Preparing For Operation - Bosch GCM 8 SJL Professional Manual Original

OBJ_BUCH-1736-005.book Page 27 Thursday, December 8, 2016 10:59 AM
External Dust Extraction
For dust extraction, a vacuum hose (size Ø 35 mm) can also
be connected to the chip ejector 2.
– Connect the vacuum hose with the chip ejector 2.
The vacuum cleaner must be suitable for the material being
worked.
When vacuuming dry dust that is especially detrimental to
health or carcinogenic, use a special vacuum cleaner.
Changing the Saw Blade (see figures D1–D4)
 When mounting the saw blade, wear protective gloves.
Danger of injury when touching the saw blade.
Use only saw blades whose maximum permitted speed is
higher than the no-load speed of the power tool.
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. This prevents
overheating of the saw teeth during sawing.
Removing the Saw Blade
– Bring the power tool into the working position.
– Turn the hex socket screw 46 with the hex key (5 mm) 34
and at the same time press the spindle lock 45 until it en-
gages.
– Hold the spindle lock 45 pressed and unscrew the hex
socket screw 46 in clockwise direction (left-hand thread!).
– Remove the clamping flange 47.
– Press locking switch 9 and swing back the retracting blade
guard 11 to the stop.
– Hold the retracting blade guard in this position and remove
the saw blade 12.
– Slowly guide the retracting blade guard downward again.
Mounting the Saw Blade
If required, clean all parts to be mounted prior to assembly.
– Press locking switch 9, swing back the retracting blade
guard 11 to the stop and hold it in this position.
– Place the new saw blade onto the interior clamping flange
48.
 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!
– Slowly guide the retracting blade guard downward again.
– Place on the clamping flange 47 and the screw 46.
Press the spindle lock 45 until it engages and tighten the
screw turning in anticlockwise direction.
Operation
 Before any work on the machine itself, pull the mains
plug.
Transport Safety (see figure E)
The transport safety-lock 38 enables easier handling of the
machine when transporting to various working locations.
Bosch Power Tools
Releasing the Machine (Working Position)
– Push the tool arm by the handle 8 down a little in order to
relieve the transport safety-lock 38.
– Pull the transport safety-lock 38 completely outward.
– Guide the tool arm slowly upward.
Securing the Machine (Transport Position)
– Loosen the locking screw 33 if tightened. Pull the tool arm
completely to the front and tighten the locking screw
again.
– Screw adjusting screw 4 completely upward.
– To lock the saw table 15, tighten the locking knob 20.
– Press locking switch 9 and slowly guide the tool arm down-
ward by the handle 8.
– Guide the tool arm downward until the transport safety-
lock 38 can be pushed completely inward.

Preparing for Operation

Extending the Saw Table (see figure F)
Long workpieces must be underlaid or supported at their free
end.
The saw table can be extended left and right with the saw-
table extensions 13.
– Push clamping lever 16 upward.
– Pull out the saw-table extension 13 to the desired length.
– To lock the saw-table extension, push clamping lever 16
down again.
Moving the Fence (see figure G)
When sawing bevel angles, the adjustable fence 27 must be
pulled outward or removed completely.
Mitre/Bevel Angle
Vertical Horizontal
– Loosen locking screw 28.
–2°– 47° ≤ 44°
– Pull the adjustable fence 27
(right-
ward) completely outward.
– Remove locking screw 28.
0°– 47° ≥ 45°
– Pull the adjustable fence 27
(right-
ward) completely outward.
– Remove the adjustable fence
upward.
Clamping the Workpiece (see figure H)
To ensure optimum working safety, the workpiece must
always be firmly clamped.
Do not saw workpieces that are too small to clamp.
– Press the workpiece firmly against the fence 14.
– Insert the material clamp 29 provided into one of the holes
36 intended for it.
– Adapt the threaded rod 49 of the screw clamp to the work-
piece height.
– Firmly tighten the threaded rod 49, thus fastening the
workpiece.
English | 27
1 609 92A 2NV | (8.12.16)