Gebruiksaanwijzing /service van het product LF-72/74 van de fabrikant Lincoln Electric
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LF- 72/74 SVM171-A January , 2007 Safety Depends on Y ou Lincoln arc welding and cutting equipment is designed and built with safety in mind. However , your overall safety can be increased by pr oper installation ... and thoughtful operation on your part.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC FOR ENGINE powered equipment. 1.a. T urn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC FOR ELECTRICALL Y powered equipment. 8.a. T urn of f input power using the disconnect switch at the fuse box before working on the equipment.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instruc.
LF-72/74 MASTER T ABLE OF CONTENTS FOR ALL SECTIONS Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-iv Installation LF-72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 SINGLE/DUAL Section A-1 Section A-1 T ABLE OF CONTENTS - INST ALLA TION SECTION - Installation ....................................
LF-72/74 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC A-2 INST ALLA TION A-2 TECHNICAL SPECIFICA TIONS : LF-72 Wire Feeder SPEC.
A-3 A-3 LF-72/74 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n.
INST ALLA TION LF-72/74 A-4 A-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC BENCH MOUNT The LF-72 mounts in a variety of configurations.
LF-72/74 INST ALLA TION A -5 A-5 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC SAFETY PRECAUTION ELECTRIC SHOCK can kill.
LF-72/74 INST ALLA TION A-6 A-6 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e .
LF-72/74 INST ALLA TION A-7 A-7 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e .
LF-72/74 NOTES A-8 A-8 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re.
LF-72/74 INST ALLA TION A-9 A-9 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e .
LF-72/74 INST ALLA TION A-10 A-10 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION A-11 A-11 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC WIRE DRIVE CONFIGURA TION (See Figure A.
LF-72/74 INST ALLA TION A-12 A-12 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC PRESSURE ARM ADJUSTMENT ELECTRIC SHOCK can kill.
LF-72/74 INST ALLA TION A-13 A-13 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 3.
LF-72/74 INST ALLA TION A-14 A-14 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION A-15 A-15 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC SHIELDING GAS CONNECTION C YLINDER may explode if damaged.
LF-72/74 INST ALLA TION A-16 A-16 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC INST ALLING ELECTRODE CONDUIT KITS ELECTRIC SHOCK can kill.
LF-72/74 INST ALLA TION A-17 A-17 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC ALUMINUM WIRE PREP ARA TIONS ELECTRIC SHOCK can kill.
LF-72/74 INST ALLA TION A-18 A-18 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION A-19 A-19 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 NOTES A-20 A-20 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC .
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 SINGLE/DUAL Section B-1 Section B-1 T ABLE OF CONTENTS - OPERA TION SECTION - Operation ...........................................
Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O.
LF-72/74 OPERA TION B-3 B-3 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T .
OPERA TION LF-72/74 B-4 B-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T .
Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC OPERA TION B-5 B-5 LF-72/74 SINGLE/DUAL 1.
LF-72/74 OPERA TION B-6 B-6 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T .
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 SINGLE/DUAL Section C-1 Section C-1 T ABLE OF CONTENTS - ACCESSORIES SECTION - Accessories ........................................
LF-72/74 ACCESSORIES C-2 C-2 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T.
LF-72/74 ACCESSORIES C-3 C-3 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T.
LF-72/74 ACCESSORIES C-4 C-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T.
LF-72/74 ACCESSORIES C-5 C-5 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T.
LF-72/74 NOTES C-6 C-6 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 SINGLE/DUAL Section D-1 Section D-1 T ABLE OF CONTENTS - MAINTENANCE SECTION - Maintenance ........................................
D-2 D-2 LF-72/74 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC MAINTENANCE MAINTENANCE Safety Precautions ELECTRIC SHOCK can kill.
MAINTENANCE D-3 D-3 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 SINGLE/DUAL 4.
LF-72/74 MAINTENANCE D-4 D-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 3 1 4 2 1.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 Section AA-1 Section AA-1 T ABLE OF CONTENTS - INST ALLA TION SECTION - Installation ..............................................
LF-72/74 INST ALLA TION AA-2 AA-2 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC TECHNICAL SPECIFICA TIONS : LF-74 Wire Feeder SPEC.
LF-72/74 INST ALLA TION AA-3 AA-3 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION AA-4 AA-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC BENCH MOUNT The LF-74 mounts in a variety of configurations.
LF-72/74 INST ALLA TION AA-5 AA-5 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC SAFETY PRECAUTION ELECTRIC SHOCK can kill.
LF-72/74 INST ALLA TION AA-6 AA-6 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION AA-7 AA-7 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION AA-8 AA-8 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION AA-9 AA-9 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st .
LF-72/74 INST ALLA TION AA-10 AA-10 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma s.
LF-72/74 INST ALLA TION AA-11 AA-11 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma s.
LF-72/74 INST ALLA TION AA-12 AA-12 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC ASSEMBL Y OF DRIVE ROLLS AND WIRE GUIDES ELECTRIC SHOCK can kill.
PRESSURE ARM ADJUSTMENT ELECTRIC SHOCK can kill. • T urn the input power OFF at the welding power s ource before installation or changing drive rolls and/or guides.
