Bosch GTM 12 Professional Manual Original página 69

OBJ_BUCH-302-007.book Page 69 Tuesday, December 7, 2010 11:10 AM
– Make sure that the blade guard is posi-
tioned properly. It must always face against
the workpiece while sawing.
– Switch on the machine.
– Saw through the workpiece applying uniform
feed.
– Switch off the machine and wait until the
saw blade has come to a complete stop.
Checking and Adjusting the Basic
Adjustment
Before any work on the machine itself, pull
the mains plug.
To ensure precise cuts, the basic adjustment of
the machine must be checked and adjusted as
necessary after intensive use.
A certain level of experience and appropriate
specialty tools are required for this.
A Bosch after-sales service station will handle
this maintenance task quickly and reliably.
Adjusting the Clearance Indicator of the
Parallel Guide (see figure
– Use a workpiece or an object with an exactly
defined width x. The length of the object
should approximately correspond with the
diameter of the saw blade.
– Slide the object under the blade guard 65
and position it flush to the saw blade.
– Move the parallel guide 63 from the right side
until it touches the object, and then lock the
parallel guide in this position.
Checking:
The clearance indicator 71 must indicate the
width x of the object on the scale 67.
Adjusting:
– Loosen screw 72 with the slotted screwdriv-
er provided and align the clearance indicator
exactly to the width x.
Bosch Power Tools
Adjusting the Tension Force of the Parallel
Guide (see figure
The tension force of the guide 73 on the parallel
guide can decrease after frequent use.
– Tighten the adjustment screw 74 until the
parallel guide can be firmly affixed on the
saw table again.
Aligning the Parallel Guide Parallel to the Saw
Blade
– Use a workpiece or an appropriate object
with parallel edges. The length of the object
should approximately correspond with the
diameter of the saw blade.
– Slide the object under the blade guard 65
and position it flush to the saw blade.
– Move the parallel guide 63 from right to left
until it touches the object.
Checking: (see figure
The parallel guide must be flush with the object
over the complete length.
Adjusting:
G)
– Remove the parallel guide from the saw table
61 and loosen the three screws 75 inside the
glide pad of the parallel guide using a Phillips
screwdriver. (see figure
– Press the parallel guide from the front firmly
against the scale 67 and align it flush along-
side the object on the saw table. (see
figure
– Hold the parallel guide in this position and
tighten the left and right set screw 76 with
the slotted screwdriver provided. (see
figure
– Remove the parallel guide from the saw ta-
ble.
– Screw the centre set screw 76 in or out until
it is flush with the glide pad surface.
– Hold the respective position of each set
screw and tighten all screws 75 again. (see
figure
If the parallel guide can no longer be firmly at-
tached onto the saw table after aligning, reset
the tensioning force of the guide 73. (see "Ad-
justing the Tension Force of the Parallel Guide",
page 69)
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