Lincoln Electric 125 HD Welder

  • Last Updated on April 27, 2024

Wiki

Location

Metal Working Area

This is a training-required piece of equipment. This page is meant as a refresher for trained individuals.

Ownership

Denhac

Specs

  1. Make: Lincoln
  2. Model: HD 125
  3. Year: ??
  4. Description/Purpose: Two metals bits become one.
  5. Dimensions: Short x Stout
  6. Weight: < 50 lbs

Accessories

  • Uses proprietary Lincoln parts often under the Magnum brand. This one’s extra special as it’s a Home Depot featured product. Some accessories, such as nozzle, and tip, are readily found at Home Depot and appear NOT to be commonly found at the local welding supply store.
  • We have parts for wire sizes .025, .030, and .035
  • Use only 75/25 Ar/CO2 gas mix

Upgrades

  • This model, when outfitted stock, is configured for FCAW (gasless) welding. The previous owner or Denhac added a solenoid and piping to accept gas. This model and its accessories accept this upgrade by design; no-warranty voiding or overly ambitious hacks were made (to our knowledge)

Pending Repairs

  • None

Usage/Guidelines

Power-up

  1. Apply PPE.
  2. Ensure wire is present and being fed through MIG gun.
  3. Open the gas cylinder valve slowly and completely until the valve stops at maximum “open.” Ensure at least 100PSI in cylinder.
  4. Power on. Minimize wire feed speed and adjust gas flow regulator to 25 CFH. Don’t let the feeding wire touch anything during this process.
  5. Attach work clamp, knob in the correct settings, and lighting gun to victory.

Remember: This is a training-required piece of equipment

Two bottles of MIG gas are in the metal shop for member use. One should be connected to the MIG welder at all times, and the other is strapped to the south wall on the floor between the door and the drill press.

WHEN YOU CHANGE BOTTLES YOU HAVE TO POST IN #help-metalwork ON SLACK SO THAT WE CAN REFILL THE EMPTY BOTTLE.

When you are done welding you should close the output valve, but closing the upstream regulator valve is unnecessary.

Power-down

  1. Power off, unplug.
  2. Close the dang cylinder. Gas is money.
  3. Clean the tip of the MIG nozzle using the MIG pliers. Replace damaged bits and consumed consumables.
  4. Neatly store cables and relevant welding tools on cart.
  5. Tuck MIG away and sing it a lullaby.

Files/Links

Intro to MIG welding Training

[file: userManual.pdf] Additional Reading Link

Tags:
Table of Contents