Lincoln Electric Precision Tig Svm186 A Users Manual
SVM186-A to the manual 3f515961-cb22-4d7c-af7c-21c47f215bfc
2015-02-09
: Lincoln-Electric Lincoln-Electric-Precision-Tig-Svm186-A-Users-Manual-574411 lincoln-electric-precision-tig-svm186-a-users-manual-574411 lincoln-electric pdf
Open the PDF directly: View PDF
Page Count: 106 [warning: Documents this large are best viewed by clicking the View PDF Link!]
- Master Table of Contents
- Safety
- Section A - Installation
- Section B - Operations
- Section C - Accessories
- Section D - Maintenance
- Section E - Theory of Operation
- Section F - Troubleshooting and Repair
- Symptoms
- Machine is dead. No output - No fan - No 115 VAC at receptacle.
- The fan runs normally. No output from the machine in either Stick or TIG modes.
- Fan runs - No output from machine in either Stick or TIG modes and the yellow light on the control panel is on.
- The machine does not respond (no gas flow, no high frequency and no open circuit voltage) when the arc start switch or Amptrol is activated - fan is working normally.
- Machine regularly over heats -thermostat opens. Yellow light on front panel glows. The fan runs but the machine has no output.
- The machine does not have output in the Stick mode. The machine operates correctly in the TIG mode.
- Machine welds at a very low output regardless of the current control setting.
- The machine welds at a very high output regardless of the current control setting.
- Machine output is intermittently lost. Gas flow and high frequency are also interrupted.
- The arc "flutters" when TIG welding.
- The arc "pulsates" when AC TIG welding.
- Black areas along weld bead.
- Weak high frequency - machine has normal welding.
- High frequency "spark" is present at tungsten electrode, but operator is unable to establish a welding arc. Machine has normal open circuit voltage. Refer to Technical Specifications in the Installation Chapter.
- No high frequency. Machine is in the TIG mode and has normal output.
- No gas flow when Amptrol is activated in the TIG mode. Machine has normal output - fan runs. A "click" can be heard indicating that the gas solenoid valve is operating.
- When AC TIG welding, the arc is erratic and there is a loss of "cleaning" of the work piece.
- The end of the tungsten electrode melts away.
- Stick electrode "Blasts Off" when arc is struck.
- The stick electrode "sticks" in the puddle.
- Variable or sluggish welding arc when welding in the Stick mode.
- Section G - Electrical Diagrams