Lincoln Electric IM467-B manual Accessories, K870 Foot Amptrol or K963 Hand Amptrol

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TROUBLESHOOTING

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed throughout this manual.

ACCESSORIES

 

SYMPTOM

 

CAUSE AND REMEDY

 

 

K870 Foot Amptrol or K963 Hand Amptrol.

 

 

 

 

Amptrol does not control welder output with

1.

Check continuity between pins D and E in the cable connec-

 

 

Current Control switch in REMOTE and

 

tor. There should be an open circuit when the Amptrol is not

 

 

Mode switch in TIG.

 

pressed and a short circuit when it is pressed part way. If this

 

 

 

 

is not the case, check the Amptrol cable for breaks. The

 

 

 

 

microswitch in the Amptrol may not be operating properly.

 

 

 

 

Repair or replace as necessary.

 

 

 

2.

Using an ohmmeter, check the resistance between pins A

 

 

 

 

and B in the Amphenol connector. The resistance should be

 

 

 

 

10K ohms when the pedal is up, and near zero ohms when

 

 

 

 

the pedal is fully depressed. An open circuit would indicate a

 

 

 

 

bad cable or defective potentiometer. Check for breaks and

 

 

 

 

repair or replace the damaged cable or potentiometer.

 

 

 

 

 

 

 

K814 Arc Start Switch

 

 

 

 

Arc Start Switch does not start welder output

1.

Check continuity between pins D and E of the cable

 

 

in TIG Mode and LOCAL Current Control.

 

connector. There should be an open circuit when the switch

 

 

 

 

is not pressed, and a short circuit when the switch is

 

 

 

pressed.

 

 

 

 

Check the cable for breaks, and repair or replace as

 

 

 

 

necessary. Check the switch and its connections.

 

 

 

2.

Be sure the 2-Step/4-Step Switch is set correctly.

 

 

 

 

 

 

 

K846 Interface Kit

 

 

 

 

Solid State Relay Module output does not close

1.

Is the correct type of solid state relay module installed? AC

 

 

when corresponding Status PC board LED lights.

 

modules work only for AC circuits, and DC modules only for

 

 

 

 

DC circuits.

 

 

 

2.

Is the corresponding fuse (F1 for CR1, F2 for CR2, etc.)

 

 

 

 

blown? If so, find cause and replace with a 4 amp fuse.

 

 

 

3.

Are the Interface and Status PC boards correctly mated to

 

 

 

 

one another? Be sure that all 10 pins on P701 are inserted

 

 

 

 

into J602 on the Status PC board.

 

 

 

4.

Is harness connector P601 plugged into J701 on the

 

 

 

 

Interface PC board?

 

 

 

5.

Is Terminal Strip (TS701) wired correctly (terminals 3 and 4

 

 

 

 

for CR1, terminals 5 and 6 for CR2, etc.)?

 

 

 

6.

Is DC polarity of terminal strip connection correct? Odd num-

 

 

 

 

bers (+), even numbers (–).

 

 

 

7.

Defective solid state relay. Replace.

 

 

 

 

 

 

 

Solid State Relay Module output seems to

1.

High Frequency pickup may be a problem. Reroute leads

 

 

make contact at wrong times.

 

going to Interface terminal strip away from welding cables

 

 

 

 

which carry high frequency.

 

 

 

2.

Use shielded cables to make connections to the Interface PC

 

 

 

 

board terminal strip. Ground the shield to terminal 1 or 2 on

 

 

 

 

TS701.

 

 

 

3.

Be sure that the white ground lead is on the Interface PC

 

 

 

 

board tab terminal and is connected to the welder chassis

 

 

 

 

screw.

 

 

 

 

 

 

SQUARE WAVE TIG 355

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Contents Square Wave TIG Safety Electric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Thank You Table of Contents Section D Section CSection E P196 SeriesTechnical Specifications Square Wave TIG InstallationSafety Precautions Select Suitable LocationHigh Frequency Interference Protection Ground Connection Input ConnectionsInput Supply Connection Electric Shock can killFigure A.2 Input Supply Connections Reconnect ProcedureTable A.2 Recommended Input Wire and Fuse Sizes Table A.1 Recommended Input Wire and Fuse SizesVolt/Freq Nameplate AWG Copper Cond Volt/Freq AC Output AWG Copper CondTIG Torch Connection Output ConnectionsLengths up to 100 to 200 ft 200 to 250 ft 100 ft 30 m 30 to 61 m 61 to 76 mStick Electrode Cable Connection Operating Instructions Safety InstructionsDesign Features and Advantages Operational Features and ControlsGeneral Description Recommended ProcessesLimitations Welding CapabilityUpper Case Front Controls Controls and SettingsSTEP/4-STEP Switch Mode SwitchHigh Frequency Switch Upper Case Front Control PanelPeak Current Control VOLTS/AMPS SwitchAC Wave Balance Auto Balance LEDSpot Controls Pulse ControlsStart Controls Crater Fill Controls Figure B.2 Status Indicator Light Sequence Square Wave TIGOperation Figure B.3 Lower Case Frontcontrols Square Wave TIG Lower Case Front ControlsOperation Hand and Foot Amptrol Operation Operation Initial START-UP Welding OperationStick Welding TIG Welding GuidelinesTable B.1 Specific Effects of Controls Illustrated in the 2-Step Mode for clarityOFF Crater Fill Switch onPulse Switch on Crater Fill Switch on Start Switch onSpot Switch OFF Spot Switch onDcen Dcep + Unbalanced Wave Balanced Wave Table B.2 Typical Current RANGES1 for Tungsten ELECTRODES2TIG Welding Sequence Operation 4-STEP Mode TIG Welding Sequence Operation 2-STEP ModeTable B.3 Recommended Settings for TIG Welding Polarity SwitchAuxiliary Power Overload ProtectionALL Machines OPTIONS/ACCESSORIES AccessoriesInput Power Factor Capacitor Discharge Procedure MaintenanceRoutine and Periodic Maintenance Figure D.2 General Component Locations General Machine Trouble Troubleshooting GuideSymptom Cause and Remedy Troubleshooting Guide Stick WeldingTroubleshooting Guide TIG Welding TIG Welding Lower Panel Controls K870 Foot Amptrol or K963 Hand Amptrol AccessoriesDiagrams Dimension Print Square Wave TIG355 Equipment MANUFACTURER’S Certification Equipment Installation CertificationPage Precaucion Aviso DE
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