User manual DRILL DOCTOR 500

[. . . ] OPERATING INSTRUCTIONS & DRILL INFORMATION MODEL 750SP CONTENTS Warranty Congratulations Quick Steps Instructions Maintenance Quick Facts Replacement Parts Troubleshooting 1 2 3 4 7 8 9 10 US Patents D385567, & 4, 471, 581 5, 735, 732 & 5, 400, 546 other Patents Pending US DEPARTMENT OF LABOR Form Approved Occupational Safety and Health Administration OMB No. 44-R1367 IMPORTANT SAFETY INSTRUCTIONS REMEMBER, FOR YOUR OWN SAFETY, READ INSTRUCTION MANUAL BEFORE OPERATING TOOL. Never touch internal parts of the sharpener when the sharpener is on. The rotating diamond grinding wheel can cause injury. [. . . ] Look in to the back of the chucked drill. The chuck jaws around the drill bit should be in line. If not, turn the chuck knob counter clockwise to straighten (See Figure 18). NOTE: Too many rotations on small diameter bits will result in a negative rake angle. Example: 3/8" rotate (16-20) 180 degree turns, 1/8" rotate (4-6) and 3/32" (2-4). Fig. 18 Chuck jaws are inline Sharpening Masonry Drill Bits A. Set the point angle indicator to 135° (see Figure 2 on page 4). Set the alignment tube pointer to the masonry position. Complete Steps 2A and 2B on page 4. Fig. 19 NOTE: When aligning the masonry drill bit , the pawls are not used in the alignment Fig. Push the paddle back to the housing and insert the drill bit to the stop, then release the paddle. Disregard the position of the pawls. 2 o'clock D. Grasp the shank end of the drill bit and rotate it so that the right cutting lip is high in a 2 o'clock position (See Figure 19 and 20). Push the paddle back and remove the chuck from the tube. NOTE: The masonry drill bit may also require fewer rotations than similar diameter standard drill bits. 6 DRILL DOCTOR® MAINTENANCE MAINTENANCE Fig. 21 After sharpening many drill bits, the drill bit grinding dust will accumulate in the grinding compartment. Grinding particles will promote wear in the three tubes and chucks, so cleaning on a consistent basis can add life to your machine. Before any maintenance or cleaning is performed, be sure to unplug your Drill Doctor®. Cleaning The Drill Doctor ® Unplug the Drill Doctor®. With a dry cloth wipe the inside and outside of the three tubes to remove any grinding dust that may have accumulated. A standard 1 /" vacuum hose works equally well. To empty the drill bit grinding dust remove the black cover from the top of the machine. [. . . ] The two parallel lines formed by the split should have a separation of . 005 to . 012 of an inch on the chisel angle. Fig. I aligned the drill bit and sharpened it, but no material gets removed. You may have allowed the paddle to knock the drill back into the chuck. Carefully realign the drill in the alignment tube again. [. . . ]