Tweco FP-90 Manuel d'utilisateur

FP-90Gasless Welding System (FCAW)Instruction ManualFORM NO. 0056-1839 EFFECTIVE: July 2001Safety and OperatingInstructionsFor Your Safety . . .PLEASE

6The MIG gun on this unit is a “live” torch which is in the constant “ON” position.Touching the torch to a grounded surface will produce and arc which

Connection to Power SourceHigh voltage danger from power source! Consult a qualified electri-cian for proper installation of receptacle at the power s

Remove the contact tip and gun nozzle from the welding torch before starting thisprocedure.1. Loosen the nut of the spool holder (brake drum). Remove

3. Welding time is about 50% less compared to the normal electrode welding.4. The learning time for the operator is very short.5. Minimum waste of wel

The wire is pushed by a roll which is moved by a series of mechanisms. The roll has two grooves, one markedby 0.035” (0.9 mm) and the other marked by

start from a higher wire speed. This operation prevents damage to the contact tip duringwelding. During welding, keep the torch at a 45º angle from th

SELECTING WELDING CURRENT POLARITYUsing gas-shielded steel welding wire requires direct current (dc) reverse polarity. Self-shielding flux coredwires

2. Aluminum is often anodized to prevent oxidation. However, an anodized surface will NOT conduct electric-ity. Therefore, to weld anodized aluminum,

WORKPIECE CLAMP CONNECTIONConnect the workpiece clamp directly to the work piece as close to the weld as possible. If it is impractical toconnect the

LEARNING TO WELDWhether you have welded before or not, it is important that you become familiar with your new welder, itscontrols and the results achi

LAYING A BEADEXPOSURE TO WELDING ARC IS EXTREMELY HARMFUL TO THEEYES AND SKIN! Prolonged exposure to the welding arc can cause blindness andburns. Nev

There are two basic types of weld beads: the stringer bead and the weave bead.1. Form the stringer bead (see Figure 11) by travel-ing with the line wh

falling into the nozzle should it drip from the weld puddle. Holdangle B at 0º so that the wire is aiming directly into the weld joint.If the weld pud

2. The punch and fill method produces a weld with the most finished appearance. In this method, a hole ispunched or drilled into the top piece of meta

ADDITIONAL SAFETY INFORMATIONMake sure you read and understand all of the information and instructions contained in this manual BEFOREproceeding.The N

21PROBLEM1. Dirty, porous or brittle weld.2. Arc Works but is not feeding wire.3. When trigger pulled, there is no wirefeed, weld output or gas flow.F

FIREPOWER FP-150 MIG-GUN PARTS LISTINGModel No. Victor No. DescriptionFP150 1444-0600 Gun AssyFP21-50 1444-0601 NozzleFP11-30 1444-0602 Contact TipFP3

23Figure 21: FP-90

24ITEM NO. PART NO. DESCRIPTION QTY.1 1444-0425 SIDE LIFT PANEL 12 1444-0426 SLIDE CLIP 13 1444-0434 HANDLE 14 1444-0435 PLASTIC HINGE FOR SIDE PANEL

25Figure 22: FP-90 Wiring Diagram

Table of ContentspageIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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FIREPOWER LIMITED WARRANTYSCOPE OF LIMITED WARRANTY: Firepower, a division of Thermadyne Industries, Inc. (hereinafter,"Seller") warrants th

LIMITATION OF LIABILITY: Seller shall not, under any circumstances, be liable for special, indirect, inci-dental or consequential damages (regardless

pageTypes of Weld Beads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INTRODUCTIONThis User’s Guide provides specific information about your Firepower Welding System. This guide providespertinent information needed to sa

Indicates that the helmet must be worn during the step(s) that follow to protect against eye damageand burns due to flash hazard.Indicates that the po

IMPROPER HANDLING AND MAINTENANCE OF COMPRESSED GAS CYLINDERS ANDREGULATORS CAN RESULT IN SERIOUS INJURY OR DEATH! Reduce the risk of injury ordeath f

5. Remove all combustible materials from the work site. If you can not remove them, protect them with fire-proof covers.NEVER perform welding operatio

flux cored welding wire FCAW process. The use of shielding gas is not required for this welding process.Please refer to the instructions provided in t