Craftsman 137.21241 - Manual (Page 15)

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Fig. I
6. Locate the arbor lock (5) on the motor, below
the switch handle. (Fig. J)
7. Press the arbor lock, holding it in firmly
while turning the blade wrench clockwise.
The arbor lock will engage after turning the
wrench. Continue to hold the arbor lock in to
keep it engaged, while turning the wrench
clockwise to loosen the arbor bolt.
Fig. J
1
2
3
4
8. Remove the arbor bolt (8), outer blade collar
(6), and the blade (7). Do not remove the
inner blade collar. (Fig. K)
NOTE: Pay attention to the pieces removed,
noting their position and direction they face.
Wipe the blade collars clean of any sawdust
before installing the new blade.
Fig. K
5
6
7
8
8
6
7
Installing Blade (Fig. I, J, K)
1. Install a 10 in. blade with a 5/8 in. arbor
making sure the rotation arrow on the blade
matches the clockwise rotation arrow on the
upper guard, and the blade teeth are pointing
downward.
2. Place the blade collar (6) against the blade
and on the arbor. Thread the arbor bolt (4)
onto the arbor in a counterclockwise direction.
(Fig. I) IMPORTANT: Make sure the flats of
the blade collars are engaged with the flats on
the arbor shaft. Also, the flat side of the blade
collar must be placed against the blade.
3. Place the blade wrench on the arbor bolt.
4. Press the arbor lock (5), holding it in firmly
while turning the blade counterclockwise.
When arbor lock engages, continue to press it
in while tightening the arbor bolt securely.
(Fig. J)
5. Rotate the cover plate (3) back to its original
position until the slot in the cover plate
engages with the cover plate screw (2).
While holding the lower blade guard, tighten
the screw with a Phillips screwdriver. (Fig. I)
NOTE: The lower blade guard must be raised
to the upright position to access the cover
plate screw.
6. Lower the blade guard (1) and verify that the
operation of the guard does not bind or stick.
7. Be sure the arbor lock is released so the
blade turns freely.
● To avoid injury, never use the saw
without the cover plate secure in place. It
keeps the arbor bolt from falling out if it
accidentally loosens, and helps prevent
the spinning blade from coming off the
saw.
● Make sure the collars are clean and
properly arranged. Lower the blade into
the table and check for any contact with
the metal base or the turn table.
WARNING
!