Welding Operation - Lincoln Electric RANGER SVM120-A Service Manual

B-10

WELDING OPERATION

GENERAL INFORMATION
WARNING
• Do not touch electrically live parts or elec-
trodes with your skin or wet clothing.
• Do not breathe welding fumes or gases.
• Use ventilation or exhaust to remove
welding fumes from the breathing area.
• Keep flammable material away.
• Wear eye, ear, and body protection.
The RANGER 10-LX can deliver from 45 to 250 amps
of constant current for AC/DC stick welding or from 45
to 250 amps of constant voltage current for DC semi-
automatic wire feed welding. AC/DC TIG welding is
possible across the entire range from 45 to to maxi-
mum rated output. Output can be adjusted by setting
the POLARITY SWITCH, the OUTPUT RANGE dial,
and the FINE CONTROL dial on the output control
panel to the settings that are best for your selected
welding process.
FIGURE B.4 – WELDING CIRCUIT CONNECTIONS FOR STICK WELDING
OPERATION
To use the RANGER 10-LX for AC/DC
Constant Current Stick Welding:
1. Remove the flange nuts from output terminals and
place the work and electrode welding cables over
the terminals. See Figure B.4. Replace and tight-
en the flange nuts securely. Be sure the connec-
tions are tight.
2. Select the appropriate electrode. See "Welding
Tips 1" included with your RANGER 10-LX.
3. Attach the work clamp securely to the work you
are welding.
4. Insert the electrode into the electrode holder.
5. Set the IDLER CONTROL to AUTO and start the
diesel engine. See Engine Operation in this sec-
tion of the manual.
6. Set the OUTPUT RANGE dial to a setting equal to
or slightly higher than the welding current recom-
mended for the electrode being used.
7. Set the POLARITY SWITCH to the desired polarity.
8. Set the FINE OUTPUT CONTROL. Use a setting
that results in the highest output at the lowest set-
ting of the RANGE switch for the application.
9. Strike an arc and begin welding.
After you finish welding:
1. Stop the diesel engine. See Engine Operation in
this section of the manual.
2. Allow the electrode and work to cool completely.
3. Remove the work clamp from the work.
4. Remove any remaining piece of electrode from the
electrode holder.
5. If you are finished using the RANGER 10-LX for
welding, disconnect the welding cables from the
weld output terminals. Reattach the flange nuts
and leave them on the terminals.
1. OUTPUT CONTROL PANEL
2. ELECTRODE CABLE
3. ELECTRODE HOLDER
4. ELECTRODE
5. OUTPUT TERMINALS
6. WORK
7. WORK CLAMP
8. WORK CABLE
RANGER 10-LX
B-10