Thermal Arc ARCMASTER 185 AC/DC, Operating Manual

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TABLE OF CONTENTS (continued) TABLE OF CONTENTS
SECTION 6:
SEQUENCE OF OPERATION ........................................................................ 6-1
6.01 Stick Welding ................................................................................................. 6-2
6.02 AC o
r DC HF TIG Welding ............................................................................... 6-2
6.03 Slope Mode Sequence .................................................................................... 6-3
6.04 Slope Mode with Repeat Sequence ................................................................ 6-3
6.05 Pulse Cont
r ols ................................................................................................ 6-4
SECTION 7:
BASIC TIG WELDING GUIDE ....................................................................... 7-1
7.01 Explanation of “Flutte r y A r c” when AC TIG Welding on Aluminum ................. 7-1
7.02 Elect r ode Pola r ity ........................................................................................... 7-2
7.03 Tungsten Elect r ode Cu rr ent Ranges ............................................................... 7-2
7.04 Tungsten Elect r ode Types ............................................................................... 7-2
7.05 Guide fo r Selecting Fille r Wi r e Diamete r ......................................................... 7-3
7.06 Shielding Gas Selection .................................................................................. 7-3
7.07 TIG Welding Pa
r amete r s fo r Low Ca r bon & Low Alloy Steel Pipe .................. 7-3
7.08 Welding Pa r amete r s fo r Aluminum ................................................................ 7-4
7.09 Welding Pa r amete r s fo r Steel ......................................................................... 7-4
SECTION 8:
BASIC ARC WELDING GUIDE ..................................................................... 8-1
8.01 Elect r ode Pola r ity ........................................................................................... 8-1
8.02 Effects of Stick Welding Va r ious Mate r ials ..................................................... 8-1
SECTION 9:
ROUTINE MAINTENANCE .......................................................................... 9-1
SECTION 10:
BASIC TROUBLESHOOTING ...................................................................... 10-1
10.01 TIG Welding P r oblems ................................................................................ 10-1
10.02 Stick Welding P r oblems ............................................................................. 10-4
10.03 Powe r Sou r ce P r oblems ............................................................................. 10-7
SECTION 11:
VOLTAGE REDUCTION DEVICE (VRD) ........................................................... 11-1
11.01 VRD Specification ....................................................................................... 11-1
11.02 VRD Maintenance ....................................................................................... 11-1
11.03 Switching VRD On/Off ................................................................................ 11-2