RIDGID R4090 Operator's Manual page 27

OPERATION
TO MAKE A MITER CUT
See Figure 38.
Miter cuts are used for cutting outside and inside corners
on material, decorative chair rail, and base molding with the
material at any angle to the wheel other than 90°. Miter cuts
tend to "creep" during cutting. This can be controlled by
holding the workpiece securely against the miter guide.
 Using a marker or grease pencil, mark the area to be cut
on material.
 Set the miter guide to the desired setting, lock in place,
and tighten the lock knob.
 Place the material on the table and firmly against the miter
guide and fence.
 Make sure the material is clear of the cutting wheel before
turning on the saw.
 Turn the on/off switch to the ON position.
 Turn the flow adjustment valve to the ON position.
 Let the cutting wheel build up to full speed and wait for
the wheel to get wet before moving the material into the
wheel.
 Hold the material firmly against the miter guide and feed
the material into the cutting wheel.
 When the cut is made, turn the saw OFF. Wait for the
cutting wheel to come to a complete stop before remov-
ing any part of the material.
TO MAKE AN L-CUT
See Figure 39.
L-cuts are cuts that remove a piece of tile to fit in a corner,
around a cabinet, or a piece of molding and are made by
two separate cuts.
NOTE: Only overcut on the bottom or underneath side of
the material being cut.
 Using a marker or grease pencil, mark the area to be cut
on both sides of the material.
 Set the miter guide to the desired setting, lock in place,
and tighten the lock knob.
 Place the material on the table and firmly against the miter
guide and fence.
 Make sure the material is clear of the cutting wheel before
turning on the saw.
 Turn the on/off switch to the ON position.
 Turn the flow adjustment valve to the ON position.
 Let the cutting wheel build up to full speed and wait for
the wheel to get wet before moving the material into the
wheel.
 Hold the material firmly against the miter guide and feed
the material into the cutting wheel.
 Make the cut far enough into the material without over-
cutting.
 When the cut is made, turn the saw OFF. Wait for the
cutting wheel to come to a complete stop before remov-
ing any part of the material.
27 — English
Miter cut
l-cut
Fig. 38
Fig. 39