Delta 20-950 Instruction Manual download pdf (Page 16)

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.

TROUBLESHOOTING

For assistance with your machine, visit our website at www.deltamachinery.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).

MAINTENANCE

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.

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 sheet of medium Scotch-Brite™ Blending Hand

Pad, a can of WD-40

and a can of degreaser. Apply the WD-40 and polish the table surface with the Scotch-Brite pad.

Degrease the table, then apply the protective product as described above.

Wear certified safety equipment for eye, hearing and respiratory protection while using compressed air.

SERVICE AND REPAIRS

All quality tools will eventually require servicing and/or replacement of parts. For information about Delta Machinery, its factory-

owned branches, or an Authorized Warranty Service Center, visit our website at www.deltamachinery.com or call our Customer

Care Center at 1-800-223-7278. All repairs made by our service centers are fully guaranteed against defective material and

workmanship. We cannot guarantee repairs made or attempted by others.

You can also write to us for information at Delta Machinery, 4825 Highway 45 North, Jackson, Tennessee 38305 - Attention:

Product Service. Be sure to include all of the information shown on the nameplate of your tool (model number, type, serial number,

etc.)

SERVICE

REPLACEMENT PARTS

Use only identical replacement parts. For a parts list or to order parts, visit our website at

servicenet.deltamachinery.com.

You

can also order parts from your nearest factory-owned branch, or by calling our Customer Care Center at 1-800-223-7278 to

receive personalized support from highly-trained technicians.

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Delta 20-950 Instruction Manual Page 16

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