Moyer Diebel MD18, MD18-2 Technical Manual

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Page 1

Technical Manual

Automatic Glasswasher

Model MD18-1 MD18-2

July, 2003

P.O. Box 4183 Winston-Salem, North Carolina 27115-4183

Moyer Diebel, U.S. 336/661-1992 Fax: 336/661-1979

Manual P/N 0509243 REV. F

2674 N. Service Road Jordan Station, Ontario, Canada L0R 1S0

Moyer Diebel, Ltd.

905/562-4195

Fax: 905/562-4618

Machine Serial No.

Page 2

Complete the information below so it will be available for quick reference.

Model Number

__________________________

Serial Number

________________________

Voltage and Phase

______________________________________________________________

Moyer Diebel Parts Distributor

_______________________________

Phone

_____________

_____________________________________________________________________________

Moyer Diebel Service Agency

________________________________

Phone

_____________

_____________________________________________________________________________

Moyer Diebel Service:

Moyer Diebel Limited Moyer Diebel, US

Phone: 1-905-562-4195 Phone: 1-336-661-1992

1-800-263-5798 1-800-228-8350

Fax: 1-905-562-4618 Fax: 1-336-661-1660

NOTE: When calling to order parts, be sure to have the model number, serial number, voltage, and phase of your machine, along with your customer account number.

Page 3

REVISIONS

Revision History

Revision Revised Serial Number Comments

Date Pages Effectivity

10/30/95 — 301 Issue of Manual and Replacement Parts

1/xx/97 All 301 Expanded Parts List

3/12/01 18, 19 G2735 Redesign of scrap screen and sump cover

3/12/01 24, 25 — Replacement Impeller, Seal/Gasket kit,

and Inlet Screen

3/11/01 26, 27 — Added all drain valve components

2/5/03 29 — Replaced 108391 with 113622 thermometer

7/23/03 17 –– Replaced 110229 with 0310138

Page 4

THIS PAGE

INTENTIONALLY

LEFT BLANK

Page 5

CONTENTS

Page

WARRANTY.............................................................................................................................................. 1

INTRODUCTION....................................................................................................................................... 2

GENERAL .................................................................................................................................................. 3

INSTALLATION........................................................................................................................................ 5

Unpacking ............................................................................................................................................ 5

Electrical Connections.......................................................................................................................... 5

Plumbing Connections ......................................................................................................................... 6

Detergent .............................................................................................................................................. 6

Rinse-Aid ............................................................................................................................................. 6

Chemical Sanitizer ............................................................................................................................... 6

Completing Installation........................................................................................................................ 7

OPERATION .............................................................................................................................................. 8

Operation Summary ............................................................................................................................. 8

Operation Procedures ........................................................................................................................... 8

MAINTENANCE........................................................................................................................................ 10

Cleaning Schedule................................................................................................................................ 10

Deliming............................................................................................................................................... 11

Deliming Process.................................................................................................................................. 11

Maintenance Schedule.......................................................................................................................... 12

TROUBLESHOOTING .............................................................................................................................. 13

REPLACEMENT PARTS........................................................................................................................... 15

ELECTRICAL DIAGRAM......................................................................................................................... 36

TIMER CHART .......................................................................................................................................... 37

LIST OF FIGURES

Figure 1—Overall View.............................................................................................................................. 15

Figure 2—Door, Tracks, Safety Switch Assembly ..................................................................................... 16

Figure 3—Upper & Lower Wash Arms & Hubs.........................................................................................18

Figure 4—Fill Valve Assembly................................................................................................................... 20

Figure 5—Chemical Pump Assembly......................................................................................................... 22

Figure 6—Wash Pump Assembly ............................................................................................................... 24

Figure 7—Fill System & Drain System ...................................................................................................... 26

Figure 8—Heating Element, Thermostat, Temperature Gauge................................................................... 28

