Lincoln Electric 7FH manual Gun Cable Connections Wire Feeder to Gun, Gmaw Shielding Gas

Gun Cable Connections: Wire Feeder to Gun

a.Check that the drive rolls, feeder guide tubes and gun connector guide tube are appropriate for the electrode size being used. If necessary, change them per section on Wire Feed Drive Roll and Guide Tube Kits.

b.Connect gun to gun connector making sure all pins and gas tube line up with appropriate holes in connector. Tighten gun by turning large nut on gun clockwise.

Synergic 7F Water Connections (for Water-Cooled Guns)

The Synergic 7F models must have a K682-2 Water Connection Kit installed. (see section under Electrical Installation; Water Connection Kit.

1)Using hose clamps provided with the K682-2 Kit, connect appropriate water hoses to the coolant inlet and outlet fittings on the back of the K682-2 Kit. Connect the other ends of the hoses to the appropriate ports on the water cooling units.

2)In the event the water line fittings on your water-cooled gun are incompatible with the female quick connects on the front of the K682-2 Kit, male quick connects are provided with the kit for installation on 3/16” I.D. hose (Customer to provide appropriate clamps). The feeder connectors self seal when disconnected.

GMAW Shielding Gas

WARNING

CYLINDER may explode if damaged.

• Keep cylinder upright and chained to

support.

• Keep cylinder away from areas where it may be damaged.

•Never lift welder with cylinder attached.

•Never allow welding electrode to touch cylinder.

•Keep cylinder away from welding or other live electrical circuits.

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” PUBLISHED BY THE AMERICAN WELDING SOCIETY.

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Customer must provide a cylinder of shielding gas, a pressure regulator, a flow control valve, and a hose from the flow valve to the gas inlet fitting of the Synergic 7F Wire Feed Unit.

Connect a supply hose from the gas cylinder flow valve outlet to the 5/8-18 female inert gas fitting on the back panel of the Synergic 7F or, if used, on the inlet of the Gas Guard regulator. (See Below).

Gas Guard Regulator - The Gas Guard Regulator is an optional accessory (K659-1) on these models.

Install the 5/8-18 male outlet of the regulator to the 5/8-18 female gas inlet on the back panel of the Synergic 7F. Secure fitting with flow adjuster key at top. Attach gas supply to 5/8-18 female inlet of regulator per instructions in the Gas Connections Section.

95 MAR – 16 –