Table of Contents
Stud welding unit
operating manual
Date:
July 2021
ALPHA 850
07.2021 / EN
Rev.:
A
3.6
Location of use ............................................................................ 20
3.7
Device set-up ............................................................................... 20
4
Connection and installation ................................................................ 21
4.1
Power cable connection ............................................................. 22
4.2
Welding cable connection .......................................................... 24
4.3
Control cable connection ........................................................... 25
4.4
Earth cable connection .............................................................. 26
4.5
Workpiece connection ................................................................ 26
5
Control and display elements ............................................................. 28
5.1
Operating elements ..................................................................... 28
5.2
Display elements ......................................................................... 30
6
Equipment fuses ................................................................................... 31
6.1
Fuse elements ............................................................................. 31
7
Start-up and weld quality check ......................................................... 33
7.1
Notes about stud welding .......................................................... 33
7.2
Adjusting the weld parameters ................................................. 34
7.3
Commissioning conditions ........................................................ 38
7.4
Functional test ............................................................................. 39
7.5
Checking weld quality ................................................................ 43
7.5.1
Visual inspection “drawn arc process” ....................................................... 44
7.5.2
Visual inspection “short cycle drawn arc process” ..................................... 45
8
Maintenance .......................................................................................... 46
8.1
Care and cleaning ....................................................................... 46
8.2
Maintenance intervals................................................................. 47
9
Repairs ................................................................................................... 48
