Lincoln Electric IM812-A manual Safety Precautions, Power Source Connection

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INSTALLATION

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SAFETY PRECAUTIONS

WARNING

The electrode circuit (including welding wire, wire drive and welding gun) is electrically hot when the welding power source is on. The gun trigger controls wire feed only.

Disconnect or shut off welding power source before making connections or installations to the LN-35.

The LN-35 should be positioned upright on a horizontal surface.

WARNING

ELECTRIC SHOCK can kill.

•Do not touch metal portions of the LN-35 clamp when welding power source is on.

POWER SOURCE CONNECTION

The LN-35 can be used with any DC welding power source. A constant voltage power source is recommended; however, the LN-35 can also be used with a constant current power source as long as the open circuit voltage is less than 110V DC.

The power source output will be electrically “hot” at all times when the power source is turned on.

See the power source instruction manual for proper power source connections and setting required.

WARNING

ELECTRIC SHOCK can kill.

•Do not operate with covers removed.

•Turn off power source before installing or servicing.

•Do not touch electrically hot parts.

•Turn the input power to the welding power source off at the fuse box before working in the terminal strip.

•Only qualified personnel should install, use or service this equipment.

DC-250

a. Connect a jumper from 2 to 4 on the power source terminal strip so the output will be energized when the DC-250 is turned on.

b. Connect electrode cable to the “Innershield/ GMAW” output terminal of polarity required by electrode. Connect work lead to other “Innershield/GMAW” output terminal.

c.Place “Set to CV Electrode Cable Polarity” switch at appropriate position.

d.Place power source toggle switch in “Output Control at DC-250” position, unless a Remote Control is connected to 75, 76 and 77 on the DC- 250 terminal strip.

e.Place mode switch in “Innershield GMAW (CV)” position. Set CV arc control to “2” (or “NORMAL” on some machines) . Initially set the output control on “7”.

DC-400 AND CV-400

a. Connect a jumper from 2 to 4 on the power source terminal strip so the output will be energized when the power source is turned on.

NOTE: DC-400 machines above Code 9200 have an output toggle switch to perform this function.

b. Connect the electrode cable to the output terminal of polarity required by electrode . Connect work lead to other output terminal.

LN-35

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Contents LN-35 CV/CC Semiautomatic Wire Feeder California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Installation Power Source Connection Safety PrecautionsINVERTEC, CV300 and Other Newer Lincoln Power Sources GUN Cable Connection to FeederCV Adapter Changing Drive Rolls for TWO- Roll Wire Feeders Drive Roll InstallationWeld Cable Connection Electrode Cable ConnectionGeneral Description OperationRecommended Processes and Equipment Welding CapabilityAdjustable Wire Reel Brake Wire Reel Loading 50 and 60 LBWork Clip Lead To Mount a 50 or 60 LB CoilLoading Wire Drive Idle Roll Pressure SettingPresetting Wire Feed Speed Setting Constant Wire Feed Speed CV ModeSetting ARC Sensing Wire Feed Speed VV CC Mode Making a Weld Figure B.4 Vvcc Wire Speed SettingProcedure AT END of Coil Automatic Protection Shutdown Overvoltage ShutdownMotor Overload Shutdown Maintenance Routine MaintenanceCircuit Protection and Automatic Shutdown Calibration of LN-35 Wire Speed Dial Adjusting Speed Sensor ModuleHOW to USE Troubleshooting Guide TroubleshootingContact your local Lincoln Your local Lincoln Authorized Wiring Diagram LN-35 DiagramsLN-35 Precaucion Warnung
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