Connection Of Lincoln Electric Wire Feeders - Lincoln Electric RANGER 250 SVM150-A Service Manual

C-3
CONNECTION OF LINCOLN
ELECTRIC WIRE FEEDERS
WARNING
ELECTRIC SHOCK can kill.
• Do not operate with panels open.
• Disconnect NEGATIVE (-) BATTERY
LEAD before servicing.
• Do not touch electrically live parts.
MOVING PARTS can injure.
• Keep guards in place.
• Keep away from moving parts.
• Only qualified personnel should install,
use or service this equipment.
CONNECTION OF THE RANGER 250 TO
WIRE FEEDERS USING K867 UNIVERSAL
ADAPTER (SEE FIGURE C.1)
NOTE: When you use the Ranger 250 with non-Lincoln
Electric wire feeders or with certain earlier models of
Lincoln wire feeders, you will require the K867
Universal Adapter. The following discussion and con-
nection diagram explain in general how to make the
proper connections.
1. Shut the welder off.
2. Connect the electrode cable from the wire feeder to
the "+" terminal of the welder. Connect the work
cable to the "-" terminal of the welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
FIGURE C.1 – RANGER 250/K867 UNIVERSAL ADAPTER CONNECTION DIAGRAM
14-PIN
AMPHENOL
+ –
ELECTRODE CABLE
ACCESSORIES
K867 UNIVERSAL
ADAPTER PLUG
TO WORK
TO WIRE FEED UNIT
RANGER 250
3. Connect the K867 Universal Adapter to the 14-pin
amphenol of the Ranger 250 as shown in Figure
C.1. Make the proper connections for local or
remote control according to Figure C.1 and the fol-
lowing NOTES, indicated on the figure:
A. These leads are not used for the Ranger 250.
Insulate each unused lead individually.
B. For wire feeders that return a signal for welding
output, use an isolation relay to close leads 2
and 4.
C. Refer to the Operation section of this manual
for maximum wire feeder auxiliary current draw.
4. Set the "MODE" switch to the "CV-WIRE" position.
5. Place the "IDLER" switch in the "AUTO" position.
CAUTION
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control cir-
cuits may be damaged. The engine governor setting is
preset at the factory – do not adjust above RPM spec-
ifications listed in this manual.
6. Set the "VOLTMETER" switch to "+" or "-" depend-
ing on the polarity chosen.
7. Set the ARC control to "0" initially and adjust to suit.
8. Adjust wire feed speed at the wire feeder.
C
C-3
A
B