Preparing For Operation - Bosch GCM 12 SDE Professional Originalbetriebsanleitung

160992A3UL_201801.book Page 35 Wednesday, January 10, 2018 1:52 PM
– Remove the clamping flange 48.
– Remove the saw blade 49.
– Slowly guide the retracting blade guard downward again.
Mounting the Saw Blade:
If required, clean all parts to be mounted prior to assembly.
– Swing back the retracting blade guard 16 to the stop.
Hold the retracting blade guard in this position.
– Place the new saw blade onto the interior clamping flange
50.
 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 48 and the hex socket screw
47. Press the spindle lock 43 until it engages and tighten
the screw turning in anticlockwise direction.
– Slowly guide the retracting blade guard downward again.
Mounting with SDS Bolt (see figure D)
 With vertical mitre cuts and the use of the SDS bolt 32,
you need to ensure that the SDS bolt can never come in-
to contact with the workpiece surface before sawing.
This is done by setting an appropriate depth stop (see
"Adjusting the Depth Stop", page 38). This prevents,
that the SDS bolt and / or the workpiece may be damaged.
Removing the Saw Blade:
– Bring the power tool into the working position.
– Swing back the retracting blade guard 16 to the stop.
Hold the retracting blade guard in this position.
– Turn the SDS bolt 32 and at the same time press the spin-
dle lock 43 until it engages.
– Hold the spindle lock 43 pressed and unscrew the SDS
bolt 32 in clockwise direction (left-hand thread!).
– Remove the clamping flange 48.
– Remove the saw blade 49.
– Slowly guide the retracting blade guard downward again.
Mounting the Saw Blade:
If required, clean all parts to be mounted prior to assembly.
– Swing back the retracting blade guard 16 to the stop.
Hold the retracting blade guard in this position.
– Place the new saw blade onto the interior clamping flange
50.
 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!
– Attach the clamping flange 48 and the SDS bolt 32. Press
the spindle lock 43 until it engages and tighten the SDS
bolt in anticlockwise direction.
– Slowly guide the retracting blade guard downward again.
Operation
 Before any work on the machine itself, pull the mains
plug.
Bosch Power Tools
Transport Safety (see figure E)
The transport safety-lock 10 enables easier handling of the
machine when transporting to various working locations.
Releasing the Machine (Working Position)
– Push the tool arm by the handle 13 down a little in order to
relieve the transport safety-lock 10.
– Pull the transport safety-lock 10 completely outward.
– Guide the tool arm slowly upward.
Securing the Machine (Transport Position)
– Loosen the locking screw 6 if tightened. Pull the tool arm
completely to the front and tighten the locking screw
again.
– Screw adjusting screw 41 completely upward.
– To lock the saw table 20, tighten the locking knob 23.
– Slowly guide the tool arm downward with the handle 13.
– Guide the tool arm downward until the transport safety-
lock 10 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-ta-
ble extensions 29.
– Loosen the clamping screw 18.
– Pull out the saw-table extension 29 to the desired length.
– Retighten the clamping screw 18 to fix the saw-table ex-
tension.
Moving the Fence (see figure G)
When sawing vertical bevel angles, you have to pull the left-
hand or right-hand adjustable fence 2 outward depending on
the cutting direction, or remove it completely.
Bevel angle range
–2°... 40° leftward – Loosen the locking screw 38.
– Pull the adjustable fence 2
–2°... 35° rightward
completely outward.
>40° leftward – Loosen the locking screw 38.
– Pull the adjustable fence 2
completely outward.
>35° rightward
– Remove the adjustable fence
upward.
Clamping the Workpiece (see figure H)
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 fences 2 and 1.
– Insert the material clamp 40 provided into one of the holes
31 intended for it.
– Loosen the wing bolt 52 and adapt the material clamp to
the workpiece. Tighten the wing bolt again.
– Firmly tighten the threaded rod 51, thus fastening the
workpiece.
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1 609 92A 3UL | (10.1.18)