Hobart Handler 140 Technical Manual page 23

Voltage Readings
a) Tolerance −  10 % unless
specified
b) Wiring Diagram − see Section 9
V1 115 volts AC with power cord plugged in
V2 115 volts AC with Power switch S1 On
V3 24 volts AC with Power switch S1 On
V4 30 volts DC with Power switch S1 On
V5 24 volts AC with gun trigger closed with Power
switch S1 On
V6 14.0 volts AC with unit turned on, Voltage switch S2
in position 1 and gun trigger closed
15.6 volts AC with unit turned on, Voltage switch S2
in position 2 and gun trigger closed
17.2 volts AC with unit turned on, Voltage switch S2
in position 3 and gun trigger closed
18.7 volts AC with unit turned on, Voltage switch S2
in position 4 and gun trigger closed
20.2 volts AC with unit turned on, Voltage switch S2
in position 5 and gun trigger closed
V7 14.0 volts AC with unit turned on, Voltage switch S2
in position 1 and gun trigger closed
15.6 volts AC with unit turned on, Voltage switch S2
in position 2 and gun trigger closed
17.2 volts AC with unit turned on, Voltage switch S2
in position 3 and gun trigger closed
18.7 volts AC with unit turned on, Voltage switch S2
in position 4 and gun trigger closed
20.2 volts AC with unit turned on, Voltage switch S2
in position 5 and gun trigger closed
V8 18.7 volts DC with unit turned on, Voltage switch S2
in position 1 and gun trigger closed
20.7 volts DC with unit turned on, Voltage switch S2
in position 2 and gun trigger closed
23.0 volts DC with unit turned on, Voltage switch S2
in position 3 and gun trigger closed
25.1 volts DC with unit turned on, Voltage switch S2
in position 4 and gun trigger closed
27.4 volts DC with unit turned on, Voltage switch S2
in position 5 and gun trigger closed
V9 115 volts AC with unit turned on and gun trigger
closed
V10 2.9 to 15.4 volts DC with unit turned on, Wire Speed
control R2 from min. to max. with Voltage switch S2
in position 1
3.7 to 17.5 volts DC with unit turned on, Wire Speed
control R2 from min. to max. with Voltage switch S2
in position 2
4.5 to 19.9 volts DC with unit turned on, Wire Speed
control R2 from min. to max. with Voltage switch S2
in position 3
5.2 to 22.0 volts DC with unit turned on, Wire Speed
control R2 from min. to max. with Voltage switch S2
in position 4
5.9 to 23.6 volts DC with unit turned on, Wire Speed
control R2 from min. to max. with Voltage switch S2
in position 5
Handler 140
Resistance Values
a) Tolerance −  10% unless specified
b) Turn Off unit and disconnect input
power before checking resistance
R1-R8 All values for T1 are less than 1 ohm
R9 Less than 1 ohm with gun trigger pressed,
high resistance with gun trigger open
R10 Less than 1 ohm
R11 Less than 1 ohms at minimum position of
Wire Speed control R2, 50k ohms at
maximum position of R2
Wire Speed While Feeding*
Voltage
Wire Diameter Switch S2
And Type Position
.030/.035 Solid
1
or Flux Core
2
3
4
5
*All tests done with .030 solid wire, .030-.035 liner in
H-100 model 10 foot welding gun, smooth groove
drive roll.
Values are nominal depending on drive roll pressure
and spool hub tension.
Drive Motor RPM At No Load*
Voltage
Switch S2 Min.
RPM
Position
1 22
2 29
3 35
4 40
5 43
*All tests done with the pressure assembly
open, not feeding wire. Values are nominal.
Min. Max.
IPM IPM
55 412
75 500
97 528
118 586
134 704
Max.
RPM
123
141
160
176
187
230 952-A
TM-258 267 Page 21