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INSTRUCTION MANUAL
Universal
Wet/Dry
Grinder
(Model 23-700)
DATED 6-7-96 PART NO. 1340208
©Delta International Machinery Corp. 1996
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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 possibil- ity of personal injury. However, if normal safety precautions are overlooked or ignored, personal injury to the operator may result. Safety equipment such as guards, push sticks, hold-downs, featherboards, goggles, dust masks
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ADDITIONAL SAFETY RULES FOR WET/DRY GRINDERS 1. IF YOU ARE NOT thoroughly familiar with the opera- these are worn. Grinding creates heat; don’t touch tion of the Wet/Dry Grinder, obtain advice from your ground portion of workpiece until you are sure workpiece supervisor, instructor or other qualified person. has cooled. 2. MAKE SURE the wheel guards and eye shields are 10. HOLD work firmly against tool rests. in place and are properly adjusted and tightened. 11. KEEP hands away from grinding whe
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ASSEMBLING AND ADJUSTING THE TOOL RESTS 1. Assemble the tool rest (A) Fig. 5, to the wheel guard using the lock knob screw (B), nut and washer. A B Fig. 5 2. The tool rest (A) Fig. 6, is adjustable so it can be positioned as close to the grinding wheel as possible A giving maximum support to the piece that is being ground, by loosening lock knob (B), moving tool rest (A) to the desired position and tightening lock knob (B). As the grinding wheel wears down to a smaller diameter, re- adjust the t
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ADJUSTING SPARK DEFLECTOR As the five inch grinding wheel (H) Fig. 9, wears down due to extended use, the spark deflector (J) should be adjusted downward with it, so it is always set close to the J grinding wheel for maximum operator safety. To adjust the spark deflector, loosen screw (K) Fig. 9, position the spark deflector (J) close to the surface of the H grinding wheel, and retighten screw (K). K Fig. 9 SLIDING ANGLE JIG A A sliding angle jig (A) Fig. 10, is supplied for use on the tool rest
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CONNECTING WET/DRY GRINDER TO POWER SOURCE POWER CONNECTIONS A separate electrical circuit should be used for your tools. 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 3-prong grounding type plugs and 3-pole receptacles which accept the tool’s plug. For distances up to 100 feet, use #12 wire. For distances up to 150 feet, use #10 wire. Have a certified electrician replace
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WATER LEVEL When using the 10 grinding wheel, there should always be enough water in the base (A) Fig. 15, of the grinder in order that one inch of the lower portion of the grinding wheel will be submerged in water. As water is absorbed into the grinding wheel, additional water must be added into the base. A Fig. 15 A drain screw (B) Fig. 16, is provided in the grinder base to remove the water. B Fig. 16 GRINDING WHEELS For best grinding results and to maintain good balance, always keep the whee
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SILICON CARBIDE DRESSING A GRINDING WHEEL When dressing a grinding wheel, use a suitable silicon GRINDING WHEEL carbide stick type dresser, as shown in Fig. 17. Bring the dresser forward until it just touches the high point of the face of the wheel and dress the wheel by moving the STICK dresser back and forth. Repeat this operation until the DRESSER face of the wheel is clean and the corners are square. TOOL REST Fig. 17 CHANGING GRINDING WHEELS A When changing the Catalog No. 23-702 5 grindin
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LUBRICATION A Occasionally lubricate the arbor shaft with light machine oil, through the oiler (A) Fig. 22, provided. To lubricate the worm gears (A) and (B) Fig. 23, remove the nameplate (C) and apply grease to the two gears (A) and (B) as shown. B C A Fig. 22 Fig. 23 OPERATION FIVE INCH DRY GRINDING WHEEL The five inch diameter aluminum oxide grinding wheel operates at 3450 RPM and is used for many grinding operations, such as pointing screwdrivers as shown in Fig. 24. Scissors, putty knives,
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TEN INCH WET GRINDING WHEEL The ten inch aluminum oxide grinding wheel operates at a slow speed of 70 RPM, which makes it suitable for honing cutting tools such as garden tools, chisels and sharpening axes, as shown in Fig. 26. During operation, the water level in the reservoir (A) Fig. 26, should be kept at a one inch depth. This will keep the wheel constantly wet while rotating and keep hard- A ened tools cool without damaging their temper. The large wheel also is used to remove burrs from too
