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A complete Parts List is available at www.MillerWelds.com

OM-254915 Page 54

7-5. Replacing Hub Assembly

Ref. 255 371-B / Ref. 255 371-B

Remove gun top cover and release

pressure arm.
Retract wire onto spool and remove

spool. Take hub apart as shown.
1

Plastic Brake Washer

Fiber Washer

Brake Washer

Hub

Keyed Washer

Spring

Flat Washer

Cap Screw

Retaining Ring

Replace broken or worn parts and

slide parts onto shaft as shown.
Adjust hub tension and thread

welding wire. Close and latch door.
Close gun pressure roll assembly

and reinstall gun cover.

Tools Needed:

7/16 in.

Содержание Millermatic 350P

Страница 1: ...um Processes Description R Arc Welding Power Source and Wire Feeder OM 254915E 2020 09 MIG GMAW Welding Pulsed MIG GMAW P File MIG GMAW For product information Owner s Manual translations and more vis...

Страница 2: ...roducts continue the tradition They re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929 This Owner s Manual is designed to he...

Страница 3: ...ult Weld Parameters And Settings 11 4 4 Specifications 11 4 5 Duty Cycle And Overheating 12 4 6 Volt Ampere Curve 12 4 7 Millermatic 350P Aluminum Differences vs Standard Millermatic 350 350P 13 SECTI...

Страница 4: ...er Hold 44 6 13 Arc Control 45 6 14 System Menu 46 6 14 1 Arc Hours 46 6 14 2 Arc Starts 46 6 14 3 User Interface Software Version 46 6 14 4 Control Software Version 46 6 14 5 Gun Calibration 46 6 14...

Страница 5: ...low ing electrically hazardous conditions are present in damp locations or while wearing wet clothing on metal structures such as floors gratings or scaffolds when in cramped positions such as sitting...

Страница 6: ...ot possible tightly cover them with approved covers D Do not weld where flying sparks can strike flammable material D Protect yourself and others from flying sparks and hot metal D Be alert that weldi...

Страница 7: ...o move unit be sure forks are long enough to extend beyond opposite side of unit D Keep equipment cables and cords away from moving vehicles when working from an aerial location D Follow the guideline...

Страница 8: ...uments Website www global ihs com National Electrical Code NFPA Standard 70 from National Fire Protection Association Website www nfpa org and www sparky org Safe Handling of Compressed Gases in Cylin...

Страница 9: ...e n cessaire se servir de la fonction de t l commande si l appareil en est quip D D autres consignes de s curit sont n cessaires dans les condi tions suivantes risques lectriques dans un environnement...

Страница 10: ...e La projection d tincelles des pi ces chaudes et des quipements chauds peut provoquer des incen dies et des br lures Le contact accidentel de l lectrode avec des objets m talliques peut provoquer des...

Страница 11: ...ant de mettre l appareil en service LA CHUTE DE L QUIPEMENT peut provoquer des blessures D Utiliser l anneau de levage uniquement pour soulever l appareil NON PAS les chariots les bouteilles de gaz ou...

Страница 12: ...te Website www ansi org Safe Practices for the Preparation of Containers and Piping for Welding and Cutting American Welding Society Standard AWS F4 1 from Glob al Engineering Documents Website www gl...

Страница 13: ...ch input voltage at job site Double check all connections relinking board position and input voltage before applying power Safe97 2012 05 For single phase operation insulate and isolate red conductor...

Страница 14: ...Positive Negative Voltage Input Arc Control Constant Voltage Purge By Gas Protective Earth Ground Increase Line Connection Gas Metal Arc Welding GMAW Three Phase Static Frequency Converter Transfo rm...

Страница 15: ...ference purposes only and final weld results can be affected by other variables and application specific circumstances The appropriateness of all parameters and settings should be evaluated and modifi...

Страница 16: ...or duty cycle before welding NOTICE Exceeding duty cycle can damage unit and void warranty Overheating 0 15 A or V OR Reduce Duty Cycle Minutes 60 Duty Cycle At 300 Amperes 40 Duty Cycle At 350 Ampere...

