Operating Modes - Bosch GST Professional 120 E Manual Original

OBJ_BUCH-615-003.book Page 23 Friday, January 16, 2009 1:58 PM
Sliding Shoe
When working surfaces that are easily
scratched, the sliding shoe 7 can be attached
onto the base plate 8 in order to prevent the sur-
face from being scratched.
To attach the sliding shoe 7, insert it at the front
of the base plate 8, push the rear part upward
and allow it to latch.
Operation

Operating Modes

Before any work on the machine itself, pull
the mains plug.
Orbital Action Settings
The four orbital action settings allow for optimal
adaptation of cutting speed, cutting capacity
and cutting pattern to the material being sawed.
The orbital action can be adjusted with the ad-
justing lever 10, even during operation.
Setting 0 No orbital action
Setting I Small orbital action
Setting II Medium orbital action
Setting III Large orbital action
The optimal orbital action setting for the respec-
tive application can be determined through
practical testing. The following recommenda-
tions apply:
– Select a lower orbital action setting (or
switch it off) for a finer and cleaner cutting
edge.
– For thin materials such as sheet metal,
switch the orbital action off.
– For hard materials such as steel, work with
low orbital action.
– For soft materials and when sawing in the di-
rection of the grain, work with maximum or-
bital action.
Bosch Power Tools
Adjusting the Cutting Angle (see figure G)
The base plate 8 can be swivelled by 45° to the
left or right for mitre cuts.
– Remove the dust cover 15 and the vacuum
connection 6.
– Release the clamping lever 22 of the base
plate and lightly push the base plate 8 to-
ward the mains cable.
– For adjustment of precise mitre angles, the
base plate has adjustment notches on the
left and right at 0° and 45°. Swivel the base
plate 8 to the desired position according to
the scale 20. Other mitre angles can be ad-
justed using a protractor.
– Afterwards, push the base plate 8 to the stop
in the direction of the saw blade 13.
– Close the base plate clamping lever 22 to
lock the base plate in the adjusted position.
The dust cover 15, vacuum connection 6 and
splinter guard 19 cannot be used for mitre cuts.
Offsetting the Base Plate (see figure H)
For sawing close to edges, the base plate 8 can
be offset to the rear.
– Remove the dust cover 15 (see "Dust Cover",
page 22).
– Release the clamping lever 22 of the base
plate and push the base plate 8 toward the
mains cable to the stop.
– Close the base plate clamping lever 22 to
lock the base plate in the adjusted position.
Sawing with the base plate 8 offset is possible
only with a mitre angle of 0°. In addition, the
parallel guide with circle cutter 25 (accessory)
as well as the splinter guard 19 may not be used.
Changing the Pre-tension of the Base Plate
With the thumbwheel 21, the pre-tension of the
base plate clamping lever 22 can be changed.
When the base plate 8 is not seated tightly after
closing the lever, open the clamping lever and
turn the thumbwheel for pre-tension of the base
plate in the "+" direction.
When the base plate cannot be adjusted or only
with difficulty after opening the clamping lever,
turn the thumbwheel in the "–" direction.
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