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SVM186-A
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NOTES
F-44 F-44
PRECISION TIGĀ® 225
Contents
Main
SVM186-A
SERVICE MANUAL
PRECISION TIG 225
i i
FOR ENGINE powered equipment.
Mar 95
WARNING
ELECTRIC AND MAGNETIC FIELDS may be dangerous
ii ii
FUMES AND GASES can be dangerous.
Aug 06
ARC RAYS can burn.
ELECTRIC SHOCK can kill.
iii iii
FOR ELECTRICALLY powered equipment.
CYLINDER may explode if damaged.
WELDING and CUTTING SPARKS can cause fire or explosion.
iv iv
Mar 93
PRCAUTIONS DE SRET
PRCAUTIONS DE SRET POUR LES MACHINES SOUDER TRANSFORMATEUR ET REDRESSEUR
Page
Electromagnetic Compatibility (EMC)
- MASTER TABLE OF CONTENTS FOR ALL SECTIONS -
RETURN TO MAIN MENU
TABLE OF CONTENTS - INSTALLATION SECTION
TECHNICAL SPECIFICATIONS - PRECISION TIG 225 (K2533-1AND K2535-1,-2)
INPUT - SINGLE PHASE ONLY OUTPUT RANGE RATED OUTPUT
AC/DC Stick and Auto-B alance TIG Output L imits
TECHNICAL SPECIFICATIONS - CANADIAN (K2533-2), INTERNATIONALK2534-1)
PHYSICAL DIMENSIONS
ENVIRONMENTALRANGES
OUTPUT RANGE RATED OUTPUT
K2533-2 INPUT (at Rated Output)
SAFETYPRECAUTIONS
SELECT SUITABLE LOCATION MOUNTING
LIFTING AND MOVING
TILTING
MACHINE GROUNDING AND HIGH FRE- QUENCY INTERFERENCE PROTECTION
INPUT AND GROUNDING CONNECTIONS
INPUT RECONNECT PROCEDURE
CONNECTIONS FOR TIG (GTAW)WELDING
FIGUREA.1ReconnectLeads
OUTPUTCONNECTIONS
FIGUREA.2LocationofOutputConnections
CONNECTIONS FOR TIG (GTAW)WELDING
CONNECTIONS FOR STICK (SMAW) WELDING
Page
TABLE OF CONTENTS - OPERATION SECTION
SAFETYPRECAUTIONS
PRODUCT DESCRIPTION
RECOMMENDED PROCESSES AND EQUIP- MENT
WELDING CAPABILITY(Duty Cycle)
CONTROLSAND SETTINGS
POWER-UPSEQUENCE
Page
OPERATING STEPS
Page
RECOMMENDEDELECTRODEAMPERAGERANGES -PRECISION TIG 225
Page
Page
STANDARD EQUIPMENT PACKAGES
FACTORYINSTALLED OPTIONS
FIELD INSTALLED OPTIONS
Page
MAINTENANCE
SAFETYPRECAUTIONS
WARNING WARNING
TABLE OF CONTENTS-THEORY OF OPERATION SECTION
E-1 E-1
INPUT POWER SWITCH
MAIN TRANSFORMER
POLARITY SWITCH
GENERALDESCRIPTION
INPUT POWER CIRCUIT
OUTPUT RECTIFICATION AND FEEDBACK CONTROL
E-4 E-4
HIGHVOLTAGE/ HIGH FREQUENCY CIRCUIT
FIGURE E.2 - High Voltage/HighFrequency Circuit.
NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion
INPUT POWER SWITCH
MAIN TRANSFORMER
DC WELDING OUTPUT
AC WELDING OUTPUT
SCROPERATION
PROTECTIVE CIRCUITS
THERMALPROTECTION
OVERLOAD PROTECTION
115 VACRECEPTACLE
TABLE OF CONTENTS - TROUBLESHOOTING AND REPAIR
HOW TO USE TROUBLESHOOTING GUIDE
PC BOARD TROUBLESHOOTING PROCEDURES
Page
Page
Page
Page
Page
Page
Page
Page
WARNING
Page
Page
HIGH FREQUENCY CIRCUIT DISABLE PROCEDURE
HIGH FREQUENCY CIRCUIT DISABLE PROCEDURE (continued)
LEFT SIDE OF MACHINE
T1 TRANSFORMER TEST
Page
T1 TRANSFORMER TEST (continued)
Page
STATICSCR TEST
PLUG J2 REMOVED
STATICSCR TEST (continued)
TEST PROCEDURE
CASE COVER REMOVALAND REPLACEMENT PROCEDURE (continued)
TEST PROCEDURE (continued)
Page
ACTIVE SCR TEST
ACTIVE SCR TEST (continued)
TEST PROCEDURE
ACTIVE SCR TEST (continued)
TEST PROCEDURE (continued)
Page
AC TIG MODE
DC TIG MODE
AC STICK MODE
DC STICK MODE
AC TIG MODE
DC TIG MODE
AC STICK MODE
DC STICK MODE
ABNORMAL OPEN CIRCUIT VOLTAGE- DC TIG MODE ONE OUTPUT SCR NOT FUNCTIONING
Page
Page
Page
PROCEDURE (continued)
FRONT PANEL MOUNTING SCREWS
PLUG J2 REMOVED
Page
Page
POLARITY SWITCH
Page
POLARITYSWITCH
Page
Page
TRANSFORMER SECONDARY LEADS
Page
Page
Page
MAIN TRANSFORMER AND OUTPUT CHOKE ASSEMBLY
NOTES
RETEST AFTER REPAIR
Page
TABLE OF CONTENTS - DIAGRAM SECTION
ELECTRICAL DIAGRAMS
WIRING DIAGRAM - COMPLETE MACHINE - ALL CODES (G5646)
IEW)
V
PTAC
ELECTRICAL DIAGRAMS
SCHEMATIC - COMPLETE MACHINE -ALL CODES (G5647)
GangF
Gang
G
Page
Page
Page
ELECTRICAL DIAGRAMS
PC BOARD ASSEMBLY- CONTROL #1 (G5641)
2 3 4 5
COMPONENT SIDE
CONTROL
ELECTRICAL DIAGRAMS
PC BOARD ASSEMBLY- CONTROL #2 (G5641)
OPPOSITE COMPONENT SIDE
X
XXX
S22530-1B0
08/26/2002
NA CRM34563
ION:
IT
S22530-1B0
MATERIAL DISPOS
APPROVAL DATE:
PROJECT NUMBER:
1
ELECTRICAL DIAGRAMS
PC BOARD ASSEMBLY - BYPASS (L10121)
ATI
NFORM
I