LF-72/74 INST ALLA TION AA-14 AA-14 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC SHIELDING GAS CONNECTION C YLINDER may explode if damaged.
LF-72/74 INST ALLA TION AA-15 AA-15 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 3.
LF-72/74 INST ALLA TION AA-16 AA-16 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma s.
LF-72/74 INST ALLA TION AA-17 AA-17 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC INST ALLING ELECTRODE CONDUIT KITS ELECTRIC SHOCK can kill.
LF-72/74 INST ALLA TION AA-18 AA-18 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC ALUMINUM WIRE PREP ARA TIONS ELECTRIC SHOCK can kill.
LF-72/74 INST ALLA TION AA-19 AA-19 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma s.
LF-72/74 INST ALLA TION AA-20 AA-20 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 2B 2B 4A 4A 1C 1C 4B 4B 5 5 2A 2A COMMON EQUIPMENT SET -UPS FIGURE AA.
LF-72/74 INST ALLA TION AA-21 AA-21 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma s.
LF-72/74 INST ALLA TION AA-22 AA-22 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma s.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC POWER FEED 10M SINGLE/DUAL Section BB-1 Section BB-1 T ABLE OF CONTENTS - OPERA TION SECTION - Operation ...................................
LF-72/74 OPERA TION BB-2 BB-2 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r .
LF-72/74 OPERA TION BB-3 BB-3 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r .
LF-72/74 OPERA TION BB-4 BB-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC ITEM DESCRIPTION 1 Wire Feed Speed Knob.
LF-72/74 OPERA TION BB-5 BB-5 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 1.
LF-72/74 OPERA TION BB-6 BB-6 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 6.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC POWER FEED 10M SINGLE/DUAL Section CC-1 Section CC-1 T ABLE OF CONTENTS - ACCESSORIES SECTION - Accessories ................................
LF-72/74 ACCESSORIES CC-2 CC-2 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r.
LF-72/74 ACCESSORIES CC-3 CC-3 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r.
LF-72/74 ACCESSORIES CC-4 CC-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r.
LF-72/74 ACCESSORIES CC-5 CC-5 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r.
LF-72/74 NOTES CC-6 CC-6 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC .
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC POWER FEED 10M SINGLE/DUAL Section DD-1 Section DD-1 T ABLE OF CONTENTS - MAINTENANCE SECTION - Maintenance ................................
LF-72/74 MAINTENANCE DD-2 DD-2 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC MAINTENANCE Safety Precautions ELECTRIC SHOCK can kill.
LF-72/74 MAINTENANCE DD-3 DD-3 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC FIGURE DD.
LF-72/74 MAINTENANCE DD-4 DD-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 3 1 4 2 1.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 SINGLE/DUAL Section E-1 Section E-1 Theory of Operation ...........................................................................
F IGURE E.2 GENERAL DESCRIPTION & INPUT RECEPT ACLE, CONTROL BOARD AND OPERA TOR CONTROLS 14 PIN INPUT CABLE R ECEPTACLE 2 4/42 VAC CONTROL BOARD WIRE FEED SPEED POT. TRIGGER INTERLOCK 2-STEP C OLD FEED GAS PURGE OPTIONAL BURNBACK TIMER OPTIONAL REMOTE VOLTAGE C ONTROL GAS SOLENOID 3.
LF-72/74 THEOR Y OF OPERA TION DRIVE MOTOR, T ACH FEEDBACK AND GAS SOLENOID The leads to the drive motor , gas solenoid and the tach (hall effect device LF-74 and LF-72 above codes 11290) are br ought into the control box via the 14 pin receptacle. This 14 pin r eceptacle also houses the gun trigger leads and the voltage sense leads.
LF-72/74 NOTES E-4 E-4 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re.
Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC LF-72/74 SINGLE/DUAL Section F-1 Section F-1 T ABLE OF CONTENTS - TROUBLESHOOTING & REP AIR SECTION - T roubleshooting & Repair Section .
HOW TO USE TROUBLESHOOTING GUIDE Service and repair should be performed by only Lincoln Electric Factory T rained Personnel. Unauthorized repairs performed on this equipment may r esult in danger to the technician and machine operator and will invalidate your factory warranty .
LF-72/74 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC TROUBLESHOOTING & REP AIR F-3 F-3 Sometimes machine failures appear to be due to PC board failures.
Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O.
The arc burns back to the tip. The gas continues to flow for a long time after the weld. 1. If timer kit is installed, reduce the amount of burnback time.
LF-72/74 TROUBLESHOOTING & REP AIR F-6 F-6 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu .
Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty .
LF-72/74 F-8 F-8 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC TROUBLESHOOTING & REP AIR TEST PROCEDURE 1.
LF-72/74 F-9 F-9 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n.
LF-72/74 F-10 F-10 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC TROUBLESHOOTING AND REP AIR GAS SOLENOID 552B 552 553 Off = 0 VDC OCV = 59 VDC On = 7.
LF-72/74 F-11 F-11 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur.
LF-72/74 F-12 F-12 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC TROUBLESHOOTING AND REP AIR 552A 552B + - 580 42 41 DIODE BRIDGE TEST (continued) FIGURE F .
