Moyer Diebel MD-66, MD-44 operation manual Operation, Do not Overload Racks

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Operation

Operation

1.Check that the spray pipes, curtains, and scrap screens are in place and clean.

2.Check that the overflow drains are closed.

3.Check the chemical supplies. Turn on the detergent dispenser switches.

4.Turn on the exhaust vent system (if applicable), and make sure it is operating.

5.Close the door(s). Push the power switch ON, light will illuminate. Machine will begin to fill via the fill valve and the final rinse piping.

6.When the tanks are full, wait until the wash tank has reached the proper temperature. Check the wash tank temperature gauges located on the control cabinet. Minimum wash temperatures are:

•MD-44 160°F/71°C to 175°F/79°C

•MD-66 160-175°F/71-79°C

•Final Rinse for all models is a minimum of 180-195°F/82-91°C.

•Prewash for MD-66 model has no temperature rating.

7.Push the Green start button. The cycle light illuminates indicating the dishwasher is ready for automatic operation.

8.Pre-scrap wares to remove large food particles and load wares into the dish racks.

DO NOT OVERLOAD RACKS.

9.Pegged racks are for plates and/or trays. Flat racks are for bowls and/or silverware. Spread silverware evenly in a single layer in a flat rack or upright (loosely packed) in a cutlery rack/cylinder.

10.Push a dish rack into the load-end of the dishwasher until it contacts the idle pump switch lever, the conveyor and pumps will start.

11.The dishwasher will run for 90 seconds to wash, rinse and move the dish rack out of the unload-end of the dishwasher.

12.Inserting another dish rack into the machine before the first rack exits will keep the dishwasher running until the last dish rack exits the machine.

13.Check the final rinse pressure and temperature as the racks pass through the final rinse. This final rinse pressure MUST be 20-22 psi [137.8-145 kPa] and the final rinse temperature MUST be a minimum of 180-195°F/82-91°C .

14.The pumps and the conveyor drive will automatically stop after the last rack exits the machine.

15.The machine may be stopped at any time during the cycle by pressing the red STOP pushbutton. The green light or LED will go out.

16.Check the interior of the dishwasher for any dish racks still in the machine. These dish racks must be washed again to ensure they are washed and sanitized completely.

17.To restart, push the green START pushbutton and push another dish rack into the dishwasher load-end until the pumps and conveyor start again.

18.Repeat steps 7-10 until all wares are washed.