Page 6

CONTENTS

Figure 9—Control Panel and Timer Assembly......................................................................................... 30

Figure 10—Back Panel................................................................................................................................ 32

Figure 11—Rack ......................................................................................................................................... 34

Figure 12—Wiring Schematic..................................................................................................................... 36

Figure 13—Timer Chart.............................................................................................................................. 37

Page 7

WARRANTY

Champion Industries/Moyer Diebel Limited, P.O. Box 4183, Winston-Salem, North Carolina 27115, and P. O. Box 301, 2674 North Service Road, Jordan Station, Ontario, Canada L0R 1S0 warrants machines, and parts, as set out below.

Warranty of Machines:

Champion Industries/Moyer Diebel Limited warrants all new machines of its manufacture bearing the name “Champion” or "Moyer Diebel" and installed within the United States and Canada to be free from defects in material and workmanship for a period of one (1) year after the date of installation or fifteen (15) months after the date of shipment by Champion/Moyer Diebel, whichever occurs first. [See below for special provisions relating to Model Series DF and SW.] The warranty registration card must be returned to Champion/Moyer Diebel within ten (10) days after installation. If warranty card is not returned to Champion/Moyer Diebel within such period, the warranty will expire after one year from the date of shipment.

Champion/Moyer Diebel will not assume any responsibility for extra costs for installation in any area where there are jurisdictional problems with local trades or unions.

If a defect in workmanship or material is found to exist within the warranty period, Champion/Moyer Diebel, at its election, will either repair or replace the defective machine or accept return of the machine for full credit; provided, however, as to Model Series DF and SW, Champion/Moyer Diebel's obligation with respect to labor associated with any repairs shall end (a) 120 days after shipment, or (b) 90 days after installation, whichever occurs first. In the event that Champion/Moyer Diebel elects to repair, the labor and work to be performed in connection with the warranty shall be done during regular working hours by a Champion/Moyer Diebel authorized service technician. Defective parts become the property of Champion/Moyer Diebel. Use of replacement parts not authorized by Champion/Moyer Diebel will relieve Champion/ Moyer Diebel of all further liability in connection with its warranty. In no event will Champion/Moyer Diebel's warranty obligation exceed Champion/Moyer Diebel's charge for the machine. The following are not covered by Champion/Moyer Diebel's warranty:

a. Lighting of gas pilots or burners. b. Cleaning of gas lines. c. Replacement of fuses or resetting of overload breakers. d. Adjustment of thermostats. e. Adjustment of clutches. f. Opening or closing of utility supply valves or switching of electrical supply current. g. Adjustments to chemical dispensing equipment. h. Cleaning of valves, strainers, screens, nozzles, or spray pipes. i. Performance of regular maintenance and cleaning as outlined in operator’s guide. j. Damages resulting from water conditions, accidents, alterations, improper use, abuse,

tampering, improper installation, or failure to follow maintenance and operation procedures.

Examples of the defects not covered by warranty include, but are not limited to: (1) Damage to the exterior or interior finish as a result of the above, (2) Use with utility service other than that designated on the rating plate, (3) Improper connection to utility service, (4) Inadequate or excessive water pressure, (5) Corrosion from chemicals dispensed in excess of recommended concentrations, (6) Failure of electrical components due to connection of chemical dispensing equipment installed by others, (7) Leaks or damage resulting from such leaks caused by the installer, including those at machine table connections or by connection of chemical dispensing equipment installed by others, (8) Failure to comply with local building codes, (9) Damage caused by labor dispute.

Warranty of Parts:

Champion/Moyer Diebel warrants all new machine parts produced or authorized by Champion/Moyer Diebel to be free from defects in material and workmanship for a period of 90 days from date of invoice. If any defect in material and workmanship is found to exist within the warranty period Champion/Moyer Diebel will replace the defective part without charge.

DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY. CHAMPION/MOYER DIEBEL'S WARRANTY IS ONLY TO THE EXTENT REFLECTED ABOVE. CHAMPION/MOYER DIEBEL MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF MERCHANTABILITY, OR FITNESS OF PURPOSE. CHAMPION/MOYER DIEBEL SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. THE REMEDIES SET OUT ABOVE ARE THE EXCLUSIVE REMEDIES FOR ANY DEFECTS FOUND TO EXIST IN CHAMPION/MOYER DIEBEL DISHWASHING MACHINES AND CHAMPION/MOYER DIEBEL PARTS, AND ALL OTHER REMEDIES ARE EXCLUDED, INCLUDING ANY LIABILITY FOR INCIDENTALS OR CONSEQUENTIAL DAMAGES.

Champion/Moyer Diebel does not authorize any other person, including persons who deal in Champion/Moyer Diebel dishwashing machines, to change this warranty or create any other obligation in connection with Champion/Moyer Diebel Dishwashing Machines.

rev. 8699

LIMITED WARRANTY

Page 8

INTRODUCTION

Welcome to Moyer Diebel. Thank you for choosing Moyer Diebel and for allowing us to take care of your glasswashing/

warewashing needs. This manual covers two models (MD 18-1, MD 18-2). Model numbers are shown on the front cover. Your machine has been completely assembled, inspected, and thoroughly tested at our factory to

eliminate problems at installation before it was shipped to your installation site. This manual provides:

• Warranty information

• Installation and operation procedures

• Maintenance instructions

• Troubleshooting guide

• Replacement parts lists.

• Electrical diagrams. Complete and return your warranty registration card as soon as possible. Moyer Diebel constantly improves its products; therefore, specifications contained in this

manual may have changed. For your protection, factory authorized parts should always be used. Replacement parts may be ordered from your Moyer Diebel authorized parts distributor or

service agency*. When ordering parts, supply the model number, serial number, voltage and phase of your machine, the part number, part description, and quantity.

*Moyer Diebel can only ship parts to customers with accounts or by C.O.D.

Page 9

GENERAL

This manual covers the Moyer Diebel automatic glasswashing machine. Standard equipment includes:

-Automatic tank fill -Upper and lower wash/rinse arms

-Common utility connections -Two racks

-120 Volt circuit -Stainless steel heavy-gauge construction

-Convenient, easy to use controls -Pumped Drain

-Three chemical pumps

This series of glasswashers is available in the following models:

Model Numbers

MD18-1, MD18-2

• The MD18-1 model is a single door chemical sanitizing rack glasswashing/warewashing machine.

• The MD18-2 model is a two door chemical sanitizing rack glasswashing/warewashing machine.

(specify front to back or side-to-side operation)

Accessories

• RS19-24 - 19" wide rack stand with 24" high drain board

• RS19-30 - 19" wide rack stand with 30" high drain board

• RS25-24 - 25" wide rack stand with 24" high drain board

• HS1930 - 19" wide hand sink with scrap basket (30" high)

Options

• P/N 0709242 - Cycle Counter

• P/N 0709241 - Remote cycle switch

• Racks - Peg, Flat, Glass

Page 10

GENERAL

Electrical Power Requirements

Booster Machine Power Requirement

Model Voltage Rise Full Load Amp (125% Service Factor) MD18-1 115/60/1 N/A 12 15 MD18-2 115/60/1 N/A 12 15

NOTE:

All machines come with a 5 Foot cord and plug. Standard 15 amp receptacle required.

Page 11

INSTALLATION

Unpacking

WARNING:

Care should be taken when lifting the machine to prevent damage.

1. Immediately after unpacking your machine, inspect for any shipping damage. If damage is found, save the packing material and contact the carrier immediately.

2. Remove the glasswasher from the skid. Adjust the feet if required, then move the machine to its permanent location.

3. Level the machine (if required) by placing a level on the top of the machine and adjusting the leveling feet. Level the machine front-to-back and side-to-side.

