Page 2 - FOR ENGINE; SAFETY; PERFORMED ONLY BY QUALIFIED INDIVIDUALS.; WARNING; ELECTRIC AND; CALIFORNIA PROPOSITION 65 WARNINGS
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC FOR ENGINE powered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. ...
Page 3 - ii
FUMES AND GASES can be dangerous. 5.a. Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases.When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep fumes and gases away from the breathing zone. When welding with...
Page 4 - iii
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC FOR ELECTRICALLY powered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Co...
Page 5 - PRÉCAUTIONS DE SÛRETÉ; PRÉCAUTIONS DE SÛRETÉ POUR; iv
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté général...
Page 6 - MASTER TABLE OF CONTENTS FOR ALL SECTIONS
LN-23P MASTER TABLE OF CONTENTS FOR ALL SECTIONS v v Page Safety .................................................................................................................................................i-iv Installation ...........................................................................
Page 7 - TABLE OF CONTENTS
TABLE OF CONTENTS - INSTALLATION SECTION - LN-23P Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section A Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Safety Precautions ....
Page 8 - INSTALLATION; TECHNICAL SPECIFICATIONS – LN-23P; OPERATING ARC VOLTAGE; EENNVVIIRRO
INSTALLATION A-2 LN-23P A-2 TECHNICAL SPECIFICATIONS – LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TEMPERATURE RANGE OPERATION: - 30 o C o * to +40 o C (- 22...
Page 9 - INPUT CABLE; SAFETY PRECAUTIONS; WORK CABLE AND REMOTE VOLTAGE
LN-23P INSTALLATION A-3 A-3 Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC INPUT CABLE : For K316L-1 (6 pin connector) The standard 25 foot input cable between the LN-...
Page 10 - K-276 ENCLOSED 50lb.WIRE REEL SUPPORT; WIRE DRIVE ROLLS AND GUIDE TUBES; INNERSHIELD GUN AND CABLE
INSTALLATION LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC • DC-600 (below code 10500): Attach the triangular mounting plate to the shock mounted plate of the ...
Page 11 - ACCESSORIES; POWER SOURCE
ACCESSORIES A-5 A-5 LN-23P POWER SOURCE One or two LN-23Pʼs can be connected to a DC power source (constant voltage) with a K-350 or K350-1 Adapter Kit. If two LN-23Pʼs are connected, they can be set for different procedures but only one can be used at a time. Power source connection diagrams: M1732...
Page 12 - NOTES
NOTES A-6 A-6 LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC
Page 13 - TABLE OF CONTENTS; Section B
TABLE OF CONTENTS - OPERATION SECTION - LN-23P Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section B Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 Product Description . . ...
Page 14 - OPERATION; PRODUCT DESCRIPTION
OPERATION B-2 B-2 LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC PRODUCT DESCRIPTION The K316L-[ ] / LN-23P is an arc voltage powered, lightweight, portable wir...
Page 15 - DRIVE ROLL PRESSURE; Always avoid sharp bends and keep the gun cable
OPERATION B-3 B-3 LN-23P DRIVE ROLL PRESSURE The drive roll pressure is pre-set at the factory for proper feeding. If the idle roll tension must be relieved temporarily, see the Maintenance Section for proper adjustment procedure. ADJUSTING WIRE FEED SPEED AND VOLTAGE Set the wire feed as specified ...
Page 17 - Section C
TABLE OF CONTENTS - ACCESSORIES SECTION - LN-23P Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section C LN-23P Gun and Cable Assemblies Chart . . . . . . . . . . . . . . . . . . . . . . . . C-2 Optional Accessories . . . . . . . . . ...
Page 18 - OPTIONAL EQUIPMENT; GUN AND CABLE ASSEMBLIES
ACCESSORIES C-2 C-2 LN-23P OPTIONAL EQUIPMENT GUN AND CABLE ASSEMBLIES K350 ADAPTER KIT Required when using the LN-23P on any constant voltage power source. Either one or two LN-23Pʼs can be connected to the Adapter. If two LN-23Pʼs are con- nected, they can be set for different procedures. The Adap...
Page 19 - Section D
TABLE OF CONTENTS - MAINTENANCE SECTION - LN-23P Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section D Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2 Replacing or Reeversing ...
Page 20 - MAINTENANCE; S e e a d d i t i o n a l w a r n i n g i n f o r m a t i o n
MAINTENANCE D-2 D-2 LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC GUN AND CABLE MAINTENANCE Remove spatter from tip after each ten minutes of arc time or as re...
Page 21 - CIRCUIT PROTECTION
MAINTENANCE D-3 D-3 LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC CIRCUIT PROTECTION Circuit Breaker – The 3.5 amp circuit breaker located on the rear of the u...
Page 23 - Section E; FIGURE E.1 GENERAL DIAGRAM
TABLE OF CONTENTS - THEORY OF OPERATION SECTION - LN-23P Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section E General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2 Input Power Circuit ....
