Can’t find my owners manual. How do I change the blade. Bolt hits on a guard that covers the arbor. On a DW713 combination saw.

Removing the Blade
1. Unplug the saw.
2. Raise the arm to the upper position and raise the lower guard as far as possible.
3. Loosen, but do not remove guard bracket screw until the bracket can be raised far
enough to access the blade screw. Lower guard will remain raised due to the position
of the guard bracket screw.
4. Depress the spindle lock button (Fig. 3) while carefully rotating the saw blade by hand
until the lock engages
5. Keeping the button depressed, use the other hand and
the wrench provided to loosen the blade screw. (Turn
clockwise, left-hand threads.)
6. Remove the blade screw, outer blade clamp, and
blade. The inner blade clamp may be left on the
spindle.
Installing a Blade
1. Unplug the saw.
2. With the arm raised, the lower guard held open and the
guard bracket, place the blade on the spindle against
the inner blade clamp with the teeth at the bottom of
the blade pointing toward the back of the saw.
3. Assemble the outer blade clamp onto the spindle.
4. Install the blade screw and, engaging the spindle lock,
tighten the screw firmly with wrench provided. (Turn
counterclockwise, left-hand threads.)
5. Return the guard bracket to its original position and
firmly tighten the guard bracket screw to hold bracket
in place.
WARNING:
• The guard bracket must be returned
to its original position and the
screw tightened before activating
the saw.
• Failure to do so may allow the guard
to contact the spinning saw blade
resulting in damage to the saw and
severe personal injury
you can download a manual at: http://www.dewalt.com/tools/machinery-miter-saws-dw713.aspx