Miller Bobcat 250 Diesel Owner's Manual page 62

12-2. Electrode And Amperage Selection Chart
3/32
1/8
6010
5/32
&
3/16
6011
7/32
1/4
1/16
5/64
3/32
1/8
6013
5/32
3/16
7/32
1/4
3/32
1/8
5/32
7014
3/16
7/32
1/4
3/32
1/8
5/32
7018
3/16
7/32
1/4
3/32
1/8
5/32
7024
3/16
7/32
1/4
3/32
1/8
Ni-Cl
5/32
3/16
3/32
1/8
308L
5/32
12-3. Striking An Arc
OM-258413 Page 58
6010
6011
6013 EP,EN
7014 EP,EN
7018
7024 EP,EN
NI-CL
308L
*EP = ELECTRODE POSITIVE (REVERSE POLARITY)
EN = ELECTRODE NEGATIVE (STRAIGHT POLARITY)
1
2
3
1
2
3
EP ALL DEEP
MIN. PREP, ROUGH
HIGH SPATTER
EP ALL DEEP
ALL LOW GENERAL
SMOOTH, EASY,
ALL MED
FAST
LOW HYDROGEN,
MED
EP ALL
STRONG
SMOOTH, EASY,
FLAT
LOW
HORIZ* FASTER
EP ALL LOW CAST IRON
EP ALL LOW STAINLESS
!
Weld current starts when elec-
trode touches workpiece.
1 Electrode
2 Workpiece
3 Arc
Scratch Technique
Drag electrode across workpiece like
striking a match; lift electrode slightly
after touching work. If arc goes out,
electrode was lifted too high. If elec-
trode sticks to workpiece, use a quick
twist to free it.
Tapping Technique
Bring electrode straight down to
workpiece; then lift slightly to start
arc. If arc goes out, electrode was
lifted too high. If electrode sticks to
workpiece, use a quick twist to free it.
Ref. S-087 985-A
S-0049 / S-0050