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Total vibration values a
(triax vector sum) and uncertainty K
h
determined according to EN 60745-2-23:
Surface grinding (roughing with grinding tool diameter of
25 mm):
2
2
a
= 6.6 m/s
, K = 1.5 m/s
h
Surface grinding (roughing with grinding tool diameter of
50 mm):
2
2
a
= 13.4 m/s
, K = 1.5 m/s
h
The vibration level given in these instructions has been
measured in accordance with a standardised measuring pro-
cedure and may be used to compare power tools. It can also
be used for a preliminary estimation of exposure to vibra-
tion.
The stated vibration level applies to the main applications of
the power tool. However, if the power tool is used for differ-
ent applications, with different application tools or poorly
maintained, the vibration level may differ. This can signific-
antly increase the exposure to vibration over the total work-
ing period.
To estimate the exposure to vibration accurately, the times
when the tool is switched off or when it is running but not ac-
tually being used should also be taken into account. This can
significantly reduce the exposure to vibration 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 application tools, keeping the hands warm,
and organising workflows correctly.
Fitting
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Fitting Abrasive Tools Using an Open-Ended
Spanner and Spindle Lock (see figure A)
Only use open-ended spanners that are suitable and
u
undamaged (see "Technical Data").
– Clean the grinding spindle (3) and all the parts to be fit-
ted.
– Press the spindle lock (13) and turn the clamping nut (2)
by hand until locked.
– Press and hold the spindle lock and loosen the clamping
nut (2) with the open-ended spanner (9) by turning it an-
ticlockwise.
– Insert the straight shank of the grinding tool all the way
into the collet (1).
– Press the spindle lock (13) and tighten the application
tool by placing the open-ended spanner (9) on the span-
ner flat and turning it clockwise.
The grinding tools must run completely concentrically. Do
not continue to use damaged grinding tools that are out of
balance. If the grinding tools are out of balance, they should
be replaced.
Bosch Power Tools
Do not, under any circumstances, tighten the collet
u
with the clamping nut until a grinding tool has been
fitted. The collet may otherwise become damaged.
Only use mounted points with an appropriate shank
u
diameter. A mounting point with a shank diameter which
does not correspond to the tool holder of the power tool
(see "Technical data") cannot be held properly and will
damage the collet chuck.
The application tool must be clamped at least 10 mm.
u
The inner shank dimension L
0
maximum permitted speed of the application tool from
the specifications provided by the manufacturer of the
application tool. It must not be less than the maximum
speed of the power tool.
Fitting Abrasive Tools Using Two Open-Ended
Spanners (see figure B)
Only use open-ended spanners that are suitable and
u
undamaged (see "Technical Data").
– Clean the grinding spindle (3) and all the parts to be fit-
ted.
– Use an open-ended spanner (8) on the spanner flat of the
grinder spindle (3) to hold it in place.
Loosen the clamping nut (2) by placing an open-ended
spanner (9) on the spanner flat and turning it counter-
clockwise.
– Insert the straight shank of the grinding tool all the way
into the collet (1).
– Hold the grinding spindle (3) with the open-ended span-
ner (8) and tighten the application tool by placing the
open-ended spanner (9) on the spanner flat and turning it
clockwise.
The grinding tools must run completely concentrically. Do
not continue to use damaged grinding tools that are out of
balance. If the grinding tools are out of balance, they should
be replaced.
Do not, under any circumstances, tighten the collet
u
with the clamping nut until a grinding tool has been
fitted. The collet may otherwise become damaged.
Only use mounted points with an appropriate shank
u
diameter. A mounting point with a shank diameter which
does not correspond to the tool holder of the power tool
(see "Technical data") cannot be held properly and will
damage the collet chuck.
The application tool must be clamped at least 10 mm.
u
The inner shank dimension L
0
maximum permitted speed of the application tool from
the specifications provided by the manufacturer of the
application tool. It must not be less than the maximum
speed of the power tool.
Dust/Chip Extraction
Dust from materials such as lead-containing coatings, some
wood types, minerals and metal can be harmful to one's
health. Touching or breathing-in the dust can cause allergic
English | 17
can be used to calculate the
can be used to calculate the
1 609 92A A6Z | (27.11.2024)
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