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Lincoln Electric
IM847-D
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F-5
DIMENSION PRINTS
F-5
LF-72
BENCH MODEL
BENCH MODEL STANDARD DUTY
Contents
Main
LF-72 WIRE FEEDER
OPERATORS MANUAL
IM847-D
Safety Depends on You
IP21 IEC 60974-5
FOR ENGINE powered equipment.
i
ELECTRIC AND MAGNETIC FIELDS may be dangerous
ii
Jan 09
ARC RAYS can burn.
ELECTRIC SHOCK can kill.
FUMES AND GASES can be dangerous.
iii
FOR ELECTRICALLY powered equipment.
CYLINDER may explode if damaged.
Refer to http://www.lincolnelectric.com/safetyfor additional safety information.
WELDING and CUTTING SPARKScan cause fire or explosion.
Jan 09
PRCAUTIONS DE SRET
PRCAUTIONS DE SRET POUR LES MACHINES SOUDER TRANSFORMATEUR ET REDRESSEUR
v vTABLE OF CONTENTS
TThhaannkk YYoouufor selecting a QUALITYproduct by Lincoln Electric. We want you
Please Examine Carton and Equipment For Damage Immediately
On-Line Product Registration
vi vi TABLE OF CONTENTS
vii
A-1
TECHNICAL SPECIFICATIONS
INPUT POWER
A-1
:
LF-72 Wire Feeder
SAFETY PRECAUTION
LOCATION
ELECTRIC SHOCK can kill.
MOUNTING
Page
A-4
SAFETY PRECAUTION ELECTRIC SHOCK can kill.
WELD CABLE SIZES
A-5
A-5 COAXIAL WELD CABLES
WELD CABLE CONNECTION
Electrode Work
Work
ANALOG CONTROL CABLE
CONTROL CABLE CONNECTIONS
A-7
A-7 ANALOG MILLER CONTROL CABLE ADAPTER K2335-1
MILLER POWER SOURCE
LINCOLN WIRE FEEDER
WELDING GUN/WIRE FEEDER TRIGGER CONNECTOR
WIRE DRIVE SYSTEMS
Page
WIRE DRIVE CONFIGURATION
PROCEDURE FOR CHANGING DRIVE AND IDLE ROLL SETS
A-10
WARNING WARNING
A-11
A-11 PRESSURE ARM ADJUSTMENT
WIRE REEL LOADING
A-12
A-13
WELD WIRE ROUTING
A-14
A-14 SHIELDING GAS CONNECTION
A-15
"O" RING
INSTALLING ELECTRODE CONDUIT KITS
A-16
ALUMINUM WIRE PREPARATIONS
Page
A-18
A-18 TYPICAL SYSTEM CONFIGURATIONS
SAFETY PRECAUTIONS
B-2
COMMON WELDING ABBREVIATIONS
PRODUCT DESCRIPTION
RECOMMENDED PROCESSES
REQUIRED EQUIPMENT
FRONT PANEL CONTROLS AND CONNECTIONS
B-4
5.
1. REMOTE VOLTAGE CONTROL KIT
2. BURNBACK AND POSTFLOW TIMER KIT
3. THERMAL LED, MOTOR OVERLOAD
B-5
8.
6. WIRE FEED SPEED KNOB
7. GUN RECEIVER BUSHING (K1500-2)
TRIGGER CONNECTOR 5-PIN AMPHENOL
C-1
C-2
C-3
C-4
D-1
MAINTENANCE
D-1
MAINTENANCE
Safety Precautions
ROUTINE MAINTENANCE
MAINTENANCE
D-2
FIGURE D.1
FIGURE D.2
E-1
HOW TO USE TROUBLESHOOTING GUIDE
ELECTRIC SHOCK can kill.
E-2
PROBLEMS (SYMPTOMS)
POSSIBLE AREAS OF MISADJUSTMENTS(S)
RECOMMENDED COURSE OF ACTION
E-3
PROBLEMS (SYMPTOMS)
POSSIBLE AREAS OF MISADJUSTMENTS(S)
RECOMMENDED COURSE OF ACTION
F-1
LF-72 FEEDER (11075, 11076, 11077)
N.D. PIN NEAREST THE FLAT EDGE OF LED LENS ALIGNS WITH WHITE LEAD OF LED SOCKET.
N.C. TOGGLE SWITCHES AND POTENTIOMETERS SHOWN FROM CONNECTION SIDE OF SWITCH.
N.B. CAVITY NUMBERING SEQUENCE AS VIEWED FROM LEAD SIDE OF CONNECTOR.
L1
LF-72 FEEDER (FOR CODES 11209, 11210, 11211 11227)
N.D. PIN NEAREST THE FLAT EDGE OF LED LENS ALIGNS WITH WHITE LEAD OF LED SOCKET.
N.C. TOGGLE SWITCHES AND POTENTIOMETERS SHOWN FROM CONNECTION SIDE OF SWITCH.
N.B. CAVITY NUMBERING SEQUENCE AS VIEWED FROM LEAD SIDE OF CONNECTOR.
N.A. CAVITY NUMBERING SEQUENCE AS VIEWED FROM COMPONENT SIDE OF BOARD.
DIAGRAMS
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AVISO DE PRECAUCION ATTENTION WARNUNG ATENO
AVISO DE PRECAUCION ATTENTION WARNUNG ATENO