Assessments - 3, GPA: 4
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Lower vise lever then tighten vise on work by using crank (see Figure 5). 30 15 FIG. 3 WRENCH FENCE FENCE BOLTS VISE 30 15 15 0 45 30 FIG. 4 383823-01/DW870 5/3/02 1:33 PM Page 7 383823-01/DW870 5/3/02 1:33 PM Page 8 English To Adjust Vise Stop CUTTING ANGLE Use the wrench to loosen the two hex bolts (Fig. 3). (Do not remove the bolts). The fence can be rotated in either direction. Securely tighten both the bolts before use. Switch To start the tool, FIG. 5 depress the trigger switch shown in Figure 2. To turn the tool off, release the trigger switch. Keep hands and material from wheel until it has coasted to a stop. Removal and Installation of Wheels 1. Be sure tool is disconnected from power supply. 2. Push in wheel lock lever (Figure 6) and rotate wheel by hand until wheel lock lever engages slot in inside flange to lock wheel. Loosen the bolt counterclockwise in the center of the abrasive wheel with the 8 mm hex wrench found in the holder in the base. Bolt has right hand thread. 3. Remove the bolt, washer, outside flange, adapter and old wheel (Fig. 10). 4. Install the new abrasive wheel by reversing the above steps. Make sure the adapter is on the shaft and centered on the wheel. 5. Do not over tighten bolt. DO NOT MAKE ANY ADJUSTMENT WHILE THE WHEEL IS IN MOTION. DO NOT MAKE ANY ADJUSTMENT WHILE CHOP SAW IS PLUGGED INTO POWER SUPPLY. WARNING: CHECK THE WORK SURFACE THAT THE CHOP SAW RESTS ON WHEN REPLACING WITH WHEEL. IT IS POSSIBLE THAT THE WHEEL MAY CONTACT ANY ITEMS OR STRUCTURE THAT EXTENDS ABOVE WORK SURFACE (UNDER THE BASE) WHEN THE ARM IS FULLY LOWERED. Procedure For Permanent Mounting 1. Drill four holes, 5/16" diameter minimum, through the work surface (Fig. 7). 2. Remove screws from feet. 3. Insert 1/4-20 screws through underside of work surface, through feet, into holes in tool base. The proper screw length is equal to the thickness of the work surface plus 1 inch (25 mm). CRADLE MOUNTING 1. Cut two boards approximately 20" long x 2" high x 4" wide. 2. Place chop saw at desired work location. 3. Place boards tightly along side, and nail to work surface, (Figure 8). FIG. 6 GEAR SHAFT FLANGE, INSIDE ABRASIVE WHEEL ADAPTER FLANGE, OUTSIDE WASHER HEX HEAD BOLT 5 383823-01/DW870 5/3/02 1:33 PM Page 9 FIG. 7 FIG. 9 FIG. 8 16-3/8" (416 mm) 8-1/2" NAIL (216 mm) 2"-3" STOPPER PIN 20" 4" Motor Brush Inspection and Replacement Be sure tool is unplugged before inspecting brushes. Brushes should be regularly inspected for wear. To inspect brushes, unscrew the two end cap screws and remove end cap. To remove each brush, first unplug the shunt wire terminal connection. Then carefully back the brush spring out of the brush box and remove brush. Brushes should slide freely in brush box. If brushes are worn down to .3” they should be replaced (see Figure 9). To reinstall each brush carefully back the spring out of the brush box, insert the brush and return the spring making sure it is pressing on the brush and not touching the brush box. Then replace the end cap and two screws. BRUSH WEAR LINE 0.3" 7.62 mm Operation Tips for More Accurate Cuts • Allow the wheel to do the cutting. Excessive force will cause the wheel to glaze reducing cutting efficiency and/or to deflect causing inaccurate cuts. • Adjust fence angle. (Figure 3) • Make sure material is laying flat across base. • Properly clamp material to avoid movement and vibration. Cleaning Blowing dust and grit out of the main housing by means of an air hose is recommended and may be done as often as dirt is seen collecting in and around the air vents. Accessories Recommended accessories for use with your tool are available at extra cost from your local dealer or authorized service center. If you need assistance in locating any accessory for your tool, contact: DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286 CAUTION: The use of any other accessory not recommended for use with this tool could be hazardous. Important To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by authorized service centers or other qualified service organizations, always using identical English 6 383823-01/DW870 5/3/02 1:33 PM Page 10 English replacement parts. ALWAYS WEAR SAFETY GLASSES. ALWAYS SECURE WORK IN VISE. DISCONNECT FROM POWER SUPPLY BEFORE CHANGING WHEEL. Lubrication Closed-type, grease-sealed ball bearings are used bearings have sufficient lubrication packed in them at the factory to last the life of the chop saw. Gears should be relubricated every 60 to 90 days, depending use. This lubrication should only be attempted by experienced tool repair persons like the mechanics at DEWALT service centers. The gear case should be wiped clean and 1/2 oz. (16 grams) of DEWALT Lubricant Part No. 790206 (6 oz. tube) placed in the gear case. Full Warranty DEWALT heavy duty industrial tools are warranted for one year from date of purchase. We will repair, without charge, any defects due to faulty materials or workmansh...