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Effective With Serial No. KA870779 MODEL: MW 4110 MW 4230 OWNERS MANUAL IMPORTANT: Read and understand the entire of this with contents manual, MILLER ELECTRIC Mig. special emphasis material before safety throughout manual, AM~G~Ud..Corr~any Installing, operating, This unit and these...
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ARE UMITED TO THE REMEDY PROVIDED BY THIS LAW, original purchaser of this Welder. WARRANTY. TO THE EXTENT ENFORCEABLE UNDER MILLER ELECTRIC SHALL LAW, APPUCABLE of MILLERs EVENT BE LIABLE FOR CONSEQUENTiAL, INCIDENTAL breach of case any other duty...
OM.1128750-e,gO RECEIVING-HANDLING Before record the Model unpacking equipment, check carton for any dam- Use the following Designa spaces age that may File any tion and Serial Style Number of your unit. The have occurred dunng shipment. infor claims for loss damage with the delivering...
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Page Section SECTION 6- SEQUENCE OF OPERATION Gas Metal 6-1. Welding (GMAW) 6-2. Shutting Down MAINTENANCE & TROUBLESHOOTING SECTION Routine Maintenance 7-2. Overload Protection 7-3. Replacing Drive Roll 7-4. Replacing Pressure Bearing 7-5. Wire Inlet Guide Replacing 7-6. Realigning Drive Housing 7-7.
WELDING OPERATION SECTION SAFETY RULES FOR OF ARC POWER SOURCE INTRODUCTION 1.1. welding cutting, (and chipping) protect eyes from radiant energy and metal. Replace flying cover We learn by experience. Learning safety through glass when broken, pitted, spattered. -3A.2. sonal child experience, like...
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menfas~ recommended in A6.O. Waterfilling below minute amounts just atmospheres ~,containing even perchloroØthylene. inerting. working level may substitufe trichioroethylene should be cleaned A container with unknown contents Fire Explosion Prevention Do NOT depend (see preceding paragraph). on sense Causes combustibles reached of fire and explosion are:...
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Prohibited use.~Never cylinder outlet from peo.ple ignition. Wipe contents use a away sources other than its intended NEVER ~with clean lintless support c~om. as a use, roller. Before Match regulator cylinder. connecting, check be knocked Locate cylinders they cannot that the label and regulator cylinder marking...
WELDING 1-3. .Viewirig weld. PrOvide face shields for all persons the weld. who will be looking rectly. Comply with this section. precautions 1-1, 1-2, Others See that all persons working wearing Welding, properly done, safe process, but area. flash goggles. careless invites trouble.
HOTtiy electrically shock, Welding stray current possibly used with shielded power sources Do NOT GROUND tally. electrical conduit, pipe metal welding (SMAW) and similar proc orto carrying flammable eq~uipped liquid such fuel. with welding esses power on-off control devices. With such output equip Three-phase...
St~ndard ~rorn ANSI Z49.2, FIRE PREVENTION IN Compressed Association, 1235 Jef OF CUTTING WELDING PROC ferson Davis Suite 501, Highway, Arlington, ESSES obtainable from the American National 22202. Standards Institute, 1430 Broadway, York, CSA Standard W117.2, CODE FOR SAFETY NV 10018. WELDING CUTTING obtainable from AWS Standard...
~Referio VOLT-Aii~lPERE Cycle 3-1. CURV~S (Chart 3-1) Duty Charts (Chart 3-2) to determine various output of the welding duty power source RATED OUTPUT cycles. IMPORTANT: Decreasing welding amperes increases show the minimum and maxi volt-ampere curves duty cycle. capabilities of the voltage output amperage...
CAUTION: EXCEEDING THE RATED AM weldi~ig factory equipped with power source PERAGE WITH OR FAILING TO RE (3 m) input power cord and built-in gas valve. WELDING DUCE THE AMPERAGE OR DUTY CYCLE WHEN USING A MIXED SHIELDING 3-5. ADDITIONAL REQUIRED EQUIPMENT (Fig result In damage...
~Jlre Spool OPTIONAL EQUIPMENT 3-6. Selection of the wire is correct welding important This unit with styles equipped running Metal Arc Welding (GMAW). There types many ordered with the unit, running gear. gear run- wire from which choose, but certain wires best Owners Manual...
