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IM623-A
May, 2001
LFA 3. 1 & 4. 1 Fume Extraction Arms
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
E
and be careful.
OPERATOR’S MANUAL
� World's Leader i
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i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents The engine exhaust from this product contains are known to the State of California to cause can- chemicals known to the State of California to cause cer, birth defects, and other reproductive harm. cancer, birth defects, or other reproductive harm. The Above For Diesel Engines The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY
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ii ii SAFETY ELECTRIC SHOCK can ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover kill. plates to protect your eyes from sparks and 3.a. The electrode and work (or ground) circuits the rays of the arc when welding or observing are electrically “hot” when the welder is on. open arc welding. Headshield and filter lens Do not touch these “hot” parts with your bare should conform to ANSI Z87. I standards. skin or wet clothing. Wear dry, hole-free gloves to insulate hands. 4.b. Us
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iii iii SAFETY WELDING SPARKS can CYLINDER may explode cause fire or explosion. if damaged. 6.a. Remove fire hazards from the welding area. 7.a.Use only compressed gas cylinders If this is not possible, cover them to prevent containing the correct shielding gas for the the welding sparks from starting a fire. process used and properly operating Remember that welding sparks and hot regulators designed for the gas and materials from welding can easily go through small cracks pressure used. All hos
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iv iv SAFETY 5. Toujours porter des lunettes de sécurité dans la zone de PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les zones où l’on pique le laitier. Pour votre propre protection lire et observer toutes les instruc- tions et les précautions de sûreté specifiques qui parraissent 6. Eloigner les matériaux inflammables ou les recouvrir afin de dans ce manuel aussi bien que les précautions de sûreté prévenir tout risque d’incendie dû aux étincelles. générales su
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v v for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product Thank You ��� as much pride as we have in bringing this product to you! Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims for material damaged in shipment must be made by the purchaser against the transportation company at the time the shipment
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vi TABLE OF CONTENTS Page Safety .......................................................................................................................................i-iv Installation.......................................................................................................................Section A Technical Specifications.......................................................................................................A-1 Safety Precautions ....................................
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A-1 A-1 INSTALLATION Technical Specifications- LFA 3.1 & 4.1 Fume Extraction Arms GENERAL Sales Specification K1655-1 K1655-2 Description LFA 3.1, 10 ft. Extraction Arm LFA 4.1, 13 ft. Extraction Arm Arm Length (including hood) 9.85 ft. (3 m) 13.13 ft. (4 m) Nominal Diameter 8.0 in. (203 mm) 3 3 Recommended Capacity 350 CFM (600 m /h) - 940 CFM (1,600 m /h) Weight 33 lbs. (15 kg) 37 lbs. (17 kg) 16 ft. AMBIENT CONDITIONS o o 13 ft. Min. Temperature 41 F (5 C) o o Max. Temperature 113 F (45 C)
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A-2 A-2 INSTALLATION Read this entire installation section before you If installing the arm on a Mobiflex 200-M, start installation. refer to the Mobiflex 200-M manual for installation information. SAFETY PRECAUTIONS Do not attempt to use this equipment until you have If installing the arm on a Mobiflex 400-MS, thoroughly read all installation, operating and mainte- refer to the Mobiflex 400-MS manual for installation nance information supplied with your equipment. They information. include
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A-3 A-3 INSTALLATION INSTALLING THE LFA 3.1 OR 4.1 ARM ON A WALL MOUNTING BRACKET WARNING Only qualified personnel should install, use or service this equipment. ------------------------------------------------------------------------ CAUTION 9" (230 mm) Leave the tape and plastic packaging on the extrac- tion arm sections until the arm is completely installed (including mounting the hood). The arm is spring-bal- Fig. 2 anced to compensate for the weight of the hood and will spring out quickl
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A-4 A-4 INSTALLATION Rotate the hinge rod (Fig. 4, Item D) so the stop pin INSTALLING THE LFA 3.1 OR 4.1 (Fig. 4, Item B) is in the front. Mount the hanging ARM ON A WALL MOUNTING adapter (Fig. 5, Item D) to the hinge rod using (2) BRACKET 1.75” bolts with washers and nuts. Mount the spring bracket (Fig. 5, Item F) into the two holes as shown. (continued) Position one 8” rubber band (Fig. 5, Item A) and the flexible hose supplied with the mounting bracket (Fig. MOUNTING THE LFA 3.1 OR 4.1 ARM
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A-5 A-5 INSTALLATION If using a Lincoln SF2400 Stationary Fan: INSTALLING THE LFA 3.1 OR 4.1 ARM ON A WALL MOUNTING MOUNTING THE SF2400 FAN TO THE WALL BRACKET MOUNTING BRACKET (continued) Use the (2) 0.75” bolts and the (2) 2.5” bolts with washers supplied with the fan to mount the fan MOUNTING THE LFA 3.1 OR 4.1 ARM TO THE (Fig. 9, Item B) to the rotating hinge (Fig. 9, Item C) WALL-MOUNTING BRACKET as shown. Tighten all mounting bolts firmly to make (continued) the seal at the inlet of the
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B-1 B-1 OPERATION Read and understand this entire section before oper- Only qualified personnel should operate this equip- ating your LFA 3.1 or 4.1 Extraction Arm. ment. ADDITIONAL SAFETY PRECAUTIONS SAFETY INSTRUCTIONS Always operate the fan with the arm installed and all Do not attempt to use this equipment until you have covers in place as these provide maximum protection thoroughly read all operating and maintenance man- from moving parts and insure proper vacuum opera- uals supplied with
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C-1 C-1 MAINTENANCE 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
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D-1 D-1 TROUBLESHOOTING 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. Check hose connections and integrity Fan outlet blocked. Remove obstructions from fan outlet. Air path in arm blocked. Remove obstructions from arm. Filter blocked (if used). Check maintenance indicator and replace filter if necessary. Spark
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NOTES X-TRACTOR 1GC
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Now Available...12th Edition New Lessons in Arc Welding The Procedure Handbook of Arc Welding Lessons, simply written, cover manipulatory techniques; With over 500,000 copies of previous editions published machine and electrode characteristics; related subjects, since 1933, the Procedure Handbook is considered by many to such as distortion; and supplemental information on arc be the “Bible” of the arc welding industry. welding applications, speeds and costs. Practice materials, exercises, quest
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● Do not touch electrically live parts or ● Keep flammable materials away. ● Wear eye, ear and body protection. electrode with skin or wet clothing. WARNING ● Insulate yourself from work and ground. Spanish ● No toque las partes o los electrodos ● Mantenga el material combustible ● Protéjase los ojos, los oídos y el bajo carga con la piel o ropa moja- fuera del área de trabajo. cuerpo. AVISO DE da. PRECAUCION ● Aislese del trabajo y de la tierra. French ● Ne laissez ni la peau ni des vête- ● Gar
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● Keep your head out of fumes. ● Turn power off before servicing. ● Do not operate with panel open or ● Use ventilation or exhaust to guards off. WARNING remove fumes from breathing zone. Spanish ● Los humos fuera de la zona de res- ● Desconectar el cable de ali- ● No operar con panel abierto o piración. mentación de poder de la máquina guardas quitadas. AVISO DE ● Mantenga la cabeza fuera de los antes de iniciar cualquier servicio. humos. Utilice ventilación o PRECAUCION aspiración para gases.
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� World's Leader in Welding and Cutting Products � � Sales and Service through Subsidiaries and Distributors Worldwide � Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