CAUTION:

After locating your machine, it must meet local health codes.

Electrical Connections

WARNING:

Electrical and grounding connections must comply with the National Electrical Code and/or Local Electrical Codes.

WARNING:

When working on the glasswasher, disconnect the electric service and tag it to indicate work is being done on that circuit.

1. The electrician should compare the electrical specifications on the machine to the electrical power supply before connecting the machine to the incoming service at a fused disconnect switch.

2. Your machine is already equipped with a 5-foot/1.5m power cord and plug suitable for 115V-15A service.

Page 12

INSTALLATION

Plumbing Connections

CAUTION:

Plumbing connections must comply with local sanitary and plumbing codes.

Water Connections

1. Connect the hot water supply (140

F/60oC Min) to the fill solenoid valve (located behind the front panel). The fill solenoid valve is equipped with a flow control that will accept water pressures from 20 psi to 70 psi.

2. Install a manual shut-off valve in the water supply line to accommodate servicing the machine. The shut-off valve should be the same size or larger than the supply line.

3. The fill solenoid valve is equipped with a built-in strainer to protect from particles in the water supply.

Drain Connections

1. Your Moyer Diebel glasswasher is supplied with a flexible 5/8" I.D. drain hose, which must be connected to a 1-1/2" drain using a wye (Y) fitting. Additional drain hose may be purchased from a Moyer Diebel parts distributor.

Detergent

1. Use a qualified detergent/chemical supplier for your detergent, rinse aid, and chemical sanitizer needs.

2. Your machine is supplied with a chemical dispensing system that is internally wired and ready for use. Insert the labeled Chemical pickup tubes into the correct containers. The pickup tubes have a strainer on the end to prevent crystallized chemical from clogging the supply lines.

3. The cycle timer located in the main control cabinet is equipped with adjustable cams for the chemical dispensing pump(s). The cams control the length of time that the pumps operate. A qualified person should adjust the cam settings if necessary. Refer to the timer chart diagram(s) at the end of the manual for timer cam locations and factory time settings.

NOTE:

A nonchlorinated, nonfoaming commercial detergent is recommended for your glasswasher.

Rinse Aid

1. Using a liquid rinse aid, insert the labeled Rinse Aid pickup tube into the rinse aid container.

Chemical Sanitizer

1. Using a 5.25% or 8.4% sodium hypochlorite solution, insert the labeled Chemical Sanitizer pickup tube into the chemical sanitizer container.

2. Contact your chemical supplier for adjustment of the chemical sanitizer.

Page 13

INSTALLATION

Completing Installation

1. Remove any foreign material from inside the machine.

2. Check to assure scrap basket and sump cover are in place.

3. After plumbing and electrical connections are completed, check the machine for water leaks by depressing the ON/FILL switch on the front panel, then close and latch the door(s). This allows the tank to fill and to complete the rinse cycle. Check for leaks.

4. Open the door and check the water level. Water level should be at bottom of scrap screen.

5. Depress the OFF/DRAIN switch, close door, push start switch to drain the tank. This allows the machine to complete the wash and drain cycle. Check the drain plumbing for leaks.

6. Installation is now complete.

Front Side of Tank

Indicates where proper water level should appear in the inlet chute area.

Page 14

OPERATION

Operation Summary

The following is a summary of your Glasswashing Machine operating cycle:

1. The cycle begins when you close the door and push the cycle switch.

2. The green cycle lamp lights and the pump starts.

3. The pump runs during the wash cycle.

4. The pump stops, and the drain valve is opened.

5. After a 2-3 second pause, the pump drain cycle begins.

6. After a 2-3 second pause, the fill valve opens, and the pump starts for the rinse cycle.

7. When the rinse cycle is complete, the pump stops, the green cycle lamp turns off, and the cycle is complete.

8. Open the door and remove the rack of clean ware.

Operation Procedures

The operation of your glasswasher will be more efficient when these procedures are followed:

1. Check that the spray arms and scrap basket are in place.

2. Close the door(s). Push the ON/FILL switch to the ON position. The tank will begin filling with water. This procedure is followed only when the tank is empty.

