Lincoln Electric IM607 Operating Steps, Welding in TIG Mode 2 Step, Welding in TIG Mode 4-STEP

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OPERATION

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7.MODE SWITCH - A three position toggle switch used to select the welding mode. Refer to WELD- ING IN THE STICK MODE, and WELDING IN THE TIG MODE(2-STEP AND 4-STEP) later in this sec- tion for information on how the machine functions in each of these modes.

STICK: This mode is used for the stick electrode (SMAW) welding process. In this position the only active control is the output current control. The out- put terminals are continuously energized.

2-STEP TIG: This mode is used for the TIG (GTAW) welding process. An Arc Start switch or Amptrol must be used to weld. The Down slope Time and Start/Crater Current controls have no

effect in this mode.

4-STEP TIG: This mode is used for the TIG (GTAW) welding process. An Arc Start switch or Amptrol must be used. All controls are active in

this mode.

8.CURRENT CONTROL - This control is active in both TIG and Stick modes. In Stick mode the current con- trol sets the welding current. In TIG mode this con- trol sets the maximum current. The Amptroltm will adjust the welding current from the machine mini- mum to this maximum setting.

9.DOWN SLOPE TIME - This control is active in the 4- STEP TIG mode only. It is used to set the amount of time the output takes to go from the preset level to the Crater current level. The adjustable range is approximately 0.5 to 10 seconds.

10.START/CRATER CURRENT - This control is active

Ain the 4-STEP TIG mode only. It sets the Start and Crater currents of the weld as a percentage of the peak current set with the Current control knob. If the Start current set is not above the minimum starting current of the machine or electrode the weld will not start. If this occurs increase the per- centage and try again.

OPERATING STEPS

WELDING IN TIG MODE (2 STEP)

In 2-STEP mode an Arc Start switch or Amptrol must be used. The switch or Amptrol is pressed to start the weld. (Step 1) Output continues at the level set with the Current control until the switch or Amptrol is released. (Step 2)

1.If connecting a Lincoln LA-9 or LA-17 TIG torch simply connect the Twistmate plug to the receptacle located on the front of the machine. See INPUT SUPPLY CONNECTIONS if another TIG torch is used.

2.Set the MODE switch to “2 STEP TIG”.

3. Set the Polarity Switch to DC- for weld- ing steel or stainless steel; or to AC for welding alu- minum.

4.Connect an Arc Start Switch or Amptrol to the Remote Control Connector.

5.Turn on the cylinder gas valve and adjust the flow regulator to obtain desired flow.

6.Turn the power switch to “ON - I”. NOTE: There will be a 15 second gas flow when the power is turned on.

7.Set the Current Control on the control panel to the maximum desired amps.

8.Depress the Arc Start Switch or amptrol to energize the torch and establish an an arc with the work piece.

NOTE: When the MODE switch is set to “2 STEP TIG”, depressing the remote control will start a 0.5 second gas pre-flow before energizing the

TIG torch. When the remote control is released the TIG torch is de-energized and gas flow will continue for a 15 second post flow. When the polarity switch is set to DC, the TIG Arc Starter will turn on and off automatically to start and stabilize the arc. In AC the TIG Arc Starter will turn on with the output and remain on continuously until the remote control is released.

WELDING IN TIG MODE (4-STEP)

In 4-STEP mode an Arc Start switch or Amptrol must be used. The switch or Amptrol is pressed and then released to start the weld cycle. Pressing and releas- ing the switch or Amptrol a second time ends the weld cycle. This eliminates the need to continuously hold down the switch or Amptrol during the weld. The process works as follows:

(STEP 1) First Press: Initiates a 0.5 second preflow of shielding gas and starts the weld at the Start cur- rent level set with the Start/Crater Current control. (Note: The Start current is determined by setting a peak current with the output control knob and then setting a percentage of that current with the Start/Crater Current control. IMPORTANT! THE WELD WILL NOT START IF THE START CURRENT IS SET BELOW THE MACHINES MINIMUM WELD- ING CURRENT. (Approx 10 Amps))

(STEP 2) First Release: The output ramps up to the preset level in 0.5 seconds.

SQUARE WAVE TIG 175

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Contents Square Wave TIG Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Square Wave TIG InstallationTilting Select Suitable LocationStacking Lifting and MovingInput Supply Connections Input Reconnect ProcedureWork Cable Connection Output ConnectionsConnections for TIG Gtaw Welding TIG Torch ConnectionRemote Control Connection Connections for Stick Smaw WeldingStick Electrode Cable and Work Cable Connection Included Equipment Safety PrecautionsOperation General DescriptionPower Switch & Light Turns power on Controls and SettingsWelding in TIG Mode 2 Step Welding in TIG Mode 4-STEPOperating Steps Benefits of the Square Wave Design Remote Control OperationGtaw Process Welding in Stick ModeRecommended Electrode Amperage Ranges Square Wave TIG Smaw ProcessOptional Accessories AccessoriesFAN Motor or FAN Blade Replacement MaintenanceSafety Precautions Routine and Periodic MaintenanceHOW to USE Troubleshooting Guide TroubleshootingSymptoms Possible AreasCourse of Action Troubleshooting Square Wave TIG APR96 TIG Mode ProblemsTIG Welding Problems Troubleshooting Field Service Facility for technical Symptoms Misadjustmentss Course of ActionWiring Diagram Square Wave TIG 175 240/380/415/1/50/60 Wiring DiagramDimension Print Square Wave TIG Square Wave TIG $700.00 Basic CoursePrecaucion Aviso DE
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