Delta 20-950 Manuel D'utilisation page 17

DRILLINg WOOD
Twist drills, usually intended for metal drilling, can also be used for boring holes in wood. However, machine spur bits
are generally preferred for working in wood. These bits cut a flat-bottom hole and are designed for removal of wood
chips. Do not use hand bits (screw tip). At drill press speeds, they lift and rotate the workpiece.
For through boring, align the workpiece so that the bit will go through the center hole in the table. Scribe a vertical line
on the front of the column and a matching mark on the table bracket and the drill press head, so that the table and
drill press head can be clamped in the center position at any height.
Feed the workpiece slowly when the bit is close to cutting through the wood to prevent splintering the bottom face.
Use a scrap piece of wood as a base block under the work to reduce splintering and protects the point of the bit.
DRILLINg METAL
Use clamps to hold metal workpieces. Never hold the workpiece in your bare hand. The drill bit can seize the work at
any time, especially when breaking through the workpiece and cause damage to the machine or injury to you. The drill
bit will break if the workpiece strikes the column.
Clamp the workpiece firmly. Any tilting, twisting, or shifting results not only in a rough hole, but also in bit breakage.
For flat work, lay the workpiece on a wooden base and clamp it firmly against the table to prevent it from turning. If
the workpiece is of irregular shape and cannot lay flat on the table, securely block or clamp it.
For assistance with your machine, visit our website at www.deltaportercable.com for a list of service centers or call the
DELTA Machinery help line at 1-800-223-7278 (In Canada call 1-800-463-3582).
To reduce the risk of injury, turn unit off and disconnect it from power source before installing and
removing accessories, before adjusting or when making repairs. An accidental start-up can cause injury.
KEEP MACHINE CLEAN
Periodically blow out all air passages with dry compressed air. All plastic parts should be cleaned with a soft damp cloth.
NEVER use solvents to clean plastic parts. They could possibly dissolve or otherwise damage the material.
Wear certified safety equipment for eye, hearing and respiratory protection while using compressed air
FAILURE TO START
Should your machine fail to start, check to make sure the prongs on the cord plug are making good contact in the outlet.
Also, check for blown fuses or open circuit breakers in the line.
LUBRICATION & RUST PROTECTION
Apply household floor paste wax to the machine table, extension table or other work surface weekly. Or use a
commercially available protective product designed for this purpose. Follow the manufacturer's instructions for use and
safety.
To clean cast iron tables of rust, you will need the following materials: a medium sized scouring pad, a can of spray
lubricant and a can of degreaser. Apply the spray lubricant and polish the table surface with the scouring pad. Degrease
the table, then apply the protective product as described above.
All manuals and user guides at all-guides.com
TROUBLESHOOTINg
MAINTENANCE
17