Страница 17: ...characteristics of the gun and adjust its operation to provide the most ideal feeding scenario See Section 6 15 for more detailed information on Gun Calibration 5 SUP is gone The new torque motor elim...

Страница 18: ...n may be required where gasoline or volatile liquids are present see NEC Article 511 or CEC Section 20 1 Line Disconnect Device 2 Running Gear Locate unit near correct input pow er supply Movement 1 1...

Страница 19: ...mm2 100 4 20 4 20 4 20 3 30 2 35 1 50 1 0 60 1 0 60 150 3 30 3 30 2 35 1 50 1 0 60 2 0 70 3 0 95 3 0 95 200 3 30 2 35 1 50 1 0 60 2 0 70 3 0 95 4 0 120 4 0 120 250 2 35 1 50 1 0 60 2 0 70 3 0 95 4 0 1...

Страница 20: ...terminal onto weld output terminal and secure with nut so that weld cable terminal is tight against copper bar Do not place anything between weld cable terminal and copper bar Make sure that the surf...

Страница 21: ...to side panel with the previously removed screws Ref 803 545 D Ref 803 539 C 1 2 3 5 6 Installing Spool Gun Or Push Pull Gun See Sections 5 7 And 5 8 1 Drive Assembly 2 Gun Securing Knob 3 Gun End Lo...

Страница 22: ...ded collar 2 Weld Cable 3 Shielding Gas Hose Route weld cable and gas hose through opening in front panel 4 Positive Weld Output Terminal Connect weld cable to weld output terminal 5 Regulator Flowmet...

Страница 23: ...d 2 Gun Liner 3 Wire Outlet Guide Trim excess liner from end of gun so no more than 3 32 in 2 4 mm of liner extends past wire outlet guide Connect gun end to drive assembly see Section 5 6 Be sure to...

Страница 24: ...alve Remove cap stand to side of valve and open valve slightly Gas flow blows dust and dirt from valve Close valve 3 Cylinder 4 Regulator Flowmeter Install so face is vertical 5 Regulator Flowmeter Ga...

Страница 25: ...pring Optional For 8 Inch Spool Part No 057745 5 Retaining Ring Slide spool onto hub so wire feeds off top Turn spool until hub pin fits hole in back of spool notch on hub aligns with hub pin for guid...

Страница 26: ...mum Recommended Supply Conductor Length In Feet Meters 4 96 29 81 25 217 66 85 26 111 34 172 53 Raceway Installation Minimum Supply Conductor Size In AWG mm2 5 6 16 8 10 10 6 10 6 10 6 14 2 5 Minimum...

Страница 27: ...rranty 1 Voltage Selection View Window Check voltage selected in unit Changing selection is only neces sary if selected value does not match available input voltage 2 Relinking Board PC6 3 Mounting Sc...

Страница 28: ...List is available at www MillerWelds com OM 254915 Page 24 5 13 Connecting 3 Phase Input Power input2 2012 05 Ref 803 766 C Ref 804653 B 803 766 A Tools Needed 2 1 Rear Panel GND PE Earth Ground 3 3 4...

Страница 29: ...ief 2 Input Power Cord 3 Disconnect Device switch shown in the OFF position 4 Green Or Green Yellow Grounding Conductor 5 Disconnect Device Grounding Terminal 6 Input Conductors L1 L2 And L3 7 Disconn...

Страница 30: ...s available at www MillerWelds com OM 254915 Page 26 5 14 Connecting 1 Phase Input Power input1 2012 05 Ref 803 766 C Ref 803 543 E 803 766 A Tools Needed Rear Panel GND PE Earth Ground 8 1 4 2 9 10 1...

Страница 31: ...ut Conductor L1 And L2 3 Red Input Conductor 4 Green Or Green Yellow Grounding Conductor 5 Insulation Sleeving 6 Electrical Tape Insulate and isolate red conductor as shown 7 Input Power Cord 8 Discon...

