RIDGID R4210 Manual Del Operador página 30

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. Make sure the fence lock knob is tightened securely to
avoid interference with the saw head.
 Slide the saw head to its most rearward position and
tighten the slide lock knob securely.
 Pull out the lock pin and lift saw arm to its full height.
 Lift the miter lock lever and depress the detent release
button to release the miter table.
 Rotate the control arm until the scale indicator aligns with
the desired angle on the miter scale.
 Release the detent release button, then push the miter
lock lever down to secure the miter table.
 Loosen the bevel lock knob.
 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.
 Recheck miter angle setting. Make a test cut in scrap
material.
 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, sup-
port the opposite end of the workpiece with a roller
stand or with a work surface level with the saw table.
See Figure 42.
 Grasp the workpiece firmly with one hand and secure it
against the fence. Use the work clamp or a C-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.
 Align cutting line on the workpiece with the edge of saw
blade.
 Turn the LED switch on to project the blade shadow onto
the workpiece.
 Make a test cut in scrap material.
 Grasp the saw handle firmly. Turn the saw on and allow
several seconds 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.
30 - English
COMPOUND
MITER CUT
Fig. 38