Installation And Removal Of The Blade - Bosch 4412 Operating/Safety Instructions Manual

Installation And Removal Of The Blade

Disconnect plug from power source
WARNING
!
before performing any assembly,
adjustment or repair to avoid possible injury.
1. The miter saw is equipped with a lock pin used to
lock the miter saw in the lower position. To release,
push the handle down slightly and pull the lock pin
to its full out position and rotate 90°.
NOTE:If the lock pin is stuck and will not pull out
when the handle is pushed down slightly, you may
have to adjust the depth stop bolt (see Depth
Adjustment, page 16) slightly so the handle can be
pushed down and the lock pin can be pulled out.
2. Rotate the lower guard by hand. Loosen front
cover screw to a point that cover plate can be lift-
ed (Figure 1).
3. Rotate the cover plate counterclockwise so the
blade bolt is exposed (Figure 1).
4. Press and hold the arbor lock (See figure on page
page 9). Use the multi purpose tool to remove the
blade bolt by turning wrench clockwise. NOTE:
The blade bolt has left hand threading.
Cover Plate
Rear Cover
Chip
Plate Screw
Deflector
Figure 1. Blade Removal
5. Remove the blade bolt, arbor washer, outer wash-
er and the blade. Inner washer does not need to
be removed (Figure 2).
Assembly
Lower Guard
Front
Cover
Plate
Screw
Blade Outer
Bolt Washer
11.
Outer Washer
Arbor Washer
Blade Bolt
(Left Hand Thread)
Figure 2. Blade Hardware
6. To install the 12" blade, fit blade between the chip
deflectors and onto the arbor shaft, and onto 1"
support ring on the inner washer (Figure 3).
NOTE: Make sure the rotation arrow on the blade
matches the clockwise rotation arrow on the lower
guard.
Deflector
Figure 3. Blade Installation
To avoid injury, do not use a blade
WARNING
!
larger or smaller than 12" diameter
and 1" arbor.
7. Replace the outer washer in the proper orientation,
insert the arbor washer, and tighten blade bolt
finger tight. Press the arbor lock and tighten blade
bolt securely using multi purpose tool, but do not
overtighten.
8. Rotate cover plate clockwise to original position.
Tighten the front cover plate screw.
Sawblade
Inner Washer
Inner
Washer
Chip
Arbor
Shaft