Identify Welding Machines, Leads, Clamps, and Consumables

A. Finished-Project Specification

Outcome: one fully identified and inspected welding station — power source, electrode lead, work lead, holder or gun, work clamp, wire feeder and gas system where applicable, and consumables — with every defect recorded, every unsafe component tagged out of service, and a completed and signed equipment-readiness form. No welding is performed as part of this chapter's finished work, aside from the brief instructor-authorized test weld described in Section I.

B. Station Component Schedule

Component	Quantity	Identification Required	Inspection Condition
Power source	1	Manufacturer, model, serial number, input rating, output range, process capability, duty cycle	Case, feet, handles, vents, cord, plug, and strain relief sound and undamaged
Electrode lead	1	Traced from machine terminal to holder, gun, or torch	Insulation intact along full traced length; connectors sound and fully engaged
Work lead	1	Traced from machine terminal to work clamp	Insulation intact along full traced length; connectors sound and fully engaged
Electrode holder / gun / torch	1	Matched to the station's approved process	Jaws, insulation, spring tension, handle, trigger or switch, neck, nozzle, collet, or cap intact
Work clamp	1	Matched to the station's cable size and current range	Jaw condition, spring pressure, cable attachment, and contact area free of damage and contamination
Wire feeder (where present)	1	Drive-roll groove matched to wire type and diameter	Rolls, tension adjustment, inlet guide, liner, and spool hub or brake functional
Gas system (where present)	1	Gas type matched to process and consumable	Cylinder secured upright; regulator, flowmeter, hose, and fittings undamaged and compatible
Consumables	As staged	Classification, diameter, and condition matched to package label	Dry, clean, correctly stored, and free of mixed identification

C. Inspection Takeoff

• Reference documents: the machine operator manual and data plate for the specific station being inspected.
• Consumable labels: manufacturer package labels for every electrode, wire, tungsten, or filler rod staged at the station.
• Recording materials: the equipment-readiness form, out-of-service tags for defective components, and a pen or marker.
• Consumables used: none beyond the brief instructor-authorized test weld in Section I, which uses matching identified scrap and an approved practice electrode or wire in the quantity the responsible person directs.
• Fastener and hardware schedule: not applicable. This chapter produces a documented equipment-readiness record, not a fastened assembly.

D. Acceptance Standards

Check	Standard
Power source identification	Manufacturer, model, serial number, input rating, output range, process capability, and duty cycle recorded from the data plate and manual
Leads	Electrode lead and work lead traced end to end with intact insulation and sound connectors along the full length
Holder / gun / torch	Matched to the approved process, with all process-specific components inspected and undamaged
Work clamp	Jaws, spring, cable attachment, and contact area free of damage and contamination; will attach to clean sound metal close to the work
Wire feeder / gas system	Drive rolls matched to wire; gas type, regulator, flowmeter, hose, and fittings compatible and leak-checked where connected
Consumables	Every consumable identified by classification, diameter, and condition against its package label; no loose or mixed-identification material in use
Defects and tagging	Every identified defect recorded; every unsafe component tagged out of service and excluded from the authorized station
Authorization	Equipment-readiness form completed and signed by the responsible person before the machine is energized for practice or project welding

E. Power Source Identification

1. Identify the machine manufacturer, model, serial number, input rating, output range, process capability, and duty cycle. Record each value exactly as printed on the data plate.
2. Locate the operator manual and machine data plate. Confirm the manual matches the model shown on the data plate.
3. Identify the power switch, disconnect, output terminals, polarity markings, controls, display, alarms, and cooling openings. Point to and name each item before proceeding.
4. Identify whether the power source is transformer, inverter, constant current, constant voltage, multiprocess, or another approved type. Record the type from the manual, not from appearance alone.
5. Do not open the machine enclosure or remove service panels. Stop and tag the machine for qualified service if enclosure access appears necessary.
6. Inspect the case, feet, handles, vents, cord, plug, strain relief, and input connection. Record any damage, looseness, or missing hardware.

