Nelson NCD+ Auto-Gap Gun - Default Chapter; Table of Contents

© 2016 Nelson Stud Welding, Inc. Page 5
All Rights Reserved. February 2016 Part No. 729-110-042 v1.03
Contents
1 Overview ..............................................................................................................................................................7
1.1 Nelson NCD+ Welding Modes .................................................................................................................... 8
1.1.1 Contact Mode Capacitor Discharge Welding......................................................................................8
1.1.2 Gap Mode Capacitor Discharge Welding ...........................................................................................8
1.2 NCD+ Guns ................................................................................................................................................ 9
1.2.1 Operation of the Auto-Gap Gun (Gap Mode) .....................................................................................9
1.2.2 Operation of the Auto-Gap Gun (Contact Mode) ................................................................................9
2 Features ........................................................................................................................................................... 10
3 Gun Set-Up ....................................................................................................................................................... 11
3.1 Chuck Assembly Instructions ................................................................................................................... 11
3.1.1 Chuck Assembly .............................................................................................................................. 11
3.1.2 Adjusting Chuck and Stop Assembly ............................................................................................... 11
3.1.3 Adjusting Stud Stop Assembly ........................................................................................................ 11
3.2 Setting Up Foot and Leg Assembly .......................................................................................................... 12
3.3 Setting Spring Pressure (Auto-Gap Mode) ............................................................................................... 13
3.3.1 Setting Travel/Lift and Spring Pressure in Gap Mode ..................................................................... 13
3.3.2 Setting Spring Pressure in Contact Mode ....................................................................................... 14
3.3.3 Changing Your Tool To Weld with Contact ..................................................................................... 15
4 Weld Setup ....................................................................................................................................................... 16
4.1 Auto-Gap Gun ........................................................................................................................................... 16
4.2 Post Weld ................................................................................................................................................. 16
5 Maintenance of Stud Welding System ............................................................................................................. 17
5.1 Stud Welding Gun..................................................................................................................................... 17
5.2 Welding Cable / Control Cable ................................................................................................................. 17
5.3 Power Control Unit.................................................................................................................................... 17
6 Troubleshooting ................................................................................................................................................ 18
6.1 Visual Weld Inspection and Weld Parameter Adjustments ...................................................................... 18
6.2 Weld Quality Physical Inspection and Weld Parameter Adjustments ...................................................... 18
6.2.1 Recommendations ........................................................................................................................... 18
7 Exploded Drawings & Parts List ....................................................................................................................... 21
7.1 Parts List ................................................................................................................................................... 21
7.2 Exploded Drawing..................................................................................................................................... 23
7.3 Electrical Functions of Guns ..................................................................................................................... 24
7.3.1 Coil Power Circuit ............................................................................................................................ 24