Section 6- Electrical Diagrams - MAC TOOLS MW145 Owner's Manual

SECTION 6- ELECTRICAL DIAGRAMS
Figure 6-1. Circuit Diagram For Welding
Power Source
RC2-2
>>L~
0C2-5
>>~
RC2-6
>>~L~~
RC2-
RC2-3>
RC2-4>
RC3-6>
RC3-5>
RC3-4>
RC3-2>
RC3-
I>
RC3-3>
r
p~o:~i ~
12>
(OPTIONAL)
PC21
H
<II
16>
-<21
II> ~<4l
13> <51
r
SPODLGUNREC~PTACLE
~
jR~G3 (OPTIONAL ___~~~~C1
5>
<21
14> <51
2> <31
Ii>
<41
3~
OM-173 123 Page
15
Wire
Drive/Gun Trouble
Remedy
Section
Electrode wire
feeding stops during
i.
-~
Straighten gun cable and/or replace damaged
parts.
-~
5-3
welding.
Adjust drive roll pressure.
-~
3-8
Readjust hub tension.
-~
3-8
Replace contact tip
if blocked.
~
5-3
Clean
or
replace
wire inlet
guide
or
liner if dirty
or
plugged.
~
5-2, 5-3
Replace drive roll
or
pressure
bearing if
worn or
slipping.
-~
5-2
Secure gun
trigger
leads
or
repair
leads,
or
replace trigger switch.
-~
3-6
Check and replace
motor
fuse Fl if
open.
-~
5-1 B
Check and clear any restrictions at drive assembly and liner.
-~
5-2, 5-3
Have nearest Factory
Authorized Service Station/Service Distrib-
-~
utor check drive motor.
PCI
CONTROL BOARD
RC I/PLC
RC2/PLC2
RC3/(PLG3)
0
0J 0 0 0
o Z,
0
22
00 0
fl
0 0 0 0 0 0
~
a 0 0 (4 0 ~) fl_i
(4
.04
0
0
WORK
TORCH
SB~172
399