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Contents Manual P/N 114725 rev. a National Service Department Business Reply Mail Important Important Revision History Limited Warranty MD-44 and MD-66 Rack Conveyor Dishwashers  Model Descriptions Model MD-44Receiving MD-44 Direction Field Conversion Parts Needed for Conversion Supplied by OthersOn next MD-44 Direction Field Conversion MD-44 Direction Field Conversion 10A 46-1/2 Changing Wire Connections in the Lower Junction Box MD44 Junction BOX Wiring Diagram Utilities Hot Water ConnectionsDrain Connections Ventilation ConnectionsElectrical Connections Machine Electrical Connection PlateGRD Vent Fan Signal Connection Chemical Signal ConnectionsRunning Signal Table Limit Switch Connections Curtain Locations Door Safety Switches Pump Intake Screen and Dual Float SwitchScrap Screens Installing the Lower Spray arm Assembly Installing the Upper Spray Arm Assembly Upper Wash Arm AssemblyGuide Pin Upper Wash ArmInstallation Installing the Pawl Bar Installing the Curtains Check list Power Switch Control Panel OperationOperation Do not Overload RacksCleaning RingDe-liming At the End of the DayMaintenance WeeklyCondition Cause Solution Service Replacement Parts Control Panel Decal 36 Control Cabinet 3-HOLE, PW-W-R HOUSING, SwitchCOVER, Control Cabinet PUSHBUTTON, RED SquareCabinet Control Cabinet Extended Vent Cowls Splash SHEILD, Vent 8 Extended Wash Tank Door, Panels and Curtains PANEL, END, Full MT-RACK ROD, CurtainGUIDE, U-CHANNEL, Door 14 329985 BRACKET, Water DiverterWash Tank Heat, Float Switch, and Scrap Screens WASHER, Spacer WASHER, Flat SSTClip 16 107440 THERMOMETER, 8 FT. FlangedWash Tank Junction Box Terminal Block TERMINAL, Single ST 2.5 Gray TERMINAL, SINGLE, ST 2/5 WH WhiteTERMINAL, Double Sttb TERMINAL, SINGLE, ST 2.5 BU BlueMD-66 Prewash Tank, Door and Curtains 11 110854 Float SWITCH, Rack Machine 24 329985 BRACKET, Water DiverterFill Piping 13 102388 BUSHING, Reducing 1/2 NPT X 1/4 NPT Brass NIPPLE, 3/4 NPT X Close Brass12 207082 TUBE, Booster OUTLET, 45 L-R Direction 900837 KIT, Repair Vacuum Breaker 3/4Final Rinse Piping Wash ARM Oring GASKET, Rinse MANIFOLD, 3/4 PipingNOZZLE, VEE-JET #8003 PLUG, E Final Rinse ManifoldMD-66 Prewash Spray Arms Manifold Taper ASSY. Upper Wash HEX Acorn Plain NUT, 1/4-20 SSTRing Standpipe WELDMENT, 1-1/4 OD MD66MD-44, MD-66 Wash Spray Arms Threaded PLUG, Wash ARM Manifold Taper ASSEMBLY, UpperGASKET, HEATER/STANDPIPE 13 333096 Standpipe Weldment 44 MT-RACK118 SWITCH, Reed Aleph MAGNET, Reed SwitchPIN, Idle Pump Switch PLATE, Track Adjustment MD-RACKMD-66 Track Assembly MAGNET, Reed Switch 10 327833 PIN, Idle Pump Switch 12 333082 Track WELDMENT, Front 44 MT-RACKMD-44 Pawl Bar Assembly 17 113714 Ring RETAINING, 3/8 OD Shaft PAWL, CradleCROSSHEAD, Pawl BAR HEX Acorn Plain NUT, 10-32 SSTMD-66 Pawl Bar Assembly 22 333643 CHANNEL, Drive Support PW 66 MT-RACK 167 SHEAVE, Motor AK51 Drive Motor SwitchBRACKET, Motor Switch Mounting PLATE, Drive Motor MountingConveyor Drive Assembly Roller STUD, Crosshead HOUSING, BEARING/SEALROLLER, Crosshead CRANK, Rack ARMPump/Motor Assembly Pump Seal Assembly PUMP/MOTOR Assembly Includes ItemsIMPELLER, 3.78 OD, Composite MTL Wash CLAMP, Hose M52 SST Gear Type Rewash Wash Qty Electric Booster Assembly 40F and 70F Rise To Final Rinse Electric Booster Assembly 40F and 70F Rise 1417 CAP, 3/4 NPT SST TEE, 1-1/2 NPT GalvanizedNIPPLE, 1-1/2 NPT X CLOSE, Galvanized PLUG, 3/4 NPT SQ. HD., BrassMD-66 Drain Asssembly Direction Shown 25 114817 Sleeve BEARING, 1/2 DIA. ROD Nylon 12 104165 CLAMP, Hose M40 SST GEAR-TYPE21 111034 Drain BODY, Machined Nipple TOE, 1-1/2 NPT X 6 LG. GalvDish racks RACK, PEG RACK, CombinationThis Intentionally Left Blank Rack Control Module Operation Electrical Schematics Module Rack Control Module RCM Operation Output Section Green Indicator Lights Rack Control Module RCM OperationRCM Status/Jumpers Rack Control Module RCM Indicator Lights Normal Operation SequenceDoors closed Rack switch Door Opened while Dishwasher is In-cycle RUN Light OFF RUN Light OFF JAM Switch OFFRUN Light ON. JAM Switch on RUN Light onLower Floats UP ALL Floats DownUpper Floats UP OFF Lights OFFPage Page Page This Intentionally Left Blank

MD-44, MD-66 specifications

Moyer Diebel has established a reputation as a leader in the commercial dishwashing industry, known for producing technologically advanced and reliable machines. Among their popular models are the MD-66 and MD-44, both designed to meet the needs of high-volume establishments. These machines exemplify Moyer Diebel's commitment to quality and efficiency.

The MD-66 is an energy-efficient dish machine suitable for large restaurants, hotels, and institutional kitchens. With a capacity to wash up to 66 racks per hour, it significantly speeds up the dishwashing process, making it ideal for busy environments. Its unique design features a dual rinse system that ensures consistent and thorough cleaning, while its adjustable wash cycles allow operators to customize the washing intensity based on the type of load – whether heavily soiled pots or delicate glassware.

Equipped with advanced technology, the MD-66 incorporates a microprocessor control system, providing users with real-time feedback on machine performance and diagnostics. This feature helps facilitate preventive maintenance, reducing downtime, and ensuring operational efficiency. The built-in energy efficiency measures contribute to lower utility costs, making this machine not only effective but also environmentally friendly.

Similarly, the MD-44 is designed for smaller establishments that still demand high efficiency. With a capacity of 44 racks per hour, it strikes a balance between compact design and powerful performance. This machine is particularly appealing for cafes, small restaurants, and catering operations. The MD-44 shares many features with the MD-66, including adjustable wash cycles and a robust rinse system, ensuring that even smaller operations receive the same level of cleanliness and hygiene.

Both the MD-66 and MD-44 utilize advanced spray technology, providing optimal water distribution to maximize cleaning effectiveness while minimizing water usage. The user-friendly interfaces on both models simplify operation, ensuring that staff can quickly learn to use the machines without extensive training.

In summary, Moyer Diebel’s MD-66 and MD-44 dishwashing machines combine high capacity, innovative technology, and efficiency to meet the varying needs of different sizes of commercial kitchens. Their robust designs and advanced features make them reliable investments for any foodservice establishment seeking to streamline their dishwashing processes while maintaining the highest standards of cleanliness and performance. These models reflect Moyer Diebel's focus on quality engineering, customer satisfaction, and environmental responsibility.
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