Input Connections - Lincoln Electric SP-100 Service Manual

A-5
WARNING
BUILDUP OF SHIELDING GAS may
harm health or kill.
• Shut off shielding gas supply
when not in use.
• SEE AMERICAN NATIONAL
STANDARD Z-49.1, "SAFETY IN
WELDING AND CUTTING" PUB-
LISHED BY THE AMERICAN
WELDING SOCIETY.
1. Chain the cylinder to a wall or other stationary sup-
port to prevent the cylinder from falling over.
Insulate the cylinder from the work circuit and earth
ground.
FIGURE A.5
Flow Regulator
Gas Hose
2. With the cylinder securely installed, remove the
cylinder cap. Stand to one side away from the out-
let and open the cylinder valve very slightly for an
instant. This blows away any dust or dirt which may
have accumulated in the valve outlet.
WARNING
BE SURE TO KEEP YOUR FACE AWAY FROM THE
VALVE OUTLET WHEN "CRACKING" THE VALVE.
Never stand directly in front of or behind the flow
regulator when opening the cylinder valve. Always
stand to one side.
SP-100
INSTALLATION
3. Attach the flow regulator to the cylinder valve and
tighten the union nut securely with a wrench. The
flow regulator for carbon dioxide must have a plas-
tic washer seated in the fitting that attaches to the
cylinder to prevent leakage.
4. Refer to Figure A.6. Attach one end of inlet gas
hose to the outlet fitting of the flow regulator and
tighten the union nut securely with a wrench.
Connect the other end to the SP-100 Gas Solenoid
Inlet Fitting (5/8-18 female threads — for CGA —
032 fitting). Make certain the gas hose is not
kinked or twisted.

INPUT CONNECTIONS

Refer to Figure A.6.
The SP-100 has two input connections, the power
input cable, and the Gas Solenoid Inlet Fitting. Both
connections are located on the rear of the machine.
Cylinder Valve
FIGURE A.6
Gas Solenoid
Inlet Fitting
Power
Input
Cable