Bosch Power Tools 3912 Saw User Manual


 
30
Removal and Installation
of the Blade
Disconnect plug from power source
before performing any assembly,
adjustment or repair to avoid possible injury.
Note: Clean blade of any excess oil before installation.
1. Rotate the lower guard
1 by hand. Loosen, but do not
remove, the cover plate screw
2 using a Phillips or
straight screwdriver (Figure 2).
2. Rotate the cover plate
3 counterclockwise so the blade
bolt
4 is exposed (Figure 2).
3. Press and hold the arbor lock. Use the blade wrench to
remove the blade screw by turning wrench clockwise.
NOTE: The blade screw has a left hand thread.
4. Remove the blade bolt
4, outer washer 5 and the blade 6.
Inner washer
7 does not need to be removed (Figure 3).
5. To install the 12 blade, fit blade between the chip
deflectors
8 and onto the inner washer shoulder 9
(Figure 3 & 4). NOTE: Make sure the rotation arrow on
the blade matches the clockwise rotation arrow on the
lower guard.
To avoid injury, do not use a blade larger
or smaller than 12 diameter and 1 arbor.
6. Replace the outer washer
5 in the proper orientation,
and tighten blade bolt
4 finger tight. Press the arbor lock
and tighten blade bolt
4 securely, but do not overtighten.
7. Rotate cover plate
3 clockwise to original position.
Tighten the screw
2.
Never use saw without cover plate
securely in place. Lower guard will not
function properly.
8. Be sure the arbor lock is released so the blade turns
freely.
After installing a new blade, lower the
blade into the table slot and check for any
contact with the base or turn table structure. If blade
contacts table, seek authorized service.
Cutting Kerf Inserts
NOTE: New inserts need to be cut initially to provide blade
clearance. This should be done by carefully making a straight
cut through the insert.
Assembly
FIG. 2
FIG. 3
FIG. 4
1
3
3
2
5
4
6
5
4
6
9
7
2
9
8
WARNIN
G
!
WARNIN
G
!
WARNIN
G
!
WARNIN
G
!