Bosch Professional GSS 140 Original Instructions Manual page 14

14 | English
Orbital sander
Weight according to EPTA-Proced-
ure 01:2014
Protection class
The specifications apply to a rated voltage [U] of 230 V. These specifications may vary at different voltages and in country-specific models.
Values can vary depending upon the product and are subject to application and environmental conditions. For further information
www.bosch-professional.com/wac.
Noise/Vibration Information
Noise emission values determined according
to EN 62841-2-4.
Typically, the A-weighted noise level of the power tool is:
Sound pressure level 85 dB(A); sound power
level 93 dB(A). Uncertainty K = 3 dB.
Wear hearing protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 62841-2-4:
2 2
a = 3.4 m/s , K = 1.5 m/s
h
The vibration level and noise emission value given in these
instructions have been measured in accordance with a
standardised measuring procedure and may be used to com-
pare power tools. They may also be used for a preliminary
estimation of vibration and noise emissions.
The stated vibration level and noise emission value repres-
ent the main applications of the power tool. However, if the
power tool is used for other applications, with different ac-
cessories or is poorly maintained, the vibration level and
noise emission value may differ. This may significantly in-
crease the vibration and noise emissions over the total work-
ing period.
To estimate vibration and noise emissions accurately, the
times when the tool is switched off or when it is running but
not actually being used should also be taken into account.
This may significantly reduce vibration and noise emissions
over the total working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and accessories, keeping their hands warm, and
organising workflows correctly.
Assembly
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Changing the sanding sheet
Remove dirt and dust from the sanding plate (3), 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.
Sanding sheets without hook-and-loop backing (see
figures A–C)
❶ Unlock both sanding-sheet clamps (4) and swivel them
downwards.
1 609 92A 8RN | (03.08.2023)
GSS 140
kg 1.1
/ II
❷ Insert the sanding sheet (5) under the rear clamping
bracket (2). Ensure that the sanding sheet (5) is not too
short and that it is correctly clamped. Swivel the sand-
ing-sheet clamp (4) back into the starting position and
lock it in place.
❸ Position the sanding paper so that it fits tightly around
the sanding plate (3). Clamp the front part of the sand-
ing sheet under the front clamping bracket (6). Ensure
that the sanding sheet (5) is not too short and that it is
correctly clamped. Swivel the sanding-sheet clamp (4)
back into the starting position and lock it in place.
To remove the sanding sheet (5), unlock both sanding-sheet
clamps (4) and pull the sanding sheet out of its bracket.
Unperforated sanding sheets, e.g. from rolls or bulk stock
sold by the metre, can be perforated using the punch (11)
for the purpose of dust extraction. To do this, fit the sanding
sheet on the power tool and push the tool down onto the
punch (see figure D).
Selecting a sanding sheet
Different sanding sheets are available, depending on the ma-
terial you are working with and the required surface removal
rate:
For processing all wood and wood-based ma-
terials
For pre-sanding, e.g. of rough and un-
even beams and boards
For surface sanding and levelling of
slight irregularities
For finish-sanding and fine sanding of
hardwoods
For processing paint and lacquer layers or
primers such as fillers and bodyfillers
For sanding down paint
For sanding undercoats
For final sanding of primers prior to
painting
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-
GSS 140 A
1.1
/ II
Grit
40–240
Coarse 40, 60
Medium 80, 120
Fine 180, 240
40–240
Coarse 40, 60
Medium 80, 120
Fine 180, 240
Bosch Power Tools