Bosch GCM18V-12SD Operating/Safety Instructions Manual page 20

Fig. 12
Outer
washer
Blade
bolt
Installing 12" (305mm) Blade
To avoid injury, do not use a
blade larger or smaller than
12" diameter and 1" (25.4mm) arbor. The
blade's maximum plate thickness is 0.100"
(2.54mm). The blade's maximum kerf thickness
is 1/8" (3.175mm).
To reduce risk of injury, use
saw blade rated 5000/min
(RPM) or greater.
After installing a new blade,
make sure the blade does
not interfere with the table insert at 0° and 45°
bevel positions. Lower the blade into the blade
slot and check for any contact with the base or
turntable structure. If the blade contacts base
or table, seek authorized service.
1. If a blade is currently installed, remove it
as described in "Removing Blade" on page
19.
2. Carefully handle the new blade. Check that
the rotation arrow on the blade matches the
rotation arrow on the upper guard. Slide the
blade up and between the sides of the chip
deflector and over the arbor shaft. Move the
blade so its arbor hole goes around the sup-
port ring of the inner washer (Fig. 11 and
Fig. 12).
3. Place the outer washer over the arbor shaft
and finger-tighten the blade bolt (counter-
clockwise). Check that the blade remained
on the inner washer's support ring.
4. Rotate the blade slowly while pressing the
arbor lock until it fully seats into its lock po-
sition.
5. Using the Torx wrench (Fig. 7, 43), firmly
tighten the blade bolt counterclockwise.
16099221PH GCM18V-12SD OSI 20220506.indd 20
Assembly
25
Inner
washer
Arbor shaft
Support Ring
-20-
NOTE: This bolt has left-hand threads. Do
not over tighten. A T30 Torx key may be used
as an alternate.
6. Be sure the arbor lock is released so the
blade turns freely.
7. Place the Torx wrench (43) back in the stor-
age area.
5/6/22 12:15 PM