Bosch GCM 8 S Professional Manual Original página 29

OBJ_BUCH-198-007.book Page 29 Friday, June 10, 2011 9:29 AM
Use only saw blades that correspond with the characteristic
data given in these operation instructions and that are tested
and marked in accordance with EN 847-1.
Use only saw blades recommended by the tool manufacturer,
and suitable for sawing the materials to be cut.
Removing the Saw Blade
– Push the locking lever 35 and swing the retracting blade
guard 6 to the rear to the stop.
– Loosen the screw 36 with the Phillips screwdriver 26 pro-
vided until the fastening element of the retracting blade
guard can also be swung to the rear to the stop.
– Turn the Allen screw 38 with the Allen key 26 provided
while at the same time pressing the spindle lock 37 until it
engages.
– Hold the spindle lock 37 pressed and unscrew the Allen
screw 38 in clockwise direction (left-hand thread!).
– Remove the clamping flange 39.
– Remove the saw blade 40.
Mounting the Saw Blade
If required, clean all parts to be mounted prior to assembly.
– Place the new saw blade onto the interior clamping flange
41.
When mounting the saw blade, pay attention that the
cutting direction of the teeth (arrow direction on the
saw blade) corresponds with the direction of the arrow
on the blade guard!
– Place on the clamping flange 39 and the screw 38.
Press the spindle lock 37 until it engages and tighten the
screw turning in anticlockwise direction.
– Fasten the retracting blade guard 6 again (tighten screw
36).
– Push the locking lever 35 and guide the retracting blade
guard 6 down again.
Operation
Before any work on the machine itself, pull the mains
plug.
Transport Safety (see figure E)
The transport safety-lock 27 enables easier handling of the
machine when transporting to various working locations.
Releasing the Machine (Working Position)
– Push the tool arm by the handle 5 down a little in order to
relieve the transport safety-lock 27.
– Pull the transport safety-lock 27 completely outward.
– Guide the tool arm slowly upward.
Securing the Machine (Transport Position)
– Loosen the locking screw 25 if tightened. Pull the tool arm
completely to the front and tighten the locking screw
again.
– Screw the depth stop 23 completely to the top. (see "Ad-
justing the Depth Stop", page 31)
– To lock the saw table 8, tighten the locking knob 11.
– Push the locking lever 35 and at the same time move the
tool arm by the handle 5 downward.
Bosch Power Tools
– Guide the tool arm downward until the transport safety-
lock 27 can be pushed completely inward.
Preparing for Operation
Clamping the Workpiece (see figure F)
To ensure optimum working safety, the workpiece must al-
ways be firmly clamped.
Do not saw workpieces that are too small to clamp.
– Press the workpiece firmly against the fence 18.
– Insert the material clamp 42 provided into one of the holes
16 intended for it.
– Loosen the wing bolt 43 and adapt the material clamp to
the workpiece. Tighten the wing bolt again.
– Firmly clamp the workpiece by turning the threaded rod
44 in clockwise direction.
Adjusting the Cutting Angle
To ensure precise cuts, the basic adjustment of the machine
must be checked and adjusted as necessary after intensive
use (see "Checking and Adjusting the Basic Adjustment",
page 32).
Always tighten the locking knob 11 firmly before saw-
ing. Otherwise the saw blade can become wedged in the
workpiece.
Adjusting Mitre Angles (see figure G)
The mitre angle can be set in the range from 50° (left side) to
58° (right side).
– Loosen the locking knob 11 in case it is tightened.
– Pull the lever 12 and turn the saw table 8 until the desired
mitre angle is indicated on the angle indicator 13.
– Tighten the locking knob 11 again.
For quick and precise setting of often used mitre angles,
detents 14 are provided on the saw table:
Left
0°
45° 30° 22.5° 15°
– Loosen the locking knob 11 in case it is tightened.
– Pull lever 12 and rotate the saw table 8 left or right to the
requested detent.
– Release the lever again. The lever must be felt to engage in
the detent.
Adjusting Bevel Angles (see figure H)
The bevel angle can be set in the range from 0° to 45°.
– Loosen the lock lever 21.
– Tilt the tool arm by the handle 5 until the angle indicator 20
indicates the desired bevel angle.
– Hold the tool arm in this position and retighten the clamp-
ing lever 21.
For quick and precise setting of the standard angles 0°
und 45°, end stops are provided on the housing.
– For this, tilt the tool arm by the handle 5 to the stop toward
the right (0°) or to the stop toward the left (45°).
English | 29
Right
15° 22.5° 30° 45°
1 609 929 X05 | (10.6.11)