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Avoid breathing concentrations of these fumes and gases. Use adequate ventilation when welding. See ANSI Z49.1, "Safety in Welding and Cutting", published by the American Welding Society. LFA 3.1 & 4.1 FUME EXTRACTION ARMS DEEIIZK 1 ELECTRIC I C-1 MAINTENANCE C-1 ROUTINE MAINTENANCE Every 3 months, check the integrity of the outside of the extraction arm and clean it with a non-agressive detergent. Every 12 months: • Check the flexible hoses and rubber seals for cracks or damage; replace if necessary. • Check the inside of the extraction arm and clean it thoroughly. • Check and lubricate the hinge points with lubricating oil. (See Fig. 10 C) • Check and lubricate the steel cable near the balance wheel with lubricating grease. (See Fig. 10 B) • Check the steel cables for wear. • Check and adjust the friction setting of the hood, middle, and base hinges. (See Fig. 10 A, Fig. 11) • Check the balance construction of the extraction arm. (See Fig. 10 A) • Check the operation of the airflow throttle valve. Fig. 11 Fig. 10 D-1 TROUBLESHOOTING D-1 Observe all Safety Guidelines detailed throughout this manual SYMPTOM PROBLEM SOLUTION Extraction arm creaks or squeaks. Insufficient lubrication. Lubricate hinge points as described in the Maintenance Section. Poor suction. Leakage. Fan outlet blocked. Air path in arm blocked. Filter blocked (if used). Spark arrester blocked (if used). Blower fan blocked. Fan seal damaged. Check hose connections and integrity Remove obstructions from fan outlet. Remove obstructions from arm. Check maintenance indicator and replace filter if necessary. Clean the spark arrester. Clean excess fume or spatter from fan. Check or replace sealing material of fan. For troubleshooting Fan or Filter problems, refer to the corresponding manual. A CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. LFA 3.1 & 4.1 FUME EXTRACTION ARMS |i ELECTRIC 1 NOTES X-TRACTOR 1GC II UW-lUk ELECTRIC 1 Now Available...12th Edition The Procedure Handbook of Arc Welding With over 500,000 copies of previous editions published since 1933, the Procedure Handbook is considered by many to be the “Bible” of the arc welding industry. This printing will go fast so don’t delay. Place your order now using the coupon below. The hardbound book contains over 750 pages of welding information, techniques and procedures. Much of this material has never been included in any other book. A must for all welders, supervisors, engineers and designers. Many welding instructors will want to use the book as a reference for all students by taking advantage of the low quantity discount prices which include shipping by 4th class parcel post. $15.00 postage paid U.S.A. Mainland How To Read Shop Drawings The book contains the latest information and application data on the American Welding Society Standard Welding Symbols. Detailed discussion tells how engineers and draftsmen use the “short-cut” language of symbols to pass on assembly and welding information to shop personnel. New Lessons in Arc Welding Lessons, simply written, cover manipulatory techniques; machine and electrode characteristics; related subjects, such as distortion; and supplemental information on arc welding applications, speeds and costs. Practice materials, exercises, questions and answers are suggested for each lesson. 528 pages, well illustrated, 6” x 9” size, bound in simulated, gold embossed leather. $5.00 postage paid U.S.A. Mainland Need Welding Training? The Lincoln Electric Company operates the oldest and most respected Arc Welding School in the United States at its corporate headquarters in Cleveland, Ohio. Over 100,000 students have graduated. Tuition is low and the training is “hands on” For details write: Lincoln Welding School 22801 St. Clair Ave. Cleveland, Ohio 44117-1199. Practical exercises and examples develop the reader’s ability to visualize mechanically drawn objects as they will appear in their assembled form. 187 pages with more than 100 illustrations. Size 8-1/2” x 11” Durable, cloth-covered board binding. $4.50 postage paid U.S.A. Mainland and ask for bulletin ED-80 or call 216-383-2259 and ask for the Welding School Registrar. Lincoln Welding School BASIC COURSE 5 weeks of fundamentals $700.00 [There is a 10% discount on all orders of $50.00 or more for shipment at one time to one location. ”1 Orders of $50 or less before discount or orders outside of North America must be prepaid with charge, check or money order in U.S. Funds Only Prices include shipment by 4thClass Book Rate for U.S.A. Mainland Only. Please allow up to 4 weeks for delivery. UPS Shipping for North America Only. All prepaid orders that request UPS shipment please add: $5.00 For order value up to $49.99 $10.00 For order value betwee...
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