Connect Shielding Gas - Lincoln Electric IDEALARC SP-250 Service Manual

A-4
For the 230/460/575V/ 60 HZ model which is not
equipped with a plug, an input cord, or a receptacle,
the input power supply leads are connected directly to
the Reconnect Panel as shown Figure A.3. Refer to the
specifications table at the beginning of this chapter for
proper wiring sizes.
1. Connect the input power leads to terminals L1 and
L2 on the Reconnect Panel Assembly.
a. For input power supply leads of 10 AWG or
smaller, connect leads to Reconnect Panel
using the ferrules (S19117-1) provided.
b. Strip fi" (13mm) of insulation from the input
power supply leads.
c. Place ferrule over wire.
e. Torque the terminal screws to 16 in.-lbs.
(1.8nm).
FIGURE A.3 - Ground Connection For 230/460/575
Volt Models

CONNECT SHIELDING GAS

Customer must provide cylinder of appropriate type of
shielding gas for gas metal arc welding for the process
being used. See Figure A.4 for the location of the com-
ponents used to connect the air supply cylinder.
WARNING
GAS UNDER PRESSURE IS EXPLO-
SIVE. ALWAYS KEEP GAS CYLIN-
DERS IN AN UPRIGHT POSITION AND
ALWAYS KEEP CHAINED TO UNDER-
CARRIAGE OR STATIONARY SUP-
PORT.
____________________________________
INSTALLATION
1. Set the gas cylinder on the rear platform of the SP
250.
2. Hook the chain in place to secure cylinder to rear
of welder.
3. Remove the cylinder cap.
4. Inspect the cylinder valves for damaged threads,
dirt, dust, oil or grease.
a. Remove dust and dirt with a clean cloth.
NOTE: DO NOT ATTACH THE REGULATOR IF OIL,
GREASE OR DAMAGE IS PRESENT! Inform your
gas supplier of this condition. Oil or grease in the pres-
ence of high pressure oxygen is explosive.
5. Stand to one side away from the outlet and open
the cylinder valve for an instant to blow away any
dust or dirt which may have accumulated in the
valve outlet.
BE SURE TO KEEP YOUR FACE AWAY FROM THE
VALVE OUTLET WHEN OPENING THE VALVE.
6. Inspect the regulator for damaged threads, dirt,
dust, oil or grease.
a. Remove dust and dirt with a clean cloth.
NOTE: DO NOT USE THE REGULATOR IF OIL,
GREASE OR DAMAGE IS PRESENT!
authorized repair station clean the regulator or repair
any damage.
7. Attach the flow regulator to the cylinder valve and
tighten the union nut(s) securely with a wrench.
a. NOTE:
100% CO2 cylinder, insert regulator adapter
provided between regulator and cylinder valve.
If adapter is equipped with a plastic washer, be
sure it is seated properly to connect to the
CO2 cylinder.
8. Connect one end of the inlet gas hose to the outlet
fitting of the flow regulator.
9. Connect the other end of the inlet gas hose to the
SP-250 rear fitting.
10. Tighten both the union nuts securely with a
wrench.
IDEALARC SP-250
If connecting the flow regulator to
A-4
Have an