Middleby Marshall PS360-L III. Maintenance Every 3 Months, Split Belt Disassembly and Cleaning

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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 lubricate the conveyor shaft components as described below.

1.Remove the motor shroud, conveyor extensions, and con- veyor 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 4-6.

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. Remember that unequal-width split belt ovens should ALWAYS 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 4-8.

8.Replace the conveyor adjustment screws as shown in Figure 4-6. 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 sprock- ets. Then, remove the sprockets from the shaft.

10.Loosen the locking collar set screw, as shown in Figure 4-7.

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. Remember that unequal-width split belt ovens should ALWAYS 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 4-8. 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. Check that the smooth side of the conveyor belt faces UP, and that the belt and master links are oriented as shown in Figure 4-9.

15.Reassemble the conveyor, motor shroud and conveyor extensions onto the oven.

16.CheckthetensionoftheconveyorbeltasshowninFigure4-5. The belt should lift between 75-100mm. If necessary, adjust the belt tension by turning the conveyor adjustment screws.

SECTION4-MAINTENANCE

Figure 4-6 - Split Belt Idler Shaft

Conveyor adjustment screw

ENGLISH

Figure 4-7 - Split Belt Drive Shaft

Locking collar

Figure 4-8 - Washer and Spacer

Bronze washer on

BOTH idler and

drive shafts

Nylon spacer on drive shaft

ONLY

Figure 4-9 - Conveyor and Master Link Orientation

Direction

of travel

CORRECT master link position

Incorrect

master link

position

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Contents PS360WB PS360English For Your SafetyTable of Contents Description English III. Oven SpecificationsOven Uses II. Oven Components see FigureInstallation Electrical specifications per oven cavityGas orifice and pressure specifications per oven cavity Installation kit components one kit required per cavity Installation KITAdditional installation kit components for gas ovens 710Requirements II. Ventilation SystemRecommendations Other ventilation concernsIV. Thermocouple Installation III. AssemblyRemoving the Conveyor Drive Sprocket Conveyor Installation11 Conveyor and Master Link Orientation VI. Final AssemblyDURINGPRESSURETESTINGNOTEONEOFTHEFOLLOW- ING VII. Electrical SupplyVIII. GAS Supply Gas Utility Rough-In Recommendations Gas MeterGas Line Replacing the Gas Orifices if so required Preparation for Use with Various GasesVolumetric Method Adjusting the Orifice Manifold Pressure and Heat InputChecking the Gas Supply Inlet Pressure Orifice Manifold Pressure MethodReset Switch Gas ovens only. Illuminates Conveyor Switch Turns the conveyor drive motor on and offOperation Location and Description of ControlsDailystartupprocedure DailyshutdownprocedureII. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller Symptom IV. Quick Reference TroubleshootingMaintenance Daily MaintenanceRemoving the Conveyor II. Maintenance MonthlySplit Belt Disassembly and Cleaning III. Maintenance Every 3 MonthsIV. Maintenance Every 6 Months KEY Spare Parts KIT Available sepa- rately. See FigureDescription 400V, 50 Hz, 1 Ph DiagramsImportant also located inside An electrical wiring diagram for the oven isCompartment Gas OvenReguleret opvarmningszone Regulerede opvarmningszoner PS300 serien gas- og elektriske ovneMeddelelse DanskIndholdsfortegnelse AFSNIT5-LEDNINGSDIAGRAMMERAfsnit 3 Betjening AFSNIT4-VEDLIGEHOLDELSEOvnens Anvendelsesmuligheder Afsnit 1 Beskrivelse DanskII. Ovnkomponenter se Figur III. OvnspecifikationerAfsnit 2 Installation Tabel 1-3 Generelle specifikationer pr. ovnhulrumTabel 1-4 Specifikationer for gasåbning pr. ovnhulrum Yderligere komponenter til installationssæt til gasovne InstallationssætEnhed Beskrivelse Delnummer ØversteovnKrav II. VentilationssystemAnbefalinger Andre ventilationsanliggenderIII. Montering IV. Installation AF TermoelementInstallation AF Transportbånd DanskBemærk 11 Transportbånds- og samleledsretning VI. Endelig MonteringVII. Strømforsyning VIII. Gasforsyning ForsigtigUnder Trykprøvning Skal ET AF Følgende Bemærkes Gasudsivningstest, før ovnen betjenes Udførelse af disse procedurer, skal Der UdføresUdskiftning af gasåbninger hvis det kræves Forberedelse til brug med forskellige gastyperKontrol af gasforsyningstrykket indgang Volumetrisk metodeJusteringen af åbningens tryk manifold og varmetilførsel Åbningstrykmetoden manifoldAfsnit 3 Betjening Placering OG Beskrivelse AF BetjeningsknapperHeat varme kontakt Tillader at brænder Dagligopstartprocedure DaglignedlukningsprocedureII. Normal Betjening Trin for Trin III. Hurtig Reference Digital Temperaturregulator IV. Hurtig Reference Fejlfinding Bemærk Afsnit 4 VedligeholdelseVedligeholdelse Dagligt ForsigtigEksempler på markeringer II. Vedligeholdelse MånedligAfmontering og rengøring af dobbeltbånd III. Vedligeholdelse Hver 3. MånedIV. Vedligeholdelse Hver 6. Måned Nøgle Reservedelssæt fås separat. Se figurEnhed Del nr Beskrivelse Afbrydere 380-400V, 50 Hz, 1 faseMaskinkassen Der findes også et ledningsdiagramPS360-U/-L eller Gasovn, 220-230V, 50Hz
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