Hobart Welding Products 250 installation instructions M-25 Gun

Page 52

1 2 3 4 5 6

7

8

9

14

15

16	11
	13
	12
	10
	804 467-A

					Figure 8-5. M-25 Gun
Item		Dia.	Part		Description	Quantity
	No.	Mkgs.	No.		Description	Quantity
					Figure 8-5. M-25 Gun (Fig 8-1Item 22)

. . .	1 . . .	. . . . . .	. 200	258	. . NOZZLE, slip type .500 orf flush	. . . 1
. . .	1 . . .	. . . . . .	+169	724	. . NOZZLE, slip type .500 orf .125 recess	. . . 1
. . .	1 . . .	. . . . . .	+169	725	. . NOZZLE, slip type .625 orf .125 recess	. . . 1
. . .	1 . . .	. . . . . .	+169	726	. . NOZZLE, slip type .625 orf flush	. . . 1
. . .	1 . . .	. . . . . .	+169	727	. . NOZZLE, slip type .625 orf .125 stickout	. . . 1
. . .	2 . . .	. . . . . .	+087	299	. . TIP, contact scr .023 wire x 1.125
. . .	2 . . .	. . . . . .	+000	067	. . TIP, contact scr .030 wire x 1.125
. . .	2 . . .	. . . . . .	+000	068	. . TIP, contact scr .035 wire x 1.125
. . .	2 . . .	. . . . . .	+000	069	. . TIP, contact scr .045 wire x 1.125
. . .	3 . . .	. . . . . .	. 169	728	. . ADAPTER, contact tip	. . . 1
. . .	4 . . .	. . . . . .	. 169	729	. . ADAPTER, nozzle w/retaining ring	. . . 1
. . .	5 . . .	. . . . . .	. 170	468	. . O-RING	. . . 1
. . .	6 . . .	. . . . . .	. 169	730	. . WASHER, shock	. . . 1
. . .	7 . . .	. . . . . .	. 169	731	. . TUBE, head	. . . 1

OM-192 440 Page 48

Image 52

Contents OM-192 440W ProcessesDescription File MIG GmawFrom Hobart to You Table of Contents Warranty Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier LE Soudage peut provoquer un Incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesSpecifications Welding Power Source Duty Cycle And OverheatingExceeding duty cycle can damage unit and void warranty OverheatingVolt-Ampere Curves Welding Gun Duty Cycle And OverheatingDefinition Installing Welding Gun Connecting To Weld Output Terminals Installing Work ClampSetting Gun Polarity For Wire Type Installing Wire Spool And Adjusting Hub TensionInstalling Gas Supply Rear PanelPositioning Jumper Links VoltsElectrical Service Guide Hz SingleInput Voltage Min Grounding Conductor Size In AWGSelecting a Location And Connecting Input Power Threading Welding Wire WoodTurn Off unit, and disconnect input power OperationConnecting Spool Gun To Welding Power Source Turn Off unit− Operation ControlsWeld Parameters Voltage switch positionWhile welding Example 2/40 = To read settingsNumber on left of slash Routine Maintenance Disconnect power before maintainingSupplementary Protectors MonthsTurn Off power Replacing Drive Roll And Wire Inlet GuideRemoving Knob From Front Panel Turn Off power before replacing contact tip Replacing Gun Contact TipTurn off welding power source/wire feeder Wire size stamped on tip − check and match wire sizeReplacing Switch And/Or Head Tube Welding Troubleshooting Table Wire Drive/Gun Troubleshooting TableWire Drive/Gun Trouble Remedy Welding Trouble Remedy− MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsTypical MIG Process Control Settings Wire Size Amperage RangeThickness to Amperage a AmperageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Spatter Troubleshooting − PorosityTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Waviness Of Bead Troubleshooting − DistortionTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feedCommon MIG Shielding Gases ApplicationWelding arc not stable Wire slipping in drive rolls OM-192 440 − Electrical Diagram − Parts List REGULATOR/FLOWMETER, 10−50 CFH ARGON/CO2 Center Baffle w/Components Center Baffle w/Components -1Item Rear Panel w/Components Front Panel w/Components M-25 Gun Optional Spool Gun Switch Description RemarksPage Support ServiceAssistance Contact your Distributor for Hobart Welding Products