Max Tools Needed 11/16 | Miller Electric Miller DU-OP specification

8-7. Checking And Replacing Alternator Belt

1/2 in	1
(13 mm)
Max

Tools Needed:

1/2, 11/16 in

YStop engine.

To check belt tension:

Remove rear panel.

1Alternator V-Belt

2Crank Pulley

3Alternator Pulley

Place straight edge along top of pul- leys. Pull down belt as far as it will go, then measure distance from belt to straight edge.

If measurement is less than 1/2 in (13 mm), belt is okay. If not okay, adjust belt tension.

To adjust belt tension:

4Hex Nuts (2)

5Alternator Bracket

Loosen nuts. Pivot alternator until belt is tight. Tighten nuts. Recheck tightness of belt. Readjust if necessary.

Replace belt if damaged or cracked.

To replace belt:

Loosen hex nuts and pivot alterna- tor clockwise. Remove belt.

Install new belt, pivot alternator until belt is tight, and tighten nuts. Re- check tightness of belt after running engine 15 minutes.

Reinstall rear panel.

158 632 / Ref. 190 377

OM-494 Page 38

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Image 42

Miller Electric Miller DU-OP manual Checking And Replacing Alternator Belt, Max Tools Needed 11/16, To adjust belt tension

Contents

File Engine Drive ProcessesDescription Visit our website at OM-494191 862Q September From Miller to You Table of Contents − Operating Auxiliary Equipment Symbol Usage Arc Welding Hazards Engine Hazards Compressed Air Hazards EMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interference UN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïe ’EMPLOI Excessif peut LA Chaleur DU Moteur peut pro- voquer un incendie’AIR Comprimé peut provoquer des blessures LE Surchauffement peut endom- mager le moteur électrique Pour les moteurs diesel LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone Symbols And Definitions − Definitions Dimensions, Weights, And Operating Angles − SpecificationsWeld, Power, And Engine Specifications Description AC Generator Power Fuel Consumption Overheating Exceeding duty cycle can damage unit and void warrantyDuty Cycle And Overheating Reduce Duty Cycle Minutes CV/DC Mode CC/DC − Single ModeCC/DC − Dual Mode Volt-Ampere Curves − Installation Installing Welding Generator Do not overfill battery cells Activating The Dry Charge Battery If ApplicableConnecting The Battery For 30 Minutes Stop engine and let cool Installing Exhaust PipeEngine Prestart Checks Fuel Unexpected Weld Output can cause injury or fire Safety Information For Connecting To Weld Output TerminalsWeld Output Terminals Welder a Left Side Welder B Right Side Welder a Left Side Do not exceed machine duty cycle Stop engine Do not exceed machine duty cycle Connect electrode holder cables to Elec- trode receptacles When switch is in Straight position Place optional Polarity switches in ReVerse position when using CV weld re Switches are set correctly. See Section Connect wire feeder cables to Negative − terminals Connect wire feeder cables to CV recep- tacles Be sure Process Selector switches are Place optional Polarity switch in Re Making Single Operator CC Weld Connections OM-494 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Selecting Weld Cable Sizes150 ft 200 ft 250 ft Put terminals Remote 14 Receptacle Information Installing Ether Cylinder Optional Ether Starting AidAfter installing cylinder, wait at Socket Information Remote 14 Receptacle Connections Dual Operator Operation See -3for weld control descriptions − Operating the Welding GeneratorEngine Controls If light goes on, stop engine and check engine belt Weld Controls See Section Weld Control Descriptions See Section Do not switch under load or with out- put onDo not switch under load CV weld output for MIG is only available Volt And 240 Volt Duplex Receptacles Generator power is not affected by weld output− Operating Auxiliary Equipment At least once a month, run engine at − Maintenance & Troubleshooting Routine Maintenance Maintenance Label To clean air filter Servicing Air CleanerBy the warranty Do not clean housing with air hose Servicing Fuel And Lubrication Systems Servicing Optional Ether Starting Aid Adjusting Engine SpeedWeld/Power Cylinder Max Tools Needed 11/16 To adjust belt tensionChecking And Replacing Alternator Belt Stop engine To check belt tension Resetting Fan Belt Safety Shutdown Inspecting And Cleaning Optional Spark Arrestor Muffler Stop engine and let cool. Reinstall cleanout plugChecking Generator Brushes Circuit Protection Thermostats TP3 And TP4 Internal − Not Shown Troubleshooting Welding Repair or replace wire feeder Factory Authorized Service Agent check main rectifier SR2Factory Authorized Service Agent check main rectifier SR3 Formers T5 thru T10, and control board PC1 or PC5 Generator Power Engine OM-494 − Electrical Diagrams Circuit Diagram For Welding Generator 210 657-A − RUN-IN Procedure WetstackingMent damage may occur Check oil level frequently dur Run-In Procedure Using Load Bank4exceed duty cycle or equip- ment damage may occur Ing run-in add oil if needed Bank/grid Run-In Procedure Using Resistance GridProcedure at less than From flammables Selecting Equipment − Generator Power GuidelinesHas this symbol Grounding Generator To Truck Or Trailer Frame Earth ground if supplying Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Use ground device as stated Electrical codes Industrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running Watts Single-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP x 1000 = Starting Amperage Typical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes − Parts List 96−SEE FIG 92 91 103 102 101 100 25−SEE FIG 910 4748 57−SEE FIG 78−SEE FIG 76 75 Item Dia Part Description Quantity Mkgs 189 Front Panel Front Panel -1Item Side Control Panels − Welder B Right Side Shown Side Control Panels -1Item Side Control Panels Generator Rectifier Assembly OM-494 Page Service Your distributor also givesSupport For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s