(Model 31-340) PART NO. 902120 (0112) Copyright © 2001 Delta Machinery To learn more about DELTA MACHINERY visit our website at: www.deltamachinery.com. For Parts, Service, Warranty or other Assistance, please call ESPAÑOL: PÁGINA 19 1-800-223-7278 (In Canada call 1-800-463-3582).
GENERAL SAFETY RULES Woodworking can be dangerous if safe and proper operating procedures are not followed. As with all machinery, there are certain hazards involved with the operation of the product. Using the machine with respect and caution will considerably lessen the possibility of personal injury. However, if normal safety precautions are overlooked or ignored, personal injury to the operator may result.
ADDITIONAL SAFETY RULES FOR BELT / DISC SANDERS WARNING: FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS PERSONAL INJURY. 15. DO NOT sand pieces of material that are too small to be safely supported. 1. DO NOT OPERATE YOUR MACHINE UNTIL IT IS COMPLETELY ASSEMBLED AND INSTALLED ACCORDING TO THE INSTRUCTIONS. 16. AVOID awkward hand positions where a sudden slip could cause a hand to move into the sanding belt or disc. 2.
POWER CONNECTIONS A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should be protected with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have 3prong grounding type plugs and matching receptacle which will accept the machine’s plug.
EXTENSION CORDS Use proper extension cords. Make sure your extension cord is in good condition and is a 3-wire extension cord which has a 3-prong grounding type plug and matching receptacle which will accept the machine’s plug. When using an extension cord, be sure to use one heavy enough to carry the current of the machine. An undersized cord will cause a drop in line voltage, resulting in loss of power and overheating. Fig. D, shows the correct gauge to use depending on the cord length.
ASSEMBLY WARNING: FOR YOUR OWN SAFETY, DO NOT CONNECT THE MACHINE TO THE POWER SOURCE UNTIL THE MACHINE IS COMPLETELY ASSEMBLED AND YOU READ AND UNDERSTAND THE ENTIRE INSTRUCTION MANUAL. ASSEMBLING BELT UNIT TO BASE 1. Place a 10mm lockwasher (D) Fig. 1, and a 10mm flat washer (E) onto a M10x20mm hex socket head screw (A) and insert the screw up through the hole (B) in the base. Thread the screw into the tapped hole (C) in the bottom of the belt unit, repeat this process for the remaining hole.
ASSEMBLING GUARD FOR SANDING DISC AND BELT AND PULLEYS A D 1. DISCONNECT MACHINE FROM POWER SOURCE 2. Position the guard (A) Fig. 5, in place on the disc unit frame and fasten in place using the two M4X10mm cheese head screws (B) and (C) and two 3/16" flat washers. NOTE: Access to screw (C) is through hole (D) in top of guard. Do not completely tighten screws (B) and (C) at this time as the guard must be adjusted to sanding disc plate. C B Fig. 5 G E Fig. 6 3. Assemble the inside guard (E) Fig.
ASSEMBLING SANDING DISC PLATE TO MOTOR SHAFT C 1. DISCONNECT MACHINE FROM POWER SOURCE. D B 2. Assemble the sanding disc plate (A) Fig. 9, to the motor shaft with the key (B) in the motor shaft, engaged with the keyway (C) in the hub of the sanding disc. 3. Rotate the sanding disc until the set screw (D) Fig. 9, is in the up position and tighten set screw (D) Fig. 9, using wrench (E) Fig. 10, through the hole (F) in top of guard assembly. A Fig. 9 4. Adjust the disc guard so that the lip (G) Fig.
ASSEMBLING SANDING DISC TABLE A C 1. DISCONNECT MACHINE FROM POWER SOURCE. D 2. Two clamp handles are supplied with your machine, one for the belt sander table and one for the disc sander table. Disassemble both handles by unscrewing and removing screw (A), spring (B), and handle (C) from locking stud (D), as shown in Fig. 13. A B C D Fig. 13 3. Position the disc table (E) Fig.
ASSEMBLING BELT SANDER TABLE 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. Position the table assembly (A) Fig. 17, in position on the belt sander frame and using locking stud (B), from handle assembly, and flat washer (C), thread locking stud (B) into threaded hole in casting to hold table assembly in place, as shown. A C B Fig. 17 3. Assemble handle (D) Fig. 18, to locking stud and fasten with screw (E) and spring. 4. NOTE: The locking handle (D) Fig.
TRACKING THE SANDING BELT B The belt tracking adjustment is set at the factory so that the belt (A) Fig. 23, will run true on the pulleys. If, however, the belt (A) should lead to one side or the other on the pulleys, an adjustment can be made by turning the tracking knob (B). Turning the knob (B) clockwise will move the belt to the right when facing the sander. Turning the knob (B) counterclockwise will move the belt to the left. THIS ADJUSTMENT IS USUALLY VERY SLIGHT. A Fig.
The table can be tilted 45 degrees to the front, as shown in Fig. 27, by loosening lock lever (B). Using a combination square (E) check to see if the table is at 45 degrees to the belt and tighten lock lever (B). WARNING: TO AVOID TRAPPING THE WORK OR FINGERS BETWEEN THE TABLE AND SANDING BELT, THE TABLE EDGE (C) SHOULD BE POSITIONED A MAXIMUM OF 1/16 INCH FROM THE SANDING BELT (D) WHEN THE TABLE IS TILTED. D E C Fig. 27 DISC TABLE ADJUSTMENTS The disc table (A) Fig.
REMOVING AND INSTALLING ABRASIVE BELTS A B 1. DISCONNECT MACHINE FROM POWER SOURCE. 2. Unscrew and remove the two knobs (A) Fig. 31, and remove the side cover (B) from the belt unit. 3. Press down on the tracking knob to release belt tension and remove belt (C) Fig. 32, from the three pulleys (D), as shown. 4. Install new 1" x 42" belt and replace side cover. Check belt tracking by referring to the section “TRACKING THE SANDING BELT,” and adjust if necessary.
TYPICAL OPERATIONS WARNING: THE USE OF ATTACHMENTS AND ACCESSORIES NOT RECOMMENDED BY DELTA MAY RESULT IN RISK OF INJURIES. The following are just some of the many operations that can be performed with your Delta 1" Belt/8" Disc Sander. Sharpening a cold chisel on the belt unit with the table tilted. Fig. 35 Sanding aluminum on the disc unit with the table tilted and using the miter gage as a guide. NOTE: Always sand on the left (downward) side of the sanding disc, as shown.
Polishing using the Delta accessory Felt Belt in place of the sanding belt. Fig. 39 Sanding in tight areas with the sanding belt. Fig. 40 Inside curves can be sanded on the top sanding wheel with the side cover removed. Fig.
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.
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