RIDGID R4222 Manual Del Operador página 28

OPERATION
TO COMPOUND MITER CUT
See Figure 38.
A compound miter cut is a cut made using a miter angle and
a bevel angle at the same time. This type of cut is used to
make picture frames, cut molding, make boxes with sloping
sides, and for certain roof framing cuts.
To make this type of cut the control arm on the miter table
must be rotated to the correct angle and the saw arm must
be tilted to the correct bevel angle. Care should always
be taken when making compound miter setups due to the
interaction of the two angle settings.
Adjustments of miter and bevel settings are interdependent
with one another. Each time you adjust the miter setting you
change the effect of the bevel setting. Also, each time you
adjust the bevel setting you change the effect of the miter
setting.
It may take several settings to obtain the desired cut. The
first angle setting should be checked after setting the second
angle, since adjusting the second angle affects the first.
Once the two correct settings for a particular cut have been
obtained, always make a test cut in scrap material before
making a finish cut in good material.
NOTE: It may be necessary to adjust or remove the sliding
miter fence to insure proper clearance prior to making the cut.
 Slide the saw head to its most rearward position and
tighten the slide lock knob securely.
 Raise saw arm to its full height.
 Lift the miter lock lever, then press the miter detent bypass
in all the way.
 Rotate the control arm until the pointer aligns with the
desired angle on the miter scale.
NOTE: You can quickly locate 0°, 15°, 22.5°, 31.6°, 45°,
60° and 67.5° left or right by pressing the miter detent
bypass button halfway as you rotate the control arm. The
control arm will seat itself in one of the indexed stops,
located in the miter table base.
 Push the miter lock lever down to lock the miter table.
 Loosen the bevel lock knob.
NOTE: Firmly grasp the "D" handle while loosening the
bevel lock knob to prevent the saw head from shifting
unexpectedly.
 Move the bevel detent lever to the detent engaged posi-
tion to select one of the preset bevel settings or place
the bevel detent lever in the detent disengaged position
to select any desired setting.
NOTE: Indexed bevel positions are located at 0°, 15°,
22.5°, 33.9°, and 45° left or right.
 Tighten the bevel lock knob.
 Place the workpiece flat on the miter table with one edge
securely against the fence. If the board is warped, place
the convex side against the fence. If the concave edge
of a board is placed against the fence, the board could
collapse on the blade at the end of the cut, jamming the
blade. See Figures 51 - 52.
 When cutting long pieces of lumber or molding, support
the opposite end of the stock with a roller stand or with
a work surface level with the saw table. See Figure 39.
 Turn the LED switch on.
 Lower the blade and align the cutting line on the
workpiece with the edge of saw blade or the blade
shadow.
 Grasp the stock firmly with one hand and secure it against
the fence. Use the work clamp, C-clamp, or other suitable
clamp to secure the workpiece when possible.
 Before turning on the saw, perform a dry run of the cut-
ting operation to make sure that no problems will occur
when the cut is made.
 Grasp the saw handle firmly. Depress the trigger lockout
lever and squeeze the switch trigger. Allow several sec-
onds for the blade to reach maximum speed.
 Slowly lower the blade into and through the workpiece.
 Release the switch trigger and allow the saw blade to
stop rotating before raising the blade out of workpiece
and removing the workpiece from the miter table.
28 - English
COMPOUND MITER CUT
Fig. 38