Bosch GWS Professional 750 Manual Original página 19

OBJ_BUCH-2565-003.book Page 20 Thursday, December 21, 2017 12:00 PM
20 | English
Angle Grinder
Kickback stop
Restarting Protection
Reduced starting current
Weight according to EPTA-Procedure
01:2014
– with vibration-damping auxiliary
handle
– with standard-auxiliary handle
Protection class
The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.
Noise/Vibration Information
Sound emission values determined according to
EN 60745-2-3.
Typically the A-weighted noise levels of the product are:
Sound pressure level 91 dB(A); Sound power level
102 dB(A). Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 60745-2-3:
2
Surface grinding: a =6.5 m/s , K=1.5 m/s
h
2
Disk sanding: a =3.5 m/s , K=1.5 m/s
h
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total working
period.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the
accessories, keep the hands warm, organisation of work pat-
terns.
Assembly
Mounting the Protective Devices
 Before any work on the machine itself, pull the mains
plug.
Note: After breakage of the grinding disc during operation or
damage to the holding fixtures on the protection guard/power
tool, the machine must promptly be sent to an after-sales ser-
vice agent for maintenance. For addresses, see section "Af-
ter-sales Service and Application Service".
1 609 92A 48B | (21.12.17)
GWS... 750 750-100 750-100 I
–

–
kg 1.9
kg 1.8
/II
Protection Guard for Grinding
Place the protection guard 7 on the spindle collar. Adapt the
position of the protection guard 7 to the requirements of the
work step. Lock protection guard 7 by tightening locking
screw 8 with combination spanner 4/5.
 Adjust the protection guard 7 in such a manner that
sparking is prevented in the direction of the operator.
Note: The encoding keys on the protection guard 7 ensure
that only a protection guard that fits the machine type can be
mounted.
2
,
2
. Protection Guard for Cutting
 For cutting with bonded abrasives, always use the pro-
tection guard for cutting 14.
 Provide for sufficient dust extraction when cutting
stone.
The protection guard for cutting 14 is mounted in the same
manner as the protection guard for grinding 7.
Auxiliary Handle
 Operate your machine only with the auxiliary handle 3.
Screw the auxiliary handle 3 on the right or left of the machine
head depending on the working method.
Hand Guard
 For operations with the rubber sanding plate 17 or with
the cup brush/wheel brush/flap disc, always mount the
hand guard 16.
The hand guard 16 is fastened with the auxiliary handle 3.
Mounting the Grinding Tools
 Before any work on the machine itself, pull the mains
plug.
 Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Clean the grinder spindle 6 and all parts to be mounted.
For clamping and loosening the grinding tools, lock the grind-
er spindle with the spindle lock button 1.
 Actuate the spindle lock button only when the grinder
spindle is at a standstill. Otherwise, the machine may be-
come damaged.
750-125 750-125

– –

– –

– –
1.9 1.9 1.9
1.8 1.8 1.8
/II /II /II
750-125
– –
– –
– –
1.9 1.9
1.8 1.8
/II /II
Bosch Power Tools