F. Lead, Holder, and Work-Clamp Inspection

1. Identify the electrode lead and work lead. Confirm each lead's identity against the machine's output terminal markings.
2. Trace each lead from machine terminal to holder, gun, torch, or work clamp. Follow the full physical length by hand and by eye.
3. Inspect lead insulation for cuts, burns, crushed sections, exposed conductor, taped repairs, and overheated connectors. Record the location of any defect found.
4. Inspect lugs, twist-locks, terminals, strain reliefs, and connector engagement. Confirm every connector is fully seated.
5. Identify the SMAW electrode holder, GMAW or FCAW gun, or GTAW torch associated with the station. Confirm the component matches the station's approved process.
6. Inspect holder jaws, insulation, spring tension, handle, trigger, switch, cable, neck, nozzle, collet, cap, or other process components. Record condition for each part present.
7. Inspect the work clamp for jaw condition, spring pressure, cable attachment, heat damage, contamination, and contact area. Confirm the clamp will grip clean sound metal firmly.
8. Clean the clamp contact faces where permitted. Use the approved method and confirm improved contact after cleaning.

G. Wire Feeder and Gas System Identification

1. Identify the wire feeder, drive rolls, tension adjustment, inlet guide, liner, gun connection, spool hub, and brake where applicable. Skip this step and record "not applicable" for stations without a feeder.
2. Identify gas cylinder, label, chain, valve, regulator, flowmeter, hose, solenoid, and torch or gun connection where applicable. Skip this step and record "not applicable" for stations without a gas system.
3. Verify the gas is correct for the approved process and consumable. Compare the cylinder label against the process and consumable manufacturer information.
4. Inspect cylinder security, regulator condition, hose damage, and fitting compatibility. Confirm the cylinder is upright, chained or otherwise secured, and free of impact damage.

H. Consumable Identification

1. Identify approved SMAW electrodes by classification, diameter, coating condition, storage, and package label. Skip and record "not applicable" if SMAW is not the station's approved process.
2. Identify approved GMAW or FCAW wire by classification, diameter, spool, condition, and manufacturer information. Skip and record "not applicable" if GMAW/FCAW is not the station's approved process.
3. Identify approved GTAW tungsten and filler rod by type, diameter, color code or marking, package, and condition. Skip and record "not applicable" if GTAW is not the station's approved process.
4. Do not use loose unidentified consumables. Tag and set aside any consumable that cannot be matched to a package label.
5. Inspect consumables for moisture, rust, dirt, oil, damaged coating, kinks, contamination, or mixed classification. Record condition for each consumable staged at the station.
6. Identify polarity requirements from the consumable and process information. Record the required polarity on the equipment-readiness form.
7. Identify recommended starting parameter range without yet energizing the machine. Record the range from the consumable manufacturer or approved procedure.

I. Final Verification and Authorization

1. Verify the work clamp will attach to clean sound base metal close to the practice area. Confirm the intended attachment point matches Chapter 1's cleaned work-surface zone.
2. Confirm leads and hoses can reach without tension, sharp bends, hot surfaces, or trip hazards. Walk the intended cable path from machine to work location.
3. Check machine cooling clearances and duty-cycle limitations. Confirm nothing blocks the machine's vents or cooling openings.
4. Verify the station has approved tools, spare contact tips, nozzles, collets, cups, brushes, and setup items. Confirm each item present matches the station's approved process.
5. Record all equipment defects and remove unsafe components from service. List every defect found in Sections E through H on the equipment-readiness form.
6. Tag equipment that requires qualified repair. Attach an out-of-service tag and note the required repair before the component may return to service.
7. Complete the equipment-readiness form with machine, leads, clamp, holder or gun, gas, consumables, and approved process. Confirm every field in Section D is addressed.
8. Obtain authorization before energizing the station. Present the completed form to the responsible person for review and signature before any brief test or practice weld.