Craftsman 919.724321 owner manual Service and Adjustments, To Replace or Clean Check Valve, Tube

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SERVICE AND ADJUSTMENTS

All maintenance and repair opera- tions not listed must be performed by Trained Service Technician.

Risk of Unsafe

Operation. Unit

cycles automatically when power is on. When servicing, you may be exposed to voltage sources, compressed air, or moving parts. Before servicing unit unplug or disconnect electrical supply to the air compressor, bleed tank of pres- sure, and allow the air compressor to cool.

To Replace or Clean Check Valve

1.Release all air pressure from air tank. See "To Drain Tank" in the Maintenance section.

2.Set the On/Auto/Off lever to "OFF" and unplug unit.

3.Remove shrouds.

4.Using an adjustable wrench loosen outlet tube nut at air tank and pump. Carefully move outlet tube away from check valve.

	Outlet Tube	Nut
	Outlet Tube
	Pressure
	Relief	Check
	Tube	Check
	Tube	Valve
		Valve
	Nut

5.Using an adjustable wrench loosen pressure relief tube nut at air tank and pressure switch. Carefully move pressure relief tube away from check valve.

6.Unscrew the check valve (turn counterclockwise) using a 7/8" open end wrench. Note the ori- entation for reassembly.

7.Using a screwdriver, care-

fully push the valve disc up and down. NOTE: The valve disc should move freely up and down on a spring which holds the valve disc in the closed position, if not the check valve needs to be cleaned or replaced.

Screwdriver

In open position nothing is visible.

In closed position disc is visible.

8. Clean or replace the check valve. A solvent, such as paint or var- nish remover can be used to clean the check valve.

9. Apply sealant to the check valve threads. Reinstall the check valve (turn clockwise).

10. Replace the pressure release tube. Tighten nut.

11. Replace the outlet tube and tighten nut.

12. Replace the shroud and air filter.

13. Perform the Break-in Procedure. See "Break-in Procedure" in the Operation section.

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Contents AIR Compressor Sold by Sears Canada, Inc. Toronto, Ont. M5B 2B8Table of Contents Specification Chart Safety Guidelines DefinitionsImportant Safety Instructions What Could Happen Always remain in attendance withAttachments & Accessories Repairs attempted by unqualified Safety equipment must be properlyElectricity. Like any other electrically Personnel can result in serious injuryResult in serious burns How To Prevent It Hazard Warning Risk from Moving PartsKeep children away from the air compressor at all times Equip area of operation with a fire extinguisherGlossary AccessoriesAccessories Duty CycleTools Required for Assembly AssemblyContents of Carton Assemble WheelsInstallation Location of the Air CompressorIllustration Extension Cords Voltage and Circuit ProtectionDescription of Operation OperationKnow Your Air Compressor Tank Pressure Gauge The tankHow to Stop Before StartingHow to Start Before Each Start-UpCustomer Responsibilities MaintenanceTo Check Safety Valve To Drain TankMotor Air Filter Inspection and ReplacementAir Compressor Pump Intake and Exhaust Valves Air FilterOutlet Tube Nut Pressure Relief Service and AdjustmentsTo Replace or Clean Check Valve TubeNipple To Replace RegulatorRegulator Quick Connect Regulator ArrowStorage Troubleshooting Pressure reading Check wiring connection Table DES Matières Pleine Garantie D’UN ANTableau DES Spécifications Mesures DE Sécurité DéfinitionsConsignes DE Sécurité Importantes Conserver ces directives Avertissement Risque dexplosion ou dincendie PréventionAvertissement Risque déclatement Risque PréventionAvertissement Risque de projection dobjets Avertissement Risque de choc électrique Avertissement Risque par inhalationAvertissement Risque de brûlures Avertissement Risque relié aux pièces mobilesAvertissement Risque de chute Prévention Risque Avertissement Risque dune utilisation dangereuseAccessoires AccessoiresCycle DE Service LexiqueOutils requis pour lassemblage AssemblageContenu de lemballage en carton Assemblage des DéballageLillustration Terre inappropriée peut entraîner des chocs électriquesRallonges Protection contre la surtension et protection du circuitRisque dune utilisation Utilisation Familiarisez-vous avec votre compresseur dairDescription du fonctionnement Avant le démarrage Utilisation de lappareilArrêt de lappareil Soupape de décharge de pression LaAvant chaque mise en marche Mise en marcheVérification de la soupape de sûreté EntretienResponsabilités du client Vidange du réservoirFiltre à air Inspection et remplacement MoteurRisque de brûlures Remplacement ou nettoyage de la soupape de retenue Entretien ET RéglagesRemplacement du régulateur Rangement Risque déclatement.Ne DépannageSerrer Peut éclater ou exploserUne légère chute de pression est Pas Surcharges déclenché 54- FR 55- FR A14411 MY-HOME Sears Parts and Repair CenterCanada