Страница 32: ...new drive roll idler and shoulder washers as shown Use wire brush to clean idler 7 Outlet Guide 8 Wire Inlet Guide Check inlet and outlet guides and replace if worn Pull inlet guide toward rear of fe...

Страница 33: ...pressure assembly Install proper size drive rolls Pull and hold wire cut off end Push wire thru inlet guide along drive roll groove and into wire conduit continue to hold wire Remove gun nozzle and c...

Страница 34: ...latch door Feed wire to check drive roll pressure Tighten knob enough to prevent slipping Do not exceed midrange setting Cut off wire Close and latch door Turn welding power source Off Nonconductive S...

Страница 35: ...t off Preflow The amount of time that the shielding gas will flow after the trigger is pressed and before the welding arc will be allowed to be active Pulse MIG GMAW CC weld process with factory taugh...

Страница 36: ...10 VOLTS Indicator Light 11 ARC LENGTH Indicator Light 12 Left Display 13 Left SETUP Indicator Light 14 WIRE SPEED Indicator Light 15 AMPS Indicator Light 16 Right Display 17 Right SETUP Indicator Li...

Страница 37: ...15 Page 33 6 3 Setup Button 6 3 1 Gun Ref 242 929 C 1 1 Lit Indicators This menu allows the user to select a gun to configure such as Python Aluma Pro or XR A 1 6 3 2 Process Ref 242 929 C 1 Lit Indic...

Страница 38: ...A complete Parts List is available at www MillerWelds com OM 254915 Page 34 6 3 3 Wire Ref 242 929 C 1 Lit Indicators This menu allows the user to select the wire alloy and diameter 1 1 1 1 Notes...

Страница 39: ...adjust the amount of time that the shielding gas will flow after the arc has been extinguished This setting is in seconds 6 3 4 4 Spot Timer This menu allows the user to adjust the spot time The spot...

Страница 40: ...t Power In this menu the user can adjust the percentage of weld power applied during the start period The start wire feed speed and all other pulse paramet ers are calculated to obtain the high heat i...

Страница 41: ...n and off for a particular gun type i e spool gun vs push pull gun 6 3 6 2 Crater Wire Feed Speed This menu allows the user to adjust the wire feed speed used during crater The setting is in IPM 6 3 6...

Страница 42: ...ht knob 9 to select wire size Depress SETUP 6 button again to illuminate TIMERS 5 light For description of the TIMERS refer to TIMERS menu see Section 6 3 4 If crater fill function menus are enabled T...

Страница 43: ...acks up and down to keep these values in the ideal welding condition Additionally if the user desires more or less voltage it can be adjusted within a limited window The newly adjusted low or high vol...

Страница 44: ...for adjust ment of crater parameters and timers see Section 6 18 Depress SETUP 6 button again to exit menus and enter PULSE welding mode OPERATION Arc length can be adjusted from 0 99 All Pulse MIG pr...

Страница 45: ...ire by means of the gun trigger or the Jog Purge switch If an arc is not estab lished within three seconds of the trigger pull the machine will begin jogging wire Jogging can also be accomplished by p...

Страница 46: ...9 Weld Display Status Before welding the Left and Right Displays will show Arc Length or Volts and Wire feed speed depending on weld process The indicator lights beneath each display will indicate wha...

Страница 47: ...ust be held for the trigger hold to become active There is a built in maximum trigger hold time which the trigger must be released within for trigger hold to become active The maximum trigger hold tim...

Страница 48: ...A complete Parts List is available at www MillerWelds com OM 254915 Page 44 6 12 Trigger Pulls That Will Not Actuate Trigger Hold...

Страница 49: ...ance or sharp arc depending on welding process While MIG welding changing the inductance will change the fluidity of the puddle While Pulse welding changing the SharpArc will vary the width of the wel...

