Volt-Ampere Curves; Installing Work Cable And Clamp; Installing Welding Gun - Miller Millermatic 251 Owner's Manual

4-4. Volt-Ampere Curves

35
30
25
20
15
10
5
0
0 100

4-5. Installing Work Cable And Clamp

Tools Needed:
3/4 in

4-6. Installing Welding Gun

200 300
AMPERES
2
3
1
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1
1
The volt-ampere curves show the
normal minimum and maximum
voltage and amperage output
capabilities of the welding power
source. Curves of other settings fall
between the curves shown.
400
1
2
Route cable through front panel
opening. Slide boot onto work
cable.
3
Connect cable to terminal and
cover connection with boot.
Close door.
1
1
2
3
Loosen securing knob. Insert gun
end through opening until it bottoms
against drive assembly (make sure
gun end does not touch drive rolls).
Tighten knob.
4
3
Insert plug into receptacle, and
tighten threaded collar.
Close door.
4
2
Normal Volt-Ampere Curves
ssb1.1 10/91 − 196 844 / S-0700
Work Cable
Boot
Negative (−) Output Terminal
Ref. 802 474-E
Drive Assembly
Gun Securing Knob
Gun End
Gun Trigger Plug
Ref. 802 064-D
OM-1326 Page 11