Delta 31-552 User Manual download pdf (Page 11)

ABRASIVE BELTS - THEIR SELECTION AND USE

Delta supplies a wide range of belts for use on your Finishing Machine. These belts are recommended for a wide range

of work on wood, metals, plastics and other materials. However, when a large amount of production work of one kind

is to be done, it is best to call in a coated abrasive specialist for specific recommendations.

All materials may be worked on a dry belt. But for professional quality or for production work a low melting point grease

should be used for cooler cutting, better finish, and for longer belt life. Even coarse belts will "load" when grinding

aluminum dry, and so a lubricant should always be used for this material. To a varying degree, this is true of other non-

ferrous metals like soft brass and zinc.

A grease stick is often applied to the belt to prevent "loading" of the belt on softer materials especially aluminum. When

grinding steel or some kinds of plastic, the grease stick is often used to prevent over-heating of the work piece. Many

times a single belt is used for both stock removal and for finish, just by lubricating one half of the belt with light grease

for stock removal and the other side or half of the belt with a heavy grease for polishing to bring out a good finish. This

can be done only when the parts are very small and need not be moved across the face of the belt.

When an abrasive belt smaller than 6" is desired, the 6" belt can be split. This can be done by turning the belt inside

out and with a knife or other sharp instrument cut a slot in the belt at the desired width. Then proceed to tear the belt.

CAUTION: ONLY TEAR THE BELT A FEW INCHES AT A TIME ONE WAY THEN REVERSE THE TEARING ACTION.

THIS METHOD WILL REDUCE THE TENDENCY OF THE BELT TO UNRAVEL.

For certain applications, a mist coolant attachment (not supplied by Delta) will be helpful. If the use of a mist coolant

causes the Abrasive Belt to slip on the lower drive pulley, this can be corrected by using a "tire" which can be

homemade by wrapping the pulley with a piece of coated abrasive belt. The grit is, of course, turned to the outside and

cement should be used sparingly to avoid lumps under the "tire."

ACCESSORIES

A complete line of accessories is available from your Delta Supplier, Porter-Cable • Delta Factory Service Centers,

and Delta Authorized Service Stations. Please visit our Web Site

www.deltamachinery.com for a catalog or

for the name of your nearest supplier.

WARNING: Since accessories other than those offered by Delta have not been tested

with this product, use of such accessories could be hazardous. For

safest operation, only

Delta recommended accessories should be used with this product.

PARTS, SERVICE OR WARRANTY ASSISTANCE

All Delta Machines and accessories are manufactured to high quality standards and are serviced by a network of Porter-

Cable • Delta Factory Service Centers and Delta Authorized Service Stations. To obtain additional information regarding

your Delta quality product or to obtain parts, service, warranty assistance, or the location of the nearest service outlet,

please call 1-800-223-7278 (In Canada call 1-800-463-3582).

Two Year Limited Warranty

Delta will repair or replace, at its expense and at its option, any Delta machine, machine part, or machine accessory which

in normal use has proven to be defective in workmanship or material, provided that the customer returns the product

prepaid to a Delta factory service center or authorized service station with proof of purchase of the product within two

years and provides Delta with reasonable opportunity to verify the alleged defect by inspection. Delta may require that

electric motors be returned prepaid to a motor manufacturer’s authorized station for inspection and repair or replacement.

Delta will not be responsible for any asserted defect which has resulted from normal wear, misuse, abuse or repair or

alteration made or specifically authorized by anyone other than an authorized Delta service facility or representative. Under

no circumstances will Delta be liable for incidental or consequential damages resulting from defective products. This

warranty is Delta’s sole warranty and sets forth the customer’s exclusive remedy, with respect to defective products; all

other warranties, express or implied, whether of merchantability, fitness for purpose, or otherwise, are expressly

disclaimed by Delta.

Printed in U.S.A.

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Delta 31-552 User Manual Page 11

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