Middleby Marshall PS500 III. Maintenance Every 3 Months, Split Belt Disassembly and Cleaning

Page 19

III. MAINTENANCE - EVERY 3 MONTHS

A.Check that the oven is cool and the power is disconnected, as described in the warning at the beginning of this Section.

B.Vacuum both of the blower motors, and their surrounding compartments, using a shop vacuum.

C.Tighten all electrical control terminal screws.

D.Split Belt Disassembly and Cleaning

For split belt ovens ONLY, disassemble, clean and lubri- cate the conveyor shaft components as described below.

1.Remove the motor shroud, conveyor extensions, and conveyor as described in Part II, Monthly Maintenance.

2.Remove the master links from each conveyor belt. Then, roll the belts up along the length of the conveyor to remove them from the frame.

3.Remove the two conveyor adjustment screws from the idler end of the conveyor frame, as shown in Figure 4-

4.Remove the idler shaft assembly from the conveyor.

5.Pull apart the two sections of the idler shaft. Clean the shafts thoroughly using a rag. Then, lubricate both the extended shaft and the interior of the hollow shaft using an FDA-approved light food-grade lubricant.

CAUTION

DO NOT lubricate the shafts using WD40 or a similar product. This can cause the shafts to wear rapidly.

6.Before reassembling the shafts into the conveyor frame, check that they are oriented properly. Remem- ber that unequal-width split belt ovens should AL- WAYS have the narrower belt at the front of the oven.

7.Reassemble the idler shaft into the conveyor. Make sure that the bronze washer is in place between the two sections of the shaft. See Figure 4-7.

8.Replace the conveyor adjustment screws as shown in Figure 4-5. To allow the conveyor belt to be reinstalled later, do not tighten the screws at this time.

9.Loosen the set screw on both of the conveyor drive sprockets. Then, remove the sprockets from the shaft.

10.Loosen the locking collar set screw, as shown in Figure 4-6.

11.Push the drive shaft to the right, then lift it free of the conveyor frame. Then, disassemble and lubricate the two sections of the drive shaft as described in Step 5.

12.Before reassembling the shafts into the conveyor frame, check that they are oriented properly. Remem- ber that unequal-width split belt ovens should AL- WAYS have the narrower belt at the front of the oven.

13.Reassemble the drive shaft into the conveyor. Check that the nylon spacer is in place, as shown in Figure 4-

7.Also, check that the bronze washer is in place between the two sections of the shaft.

14.Replace the drive sprockets. Reassemble the belts and master links onto the conveyor, and replace the conveyor in the oven.

15.Reassemble the motor shroud and conveyor exten- sions onto the oven.

SECTION4-MAINTENANCE

16Check the tension of the conveyor belt. The belt should lift between 3-4" (75-100mm). If necessary, adjust the belt tension by turning the conveyor adjustment screws.

Figure 4-5 - Split Belt Idler Shaft

ENGLISH

 

 

Conveyor

 

adjustment

 