4-1. SITE SELECTION (FIgure 3-1) Reguttor/Flowm.eter (Customer Supplied) (Fig. ure4-1) Select installation site which provides following: With the cylinder securely installed, remove Correct input supply (see unit nameplate) cylinder cap, stand side of power cylinder valve, and open valve slightly. When gas flows from...
su~pIied Slide piece insulating sleeve onto Lockout/taggingprocedures consist of removing work cable. input from plug receptacle, padlocking power line disconnect switch position, open remov fuses from fuse box, shutting off and red Place work cable inside the handle of the work tagging circuit breaker other...
WELDING 4-5. GUN INSTALLATION insert the connector, and (Figures receptacle, rotate collar clckwise. 4-4) fully WARNING: ELECTRIC SHOCK kill. 4-6. WELDING WIRE SPOOL INSTALLATION not touch live electrical parts. (Figure 4-4) Shutdown welding powersource, and discon Open left side door. nect input employing lockout/tagging...
4110 models have duty cycle (2 minutes WARNING: ELECTRIC SHOCK kill. minutes be used for welding); every therefore, touch live, electrical parts. supplied cord and attached with NEC plug comply not connect input conductor standards for 20% duty cycle. that the building sure ground...
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WELDING dnv~e WIRE rolipressurØ puncture just tightly enough cause prevent HOT SURFACES wounds; can cause severe the wire from slipping against drive roll dur on or burns. ing operation. until instructed trigger press gun CAUTION: EXCESSIVE DRIVE ROLL TEN. SION equipment damage cause...
SECTION OPERATOR CONTROLS Fine Tuning/ Wire Speed Power Control Switch Thicknessivoits Switch Gun Switch T8-112 g43-A Receptaci. Figure Operator Controls 5-1. ARCING POWER SWITCH (Figure 5-1) CAUTION: damage contact 5-1. surfaces. POWER of THICKNESS! change position VOLTS switch while welding under load.
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SECTION 6- SEQUENCE OF OPERATION WARNING: ELECTRIC SHOCK kill; Wear dry insulating gloves clothing. MOVING PARTS serious Injury; can cause polarity changeover links desired sure IMPROPER AIRFLOW AND EXPOSURE TO position (see Section 4-4). ENVIRONMENT damage Internal parts. not touch live electrical Select welding...
6-2. SHUTTING DOWN valve. Close gas cylinder CONCENTRA11ON OF WARNING: HIGH Stop welding. SHIELDING GAS harm heafth kill. Shut off gas supply when Place POWER switch position. use. Table 6-1. Suggested Welding SettIngs MW 4110 Models GMAW Material ThIckness OPerator Shielding Control ~_______...
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GMAW And FCAW MW 4230 Models Material Thickness Wire Wire )Derator Type, Control Shielding Diameter Gas, 1/8 In. 3/16 In. 1/4 In. And Flow Rate (Inch) Settings (6.4 mm) (4.8 mm) (3.2 mm) Range .023 Feed 100% Speed* E7OS-6 Range .030 Feed Speed...
TROUBLESHOOTING SECTION MAINTENANCE & ROUTINE MAINTENANCE clean, airstream (Table 7-1) outer enclosure, or vac use a suction for the cleaning operation. dusty dirty IMPORTANT: the labels Ever, six months inspect clean the unit monthly. conditions present, this unit legibility. precautionary labels must maintained...
OVERI~.OAD 7-2. PROTECTION Lbckoutitaggingproceduresconsistof removing from input plug powr receptacle, padlocking Short Circuit Shutdown line disconnect switch in open position, remov fuses from fuse box, off and red shutting The unit is protected from damage to contact tube circuit breaker tagging other disconnecting...
inlet.~uide securing REPLACING PRESSURE BEARING (Figure Loosen wire 7.4. screw. 7-1) from drive housing, and in Remove inlet guide stall guide. WARNING: ELECTRIC SHOCK kill. touch live electrical parts. should be installed IMPORTANT: Wire inlet guide them. the drive rolls possible without touching...
.~Hub Support Standoff Wire Drive Mounting Motor Control Board PCI Wire Drive Motor Ref. SO-log 354-E Figure 7-2. Motor Control Board PCi Replacement WARNING: ELECTRIC SHOCK kill. Remove wrapper. touch live electrical parts. Remove terminal from terminal header housing PCi. Shut down welding powersource, and discon...
accumu~ation Remove around the switch. Remove nozzle... Cutoff any portion of the electrode wire which Repair all hose and cab replace required tends end of tube. beyond give particular attention to frayed I~ng. insulation and where it cracked enters area Remove contact tube and replace...
install corftact tube. Itis assumed that the installed accord upitwas properly Section of this is familiar manual, operator Reinstall nozzle. function of with the controls; welding power source Reinstall gun wire drive assembly. working properly, and that the trouble is related process.
