Table Of Contents - Lincoln Electric PRECISION TIG 275 Operator's Manual

Product Description.................................................................................................................................7
Recommended Processes and Equipment .......................................................................................7
Installation .................................................................................................................................Section A
Technical Specifications...............................................................................................................A-1, A-2
Safety Precautions ..............................................................................................................................A-3
Select Suitable Location...............................................................................................................A-3
Grinding.......................................................................................................................................A-3
Stacking ......................................................................................................................................A-3
Undercarriage Lifting and Moving ................................................................................................A-3
Tilting ..........................................................................................................................................A-3
Environmental Rating...................................................................................................................A-3
Machine Grounding and High Frequency Interference Protection..................................................A-3, A-4
Input and Grounding Connections.......................................................................................................A-4
Output Cable, Connections and Limitations ..........................................................................................A-5
Work Cable Connection ........................................................................................................A-5
Stick Electrode Cable Connection .........................................................................................A-5
TIG Torch Connection............................................................................................................A-6
Auxiliary Power Connections ................................................................................................A-7
Remote Control (If Used).......................................................................................................A-7
Robotic Interface Connection ........................................................................................A-7, A-8
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O
PERATION .......................................................................................................................................................................................
Safety Precautions ..............................................................................................................................B-1
Pipe Thawing...............................................................................................................................B-1
Duty Cycle: ..................................................................................................................................B-1
Controls and Settings ..................................................................................................B-2 THRU B-6
Internal Set Up Controls ...............................................................................................................B-7
Stick Welding Features ................................................................................................................B-7
TIG Welding Features ...................................................................................................................B-7
2 Step Trigger Modes ...........................................................................................................B-8
4 Step Trigger Modes ..........................................................................................................B-9
TIG Welding Cycle Chart, Setup Guidelines for TIG Welding with an Amptrol ..............................B-10
Setup for TIG Amptrol Welding ...................................................................................................B-11
Making a TIG Weld with an Amptrol ...........................................................................................B-12
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Accessories..................................................................................................................................Section C
Optional Equipment .............................................................................................................................C-1
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Maintenance
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Safety Precautions ..............................................................................................................................D-1
Routine and Periodic Maintenance ......................................................................................................D-1
Overload Protection.............................................................................................................................D-1
Service Procedures, Component Access,Spark Gap Adjustment ..........................................................D-2
Under-Cooler Service ..........................................................................................................................D-2
Meter Calibration Adjustment ..............................................................................................................D-3
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Troubleshooting
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Safety Precautions...............................................................................................................................E-1
How To Use TroubleShooting Guide......................................................................................................E-1
Troubleshooting ........................................................................................................................E-2 to E-7
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Diagrams Section F
Wiring Diagrams
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Dimension Prints
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Parts List
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TABLE OF CONTENTS

6
SAFETY
Page
Section B 1
-
Section D
Section E
F-1
F-2
P-543