❷ Remove the sanding plate (5).
❸ Move the sanding plate (5) against the sanding plate
holder from below and press it firmly into place.
❹ Push the SDS slider for sanding plate release (6) all the
way to the left.
English | 15
Grit
40–180
Coarse 40
Medium 80, 120
Fine 180
1 609 92A 4MT | (17.10.2018)