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Forney 235 - User Manual

Forney 235
80 pages
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235 AC/DC ARC WELDER
OPERATING MANUAL
FEATURES:
Dinse style connectors allow for easy cable
replacement and polarity change
Power cable, ground cable, and electrode holder
are all 15’ providing a large working envelope
Welds up to 1/2” AC / 3/8” DC metal
SPECIFICATIONS:
Power: 235 Amp AC @ 20% Duty Cycle
Weight: 116 Lbs. (52.63 Kg)
Max. OCV: 72 VAC / 63 VDC
Main Voltage: 230V (60Hz)/48.5A
Duty Cycle: 150A @ 50% AC / 135A @ 35% DC
Output Range: 45A - 235A AC / 45A - 185A DC
IDEAL FOR:
Maintenance and Sheet Metal Fabrication, Agriculture,
Automotive, Contractors, Repair, Hobbist, and More...
INCLUDES:
Input power cable, Ground cable and clamp, Electrode
holder and cable
*Wheel and handle kit purchased separately (CAT #329)
CAT# 314
ENGLISH
REV 10.27.15

Table of Contents

Questions and Answers

  • S
    Samuel KimAug 17, 2025
    Why does my Forney 235 overheat and blow fuses?
    • D
      davidsonanitaAug 17, 2025
      Your Forney Welding System might be overheating and blowing fuses due to several reasons: * The fan blade may be obstructed or not turning, so clear any obstructions or replace the fan motor. * The fan might be turning too slowly because of misaligned bearings, so replace the fan motor and bearings. * The amperage fuse in the fuse box could be incorrect, so replace it with a 50 amp fuse or breaker.
  • A
    Allison PierceAug 19, 2025
    What to do if Forney 235 gives shocks?
    • B
      Brittany HarrisonAug 20, 2025
      If your Forney Welding System is giving shocks, it could be due to: * Incorrect connections at the power cord or receptacle, where the hot wire is connected to the ground terminal. In this case, rewire the power cord receptacle. * The welder being wired to 3-phase current. Make sure to check the power source.
  • K
    kperryAug 23, 2025
    What to do if my Forney Welding System hums but will not weld?
    • G
      greencharleneAug 23, 2025
      If your Forney Welding System hums but won't weld, the issue could be due to: * Inadequate power at the receptacle, so check the power supplies. * Inadequate current at the arc. Inspect the ground clamp cable and its connection to the workpiece, as well as the electrode cable and clamp at the electrode. * Poor connections at the welder. Check the ground clamp cable and connection to the workpiece, and the electrode cable and clamp at the electrode.
  • W
    William WilliamsAug 26, 2025
    How to fix a Forney 235 when the arc is hard to strike?
    • R
      Robert WuAug 26, 2025
      If you're finding it hard to strike an arc with your Forney Welding System, it could be due to: * Using the wrong type or size of electrode. Verify you are using the correct electrode type and size for your application. * The base metal not being grounded properly. Make sure to verify the grounding. * Low voltage from the power line due to heavy loads. Contact your power company to verify the voltage and increase it if possible.
  • M
    Mr. Steve JonesAug 28, 2025
    Why does my Forney Welding System electrode stick to work?
    • M
      melissabriggsAug 28, 2025
      The electrode might stick to the work because it is held in contact with the base metal while the arc is struck. Move the electrode away from the base metal immediately after the arc is struck.
  • T
    Thomas RobinsonAug 31, 2025
    Why is my Forney Welding System not humming when turned on?
    • M
      matthew80Aug 31, 2025
      If your Forney Welding System isn't humming when turned on, there could be several reasons: * There's no power at the receptacle. Check the circuit and fuses or circuit breakers back at the meter. * The power cord is broken or damaged. Replace the power cord. * The switch is faulty and needs to be replaced. * The transformer is faulty and needs to be replaced.
  • M
    Michelle TannerSep 2, 2025
    Why is there poor electrode performance with my Forney 235 Welding System?
    • D
      Donald OdomSep 3, 2025
      Poor electrode performance, such as sputtering and sticking, in your Forney Welding System can be caused by: * Damp electrodes: Store electrodes in a dry location. * Wrong type of electrode: Use the correct electrode.
  • L
    Linda CaseySep 5, 2025
    What causes a bead to be too thick in places when using a Forney 235?
    • M
      Mr. Darryl Dominguez DDSSep 5, 2025
      A bead that's too thick in places when using your Forney Welding System is caused by holding the electrode too long in one place or moving it too slowly across the base metal. To fix this, speed up and maintain a uniform rate of speed along the bead.
  • W
    William FrazierSep 8, 2025
    Why is the Forney 235 Welding System heat setting difficult to adjust?
    • M
      mheathSep 8, 2025
      If the heat setting on your Forney Welding System is difficult to adjust, it could be due to dust or dirt moving inside the transformer. Try cleaning the shunt track.
  • T
    Trevor JacobsSep 12, 2025
    Why are there ragged depressions at the edge of weld with Forney 235?
    • R
      Randall MeyersSep 12, 2025
      Ragged depressions at the edge of a weld when using the Forney Welding System are caused by moving the electrode too rapidly or holding too short an arc. Slow down and lengthen the arc slightly.

Summary

Safety Summary

Personal Protection and Hazards

Eye, Skin, and Respiratory Protection

Details protection against arc rays, fumes, gases, and vapors, and associated risks.

Fire Prevention

Preventing Fires and Explosions

Outlines measures to prevent fire and explosion risks during welding operations.

Electrical and RF Hazards

Electric Shock and High Frequency Radiation

Addresses dangers of electric shock and interference from high frequency radiation.

Power Source Connection

Electrical Connection Safety

Ensures safe electrical connection by emphasizing power switch off and proper grounding.

Operation: Welding Process

Operation: Settings and Practice

Welding Preparation and Positions

Welding Execution

Grounding, Amperage, and Electrode Selection

Details ground clamp connection, selecting amperage, and choosing the correct electrode.

Arc Striking and Bead Control

Arc Welding Techniques

Maintenance and Troubleshooting

Forney 235 Specifications

General IconGeneral
BrandForney
Model235
CategoryWelding System
LanguageEnglish

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