Bosch Professional GCM 12 SD Manual Original página 42

OBJ_BUCH-1130-002.book Page 42 Thursday, July 1, 2010 11:44 AM
42 | English
External Dust Extraction
For dust extraction, you can also connect the ex-
traction adapter 44 to a vacuum hose
(Ø 32 mm).
The vacuum cleaner must be suitable for the ma-
terial being worked.
When vacuuming dry dust that is especially det-
rimental to health or carcinogenic, use a special
vacuum cleaner.
Changing the Tool (see figures D1
Before any work on the machine itself, pull
the mains plug.
When mounting the saw blade, wear protec-
tive 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 in-
structions and that are tested and marked in ac-
cordance with EN 847-1.
Use only saw blades recommended by the tool
manufacturer, and suitable for sawing the mate-
rials to be cut.
Removing the Saw Blade
– Bring the power tool into the working posi-
tion.
– Pull the transport safety-lock 28 all the way
outward and turn it by 90°. Allow the trans-
port safety-lock to engage in this position.
The tool arm is now locked in the working po-
sition.
– Loosen the screws 47 and 46 with the pro-
vided Phillips screwdriver 35.
Do not completely unscrew the screws.
– Push the locking lever 43 and swing the re-
tracting blade guard 10 to the rear to the
stop.
– Turn hexagon bolt 48 with the supplied sock-
et spanner 35 and at the same time press the
spindle lock 42 until it engages.
– Keep the spindle lock 42 pressed and un-
screw hexagon bolt 48 in clockwise direction
(left-hand thread!).
1 609 929 X01 | (1/7/10)
– Remove the washer 49 and the clamping
flange 50.
– Remove the saw blade 9.
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 51.
Take care during the mounting that the cut-
ting direction of the teeth (direction of the
D3)
–
arrow on the saw blade) agrees with the di-
rection of the arrow on the retracting blade
guard!
– Mount the clamping flange 50, the washer 49
and the hexagon bolt 48.
Press spindle lock 42 until it engages and
tighten hexagon bolt 48 with the supplied
socket spanner 35 in anticlockwise direction
with a tightening torque of approx.
15–23 Nm.
– Push the locking lever 43 and guide the re-
tracting blade guard 10 down again.
– Retighten the screws 47 and 46.
Operation
Before any work on the machine itself, pull
the mains plug.
Transport Safety (see figure E)
The transport safety-lock 28 enables easier han-
dling of the machine when transporting to vari-
ous working locations.
Releasing the Machine (Working Position)
– Push the tool arm by the handle 7 down a lit-
tle in order to relieve the transport safety-
lock 28.
– Pull the transport safety-lock 28 all the way
outward and turn it by 90°. Allow the trans-
port safety-lock to engage in this position.
– Guide the tool arm slowly upward.
Bosch Power Tools