3. When the tank is full, check the wash tank temperature gauge. Minimum wash temperature is 140°F/60°C.

4. Scrap all glasses to be washed, and load the glasses into the rack. DO NOT OVERLOAD THE RACK.

5. Open the door and insert the rack into the machine.

6. Shut the door, push cycle switch. This will start the wash cycle. The green cycle lamp located on the front control panel will light. This lamp will remain on until the entire wash and rinse cycle is completed.

Page 15

OPERATION

NOTE:

The machine may be stopped at any time by opening the door. When restarted, the cycle does not start over. It will continue from the point at which it was interrupted.

7. The pump will automatically stop and the green cycle light will turn off indicating the cycle is completed.

8. Open the door and remove the rack.

9. Repeat steps 4-9 for additional cycles.

10. CLEAN the scrap basket after every use period. During heavy usage, the scrap basket should be cleaned more frequently.

CAUTION:

Poor machine performance and/or damage to the machine can occur if the scrap basket becomes clogged with soil or waste particles.

11. After completing usage for the day, water in the tank should be drained by depressing the OFF/DRAIN switch and closing the door(s). Push the start switch. This initiates a wash and drain cycle that drains the tank.

CAUTION:

DO NOT LEAVE WATER IN THE TANK OVERNIGHT. Water left in the tank overnight will allow corrosive chemicals to deteriorate the tank.

Page 16

MAINTENANCE

The efficiency and life of your machine is increased by regularly scheduled preventive maintenance. A well maintained machine gives better results and service. An investment of a few minutes of daily maintenance will be worthwhile.

The best maintenance you can provide is to keep your machine clean. Components that are not regularly cleaned and flushed will clog and become inoperative.

Intervals shown in the following schedules represent an average length of time between necessary maintenance. Maintenance intervals should be shortened whenever your machine is faced with abnormal working conditions, hard water, or multiple shift operations.

Cleaning Schedule

• Daily-Every 8 Hours

1. Depress the OFF/DRAIN switch to OFF and close the door. Push cycle switch to drain the tank.

2. Open the door and remove both the upper and lower spray arms by unscrewing the knurled fastener holding each spray arm.

3. Remove the scrap basket carefully to keep soil or waste particles from falling into the sump.

4. Clean inside the tank with clean water. Backflush the scrap basket until it is clean. Do not strike the scrap basket against solid objects.

5. Clean the wash arms to remove any debris from spray openings. Do not strike the spray arms against solid objects.

6. Reinstall the scrap basket and spray arms.

7. Leave the door open overnight to allow drying.

8. Report any unusual conditions to your supervisor.

• Use Periods

1. Clean the scrap basket after every use period and more frequently during heavy usage. Do not allow the scrap basket to become clogged with soil or waste particles.

Page 17

MAINTENANCE

Deliming

Your glasswasher should be delimed regularly as required. This will depend on the mineral content of your water.

Inspect your machine interior for lime deposits. If deliming is required, a deliming agent should be used for best results.

DANGER:

Deliming solution or other acids must not come in contact with household bleach (sodium hypochlorite) or any chemicals containing chlorine, iodine, bromine, or fluorine. Mixing will cause hazardous gases to form. Skin contact with deliming solutions can cause severe irritation and possible chemical burns. Consult your chemical supplier for specific safety precautions.

Contact Chemical supplier for delime chemical and instruction on how to use.

Page 18

MAINTENANCE

Maintenance Schedule

• As Required

1. Check the temperature gauge reading.

2. Check the chemical supplies and refill as necessary.

• Weekly

1. Inspect all water lines for leaks and tighten them at joints if required.

2. Clean all detergent residue from the exterior of the machine.

3. Check the drain for leaks.

4. Clean accumulated scale from the heating element.

5. Remove and closely inspect each spray arm for blockage.

6. Check for damage to the scrap screen. Ineffective screening can cause wash system

failures.

