Craftsman 315.115790 Operator's Manual page 14

PLUNGE CUTTING
See Figure 7.
 Mark the line of cut clearly.
 Choose a convenient starting point inside the area
to be cut out and place the tip of the blade over that
point.
 Rest front edge of base (shoe) assembly on work and
hold firmly in position.
 Depress the lock-off button, then pull switch trigger to
start the cutting action.
 With saw blade at full cutting speed, slowly tilt saw
downward until tip of blade starts cutting work.
 After blade penetrates work, tilt saw until blade is
perpendicular to the work.
OPERATION
METAL CUTTING
See Figure 8.
Metals such as sheet steel, pipe, steel rods, aluminum,
brass, and copper may be cut with the saw. Be careful
not to twist or bend the saw blade. Do not force. We
recommend using cutting oil when cutting most soft
metals and steel. Cutting oil will also keep blades cool,
increase cutting action, and prolong blade life.
Never use gasoline since normal sparking of motor could
ignite fumes. Clamp the work firmly and cut close to the
clamping point to eliminate any vibration of the work
being cut. When cutting conduit pipe or angle iron, clamp
work in a vise if possible and cut close to the vise. To
cut thin sheet material, "sandwich" the material between
hardboard or plywood and clamp the layers to eliminate
Fig. 7 vibration and material tearing.
14
Fig. 8