Страница 50: ...Version This menu reports the software version of the Control Board CXXX XXXX 6 14 5 Gun Calibration This menu allows the user to run gun calibration See Section 6 15 for more information G CAL XXXX 6...

Страница 51: ...and then at a higher speed The machine will display G CAL HOLD while the calibration is in progress When the calibration has successfully completed the display with read G CAL DONE for 2 seconds or un...

Страница 52: ...gger to return to the main menu Now set the second weld paramet er or Schedule B Quickly pull and release pop the gun trigger to illu minate the Schedule B indicator located on the top left side of th...

Страница 53: ...age of the welding power Rotate the right adjustment knob until the power level is as high as desired Rotating the left adjustment knob will take the user to the next menu labeled STMR This represents...

Страница 54: ...to the next menu labeled WFS This represents the wire feed speed during the crater fill period Rotate the right adjust ment knob to select the desired wire feed speed Rotate the left adjustment knob...

Страница 55: ...2 100 25 1 2 100 35 1 0 0 047 in 1 2 mm 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 5 75 20 1 0 75 20 1 0 5XXX 100 Ar 0 035 in 0 9 mm 120 30 1 75 120 30 1 5 120 30 1 5 120 30 1 0 120 30...

Страница 56: ...Damaged Gas Hose l Cracked Or Damaged Cord Every 6 Months OR Inside Unit Clean Drive Rolls After Each Spool Of Wire Gun Liner When using a 16 lb spool of wire per day blow out gun liner after each spo...

Страница 57: ...er Washers Use wire brush to clean idler 7 Outlet Guide 8 Wire Inlet Guide Pull guide toward rear of feeder to remove Install new guide Thread welding wire and adjust drive roll pressure if necessary...

Страница 58: ...pool and remove spool Take hub apart as shown 1 Plastic Brake Washer 2 Fiber Washer 3 Brake Washer 4 Hub 5 Keyed Washer 6 Spring 7 Flat Washer 8 Cap Screw 9 Retaining Ring Replace broken or worn parts...

Страница 59: ...ove case 1 Input Capacitor C3 Terminals 2 Input Capacitor C4 Terminals 3 Voltmeter Check input capacitors as shown Measure the dc voltage across the positive and negative terminals until voltage drops...

Страница 60: ...t www MillerWelds com OM 254915 Page 56 7 7 Help And Information Displays A V A V A V HELP 0 A V A V A V A V HELP 1 HELP 2 HELP 3 HELP 4 A V HELP 6 A V HELP 7 G CAL ERR 1 G CAL ERR 2 A V JOG A V HELP...

Страница 61: ...d or there is a direct short between contact tip or wire and the workpiece Release gun trigger and clear fault condition S Help 6 Indicates a malfunction in wire feed system and or external drive moto...

Страница 62: ...nge to correct size drive rolls see Section 7 4 Readjust drive roll pressure see Section 5 16 Replace inlet guide contact tip and or liner if necessary see gun Owner s Manual Have Factory Authorized S...

Страница 63: ...OM 254915 Page 59 Notes...

Страница 64: ...OM 254915 Page 60 SECTION 8 ELECTRICAL DIAGRAM Figure 8 1 Circuit Diagram For Welding Power Source...

Страница 65: ...OM 254915 Page 61 255730 J...

Страница 66: ...mal Metric 030 035 in 030 035 in 0 8 09 196 301 058 549 040 in 040 in 1 0 mm 194 118 058 549 3 64 in 047 in 1 2 mm 194 119 058 549 To maintain the factory original performance of your equipment use on...

Страница 67: ...SAR Boxes and Panels TIG Torches No Labor Tregaskiss Guns No Labor Water Cooling Systems Wireless Remote Foot Hand Controls and Receivers Work Stations Weld Tables No Labor 5 6 Months Parts Batteries...

Страница 68: ...ersonal records Always provide Model Name and Serial Style Number Contact a DISTRIBUTOR or SERVICE AGENCY near you Welding Supplies and Consumables Options and Accessories Personal Protective Equipmen...

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