7. Flush the detergent, sanitizer, and rinse aid supply tubes by the following procedure:

a. Remove the detergent, sanitizer, and rinse aid pick-up tube(s) from the

container(s). Place the tube(s) into a container of hot water.

b. Depress and hold the DET prime switch (located on the front panel) until clear

water enters the tank through the fill air gap (located on the side of the tank).

c. Follow the same procedure by pressing the SANITIZER and/or the RINSE

AID prime switch until clear water enters the tank through the fill air gap.

d. When completed, remove the pickup tubes from the hot water and reinsert them

into the correct chemical containers. Repeat the priming procedures to ensure that chemicals have filled the tubes for the next operating period.

e. Run a complete cycle to flush chemicals from the tank.

Page 19

TROUBLESHOOTING

Before determining any specific cause of a breakdown or abnormal operation of your glasswasher, check that:

1. All switches are ON.

2. Wash arms are clean.

3. Scrap screen is properly positioned and clean.

4. Thermostat(s) are at their correct setting.

5. Sanitizer, detergent, and rinse additive dispensers are adequately filled.

6. All plumbing valves are open. If a problem still exists, use the following table for troubleshooting.

CONDITION CAUSE SOLUTION

Machine will not start Door not closed .................................. Make sure door is fully closed

Main switch off, or unit unplugged .... Check disconnect or plug into outlet

Low or no water Main water supply is turned off ......... Turn on house water supply

Chemical not feeding No chemical in container..................... Replace or fill container

Feed tubes to/from chemical ............... Clear obstruction and flush

pump clogged with hot water

Screen on feed tube clogged................ Clean and replace

Tubing kinked or split ......................... Straighten or replace tubing

Water temperature Incoming water temperature................ Raise temperature to

is low when in use at machine too low 60°C/140°F for all machines

Insufficient pumped spray Clogged spray arm .............................. Clean

pressure Scrap screen full.................................. Must be kept clean and in place

Poor washing results Detergent dispenser not....................... Contact service agent

operating properly

Insufficient detergents......................... Check and fill

Contact detergent supplier

Detergent setting too low ................... Contact detergent supplier

Wash water temperature too low......... Check incoming water temp

Wash arm clogged .............................. Clean wash arm

Improperly scrapped glasses ............... Check scrapping procedures

Ware being improperly........................ Use proper racks - do not overload

placed in rack racks

Improperly cleaned ............................. Unclog wash arms to maintain

equipment proper pressure and flow conditions

Electric element has ............................ Clean and delime

soil/lime buildup

Machine overflows on Wash pump impeller........................... Remove pump assembly and clean impeller

to floor plugged with trash

Page 20

TROUBLESHOOTING

CONDITION CAUSE SOLUTION

No water in wash well Opening door prior.............................. Close door. Wait for green cycle light

to cycle completion to go out before opening door.

No water in wash tank Door not closed................................... Close door.

after activating the Wait for wash tank to fill. ON/FILL switch

Page 21

MODEL MD18-1

OVERALL VIEW

Figure 1 — Overall View of MD18-1

Fig. 1 Part Description Qty Item No. No.

