Hobart Welding Products TM-944C manual Weld Parameter Chart For 115 VAC Model

Page 16

4-2. Weld Parameter Chart For 115 VAC Model

Welding

Guide

Settings are

approximate.

Adjust as

required.

Thicker

materials can

be welded

using proper

technique,

joint

preparation, and

multiple

passes.

Material

Wire

T ype,

Suggested

Diameter

Being

and

Shielding

Gas

of Wire

Welded

Polarity

Setting

20−30

cfh Flow Rate

Being Used

Steel

Flux

Core

No Shielding

Gas

Required

.030”

(0.8

mm)

E71T −1 1

Good

for

Windy

or

(DCEN)

Outdoor

Applications

.035”

(0.9

mm)

Solid

Wire

C25 Gas

Mixture

.024”

(0.6

mm)

ER70S−6

75%

Argon

/ 25%

CO2

(DCEP)

Produces

less

Spatter

.030”

(0.8

mm)

Better

Appearance

Solid

Wire

.024”

(0.6

mm)

ER70S−6

100%

CO2

(DCEP)

.030”

(0.8

mm)

Stainless

Stainless

.024”

(0.6

mm)

Steel

Steel

Tri−Mix

(DCEP)

90% He/7.5%

Ar/2.5%

CO2

.030”

(0.8

mm)

Aluminum

Aluminum**

100%

Argon**

.030”

(0.8

mm)

(DCEP)

Match feedroll groove			to	diameter	of	wire	being used.
Set	Tension	Knob		Setting	to 3 at		Start.
Adjust	tension	per	instructions		in	the	manual.

CAUTION!

Do not change Voltage Switch Knob position while welding.

**Aluminum

wire is relatively soft so feedability is not as good. Make sure that hub tension is not too tight and

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Contents Processes TM-944CDescription Table of Contents Symbol Usage − Safety Precautions for ServicingServicing Hazards California Proposition 65 Warnings EMF InformationRadiation can cause interference Overuse can cause OverheatingSpecifications − SpecificationsVAC Model Duty Cycle And Overheating OutputDuty Cycle % Output AmperesVolt-Ampere Curves − Installation Installing Welding Gun Installing Work ClampElectrode Negative For Flux Core Wire For Solid WireProcess/Polarity Table Changing PolarityInstalling Gas Supply Rating Label Grounded ReceptacleVolt, 20 ampere individual Up to 200 ft 61 mDo not move or operate unit where it could tip 18 in 457 mm of space for airflow= GND/PE L2 L1 230 VACElectrical Service Guide For 230 VAC Model Installing Wire Spool And Adjusting Hub Tension230 Reference 1996 National Electrical Code NECThreading Welding Wire Pressure Indicator ScaleBe sure that tip matches wire diameter Reinstall contact tip and nozzleVoltage Switch Power Switch− Operation ControlsWeld Parameter Chart For 115 VAC Model Starting Value only − Wire Speed Setting Can be Wire Speed Also Depends on Other variables Such Stick OutElectrode Positive For Solid Wire WhileWeld Parameter Chart For 230 VAC Model Listed Starting Value Only − Wire Speed Setting can be Metal Etc− Theory of Operation Block Wire Drive Motor Stablizer L1Main Polarity− Troubleshooting Troubleshooting TableGS1 if necessary Clear blockage in gunV8/R5 V9/R6 V10 V11/R9 TM-944030/.035 Solid 585Or Flux Core 640Test Equipment Needed Handler 135600 510700 Control Board PC1 Testing Information 115 VAC Model Control Board PC1 Test Point Values 115 VAC Model Circuit commonControl Board PC1 Testing Information 230 VAC Model Control Board PC1 Test Point Values 230 VAC Model − Maintenance Routine MaintenanceDisconnect power before maintaining Overload Protection Drive Motor ProtectionTurn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Disconnect gun from unit Cleaning Or Replacing Gun LinerTo Reassemble Gun Replacing Switch And/Or Head Tube − Electrical Diagrams Model Serial Or Style Number Circuit Diagram Wiring Diagram194 324-C 194 325-A 196 637-A 196 655-A 195 890-A 195 891-A Handler 135 H-10 Gun − Parts List 11 10Dia Part Mkgs Description Quantity Optional Options Optional Drive Rolls195 Hobart Welding Products