Adjusting - Bosch GCM 12 SD Professional Originalbetriebsanleitung

OBJ_BUCH-1130-003.book Page 34 Friday, December 5, 2014 12:37 PM
34 | English
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 mainte-
nance task quickly and reliably.
Setting the Standard Bevel Angle 0° (Vertical)
– Bring the machine into the transport position.
– Turn the saw table 18 to the 0° detent 17. The lever 15
must be felt to engage in the detent.
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 lock lever 16.
– Loosen set screws 60 and 61 with the supplied open-end
spanner 3 (10 mm).
– Loosen set screw 62 (approx. 3 turns) with the supplied
hex 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 lock 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 adjusting, loosen the fastening screws
of the angle indicators with the supplied cross-head screwdriv-
er 35 and align the angle indicators alongside the 0° marks.
Setting the Standard 45° Bevel Angle (Leftward)
– Bring the power tool into the working position.
– Turn the saw table 18 to the 0° detent 17. The lever 15
must be felt to engage in the detent.
– Pull the left fence extension 21 completely outward.
– Loosen the lock 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 lock lever 16 again.
When the angle indicators 33 and 24 are not in line with the
45° marks of scale 32 after adjusting, firstly once more check
the 0° setting for the bevel angle and the angle indicators.
Then repeat the adjustment of the 45° bevel angle.
1 609 92A 0XM | (5.12.14)
Adjusting the Clamping Force of Lock Lever 16
(see figure T2)
The clamping force of lock 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 lock lever 16.
– Turn set screw 64 in anticlockwise direction with the sup-
plied open-end spanner 3 (17 mm) to reduce the clamping
force, or increase the clamping force by turning in clock-
wise direction.
– Adjust a vertical bevel angle, retighten lock lever 16 and
check if the desired clamping force has been reached.
Adjusting the Clamping Force of Clamp 5 (see figure U)
The clamping force of the handle clamp 5 can be readjusted.
Checking:
– The clamping force of the clamp must securely hold the
handle in any of the 4 possible positions.
Adjusting:
– Open clamp 5.
– Turn both set screws 65 in anticlockwise direction with the
supplied hex key 2 (1.5 mm) to reduce the clamping force,
or increase the clamping force by turning in clockwise di-
rection.
Always adjust both set screws to the same height.
– Shut clamp 5 and check if the desired clamping force has
been reached.
Aligning the Angle Indicator (Horizontally) (see figure V)
– Bring the power tool into the working position.
– Turn the saw table 18 to the 0° detent 17. The lever 15
must be felt to engage in the detent.
Checking:
The angle indicator 66 must be in alignment with the 0° mark
of the scale 40.
Adjusting:
– Loosen the fastening screw of the angle indicator with the
supplied cross-head screwdriver 35 and align the angle in-
dicator alongside the 0° mark.
– Retighten the screw again.
Aligning the Fence
– Bring the machine into the transport position.
– Turn the saw table 18 to the 0° detent 17. The lever 15
must be felt to engage in the detent.
Checking: (see figure W1)
– Adjust an angle gauge to 90° and position it flush with the
saw blade 9 between the fence 20 and the saw blade on
the saw table 18.
The leg of the angle gauge must be flush with the fence over
the complete length.
Bosch Power Tools