Forney 420 Manuel utilisateur

Connect to input power

* TIG Torch sold separately

4. 6.

Choose between High Frequency (HF) start

or Lift start.

Adjust amperage per

material thickness

Connect TIG torch lead

to gas (100% Argon)

Connect TIG torch and

ground clamp

ELECTRODE IS ALWAYS ELECTRICALLY

HOT WHILE IN TIG MODE

FIND MORE INFORMATION AT

FORNEYIND.COM

TIG TROUBLESHOOTING TIPS

Welder should be the only thing plugged into the circuit.

Frequently tripping circuit breaker or exceeding

duty cycle

TIG QUICK START GUIDE

220 AC/DC WELDER

ITEM# 420

Read user manual

Select process

EN_v1

TIG Torch Ground

Clamp

• Generator OK with continuous output >

5,000 W (120V) or 10,000 W (230V)

• Extension cord: #12 AWG (120V) or #8

AWG (230V) or larger. 25’ (8m) or shorter

extension cords recommended

To ensure maximum quality, always clean

and prepare welding surfaces.

Workpiece Preperation

Connect ground clamp to clean, bare metal. No rust,

paint or other coatings. Attach the ground clamp

directly to the workpiece if you are experiencing issues.

Workpiece grounding

Low weld output or poor fusion

• Usually due to low input power.

• Welder should be only thing plugged into circuit.

• Avoid using extension cords. If one must be used, it must be 3 conductor #8 AWG.

• Generators must be a minimum 10,000W continuous output with no low-idle

function (or low-idle off), 5% THD Max.

208-240V

• Usually due to low input power.

• Welder should be only thing plugged into circuit.

• Avoid using extension cords. If one must be used, it must be 3 conductor #12 AWG

or larger up to 25 feet

• Generators must be a minimum 5,000W continuous output with no low-idle function

(or low-idle off), 5% THD Max.

Low weld output or poor fusion

110-120V

QUESTIONS OR TROUBLE? Contact Forney Industries at 1-800-521-6038 [email protected]

forneyind.com

STICK TROUBLESHOOTING TIPS

*Performance may vary by brand

Connect to input power Recommended electrodes

4. 6.

Adjust amperage per

settings chart on the

welder

Connect electrode

holder and ground

clamp according to

desired polarity

Usually

DCEP -

Electrode

Positive

Use 3/16” diameter electrodes or smaller. Some 3/16” will draw too

much amperage.

Trying to weld single pass on material larger than 3/8” thick is not

possible with this machine. Multi-pass recommended for thicker

materials.

Welder should be the only thing plugged into the circuit.

Frequently tripping circuit breaker or exceeding

duty cycle

STICK QUICK START GUIDE

220 AC/DC WELDER

ITEM# 420

Read user manual

Select process

EN_v1

Electrode Holder Ground

Clamp

Electrode Electrode Amperage

3/32” 1/8” 5/32”

E6010

E6011

E6013

E7014

E7018

E308L

Ni55

30-75 75-125 110-165

40-85

40-90

70-90

65-100

40-70

50-65

75-125

70-110

90-140

110-165

75-115

80-95

110-165

115-140

140-190

150-220

105-160

110-135

• Generator OK with continuous output >

5,000 W (120V) or 10,000 W (230V)

• Extension cord: #12 AWG (120V) or #8

AWG (230V) or larger. 25’ (8m) or shorter

extension cords recommended.

QUESTIONS OR TROUBLE? Contact Forney Industries at 1-800-521-6038 [email protected]

forneyind.com

To ensure maximum quality, always clean

and prepare welding surfaces.

Workpiece Preperation

Connect ground clamp to clean, bare metal. No rust,

paint or other coatings. Attach the ground clamp

directly to the workpiece if you are experiencing issues.

Workpiece grounding

• Usually due to low input power.

• Welder should be only thing plugged into circuit.

• Avoid using extension cords. If one must be used, it must be 3 conductor #12 AWG

or larger up to 25 feet.

• Generators must be a minimum 5,000W continuous output with no low-idle function

(or low-idle off), 5% THD Max.

Low weld output or poor fusion

110-120V

Low weld output or poor fusion

• Usually due to low input power.

• Welder should be only thing plugged into circuit.

• Avoid using extension cords. If one must be used, it must be 3 conductor #8 AWG.

• Generators must be a minimum 10,000W continuous output with no low-idle

function (or low-idle off), 5% THD Max.

208-240V

FIND MORE INFORMATION AT

FORNEYIND.COM

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