OM-263 706 Page 18
5-6.
Stick Start Procedure − Scratch Start Technique
With Stick selected, start arc as follows:
1
Electrode
2
Workpiece
3
Arc
Drag electrode across workpiece like strik-
ing a match; lift electrode slightly after touch-
ing work. If arc goes out electrode was lifted
to high. If electrode sticks to workpiece, use
a quick twist to free it.
!
When VRD is off, normal open-circuit
voltage (50 volts) is present before
electrode touches workpiece.
When VRD is on, normal open-circuit volt-
age is not present before electrode touches
workpiece; only a low sensing voltage is
present between electrode and workpiece
.
1
2
3
5-7.
Amperage Control (All Models)
1
Amperage Control
Rotate control clockwise to in-
crease amperage (0−270 amps).
2
Amperage Indicator LED
LED ls lit when using the Amperage
control.
1
2
956172127_5-A
Содержание STi 270
Страница 25: ...OM 263 706 Page 21 SECTION 7 ELECTRICAL DIAGRAMS 956172128_A Figure 7 1 Circuit Diagram For STi 270 ...
Страница 26: ...OM 263 706 Page 22 Figure 7 2 Circuit Diagram For STi 270C 956172129_A ...
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