1 0709072 Hood, one door model................................................................ 1

0709074 Hood, two door model................................................................ 1

1 0709421 Hood, welded (High hood models only) .................................... 1

2 0709069 Door, service .............................................................................. 1

3 0309085 Hinge, service door .................................................................... 1

4 111370 Screw (10-32 x 5/8 hex hd w/washer SS) .................................. 2

5 0508751 Screw (10-32 x 1-1/2 truss hd SS) ............................................. 1

6 0509671 Legs 4" (Optional)...................................................................... 4

6 112587 Legs 6" ....................................................................................... 4

3 4

Page 22

REPLACEMENT PARTS

Figure 2 — MD18-1, MD18-2 Door, Tracks, Safety Switch

Page 23

REPLACEMENT PARTS

1 110228 Pin, door ..................................................................................... 2

2 0310138 Support, door.............................................................................. 2

3 0709071 Door assembly (Does not include items 1, 2, 4-7,

17, 18) MD18-1.......................................................................... 1

MD18-2 ...................................................................................... 2

3 0709414 Door Assembly (Does not include items 1, 2, 4-7, 17, 18)

High hood only........................................................................... 1

4 0501538 Nut (8-32 SS) ............................................................................. 2

5 0501497 Lockwasher ................................................................................ 2

6 0501425 Screw (8-32 x 5/8 rd hd SS)....................................................... 2

7 110233 Catch, door ................................................................................. 1

8 107137 Bolt (10-32 x 7/8 hex SS)........................................................... 4

9 0309123 Guide, rack RH........................................................................... 1

10 0309124 Guide, rack LH........................................................................... 1

11 0501539 Nut (1/4-20 SS) .......................................................................... 4

12 0501501 Lockwasher ................................................................................ 4

13 0501419 Bolt (1/4-20 x 1/2 hex SS).......................................................... 4

14 107893 Shock absorber, door, per door .................................................. 2

*15 0309301 Bracket, door magnet, long ........................................................ A/R

*16 0309102 Bracket, door magnet, short ....................................................... A/R

17 0509251 Thumbscrew (1/4-20 x 2-3/4 SS), per door................................ 1

18 0501539 Nut (1/4-20 x 1/2 SS), per door ................................................. 1

19 104985 Nut (10-32 SS), per door............................................................ 2

20 0501412 Screw (10-32 x 3/8 truss hd SS), per door ................................. 2

21 111026 Magnet, door safety, per door..................................................... 1

22 111090 Switch, magnetic reed, per door................................................. 1

#23 0309228 Bracket, front switch mounting.................................................. A/R

#24 0309229 Bracket, rear switch mounting ................................................... A/R

#25 0309236 Bracket, corner switch mounting ............................................... A/R

26 0501449 Screw (6-32 x 3/8 rd hd SS) (Not shown)

per switch bracket....................................................................... 2

27 108954 Nut (6-32 SS Nylite) (Not shown), per switch bracket.............. 2

*MD18-1 Requires (1) 0309301 bracket.

MD18-2 Front-to-Back configuration requires (1) 0309301 and (1) 0309102.

MD18-2 Side-to-Side configuration requires (2) 0309301.

#MD18-1 Requires (1) 0309228.

MD18-2 Front-to-Back requires (1) 0309228 and (1) 0309229.

MD18-2 Side-to-Side requires (1) 0309228 and (1) 0309236.

MD18-1, MD18-2

DOOR, TRACKS, SAFETY SWITCH

Fig. 2 Part Part Description Qty Item No. No.

Page 24

REPLACEMENT PARTS

Figure 3 — Upper & Lower Wash Arms & Hubs

12111413

After Serial # G2735

Page 25

REPLACEMENT PARTS

MD18-1, MD18-2

UPPER & LOWER WASH ARMS & HUBS

Fig. 3 Part Part Description Qty Item No. No.

