Hobart Handler 190 - Troubleshooting Circuit Diagram for Welding Power Source

TM-260 273 Page 22 Handler 190
6-2. Troubleshooting Circuit Diagram For Welding Power Source
Test Equipment Needed:
V1
V2
V3
V4
V5
V7,R9
V6,R8
V10
V8
V9
R13
R11
R1
See also Section 6-3
for PC1 data
R10
R12
R2
R3
R4
R5
R6
R7
Voltage
Switch S2
Position
Min.
IPM
Max.
IPM
1
2
3
4
24
44
60
76
424
476
536
604
Wire Diameter
And Type
*All tests done with .030-.035 liner in H-10 model 10
foot welding gun, smooth groove drive roll.
Values are nominal depending on drive roll pressure
and spool hub tension.
.030/.035 Solid
or Flux Core
Wire Speed While Feeding*
5 92 672
6 108 708
7 124 728
Min.
RPM
Max.
RPM
1
2
3
4
13
17
21
25
125
142
161
177
*All tests done with the pressure assembly
open, not feeding wire. Values are nominal.
Drive Motor RPM At No Load*
Voltage
Switch S2
Position
5 29 195
6 34 204
7 38 208