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Table 7-2. TroubleshootIng TROUBLE PROBABLE CAUSE REMEDY No weld wire does Power Secure receptacle. output; cord plug plug secure feed. wall receptacle. circuit Line fuse circuit breaker Replace line fuse reset breaker. open. Section Thermal overload. Allow cooling period (see 7-2).
Circuit SC-i Diagram 37 798 Diagram 8-3. Circuit Diagram For MW Control Board PCI 4110 Motor No. SC-i 37 801 Circuit Diagram For MW 4230 Models Motor Control Board PCI Diagram 8-4. Circuit Diagram OM-112 Page...
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1 3 2 - B S C - 1 1 9 D i a g r a m C O R D W i r i n g M o d e l s 4 1 1 0 D i a g r a m W i r i n g 8-5.
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7 4 4 - C S C - i D i a g r a m W i r i n g M o d e l s M W - 4 2 3 0 D i a g r a m W i r i n g 8-6.
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TROUBLESHOOTING ~SECTION WELDING TECHNIQUES & CAUTION: WELDING CURRENT the helmet and before lowering pressing the gun seam age vehicle and other elec components trigger. tronic components. Disconnect both battery cables before weld vehicle. on a Place work the weld clamp close possible avoid...
Direction of Arc Tray Direction of Arc Travel Backhand Forehand Technique Technique 9-4. Gun Positions Figure LongitudInal The vertical up and/or vertical down drag technique generally techniques describe plete weld penetration. in the vertical the direction of travel when the welding be done when...
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~..Posslble Correct~ve Causes Actions nozzle: shieldin Remove from the Inadequate spatter g gas coverage. Check gas hoses for leaks. Eliminate drafts blowing into (from fans, doors, etc.) open welding arc. 5/16 in. from worlcpiece. Place nozzle 114 tO (6-8 Increase flow displace all air from the weld...
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Corrective Causes Actions Clean weld surfaces of oil, impurities (grease, moisture, rust, paint, dirt, etc.) prior welding. Select adjust FINE TUNING/ higher voltage range WIRE SPEED control. technique. When weaving technique dwell momentarily using side walls of the groove. Provide improved at root joints.
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Cracks Weld Metal Possible Causes Corrective Actions Material thick. Joint design improper joint preparation. preparation must be ade the b~):\om of the groove while provide quate access wire characteris maintaining welding extension proper tics. Select Heat input high causing excessive lower voltage and reduce wire...
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SECTION 10- AUTO BODY REPAIR APPLICATION CAUTION: WELDING CURRENT Clamp metal place, and prepare spot vehicle and other electronic computers weld. components. Place the VOLTAGE ADJUSTMENT switch in the Disconnect cables before weld both battery position. vehicle. on a Install the nozzle the gun.
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Car-and door panel reinforcement, break .welded place. body manufacturers have the outer welded in different places. it will be necessary the we(~ panels detet~nine where the welds inspect body Grind the old off the hem flange remove in each After the old panel removed, cated...
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(I) m C, -l 0 z Cl) -I 11-3 8 9 7 ~ B 1 1 - 4 S D - 1 1 2 & i l l u s t r a t e d ) 4 2 3 0 ( A u t o A s s e m b l y M a i n...
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Quantity Model Item Dia. Part Description Mkgs. MW 4110 MW 4230 Figure 11-1. Main Assembly GA-16C GUN, (Fig 11-5) 089899 LATCH 112814 LABEL,AutoArcMW4llO(Ieftside) LABEL, Auto Arc MW 4230 (left side) 134 464 LABEL, warning general precautionary WRAPPER +111 833 LABEL,AutoArcMW4llO(rightside) 112813 127991 LABEL,...
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Quantity Model Item Dia. Part Description Mkgs. MW 4110 4230 Figure 11-1. Main Assembly (Continued) ~~44 PLG1 113494 CORDSET,pwr300Vl4ga3/c7ft PLG1 127933 CORDSET,pwr300Vl2ga3/c6ft BUSHING, strain relief .240/.510 ID .875 hole 112 811 LABEL, Auto Arc emblem 116 996 VALVE, 115VAC custom port 128 751 23OVAC...
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