Hobart Welding Products OM-474 manual Adjusting Engine Speed, Engine Speed No Load

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7-5. Adjusting Engine Speed

Engine Speed

(No Load)

Weld/Power

Idle

7	2
	2
	1
6

8

3

5

4

Tools Needed:

5/16, 7/16 in

	Engine speeds have been factory
	set and should not require
RPM	adjustment.

	Start engine and check engine
1850	speeds with a tachometer. See
	table for proper no load speeds. If
1250	necessary, adjust speeds as
	follows:
	Weld/Power Speed Adjustment
	Place engine control switch in Run
	position.
	1	Lock Nut
	2	High Speed Adjustment
		Screw
	Loosen nut and turn screw until en-
	gine runs at weld/power speed.
	Tighten nut.
	Y Stop engine.
	3	Throttle Arm
	4	Solenoid
	5	Solenoid Plunger
	Push arm towards solenoid so
	plunger is fully bottomed in
	solenoid.
	6	Lock Nut
	7	Low Speed Adjustment Screw
	Loosen nut and back out screw if
	screw hits stop before plunger is
	fully bottomed. Tighten nut and
	release arm.
	Idle Speed Adjustment
	Start engine. Place engine control
	switch in Run/Idle position.
	8	Lock Nut
	Loosen nut and turn throttle arm un-
	til engine runs at idle speed. Tighten
	lock nut.

Be sure solenoid plunger is fully bottomed in solenoid at idle speed to avoid damaging solenoid.

Y Stop engine.

Close door.

Ref. ST-154 952-C / ST-091 065-A

OM-474 Page 28

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Contents OM-474 ProcessesDescription JulyFrom Hobart to You Table of Contents Page Symbol Usage Arc Welding HazardsElectric Shock can kill ARC Rays can burn eyes and skinEngine Hazards Battery Explosion can Blind Moving Parts can cause injuryEngine Exhaust Gases can kill Engine Heat can cause firePrincipal Safety Standards EMF InformationRadiation can cause interference ARC Welding can cause interferenceSignification des symboles Consignes DE Sécurité Lire Avant UtilisationUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in- cendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peutLA Chaleur DU Moteur peut pro- voquer un incendie LA Chute DE L’APPAREIL peut blesserPrincipales normes de sécurité Information sur les champs électromagnétiquesLE Soudage À L’ARC risque de provoquer des interférences Consignes relatives aux stimulateurs cardiaquesSpecifications Symbols And DefinitionsWeld, Power, And Engine Specifications DefinitionsDimensions, Weights, And Operating Angles DimensionsWeight Fuel ConsumptionAC Auxiliary Power Duty Cycle And Overheating60% Duty Cycle At 350 Amperes Minutes Welding12.5 KVA/KW Three-Phase Auxiliary Power Plant No Weld Load Optional AC Power Plant Curves5 KVA/KW Single-Phase Auxiliary Power Plant No Weld Load Volt-Ampere Curves DC Volts CC/DC StandardAC Amperes CV/DC Models with Optional CV-3 Module 100 Ranges 190-Max 110-270Connecting The Battery InstallationInstalling Welding Generator Installing Muffler Temperatures below 0 F -18C 13 mm Full Diesel Valve OpenEngine Prestart Checks Do not use gasoline. Gasoline will damage engineConnecting To Weld Output Terminals Selecting Weld Cable Sizes100 ft 30 m Or Less 10 100% Duty CycleRemote 14 Receptacle RC3 Information Optional, See Section Terminal Strip 3T Connections OptionalSocket Information Stop engineOperating Welding Generator Front Panel Controls See SectionAmpere Range Switch Do not switch under loadDescription Of Front Panel Controls See Section Stop engine and fix trouble if either warning light goes onRemote Control Optional Example Combination remote amperage controlOperating Auxiliary Equipment Volt Duplex And Optional Gfci ReceptaclesVolt Duplex Receptacle Optional Open ContactFront Connecting Optional Auxiliary Power PlantSet Engine Control switch to Run when using auxiliary power Maintenance and Troubleshooting Maintenance Label Do not clean housing with air hose Servicing Air CleanerTo Clean air filter Servicing Fuel System Stop engine and let coolTo drain water from fuel system To replace fuel filterEngine Speed No Load Adjusting Engine SpeedIdle Speed Adjustment Changing Engine Oil And Filter Overload Protection If any fuse or circuit breakerInspecting And Cleaning Optional Spark Arrestor Muffler TroubleshootingWelding Trouble RemedyAuxiliary Power Coolant temperature gets too high see Section Check engine control switch, and replace if necessaryEngine See engine manualOM-474 Electrical Diagrams Circuit Diagram For Welding Generator For Standard ModelsOM-474 193 989-B RUN-IN Procedure WetstackingRun-In Procedure Using Load Bank Load BankRun-In Procedure Using Resistance Grid Do not touch hot exhaustBank/grid From flammablesGrounding Generator To Truck Or Trailer Frame Auxiliary Power GuidelinesSelecting Equipment Grounding When Supplying Building Systems How Much Power Does Equipment Require?Earth ground if supplying Use ground device as stated in electrical codesApproximate Power Requirements For Industrial Motors Approximate Power Requirements For Farm/Home EquipmentIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsPower Required To Start Motor How Much Power Can Generator Supply?Single-Phase Induction Motor Starting Requirements KVA/HP x HP xTypical Connections To Supply Standby Power Welding Generator Auxiliary Power output circuitItem 4 is not necessary if circuit Protection is already presentSelecting Extension Cord Use Shortest Cord Possible Current Load Watts AmperesParts List 101 102 105 104 10365 66 Includes Items Dia Part Description Mkgs Quantity PLG9,RC9 PC4 Control Box w/Components -4 Item Control Box w/ComponentsGenerator Generator -1 Item Panel, Front w/Components Panel, Front w/Components -1 Item Page Service SupportCall Contact your Distributor forHobart Welding Products