Page 24 - THEORY OF OPERATION; GENERAL DESCRIPTION; INPUT POWER CIRCUIT
THEORY OF OPERATION E-2 E-2 LN-23P + VOLTMETER WIRE SPEED CONTROL REDUCED SPEED CONTROL GUN TRIGGER SWITCH REED SWITCH ACTIVATED GUN CONDUCTOR BLOCK WIRE FEED MOTOR BY WELDING CURRENT VOLTAGE CONTROL LN-23PCONTROLP.C. BOARD 3.5 A CIRCUIT BREAKER 567 R12 R75 535 535 ABCD 539 647 647 WORK 604 602 604 ...
Page 25 - CONTROL CIRCUIT OPERATION; VOLTS AND SPEED CONTROL CIRCUITS
THEORY OF OPERATION E-3 E-3 LN-23P CONTROL CIRCUIT OPERATION VOLTS AND SPEED CONTROL CIRCUITS The Voltage Control is connected directly to the K350 Adapter or the power source (if no adapter is required) by leads 75, 76 & 77. It can be adjusted while welding to provide the voltage called for by ...
Page 26 - OPTIONAL CIRCUITS; In a two feeder system, both guns will be ʻHOTʼ
THEORY OF OPERATION E-4 E-4 LN-23P OPTIONAL CIRCUITS K350 / K350-1ADAPTER KITS The K350 Adapter kits are used to interface one or two LN-23P feeders to a Lincoln CV power source. Figure E.4 shows a typical two feeder connection using a K350-1. If only one feeder is used it must be connected to the “...
Page 29 - Test Procedures; ELECTRIC SHOCK can kill.
Troubleshooting and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section F How to Use Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-2 PC Board Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . F-3 Trou...
Page 30 - TROUBLESHOOTING AND REPAIR; precautions detailed throughout this manual.
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC F-2 F-2 TROUBLESHOOTING AND REPAIR If for any reason you do not understand the test procedures or are unable to perform ...
Page 31 - TROUBLESHOOTING & REPAIR; PC BOARD TROUBLESHOOTING PROCEDURES
F-3 F-3 TROUBLESHOOTING & REPAIR Sometimes machine failures appear to be due to PC board failures. These problems can sometimes be traced to poor electrical connections. To avoid prob- lems when troubleshooting and replacing PC boards, please use the following procedure: 1. Determine to the best...
Page 32 - FEEDING PROBLEMS; CAUTION; See the
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC LN-23P F-4 F-4 TROUBLESHOOTING AND REPAIR FEEDING PROBLEMS Observe Safety Guidelines detailed in the beginning of this m...
Page 33 - PROBLEMS; OUTPUT PROBLEMS
LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC F-5 F-5 TROUBLESHOOTING AND REPAIR FEEDING PROBLEMS (cont.) Observe Safety Guidelines detailed in the beginning o...
Page 34 - K350 ADAPTER PROBLEMS
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC LN-23P If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, co...
Page 35 - TEST DESCRIPTION; MATERIALS NEEDED
LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC F-7 F-7 TROUBLESHOOTING AND REPAIR Service and repair should be performed by only Lincoln Electric factory traine...
Page 36 - TEST PROCEDURE
LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC F-8 F-8 TROUBLESHOOTING AND REPAIR WIRE FEEDER TEST (cont.) FIGURE F.1 FEEDER TEST SET-UP TEST PROCEDURE 1. Remov...
Page 38 - FIGURE F.2 GUN CABLE TESTS; TEST PROCEDURE
LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC F-10 F-10 TROUBLESHOOTING AND REPAIR GUN TEST (cont.) FIGURE F.2 GUN CABLE TESTS TEST PROCEDURE 1. To check the G...
Page 40 - NEG
LN-23P F-12 F-12 TROUBLESHOOTING AND REPAIR FEED HEAD TEST (cont.) TEST PROCEDURE 1. Remove the weld wire from the drive rolls. 2. Disconnect the motor leads, 541 and 539, from the Control Board and clamp an amp probe around one of the leads. NOTE: A DC ammeter may be connected in series with a moto...
Page 42 - WIRE SPEED CONTROL POTENTIOMETER
LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC F-14 F-14 TROUBLESHOOTING AND REPAIR POTENTIOMETER TEST (cont.) TEST PROCEDURE WIRE SPEED CONTROL POTENTIOMETER 1...
Page 46 - CALIBRATION CHECK; an external supply the wire will be at that potential.; If either the Control PC Board or the Wire Feed Motor is replaced,
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC LN-23P Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC...
Page 48 - ELECTRICAL DIAGRAMS
ELECTRICAL DIAGRAMS G-2 LN-23P WIRING DIAGRAM - ENTIRE MACHINE - (M14197) G-2 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine. Retur n to Se...