LF-72/74 F-13 F-13 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur.
LF-72/74 F-14 F-14 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC 577 576 575 0 VDC MIN.
LF-72/74 F-15 F-15 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur.
LF-72/74 F-16 F-16 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T O C Re tur n t o Ma ste r T OC REMOV AL PROCEDURE 1.
LF-72/74 F-17 F-17 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur.
LF-72/74 F-18 F-18 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur.
LF-72/74 F-19 F-19 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur.
LF-72/74 TROUBLESHOOTING AND REP AIR F-20 F-20 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu .
LF-72/74 TROUBLESHOOTING AND REP AIR F-21 F-21 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu .
LF-72/74 NOTES F-22 F-22 Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T OC Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC .
LF-72/74 Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T OC Re tur n to Ma st e r T OC Section G-1 Section G-1 T ABLE OF CONTENTS - ELECTRICAL DIAGRAMS SECTION - Electrical Diagrams......................................
ELECTRICAL DIAGRAMS G-2 LF-72/74 WIRING DIAGRAM - ENTIRE MACHINE - CODE 1 1075, 1 1076, 1 1077 (L12146) LF-72 L12146 A CAVITY NUM BERING SEQU ENCE ( COMPONENT SIDE OF P.C. BOARD) J3 2 1 J5,J8 J9,J60 4 3 6 1 GENERAL INFORMATION ELECTRICAL SYMBOLS PER E 1537 C OLOR CODE B - BLACK R- R E D U - BLUE COMMON ANALOG P.
ELECTRICAL DIAGRAMS G-3 LF-72/74 WIRING DIAGRAM - ENTIRE MACHINE - CODE 1 1209, 1 1210, 1 121 1,1 1227 (L12146-1) LF-72 L12146-1 A CAVITY NUM BERING SEQU ENCE (COMPONENT SIDE OF P.C. BOARD) J 3 2 1 J 5,J8 J9,J60 4 3 6 1 GENERAL INFORMATION ELECTRICAL SYMBOLS PER E 1537 COLOR CODE B - BLACK R- R E D U - BLUE COMMON ANALOG P.
ELECTRICAL DIAGRAMS G-4 LF-72/74 WIRING DIAGRAM - ENTIRE MACHINE - CODE 1 1290, 1 1291, 1 1292,1 1293 (L12146-2) LF-72 L12146-2 A C AVITY NUM BERING SEQUENCE (COMPONENT SIDE OF P.
ELECTRICAL DIAGRAMS G-5 LF-72/74 WIRING DIAGRAM - ENTIRE MACHINE - CODE 1 1 195, 1 1 196, 1 1 197, (L12484) LF-74 L12484 A C AVITY NUM BERING SEQUENCE (COMPONENT SIDE OF P.
Re t ur n to Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re tur n t o Se ct io n T O C Re t ur n to Ma st e r T OC Re tu r n to Ma st e r T OC Re tur n to Ma st e r T .
ELECTRICAL DIAGRAMS G-7 LF-72/74 SCHEMA TIC - ENTIRE MACHINE - CODE 1 1209, 1 1210, 1 121 1,1 1227 (G4617-1) LF-72 A D C B E 554 556 TRIG GER C ONNECTOR J4 559 515 558 COLD F EED S1 FEED PLAT E T RIGG.
ELECTRICAL DIAGRAMS G-8 LF-72/74 SCHEMA TIC - ENTIRE MACHINE - CODE 1 1290, 1 1291, 1 1292,1 1293 (G4617-2) LF-72 A D C B E 554 556 TRIG GER CONNECTOR J 13 559 515 558 C OLD FEED S1 FEED PLAT E TRIG G.
ELECTRICAL DIAGRAMS G-9 LF-72/74 SCHEMA TIC - ENTIRE MACHINE - CODE 1 1 195, 1 1 196, 1 1 197, (G4942) LF-74 A D C B E 554 556 T RIG GER C ONNECTOR J13 559 515 558 COLD F EED S1 FEED PLAT E T RIGGER I.
ELECTRICAL DIAGRAMS G-10 LF-72/74 SCHEMA TIC - COMMON ANALOG CONTROL PC BOARD - (G4559 SHEET 1) G-10 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual.
ELECTRICAL DIAGRAMS G-11 LF-72/74 SCHEMA TIC - COMMON ANALOG CONTROL PC BOARD - (G4559 SHEET 2) G-11 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual.
ELECTRICAL DIAGRAMS G-12 LF-72/74 SCHEMA TIC - COMMON ANALOG CONTROL PC BOARD - (G4559 SHEET 3) G-12 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual.
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty . Individual Printed Circuit Board Components are not available from Lincoln Electric.
Een belangrijk punt na aankoop van elk apparaat Lincoln Electric LF-72/74 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen Lincoln Electric LF-72/74 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens Lincoln Electric LF-72/74 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Lincoln Electric LF-72/74 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Lincoln Electric LF-72/74 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Lincoln Electric LF-72/74 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de Lincoln Electric LF-72/74 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Lincoln Electric LF-72/74 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
