Starting Operation; Working Advice - Bosch GSA 16-32 Professional Manual Original

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OBJ_BUCH-2842-001.book Page 14 Wednesday, April 5, 2017 5:39 PM
14 | English
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

Starting Operation

 Observe correct mains voltage! The voltage of the pow-
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
Products sold in AUS and NZ only: Use a residual current de-
vice (RCD) with a rated residual current of 30 mA or less.
When operating the machine with power from mobile genera-
tors that do not have sufficient reserve capacity or are not
equipped with suitable voltage control with starting current
amplification, loss of performance or untypical behavior can
occur upon switching on.
Please observe the suitability of the power generator being
used, particularly with regard to the mains voltage and fre-
quency.
Controlling/Presetting the Stroke Rate
Soft start allows for a precise cutting start in hard materials
(e.g. steel).
Increasing or reducing the pressure on the On/Off switch 11 en-
ables stepless stroke-rate control of the switched-on machine.
Light pressure on the On/Off switch 11 results in a low stroke
rate. Increasing the pressure also increases the stroke rate.
With the thumbwheel for stroke rate preselection 9, the
stroke rate can be preset and changed during operation.
1:
Low stroke rate
6:
High stroke rate
The constant electronic control keeps the stroke rate almost
constant at no-load and under load, and ensures uniform
working performance.
The required stroke rate is dependent on the material and the
working conditions and can be determined by a practical trial.
Reducing the stroke rate is recommended when the saw
blade engages in the material as well as when sawing plastic
and aluminium.
Orbital Action Settings
The adjustable orbital action allows for optimal adaptation of
cutting speed, cutting capacity and cutting pattern to the ma-
terial being worked.
The level of orbital action can be set with rotary switch 6, even
during operation.
Orbital action switched off (level 0):
For working thin or hard material such as sheet metal or steel.
For achieving clean cutting edges.
1 609 92A 2L1 | (5.4.17)
Pendulum action level 1:
For working non-ferrous metals, hardwood, plastics or mate-
rials of medium density.
Pendulum action level 2:
For working non-ferrous metals, hardwood, plastics or mate-
rials of medium density.
For working soft materials, e. g., soft building materials, insu-
lation material, softwood, tree wood.
Pivoting and Retractable Footplate (see figure B)
Due to its movability, the adjustable footplate 2 adapts to the
required angular position of the surface.
Depending on the saw blade being used and the application,
the footplate 2 can be moved in lengthway direction in three
steps. Press the release button for the footplate 13 and slide
the footplate 2 to the required position. Release the footplate
release button 13 and check that the footplate 2 is firmly
latched. Slide the footplate 2 as required until it is firmly
latched.
To clean the saw blade holder 16, you can also completely
pull out the footplate 2 when the release button 12 is
pressed. After cleaning, slide the footplate back into its hold-
er until it engages.
 Do not press the release button 13 during operation.
You could lose control over the power tool and injure your-
self.
Switching On and Off
Switching on: Press the lock-off button 10 forward. Press
the On/Off switch 11 upward and keep it pressed.
Switching off: Release the On/Off switch 11.
To save energy, only switch the power tool on when using it.
Air deflector
The air deflector 7 guides the exhaust air from the drive away
from the operator. If the air deflector 7 comes loose, click it
back in.

Working Advice

 Before any work on the machine itself, pull the mains
plug.
 When sawing light building materials, observe the stat-
utory provisions and the recommendations of the ma-
terial suppliers.
 Ensure that the saw blade is always longer than the di-
ameter of the workpiece, see Figure D. There is a risk of
kickback.
Check wood, press boards, building materials, etc. for foreign
objects such as nails, screws or similar, and remove them, if
required.
Switch the machine on and guide it toward the workpiece. Po-
sition the base plate 2 onto the surface of the work and saw
through the material applying uniform contact pressure and
feed. After completing the working procedure, switch the ma-
chine off.
If the saw blade should jam, switch the machine off immedi-
ately. Widen the gap somewhat with a suitable tool and pull
out the machine.
Bosch Power Tools

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