Lincoln Electric 7FH manual

8)Back out the screws for the incoming and outgoing guide tubes.

9)Install the longer guide tube in the rear hole near the incoming drive roll. Slide the tube in until it almost touches the roll. Tighten in place.

10)Install the remaining guide tube in the front hole. Be certain that the proper plastic insert is used. Fine wire chisel point tube must have largest radius next to drive roll. Tighten in place.

11)Re-latch both quick release levers.

12)To start new electrode, straighten the first 6” (150mm) and cut off the first 1” (25mm). Insert free end through the incoming tube. Press gun trigger & push wire into the drive roll.

TO SET IDLE ROLL PRESSURE: See Idle Roll Pressure Setting, in Operating Instructions section.

Gun and Cable Assemblies with Standard L. E. Connections

GMAW Guns

An expanding line of Magnum gun and cable assemblies are available to allow welding with solid and cored electrodes using the GMAW process. See the appropriate Magnum literature for descriptions of the 200 to 550 ampere air cooled gun and cables that are available. Gun cable lengths range from 10 ft (3.0m) to 25 ft (7.6m) and feed electrode sizes .025” (0.6mm) to 5/64” (2.0mm). The entire line of Magnum Fast-Mate gun and cable assemblies can also be used by installing a K489-2 Fast-Mate adapter kit.

INNERSHIELD Guns

K126 and K115 gun and cable assemblies are available to allow welding with Innershield electrodes. Gun cable lengths range from 10 ft. (3.0 m) to 15 ft. (4.5 m). The 350 ampere K126 with Synergic 7F will feed electrode sizes .062” (1.6 mm) to 5/64” (2.0 mm). The 450 ampere K115 with Synergic 7F will feed 5/64” (2.0 mm) electrode.

Three smoke extraction gun and cable assemblies are available, 250 ampere K309, 350 ampere K206 and the 500 ampere K289. All gun and cable lengths are 15 ft. (4.5 m). Both the K206 and K309 with Synergic 7F will feed electrode sizes .062” (1.6 mm) to 5/64’ (2.0 mm). K289 with Synergic 7F will feed 5/64” (2.0 mm) electrode. These guns require the use of the K184 vacuum unit for use with Synergic 7F.

Gun Cable Connection:

Lay the cable out straight. Insert the connector on the welding conductor cable into the brass conductor block on the front of the Synergic 7F gearbox. Make sure it is all the way in and tighten the hand wheel. Keep this connection clean and bright. Connect the trigger control cable polarized plug into the mating 5 cavity receptacle on the front of the Synergic 7F Wire Feed Unit.

For GMA Gun Cables:

Install the barbed fitting and union nut to the 5/8-18 female inert gas fitting on the front of the Synergic 7F wire drive. Connect the 3/16” I.D. gas hose from the gun cable to the barbed fitting. When the gun is to be removed, this fitting can be easily detached by loosening the union nut.

Gun and Cable Assemblies with Fast- Mate Connections (Requires K489-2 Fast-Mate

Adapter Kit)

GMAW Guns

An expanding line of Magnum Fast-Mate™ air cooled and water cooled gun and cable assemblies are available to allow welding with solid and cored electrodes using the GMAW process. See the appropriate Magnum literature for descriptions of the 200 to 400 ampere air cooled gun and cables that are available, as well as the Magnum “Super Cool” 450 ampere water cooled gun and cable. Gun cable lengths range from 10 ft (3.0m) to 25 ft (7.6m) and feed electrode sizes .025” (0.6mm) to 5/64” (2.0mm).

An expanding line of Magnum X-Tractor gun and cable assemblies provides fume extraction capability for welding with solid and cored electrodes using the GMAW process. See the appropriate Magnum literature for descriptions of the 250 to 400 ampere air cooled gun and cables that are available. Gun cable lengths range from 10 ft (3.0m) to 15 ft (4.5m) and feed electrode sizes .035” (0.9mm) to 1/16” (1.6mm). These guns require the use of either the K173-1 or K184# vacuum units.

#Requires S14927-8 connector hose and an S20591 hose adapter.

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