Harbor Freight Tools 31810 User Manual - Page 6

3. The tool must be plugged into an 7. Make sure the extension cord is prop- appropriate outlet, properly installed erly wired and in good electrical con- and grounded in accordance with all dition. Always replace a damaged codes and ordinances. The plug and extension cord or have it repaired by outlet should look like those in the a qualified electrician before using it. preceding illustration. (See 3-Prong Plug and Outlet.) 8. Protect the extension cords from sharp objects, excessive heat, and Extension Cords damp or wet areas. 1. Grounded tools require a three wire extension cord. Double Insulated tools can use either a two or three wire extension cord. 2. As the distance from the supply outlet increases, you must use a heavier RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS* (120/240 VOLT) NAMEPLATE AMPERES (at full load) EXTENSION CORD LENGTH 25' 50' 75' 100' 150' gauge extension cord. Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in loss of power and possible tool damage. (See Table A.) 0 - 2.0 2.1 - 3.4 3.5 - 5.0 5.1 - 7.0 7.1 - 12.0 12.1 - 16.0 18 18 18 18 16 18 18 18 16 14 18 18 16 14 12 18 16 14 12 12 18 14 12 10 14 12 10 - - 3. The smaller the gauge number of the 16.1 - 20.0 12 10 - - - wire, the greater the capacity of the cord. For example, a 14 gauge cord can carry a higher current than a 16 TABLE A * Based on limiting the line voltage drop to five volts at 150% of the rated amperes. gauge cord. (See Table A.) Symbology 4. When using more than one exten- sion cord to make up the total length, Double Insulated make sure each cord contains at least the minimum wire size required. (See Table A.) Canadian Standards Association 5. If you are using one extension cord for more than one tool, add the nameplate amperes and use the sum to determine the required minimum cord size. (See Table A.) V~ A Underwriters Laboratories, Inc. Volts Alternating Current Amperes 6. If you are using an extension cord outdoors, make sure it is marked with n0 xxxx/min. No Load (RPM) Revolutions per Minute the suffix "W-A" ("W" in Canada) to indicate it is acceptable for outdoor use. SKU 31810 For technical questions, please call 1-800-444-3353. Page 6