Global Machinery Company DB250SMS Saw User Manual


 
19
Compound mitre cut
A compound mitre cut
involves using a mitre angle
and a bevel angle at the
same time (fig. v). It is used
in making picture frames, to
cut mouldings, making boxes
with sloping sides and for roof framing. Always make a
test cut on a piece of scrap wood before cutting into the
good material.
Use the slide action when cutting wide workpieces.
1. Pull on the release knob (6) and lift the saw arm to its
full height.
2. Loosen the mitre lock (25).
3. Rotate the mitre table (21) until the pointer aligns with
the desired angle on the mitre scale (22).
4. Retighten the mitre lock (25).
WARNING. Be sure to tighten the mitre lock before making
a cut. Failure to do so could result in the table moving
during the cut, causing serious personal injury.
5. Loosen the bevel lock (16) and pull out the 0º bevel
adjuster (18) and move the saw arm (5) to the left or
right to the desired bevel angle (between 0º and 45º).
Tighten the bevel lock (16).
6. Place the workpiece flat on the table with one edge
securely against the fence (19). If the board is warped,
place the convex side against the fence. If the concave
side is placed against the fence, the board could break
and jam the blade.
7. When cutting long pieces of timber, support the opposite
end of the timber with the side bars (37), a roller stand
or a work surface that is level with the saw table.
8. Use the clamp assembly (10) to secure the workpiece
wherever possible.
9. It is possible to remove the clamp assembly (10) by
loosening the clamp assembly lock (11) and moving
it to the other side of the table. Make sure the clamp
assembly lock is tight before using the clamp.
10. Before turning on the saw, perform a dry run of the
cutting operation to check that there are no problems.
11. Hold the operating handle (7) firmly and squeeze
the switch trigger (24). Allow the blade to reach
maximum speed.
12. Press the release latch (36) and slowly lower the blade
into and through the workpiece.
13. Release the switch trigger (24) and allow the saw
blade to stop rotating before raising the blade out
of the workpiece. Wait until the blade stops before
removing the workpiece.
Adjusting the laser lines
The lower laser is factory set to emit a laser line along the
right-hand side of the blade. The upper laser is factory set
to emit a laser line to the left-hand side of the blade. This
upper laser can be adjusted by the operator to suit blades
of different kerf widths.
To adjust the position of the upper laser, proceed
as follows:
1. Remove the laser cover by
pulling it towards you.
2. Switch on the laser lights
with the on/off switch (2)
(fig. w).
3. Using a Phillips head
screwdriver (not supplied),
adjust the position of the
line from the upper laser
by turning the laser pitch
control (4) (fig. x).
4. Adjust until the left-hand
laser line is aligned with the
left-hand side of the blade.
5. Switch off the laser lights.
v
w
x