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Фрагмент инструкции
SPINDLE LOCK RUBBER BACKING PAD SANDING DISC LOCK NUT SPINDLE SPIN-ON WIRE BRUSH Operating Instructions "TRI-CONTROL" PADDLE SWITCH The "Lock-ON" feature, incorporated into the The “Tri-Control” Paddle Switch enables the paddle switch, is a convenience for long operator to control the switch functions of operations. "Lock-OFF", "ON/OFF" and "Lock-ON". TO LOCK SWITCH "ON": After paddle switch TO UNLOCK SWITCH has been activated push paddle lever AND TURN TOOL "ON": completely FORWARD and release paddle Push paddle lever lever. FORWARD (toward the TO SWITCH TOOL "OFF": Squeeze and spindle) then squeeze then release paddle lever. The switch is the paddle lever. spring loaded and will return to "OFF" position automatically. on paddle lever. The switch is spring loaded !WARNING Hold the tool with both hands and will return to "OFF" position while starting the tool, since automatically. torque from the motor can cause the tool to twist. -9 TO SWITCH TOOL "OFF": Release pressure BM 1609929H54 08-06 8/3/06 11:44 AM Page 10 Start the tool before applying to work and let switch “ON” and “OFF” while the tool is the tool come to full speed before contacting under load; this will greatly decrease the the workpiece. Lift the tool from the work switch life. before releasing the switch. DO NOT turn the MOTOR HOUSING RELEASE LEVER (Model 1894-6 only) Your tool is equipped with a motor housing release lever that will allow you to rotate the spindle in either direction 90°. To use this feature, pull release lever in direction of arrow to release housing, and rotate housing until it clicks into place. Grinding Operations SELECTING GRINDING WHEELS !WARNING Before using a grinding wheel, be certain that its maximum safe operating speed is not exceeded by the nameplate speed of the grinder. Do not exceed the recommended wheel diameter. DISC GRINDING WHEELS Grinding wheels should be carefully selected in order to use the grinder most efficiently. Wheels vary in type of abrasive, bond, hardness, grit size and structure. The correct type of wheel to use is determined by the job. Use disc grinding wheels for fast grinding of structural steel, heavy weld beads, steel casting, stainless steel and other ferrous metals. GRINDING TIPS Efficient grinding is achieved by controlling the pressure and keeping the angle between wheel and workpiece at 10° to 15°. If the wheel is flat, the tool is difficult to control. If the angle is too steep, the pressure is concentrated on a small area causing burning to the work surface. !WARNING Excessive or sudden pres sure on the wheel will slow grinding action and put dangerous stresses on the wheel. When grinding with a new wheel be certain to grind while pulling tool backwards until wheel becomes rounded on its edge. New wheels have sharp corners which tend to “bite” or cut into workpiece when pushing forward. Sanding Operations SELECTING SANDING DISC Sanding discs are made of extremely hard and sharp aluminum oxide grits, phenol-resin bonded to a sturdy fiber backing for fast heavy-duty service and long life. The discs vary as to size and spacing of the abrasive grits. OPEN COAT (type H) — used for soft materials and on paint or varnish. CLOSED COAT (type K) —used for metal, hardwood, stone, marble and other materials. Sanding discs range in grit from 16 (very coarse) to 180 (very fine). To obtain best results, select sanding discs carefully. Many jobs require the use of several grit sizes and at times both “open coat and closed coat” discs are required to get the job done faster. See chart for application examples. -10 BM 1609929H54 08-06 8/3/06 11:44 AM Page 11 Operation: Refinishing painted wood or metal surfaces. REMARKS GRIT To remove paint and to smooth surface irregularities. Coarse 16-24-30 To smooth the rough sanding. Medium 36-50-80 To remove scratches left by previous discs. Fine 100-120 To smooth surfaces for painting, polishing or waxing. Very Fine 150-180 SANDING TIPS For best results, tilt the Disc Sander at a 10° to 15° angle while sanding so that only about 1" of the surface around the edge of the disc contacts the work. If the disc (accessory) is held flat or the back edge of the disc comes in contact with the work, a violent thrust to the side may result. If sander is tilted too much, sanding action will be too great and a rough cut surface or gouging and snagging will result. Guide the Disc Sander with crosswise strokes. Be careful not to hold the sander in one spot too long. Do not use a circular motion, as this makes swirl marks. Test before use on scrap stock. Do not force or apply pressure when sanding. Use only the weight of the tool for pressure. Excess pressure actually slows the tool down. If faster stock removal is desired, change to a coarser grit disc. Remove gummy paint from metal with an “open coat” disc. Sand until sparks start to appear, then stop and change to a “closed coat” disc to remove any remaining paint. SANDING WOOD When sanding wood the direction of the dis...
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