Bosch GCM 12 SD Professional - Manual (Page 49)

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Bosch Power Tools 1 609 929 X01 | (1/7/10)
Checking and Adjusting the Basic
Adjustment
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.
Setting the Standard Bevel Angle 0°
(Vertical)
– Bring the machine into the transport posi-
tion.
– Turn the saw table 18 to the 0° detent 17.
The lever 15 must be felt to engage in the de-
tent.
Checking: (see figure S1)
– Set an angle gauge to 90° and place it on the
saw table 18.
The leg of the angle gauge must be flush with
the saw blade 9 over the complete length.
Adjusting: (see figure S2)
– Loosen the clamping lever 16.
– Loosen set screws 60 and 61 with the sup-
plied open-end spanner 3 (10 mm).
– Loosen set screw 62 (approx. 3 turns) with
the supplied Allen key 35 (4 mm).
– Screw set screw 59 (10 mm) in or out until
the leg of the angle gauge is flush with the
saw blade over the complete length.
– Retighten the clamping lever 16 again.
Afterwards, tighten set screw 62 first, and
then set screws 60 and 61.
When the angle indicators 33 and 24 are not in
line with the 0° marks of scale 32 after adjust-
ing, loosen the fastening screws of the angle in-
dicators with the supplied Phillips screwdriver
35 and align the angle indicators alongside the
0° marks.
Setting the Standard 45° Bevel Angle
(Leftward)
– Bring the power tool into the working posi-
tion.
– Turn the saw table 18 to the 0° detent 17.
The lever 15 must be felt to engage in the de-
tent.
– Pull the left fence extension 21 completely
outward.
– Loosen the clamping lever 16 and tilt the tool
arm leftward to the stop (45°) by the handle
7.
Checking: (see figure T1)
– Set an angle gauge to 45° and place it on the
saw table 18.
The leg of the angle gauge must be flush with
the saw blade 9 over the complete length.
Adjusting: (see figure T2)
– Screw set screw 63 (10 mm) in or out until
the leg of the angle gauge is flush with the
saw blade over the complete length.
– Retighten the clamping lever 16 again.
When the angle indicators 33 and 24 are not in
line with the 45° marks of scale 32 after adjust-
ing, firstly once more check the 0° setting for
the bevel angle and the angle indicators. Then
repeat the adjustment of the 45° bevel angle.
Adjusting the Clamping Force of Clamping Le-
ver 16 (see figure T2)
The clamping force of clamping lever 16 can be
readjusted.
Checking:
– The clamping force of the clamping lever
must securely hold the position of the tool
arm at any bevel angle.
Adjusting:
– Loosen the clamping lever 16.
– Turn set screw 64 in anticlockwise direction
with the supplied open-end spanner 3
(17 mm) to reduce the clamping force, or in-
crease the clamping force by turning in clock-
wise direction.
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