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Bosch GCM18V-12GDCN - Page 19

Bosch GCM18V-12GDCN
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19
Assembly
Your tool is equipped with a secondary
locking latch to prevent the battery pack
from completely falling out of the battery
bay, should it become loose due to vibra-
tion.
To remove the battery pack, press the bat-
tery pack release button 48 and slide the
battery pack completely out of the battery
bay (Fig. 3).
Removing and Installing
Blades
Always wear gloves
when changing or han-
dling blades. Blade tips can cause personal
injury.
REMOVING BLADE
1. Position the saw in the UP position and
at bevel. If in the DOWN position,
press down slightly on the saw head as-
sembly and pull out the head assembly
lock pin (item 43, page 12); then allow
the saw head to come up.
2. Rotate Lower Blade Guard until there is
a clear access to the Blade Bolt (Fig. 4).
3. Press and hold the arbor lock (red but-
ton on opposite side of upper guard
item 42, page 12). Rotate the blade
slowly while pressing the arbor lock until
it fully seats into its lock position.
4. Using the 6/4mm hex key, loosen the
blade bolt by firmly turning it clockwise.
NOTE: This bolt has left-hand threads.
5. Remove the blade bolt and outer washer.
Carefully grab the blade. Slide the blade
away from the inner washer and off the
arbor shaft, then down and away from
the saw. Leave the inner washer on the
arbor shaft (see Fig. 5).
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).
To reduce risk of injury,
use saw blade rated
4000/min (RPM) or greater.
1. Follow all “Moving Guard Assemblyand
“Removing Blade” steps.
2. Carefully handle the new blade. Check
that the rotation arrow on the blade
matches the rotation arrow on the lower
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 support ring
of the inner washer (see Fig. 4 and 5).
3. Place the outer washer over the arbor
shaft and finger-tighten the blade bolt
(counterclockwise). 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 position.
5. Using the 6/4mm hex key, firmly tighten
the blade bolt counterclockwise. NOTE:
This bolt has left-hand threads. Do not
over tighten. A 6mm hex key may be
used as an alternate.
6. Remove the lower guard link from the
Blade
Bolt
Blade
Rotation
Arrow
Lower
Blade
Guard
Guard
Link
F
ig
.
4
Outer
Washer
Blade Bolt
Saw Blade
Arbor Shaft
Support Ring
Inner
Washer
Fig. 5
1609B06757.qxp_GCM18V-12GDC 3/25/20 12:35 PM Page 19
www.calcert.com sales@calcert.com1.800.544.2843
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