Specifications

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BOSS ARC 140VRD、160VRD Operating Manual
CONTENTS
SYMBOL LEGEND---------------------------------------------------------------------------------------------------2
STATEMENT OF WARRANTY------------------------------------------------------------------------------------3
1.0 GENERAL INFORMATION-------------------------------------------------------------------------------4
1.01 Notes, Cautions and Warnings------------------------------------------------------------------------4
1.02 Important Safety Precautions--------------------------------------------------------------------------4
1.03 Transporting methods-----------------------------------------------------------------------------------6
2.0 INSTALLATION RECOMMENDATION----------------------------------------------------------------7
2.01 Electrical Input Connections---------------------------------------------------------------------------8
2.02 Specifications----------------------------------------------------------------------------------------------9
2.03 Duty cycle--------------------------------------------------------------------------------------------------9
3.0 OPERATOR CONTROLS-------------------------------------------------------------------------------10
3.01 BOSS ARC VRD Series controls-------------------------------------------------------------------10
3.02 Weld parameter description--------------------------------------------------------------------------11
4.0 SET-UP FOR MMA (STICK) AND GTAW (TIG)----------------------------------------------------12
4.01 Stick welding---------------------------------------------------------------------------------------------13
4.02 DC TIG welding-----------------------------------------------------------------------------------------13
5.0 POWER SUPPLY CONTROLS INDICATORS AND REATURES-----------------------------14
6.0 BASIC TIG WELDING GUIDE--------------------------------------------------------------------------15
6.01 Electrode Polarity---------------------------------------------------------------------------------------15
6.02 Tungsten Electrode Current Ranges---------------------------------------------------------------15
6.03 Tungsten Electrode Types----------------------------------------------------------------------------15
6.04 Guide for Selecting Filler Wire Diameter----------------------------------------------------------15
6.05 Shielding gas selection--------------------------------------------------------------------------------16
6.06 TIG welding parameters for low carbon & low alloy steel pipe-------------------------------16
6.07 Welding parameters for steel------------------------------------------------------------------------16
7.0 BASIC ARC WELDING GUIDE------------------------------------------------------------------------17
7.01 Electrode polarity---------------------------------------------------------------------------------------17
7.02 Effects of stick welding various materials---------------------------------------------------------17
8.0 MAINTENANCE--------------------------------------------------------------------------------------------18
9.0 BASIC TROUBLESHOOTING-------------------------------------------------------------------------19
9.01 Check the item and excrescent phenomenon exclusion method---------------------------19
9.02 TIG welding problems---------------------------------------------------------------------------------20
9.03 Stick welding problems--------------------------------------------------------------------------------21
9.04 Power source problems-------------------------------------------------------------------------------22
10.0 PART LIST---------------------------------------------------------------------------------------------------23
11.0 REMARK-----------------------------------------------------------------------------------------------------27