Lincoln Electric SVM188-A Service Manual page 31

C-3
The MULTI-PROCESS SWITCH has two sets of output
terminals. You connect the wire feeder unit cables to
the set of terminals on the left side of the box and the
stick or air/carbon arc cables to the set of terminals on
the right side (facing the front of the machine) as
shown in Figure C.1. The output terminals are protect-
ed against accidental contact by hinged covers.
When the MULTI-PROCESS SWITCH is in the "Stick
or Air/Carbon Arc" position, only those terminals are
energized. The wire feeder nozzle or gun and electrode
are not electrically "hot" when in this mode.
Follow these steps to install the MULTI-PROCESS
SWITCH:
1. Confirm that the DC-600 POWER ON/OFF switch
is in the OFF position.
2. Disconnect main AC input power to the DC-600.
3. Open the terminal strip hinged cover located on
the Case Front Assembly.
4. The MULTI-PROCESS SWITCH is mounted to the
case front with four 1/4" self-tapping screws. The
screw holes are 13.8" apart side to side and 4.5"
apart top to bottom, Run one of the 1/4" screws
part way in and out of the screw holes to open
them up. Make sure that the two sleeved control
leads do not get pinched when hanging the switch;
route them out the side to the right of the switch.
Support the switch in position and start the four
screws, then tighten them.
5. Route the MULTI-PROCESS SWITCH control
leads through the strain-relief box connectors and
into the terminal strip. Connect wire feeder control
cable as specified in specific connection diagram
and make other terminal strip connections as
specified on the connection diagram for the Lincoln
wire feeder being used.
6. Connect the control leads from the MULTI-
PROCESS SWITCH to terminals #2 and #4 on the
DC-600's terminal strip.
7. Connect the right cable from the MULTI-
PROCESS SWITCH (facing the front of the
machine) to the DC-600 positive (+) output termi-
nal. See Figure C.2.
ACCESSORIES
21+
NEGATIVE (–)
OUTPUT
STUD
ELECTRODE
CABLE
WIRE
FEEDER
WORK
CABLE
FIGURE C.2 - MULTI-PROCESS SWITCH
CABLE CONNECTIONS.
8. Connect the left cable from the MULTI-PROCESS
SWITCH (facing the front of the machine) to the
DC-600 negative (-) output terminal. See Figure
C.2.
9. Connect the wire feeder electrode and work
cables. See Figure C.2.
• Insert the wire feeder electrode and work cables
through the strain relief loop on the left side of the
DC-600 (facing the front of the machine).
• Connect the wire feeder electrode and work cables
to the electrode and work terminals on the left side
of the MULTI-PROCESS SWITCH.
10. Connect wire feeder control cable and make other
terminal strip connections as specified on the con-
nection diagram for the Lincoln wire feeder being
used.
11.
Set the DC-600 OUTPUT TERMINALS switch to
REMOTE.
DC-600
21- 41 4 2 31 32
75 76 77
+
–
ELECTRODE
WORK
+
STICK AIR/CARBON
ARC WELDING
EQUIPMENT
ELECTRODES
JUMPER (IF NEEDED
SEE INSTRUCTIONS)
C-3
TERMINAL
STRIP COVER
BOX
CONNECTOR
CONTROL
LEADS
POSITIVE (+)
OUTPUT
STUD
CABLE
WORK
CABLE