Tweco 350 4R Wirefeeder - Manual (Page 58)

weldskill 250, 350 appendix
Appendix A-6 Manual 0-5182
20V
20V
DC
L
V1 V4
V2
V3
V5
V6
R1
100/
40
W
C1 100n
/1
KV
KM
-1
KM
-2
KM
-3
S1
TC
415V
FU
1
3A
- +
27V
FS
FU
2
8A
18
17
KM
-4
1
2
CN
5
1 2 3
CN
1
1 2 3 4
CN
3
Po
we
r in
di
ca
to
r
Sp
ot
36V
KM
Sp
ot
ti
me
r
100K
0V
19
23
28
29
31
31 32
26
LE
D1
VR
2
Th
er
mo
st
at
1
I.P.
S
TC
Ga
s
va
lv
e
S3
33
1 2 3 4
CN
4
1 2
CN
2
1 2 3 4 5 6 7 8
CN
6
1
2
3
CN
8
1
2
3
CN
9
Ov
er
he
at
LE
D2
Gu
n
T.
S
1
2
3
4
CN
7
17
18
Mo
to
r po
we
r
2
8 9 10 11 6 7 20
A
21
A
21
72
15
25
24
345
22
D
13 14
22C
22
A
22
B
21
B 21
C
20
B 20
C
20
D
16
1
0
Bu
rn
ba
ck
100
K
VR
3
Sp
ot
sw
itch
/4
T
4T
12
53
64
Sp
ot
sw
itch
30
415V 415V 415V
Th
er
mo
st
at
2
27
21
D
220
V
30
W V U
C1
C2
C3
C4
C
C5
C6
C7
S1
S2
C8
C9
B1
B2
B3
B4
B
B5
B6
B7
B8
B9
A1
A2
A3
A4
A
A5
A6
A7
A8
A9
TR
1
SW
IT
CH
S4 8
79
YV
20
D4
3
M _
R2
0.
5Ω
/3
0W
S4
-4
11
12 10
22B
40
We
ld
ing
cu
rre
nt
po
te
nt
io
me
te
r
5K
VR
1
21
C2
2C
S4
3
44
45
5
46
2
13
36V
42
46
47
41
21
B
20
D2
5
CONTROL PCB
Art # A-09927_AB
APPENDIX 4:
WELDSKILL 350 MIG POWER SOURCE CIRCUIT DIAGRAM