Miller Electric Big 40 WG manual Adjusting Engine Idle Speed, Engine Speed, No Load

Page 42

8-6. Adjusting Engine Idle Speed

 

 

 

Y Stop engine and let cool.

 

 

 

Engine idle speed is factory set and

 

 

 

normally should not require adjust-

 

 

 

ment. After tuning engine, check

Engine Speed

 

 

engine speed with tachometer or

(No Load)

 

 

frequency meter. See table for

1850 rpm max

 

 

proper no load speed. If necessary,

 

 

adjust idle speed as follows:

(61.6 Hz)

 

 

Start engine and run until warm.

1250 rpm

 

 

 

 

On CC Models, place Stick/TIG

(41.6 Hz)

 

 

 

 

switch in Stick position.

 

 

 

 

 

 

On CC/CV models, turn Process/

2

5

 

Contactor switch to Stick – Elec-

 

trode Hot position.

 

 

 

 

 

 

1

Solenoid Bracket Screws

 

 

 

2

Throttle Arm

 

 

 

3

Idle Speed Screw

 

 

 

4

Throttle Stop

 

 

 

Loosen bracket screws and move

 

 

 

arm so screw touches stop. Do not

 

 

 

release arm. Turn idle speed screw

 

 

 

to obtain 550 rpm.

 

 

 

5

Idle Mixture Screw

 

 

1

Turn mixture screw counterclock-

 

 

wise until engine falters, then turn

 

 

 

 

 

 

screw clockwise until engine runs

 

 

 

smoothly.

 

 

 

Turn idle speed screw to obtain

 

 

6

1250 rpm.

 

 

6

Solenoid

 

 

 

3

7

 

7

Plunger

 

 

Slide solenoid inside bracket so

 

 

 

 

 

 

plunger bottoms in solenoid. If nec-

 

 

 

essary, shim solenoid/bracket to

 

 

 

prevent linkage from binding. Do

 

 

 

not readjust idle speed screw when

 

 

 

adjusting solenoid.

 

 

 

Tighten bracket screws. Release

 

 

 

throttle arm. Recheck idle speed

4

 

 

and readjust if necessary.

 

 

Y Stop engine.

 

 

 

 

 

 

Close door.

 

 

 

 

Tools Needed:

 

 

 

 

1/4 in

802 731 / Ref. 115 155-A

OM-4405 Page 38

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Contents OM-4405 ProcessesDescription From Miller to You Table of Contents Options and Accessories Warranty Electric Shock can kill Symbol UsageArc Welding Hazards ARC Rays can burn eyes and skinEngine Hazards Engine Exhaust Gases can kill Battery Explosion can BlindMoving Parts can cause injury Engine Heat can cause fireRadiation can cause interference Principal Safety StandardsEMF Information ARC Welding can cause interferenceUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE SÉ Curité Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES PIÈ CES Chaudes peuvent provoquer des brû lures graves LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïeLA Chaleur DU Moteur peut pro- voquer un incendie DES Organes Mobiles peuvent provoquer des blessures’EXPLOSION DE LA Batterie peut LA Chute DE L’APPAREIL peut blesserLE Soudage À L’ARC risque de provoquer des interfé rences Principales normes de sé curitéInformation sur les champs é lectromagné tiques Consignes relatives aux stimulateurs cardiaquesWeld, Power, And Engine Specifications SpecificationsSymbols And Definitions DefinitionsDimensions, Weights, And Operating Angles Volt-Ampere Curves For CC ModelsTIG Mode Stick ModeMIG Mode Volt-Ampere Curves for CC/CV ModelsFuel Consumption Duty Cycle And Overheating12 kVA/kW Single-Phase Auxiliary Power Plant No Weld Load AC Auxiliary Power CurveOptional AC Power Plant Curves 15 kVA/kW Three-Phase Auxiliary Power Plant No Weld LoadInstallation Installing Welding Generator See Sections 4-2Using Lifting Eye Welding Unit In Place Bolting Unit In Place Installing Exhaust PipeMounting Welding Generator To Bolt Unit In PlaceRead and follow all instruc Activating The Dry Charge Battery If ApplicableDo not overfill battery cells ChargerConnecting The Battery Connect Negative Cable LastFuel Coolant Recovery TankEngine Prestart Checks OilConnecting To Weld Output Terminals Selecting Weld Cable SizesRef 862-A / 048 720-K / 802 Connecting To Remote 14 Receptacle RC14 On CC/CV Models Socket InformationOperating Welding Generator CC Models Front Panel Controls For CC Models See SectionEngine Starting Controls Engine Indicator LightsDo not switch under load To StartRemote Amperage Control On CC Models Optional OM-4405 Operating Welding Generator CC/CV Models Front Panel Controls For CC/CV Models See SectionUse switch to select weld amperage range Voltage/Amperage Adjust Switch And Remote 14 ReceptacleProcess/Contactor Switch Process/Contactor Switch On CC/CV ModelsProcess/Contactor Switch Settings RunningProcess Remote Voltage/Amperage Control On CC/CV Models OptionalSet Remote Set Range Set RemoteOperating Auxiliary Equipment Volt And 240 Volt ReceptaclesSingle-Phase Power Connection Single-Phase Auxiliary Power Three-Phase Power ConnectionRear Of Panel Optional Auxiliary Power Receptacles 240 V 15 a AC South African Receptacle RC1Circuit Breaker CB2 Circuit Breaker CB3 Maintenance & Troubleshooting Maintenance Label100 h Routine Maintenance50 h 250 h1000 h Inspecting And Cleaning Optional Spark Arrestor Muffler500 h Stop engine and let coolServicing Air Cleaner Adjusting Engine Weld/Power Speed MaximumAdjusting Engine Idle Speed Engine SpeedNo Load Adjusting Governor Sensitivity Tools Needed 1/2Servicing Fuel And Lubrication Systems Press button to reset breaker Overload ProtectionFault Condition Diagnosing Causes Of Engine Fault ShutdownsDiagnostic Checks While Running 20s Start Engine With No Load AppliedTroubleshooting Welding CC ModelsRepair or replace wire feeder Welding CC/CV ModelsTacle see Section Standard Auxiliary Power Optional Auxiliary Power PlantEngine Ant temperature is too high see Sections 4-7 Wiring harness and componentsShutdown switch is released Out Or coolant temperature is too high see Sections 4-7OM-4405 Electrical Diagrams Circuit Diagram For CC Welding Generator201 991-A Circuit Diagram For CC/CV Welding Generator 201 992-A Auxiliary Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame Earth ground if supplying Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial 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 WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP xTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Current Load Watts AmperesOM-4405 Parts List 107 106 101 105 103CC only 104 -4 or 108 See FIGDia Part Description Dia Part Description Mkgs Quantity Control Box Assembly CC Models Control Box Assembly CC Models -1 Item Control Box Assembly CC/CV Models 177 CONN, body 5 terminal to engine control switch S1 193 Panel, Front w/Components CC Models MS1 Panel, Front w/Components CC/CV Models Panel, Front w/Components CC/CV Models -1 ItemPC6 192 Generator Generator -1 Item Main Rectifier Assembly Service Your distributor also givesSupport Owner’s Record Miller Electric Mfg. Co
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