Warning – Craftsman 137.21239 User Manual

Page 21

4. While holding the lower blade guard,

loosen the cover plate screw (2) with
a Phillips screwdriver. (Fig. K)

5. Rotate the cover plate (3) to expose

the arbor bolt (4). (Fig. K)

6. Place the blade end wrench over

the arbor bolt.

Fig. K

7. Locate the arbor lock (5) on the

motor. (Fig. L)

8. Press the arbor lock, holding it

in ﬁ rmly while turning the blade
clockwise. The arbor lock will then
engage and lock the arbor. Continue
to hold the arbor lock, while turning
the wrench clockwise to loosen the
arbor bolt.

Fig. L

9. Remove the arbor bolt (4), the arbor

collar (6), and the blade (7). Do not
remove the inner blade collar.
(Fig. M)

10.Raise the lower clear plastic blade

guard (1) to the upright position
(Fig. K) to remove the blade.

NOTE: Mounting hardware is not
included with this tool. Bolts, nuts,
washers and screws must be
purchased separately.

2. For portable use, place the

saw on a 3/4 in. thick piece
of plywood. Bolt the base

of the miter saw securely to the
plywood using the mounting holes on
the base. Use C-clamps to clamp
this mounting board to a stable work
surface at the worksite.

Fig. J

REMOVING OR INSTALLING THE
BLADE
Removing Blade (Fig. K, L and M)

●

To avoid injury from an accidental

start, make sure the switch is in
the OFF position and plug is not
connected to the power source
outlet.

●

Only use a 12-inch diameter blade.

1. Unplug the saw from the outlet
2. Raise the miter saw to the upright

position.

3. Raise the lower clear plastic blade

guard (1) to the uppermost position.
(Fig. K)

WARNING