screw

Figure 4-6 - Split Belt Drive Shaft

Locking collar

Figure 4-7 - Washer and Spacer

Bronze washer on

BOTH idler and

drive shafts

Nylon spacer on drive shaft

ONLY

19

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Contents Owners Operating and Installation Manual English Table of Contents Oven Uses DescriptionII. Oven Components see Figure Electrical specifications for PS555G and PS570G gas ovens InstallationQuantity Base PAD KIT see FigureRecommendations Installation KIT see FigureIII. Ventilation System RequirementsBase Pad, Legs, Casters, and Stacking IV. AssemblyRestraint Cable Installation Conveyor InstallationDirection Travel Pad Loosen conveyor collarIncorrect Master link Position Additional Information Electric Ovens Final AssemblyVI. Electrical Supply Additional Information Gas OvensVII. GAS Supply DuringpressuretestingnoteoneofthefollowingRate regulator Must be installed in the line Before Above steps or when necessary during service mainGas Conversion Conveyor Speed SwitchOperation Location and Description of ControlsDailyshutdownprocedure DailystartupprocedureII. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller Symptom Problem IV. Quick Reference TroubleshootingMaintenance Daily MaintenanceRemoving Air Fingers and Plates II. Maintenance MonthlySplit Belt Disassembly and Cleaning III. Maintenance Every 3 MonthsLocking collar Blower Belts IV. Maintenance Every 6 MonthsLubricating the Blower Fan Bearings Item Qty Description KEY Spare Parts KIT Available separately. See FigureGas Ovens Electric OvensThermocouples Wiring DiagramsElectricalwiringdiagrams 380V or 480V, 50/60Hz, 3 Ph Important diagram for the oven is alsoAn electrical wiring Located inside the machinery compartmentManuel Dinstallation ET DE Fonctionnement Avertissement Schémas DE Câblage Table DES MatièresFonctionnement EntretienFour unique Four double Four triple Four quadruple Utilisations DU FourII. Composants DU Four Figure Tableau 1-2 Spécifications généralesAssurez-vous que le système de ventilation est Vérifiez si lalimentation en gaz et la combustionQuantité Trousse DE Plaque DE Pose voir FigureExigences II. Trousse Dinstallation FigureRecommandations III. Système DE VentilationIV. Assemblage Maille extérieure PosePanneau LatéralRenseignements supplémentaires Fours électriques Assemblage FinalVI. Alimentation EN Électricité Renseignements supplémentaires Fours à gazDURANTLESSAIDEPRESSION,NOTEZCEQUISUIT VII. Alimentation EN GAZBrûleur à gaz Conversion du gazCoude de Tuyau à Gaz Flexible Dispositif de raccord OU de Débranchement RapideBouton de commande « Heat » chaleur Emplacement ET Description DES CommandesFonctionnement Attendez ProcéduredemiseenservicequotidienneII. Fonctionnement Normal PAS-À-PAS Procéduresquotidiennesdemiseenlarrêt« Actual Temp » IV. Consultation Rapide Résolution DE Problèmes Entretien Quotidien EntretienAvertissement RemarqueRemarque II. Entretien MensuelRangée du bas B1 B2 B3 B4 B5 B6 Collier de fixation III. Entretien TrimestrielDémontage et nettoyage dune bande divisée Vis Dajustement du TransporteurCourroies de soufflerie IV. Entretien SemestrielGraissage des paliers de ventilateur de soufflerie Fours électriques Fours à gazArt Qté Pièce N Description Fours À Bande Divisée Seulement Schémas DE CâblageSchémas DE Câblage Toastmaster Manual DE Instalación Y Operación DEL Propietario Aviso Sección 3 Operación SECCIÓN5-DIAGRAMASDELCABLEADOELÉCTRICOÍndice Sección 2 InstalaciónTabla 1-2 Especificaciones generales SECCIÓN1-DESCRIPCIÓNUSO DEL Horno II. Componentes DEL Horno Ver FiguraSECCIÓN2-INSTALACIÓN Cantidad Juego DE Cojines DE Base ver FiguraIII. Sistema DE Ventilación II. Juego DE Instalación ver FiguraItem Ctdad. Número de Pieza Descripción Parte delantera del horno IV. EnsambladoRetén Afloje el tornillo deDirección de MovimientoPosición Información Adicional Hornos Eléctricos Ensamblado FinalVI. Suministro Eléctrico Información Adicional Hornos de GasDurantelaspruebasdepresiónobservelosiguiente VII. Suministro DE GAS PrecauciónConversión Según el Tipo de Gas Ubicación Y Descripción DE LOS Controles Sección 3 OperaciónInterruptor Heat Calor Permite que se Procedimientodiariodeapagado II. Operaciones Normales Paso a PasoImportante ProcedimientodiariodeencendidoIII. Referencia Rápida Controlador Digital DE Temperatura IV. Referencia Rápida Diagnóstico DE Averías Síntoma Problema SoluciónMantenimiento Diario SECCIÓN4-MANTENIMIENTOAviso NotaFigura 4-3 Remoción de los dedos de aire y las placas II. Mantenimiento MensualCollar de seguridad III. Mantenimiento TrimestralNota IV. Mantenimiento SemestralCorreas de los Ventiladores Lubricación de los cojinetes de los ventiladoresItem Ctdad. No. de Pieza Descripción Hornos de gas Hornos eléctricosEléctrico Diagramas DEL CableadoSección 5 Diagramas DEL Cableado Eléctrico PageFRANÇAIS PáginaESPAÑOL Dentro del