A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless otherwise indicated elsewhere in this manual. • USE OF ACCESSORIES AND ATTACHMENTS. The use of any accessory or attachment not recommended for use with this appliance could be hazardous. Note: Refer to the accessory section of this manual for further details. • EXTENSION CORDS. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized extension cord will cause a drop in line voltage resulting in loss of power and overheating. The table below shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord. To reduce the risk of disconnection of the appliance from the extension cord during operation, use the extension cord retainer described in this manual. Minimum Gage for Cord Sets Volts Total Length of Cord in Feet 120V 0-25 26-50 51-100 101-150 (0-7,6m) (7,6-15,2m) (15,2-30,4m) (30,4-45,7m) Ampere Rating More Not more American Wire Gage Than Than 0 -6 18 16 16 14 6 -10 18 16 14 12 10 -12 16 16 14 12 12 -16 14 12 Not Recommended WARNING: OUTDOOR USE EXTENSION CORDS To reduce the risk of electric shock, use only with an extension cord intended for outdoor use, such as an extension cord of type SW-A, SOW-A, STW-A, STOW-A, SJW-A, SJOW-A, SJTW-A, or SJTOW-A. • REPAIRS AND SERVICE. Repairs, maintenance and any adjustments not specified in this manual should be performed by Black & Decker authorized service centers or other qualified service organizations, always using identical replacement parts. IMPORTANT WARNINGS FOR STRING TRIMMERS 1. Use the proper size and type of cutting line. Do not use metal wire, rope or the like. Do not use cutting line heavier than that recommended by the manufacturer. See the accessory section of this manual for more detailed information about the proper cutting line to use. 2. Keep the cutting line trimmed to the proper length (done automatically by the appliance). Make sure that the guard is firmly in place, in working order and positioned between yourself and the cutting line. 3. Wear long pants and substantial footwear to protect yourself from injury caused by flying debris. This is especially important when edging with the appliance. SAFETY WARNINGS AND INSTRUCTIONS: POLARIZED PLUGS To reduce the risk of electric shock, this equipment has a polarized plug (one blade is wider than the other). This equipment must be used with a suitable polarized 2 wire or 3 wire extension cord. Polarized connections will fit together only one way. Make sure that the receptacle end of the extension cord has large and small blade slot widths. If the plug does not fit fully into the extension cord, reverse the plug. If it still does not fit, obtain a suitable extension cord. If the extension cord does not fit fully into the outlet, contact a qualified electrician to install the proper outlet. Do not change the tool plug or extension cord in any way. 21 3 4 5 6 (10° TO 30°) (10° A 30°) (10° A 30°) 7 8 CAUTION: ALWAYS WEAR EYE PROTECTION. CAUTION: Inspect area to be trimmed and remove any wire, cord, or string-like objects which could become entangled in the rotating line or spool. Be particularly careful to avoid any wire which might be bent outwardly into the path of the tool, such as barbs at the base of a chain link fence. 1. Angle unit as shown in figure 7. 2. Slowly swing trimmer side-to-side as shown in figure 8. 3. To convert for maintenance edging, turn off the tool. Holding the trimmer (as shown in figure 9) with one hand by the auxiliary handle, grasp the trimmer head collar, push in direction of arrow and rotate the trimmer head clockwise (when viewed from the switch end) until it stops, (half turn), release your hand. The tool is locked in the edger position. 4. To operate as a maintenance edger, position trimmer above sidewalk as shown in figure 10. 5. Return to trimming position by turning the tool off, pushing in direction of arrow and rotating the trimmer head counter clockwise until it stops. RELOADING LINE ST4500 USE ONLY .065" (1.65mm) DIAMETER NYLON MONOFILAMENT LINE. Heavier line will overload the motor and cause overheating. This line is available at your local dealer or authorized service center. Do not use fishing line or other lines that are not recommended. 1. Unplug extension cord at trimmer. 2. Remove the bump cap by pulling up while depressing the two release tabs on the sides of the hub at the points shown in figure 11. NOTE: It may be necessary to pull up on the cap while depressing the release tabs one side at a time. 3. Remove any broken cutting line, wrap the remaining line tight and reinsert spool into hub as follows. a.Wind the line tight enough so that it is all below the edges of the flanges on the spool. If it extends past ...