Craftsman 315.212350 Operator's Manual page 26

TO MAKE A COMPOUND MITER CUT
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 interde-
pendent 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.
 Pull out the lock pin and lift saw arm to its full height.
 Loosen the miter lock handle.
 Lift the miter lock plate to disengage.
 Rotate the saw table until the pointer aligns with the
desired angle on the miter scale.
 Release the miter lock plate.
NOTE: You can quickly locate 0°, 15°, 22-1/2°, 31.62°,
and 45° left or right by releasing the miter lock plate
as you rotate the control arm. The miter lock plate will
seat itself in one of the positive stop notches, located
in miter table frame.
 Retighten the miter lock handle securely.
WARNING:
To avoid serious personal injury, always
tighten the miter lock handle securely before making
a cut. Failure to do so could result in movement of
the control arm or miter table while making a cut.
 Adjustments of the miter fence must be made to cor-
respond to the desired angle of the bevel cut prior to
tilting the saw arm. The fence is marked for 0°, 30°, or
45°. Loosen the fence screw on the miter fence, slide
the fence to the desired position, and retighten the
fence screw.
 The 45° triangle on the miter fence provides for the
maximum clearance required for adjusting the miter
saw's angle when making a bevel or compound cut.
 Loosen the bevel lock knob and move the saw arm to
the left or right to the desired bevel angle.
 Bevel angles can be set from 0˚ to 45˚.
 Once the saw arm has been set at the desired angle,
securely tighten the bevel lock knob.
OPERATION
 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. The concave
edge of a board could collapse on the blade at the end
of the cut, jamming the blade.
 When cutting long pieces of lumber or molding, sup-
port the opposite end of the stock with a roller stand or
with a work surface level with the saw table.
 Align the cutting line on the workpiece with the edge of
saw blade.
 Grasp the stock firmly with one hand and secure it
against the fence or use the optional work clamp or a
C-clamp to secure the workpiece when possible.
WARNING:
keep hands away from cutting area. Never perform
any cutting operation freehand (without holding
workpiece against the fence). The blade could grab
the workpiece if it slips or twists.
 Before turning on the saw, perform a dry run of the cut-
ting operation just to make sure that no problems will
occur when the cut is made.
 Grasp the saw handle firmly then squeeze the switch
trigger. 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 blade to stop
rotating before raising the blade out of workpiece. Wait
until the electric brake stops blade from turning before
removing the workpiece from miter table.
26
To avoid serious personal injury, always
COMPOUND
MITER CUT
Fig. 36