If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord. Table 1: Minimum gage for cord Ampere Rating Volts Total length of cord in feet 120 V 25 ft. 50 ft. 100 ft. 150 ft. More Than Not More Than AWG 0 6 18 16 16 14 6 10 18 16 14 12 10 12 16 16 14 12 12 16 14 12 Not Recommended SPECIFIC SAFETY RULES USB046-3 DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to sander safety rules. If you use this tool unsafely or incorrectly, you can suffer serious personal injury. 1. Accessories must be rated for at least the speed recommended on the tool warning label. Wheels and other accessories running over rated speed can fly apart and cause injury. 2. Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will make exposed metal parts of the tool “live” and shock the operator. 3. Always use safety glasses or goggles. Ordinary eye or sun glasses are NOT safety glasses. 4. Check the backing pad carefully for cracks, damage or deformity before operation. Replace cracked, damaged or deformed pad immediately. 5. NEVER use tool with wood cutting blades or other sawblades. Such blades when used on a sander frequently kick and cause loss of control leading to personal injury. 6. Hold the tool firmly. 7. Keep hands away from rotating parts. 8. Make sure the abrasive disc is not contacting the workpiece before the switch is turned on. 9. When sanding metal surfaces, watch out for flying sparks. Hold the tool so that sparks fly away from you and other persons or flammable materials. 10. Do not leave the tool running. Operate the tool only when hand-held. 11. Do not touch the workpiece immediately after operation; it may be extremely hot and could burn your skin. 12. Check that the workpiece is properly supported. 13. Pay attention that the wheel continues to rotate after the tool is switched off. 14. This tool has not been waterproofed, so do not use water on the workpiece surface. 15. Ventilate your work area adequately when you perform sanding operations. 16. Use of this tool to sand some products, paints and wood could expose user to dust containing hazardous substances. Use appropriate respiratory protection. SAVE THESE INSTRUCTIONS WARNING: MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury. FUNCTIONAL DESCRIPTION FUNCTIONAL DESCRIPTION 1 2 1. Lock button 2. Switch trigger ASSEMBLY 003410 1 1. Side grip CAUTION: • Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool. Switch action CAUTION: • Before plugging in the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released. • Switch can be locked in “ON” position for ease of operator comfort during extended use. Apply caution when locking tool in “ON” position and maintain firm grasp on tool. To start the tool, simply pull the switch trigger. Release the switch trigger to stop. For continuous operation, pull the switch trigger and then push in the lock button. To stop the tool from the locked position, pull the switch trigger fully, then release it. CAUTION: • Always be sure that the tool is switched off and unplugged before carrying out any work on the tool. Installing side grip (auxiliary handle) CAUTION: • Always be sure that the side grip is installed securely before operation. Screw the side grip on the tool securely. 7 Installing or removing abrasive disc Mount the rubber pad onto the spindle. Fit the abrasive disc on the rubber pad and screw the lock nut onto the spindle. To tighten the lock nut, hold the spindle with the wrench so that it cannot revolve, then use the lock nut wrench and securely tighten clockwise. To remove the disc, follow the installation procedure in reverse. OPERATION Sanding operation CAUTION: • Always wear safety goggles or a face shield during operation. • Never run the tool without the abrasive disc. You may seriously damage the pad. Hold the tool firmly. Turn the tool on and then apply the abrasive disc to the workpiece. In general, keep the abrasive disc at an angle of about 15 degrees to the workpiece surface. Apply slight pressure only. Excessive pressure will result in poor performance and premature wear to abrasive disc. MAINTENANCE CAUTION: • Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. 1. Lock nut 2. Abrasive disc 3. Rubber pad 4. Spindle 1 2 3 4 003414 1. Lock nut wrench 2. Wrench 1 2 003416 15 003419 001145 1 001145 1 1. Limit mark 003422 1 2 1. Screwdriver 2. Brush holder cap ACCESSORIES Replacing carbon brushes Remove and check the carbon brushes regularly. Replace when they wear down to the limit mark. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replac...