Noise/Vibration Information - Bosch GST 650 Professional Notice Originale

OBJ_BUCH-3278-001.book Page 8 Tuesday, February 20, 2018 2:53 PM
8 | English

Noise/Vibration Information

Sound emission values determined according to
EN 62841-2-11.
Typically the A-weighted noise levels of the product are:
Sound pressure level 85 dB(A); Sound power level 96 dB(A).
Uncertainty K =5 dB.
Wear hearing protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 62841-2-11:
2
Cutting wood: a =4.5 m/s , K=1.5 m/s
h
2
Cutting sheet metal: a =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 62841 and may be used to compare one tool with
another. It may be used for a preliminary assessment of
exposure.
The declared vibration emission level represents the main
applications of the tool. However, if the tool is used for differ-
ent 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
significantly 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, organise work patterns.
Assembly
 Before any work on the machine itself, pull the mains
plug.
Replacing/Inserting the Saw Blade
 When mounting the saw blade, wear protective gloves.
Danger of injury when touching the saw blade.
Selecting a Saw Blade
You will find an overview of recommended saw blades at the
end of these operating instructions. Only use saw blades with
a ¼" universal shank. The saw blade should not be longer than
required for the cut you want to make.
Use a thin saw blade for narrow curve cuts.
Inserting/Replacing the Saw Blade (see figure A)
Undo the screw 6 using the Allen key 4 supplied (5 mm).
Insert the saw blade 8 (teeth in cutting direction) into the
stroke rod until it latches 10.
Push the back of the saw blade 8 into the groove in the guide
roller 7.
Tighten the fastening screw 6 using the Allen key 4.
 Check the tight seating of the saw blade. A loose saw
blade can fall out and lead to injuries.
For removal of the saw blade, proceed in reverse order.
1 609 92A 405 | (20.2.18)
Splinter Guard (see figure B)
The splinter guard 12 (accessory) can prevent fraying of the
surface while sawing wood. The splinter guard can only be
used for certain saw blade types and only for cutting angles of
0°. When sawing with the splinter guard, the base plate 5
must not be moved back for cuts that are close to the edge.
Press the splinter guard 12 from the bottom into the base
plate 5.
Dust/Chip Extraction
2
,
 Dust from materials such as lead-containing coatings,
2
.
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dust can
easily ignite.
Operation
Operating Modes
 Before any work on the machine itself, pull the mains
plug.
Adjusting the Cutting Angle (see figure C)
The base plate 5 can be swivelled by 45° to the left or right for
mitre cuts.
Loosen the screw 13 and lightly slide the base plate 5 in the
direction of the mains cable.
For adjustment of precise mitre angles, the base plate has ad-
justment notches on the left and right at 0° and 45°. Swivel
the base plate 5 to the desired position according to the scale
14. Other mitre angles can be adjusted using a protractor.
Afterwards, push the base plate 5 to the stop in the direction
of the saw blade 8.
The splinter guard 12 can not be inserted for mitre cuts.
Offsetting the Base Plate (see figure D)
For sawing close to edges, the base plate 5 can be offset to
the rear.
Unscrew the screw 13 completely and remove this screw 13
along with the profiled plate 15.
Lift up the base plate 5 and reposition it such that the screw
13 can be screwed into the threaded hole through the open-
ing in the base plate 18. Make sure that the positioning cam
16 engages in the second opening in the base plate 17. Insert
the screw 13 along with the profiled plate 15, and then tight-
en the screw.
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