Tweco 281 Thermal Arc Fabricator - Manual (Page 71)

FABRICATOR 281
April 10, 2006 A-5
Varistor
Inductor
+ C1 - C4
C5
CB2
- +
Wire Feeder Motor
4 x 22,
000uF
Bridge Rectifier
PLUGSOCKET
PLUGSOCKET
JB/6
F4
S4
SWITCH
POSITION
1
2
3
X
X
X X
X
X
1
2 6
5
4
3
8
9 7 11
10 12
SWITCH 2 COARSE
JB/8
WIRESPEED
1K
R1
JB/1 JB/2 JB/3
43 BLK
43A BLK
44 BRN
46 RED
45 VIO
47 GRY 48 ORN
49 BLU
49A BLU
51 ORN
50 VIO
52 BRN
52A BRN
53 WHT
57 VIO
55 BLK
SWITCH
POSITION
1
2
3
X
X
X X
X
X
1
2 6
5
4
3
8
9 7 11
10 12
SWITCH 3 FINE
5
6
4 X
X
7 X
8 X
X
X
X
X
X
X
X
X
X X
X
X
13
14 18
17
16
15
20
21 19 23
22 24
X
X
X
X
X
X
X
X
X
X
X1/1
X1/3
X1/2
X2/3
X2/2
X2/1
X3/4
X3/3
SHUNT
PCB 4
704883
X1/6
X1/5
X1/4
X1/3
DIG METER
X1/1
21 ORN
22 VIO
23 GRY
30A BRN
31B BLK
POWER SOURCE
WIREFEEDER
A
B
C
D
E
F
G
H
I
J
J1
18-1SF
5A
L1
68 ORN
Art # A-07465
POSITIVE
OUTPUT
TERMINAL
+
NEGATIVE
OUTPUT
TERMINAL
-
M I G T i m e r P C B
7 9 7 7 9 6 5 ( P C B 2 )
J C
M a i n P C B 7 9 7 7 9 6 4 ( P C B 1 )
M2
BR1
MIG GUN SWITCH
SPOOL
SPOOL
K3
MIG
MIG GUN