1 0709105 Scrap screen assembly (Prior to Serial no. G2735).................... 1

1 0710339 Scrap screen assembly (After Serial no. G2735)........................ 1

2 0309113 Cover, wash tank ........................................................................ 1

3 107964 Grommet, snap bushing.............................................................. 2

4 0709479 Cover, sump assy. (Prior to Serial no. G2735) ........................... 1

4 0710339 Scrap Screen (After Serial no. G2735)....................................... 1

5 0709131 Upper spray arm, without bearing.............................................. 1

6 0505042 Upper spray arm pivot................................................................ 1

7 0308783 Clip, pivot retaining.................................................................... 1

8 0501563 Screw (8-32 x 3/8 truss hd SS)................................................... 2

9 0508541 Support, upper spray arm ........................................................... 1

0709130 Complete upper wash arm assembly (Includes items 5-9)

10 0709127 Lower spray arm, without bearing.............................................. 1

11 0501684 Locknut....................................................................................... 1

12 0308158 Clip, locknut retaining................................................................ 1

13 0501563 Screw (8-32 x 3/8 truss hd SS)................................................... 2

14 0505044 Support, lower spray arm ........................................................... 1

0709126 Complete lower wash arm assembly (Includes items 11-15)

15 0709134 Lower wash arm manifold.......................................................... 1

16 0501419 Bolt (1/4-20 x 1/2 hex SS).......................................................... 4

17 0309212 Gasket, manifold......................................................................... 1

18 0708650 Manifold, upper wash arm.......................................................... 1

19 0501412 Screw (10-32 x 3/8 truss hd SS)................................................. 3

20 0507265 Hose 5/8 ID x 7/8 OD, per ft. ..................................................... 3

21 0508808 Clamp, 3/4 gear SS..................................................................... 1

Page 26

REPLACEMENT PARTS

Figure 4 — Fill Valve Assembly

Solenoid Valve Detail

Page 27

REPLACEMENT PARTS

MD18-1, MD18-2

FILL VALVE ASSEMBLY

Fig. 4 Part Description Qty Item No. No.

1 0504952 Valve, fill solenoid...................................................................... 1

2 0503713 Elbow, street 1/2 FPT x 3/8 MPT............................................... 1

3 0502618 Coupling, reducing 1/2 FPT x 3/8 MPT..................................... 1

4 0300203 Clamp, fill valve support............................................................ 1

5 0300065 Support, fill valve....................................................................... 1

6 0502653 Elbow, 3/8 MPT x 1/2 hose (90 degree)..................................... 1

0502618 Coupling, reducing 1/2 FPT x 3/8 MPT (Straight) .................... 1

7 0503679 Clamp, hose................................................................................ 1

8 0507265 Hose, 5/8 ID x 7/8 OD PVC braid ............................................. 1

9 0501419 Bolt (1/4-20 x 1/2 hex SS).......................................................... 3

10 0501501 Lockwasher ................................................................................ 3

11 0502811 Kit, valve repair.......................................................................... 1

12 0504958 Washer, flow............................................................................... 1

13 0502803 Screen......................................................................................... 1

14 0505235 Coil, 115VAC ............................................................................. 1

Page 28

REPLACEMENT PARTS

Figure 5 — Chemical Pump Assembly

Page 29

REPLACEMENT PARTS

MD18-1, MD18-2

CHEMICAL PUMP ASSEMBLY

Fig. 5 Part Description Qty Item No. No.

1 0709100 Chemical pump assembly........................................................... 1

2 0501519 Tie, nylon 4 inch (One at each indication)................................. 6

3 0502666 Hose, 1/8 ID x 1/4 OD, per foot................................................. A/R

4 0502667 Hose, 1/4 ID x 3/8 OD, per foot................................................. A/R

5 0501419 Bolt (1/4-20 x 1/2 hex SS).......................................................... 2

6 0501501 Lockwasher ................................................................................ 2

7 0306363 Tubing, stiffener......................................................................... 3

8 0501869 Strainer ....................................................................................... 3

9 0502644 Elbow, 1/4 hose barbed .............................................................. 2

10 0309101 Bracket, chemical pump............................................................. 1

11 0504822 Screw (8-32 x 1/2 pan hd Phillips SS) ....................................... 10

12 0506589 Screw (6-32 x 7/8 pan hd Phillips SS) ....................................... 4

(2 each included with item 17, element tube)

13 0503695 Label, “DETERGENT”.............................................................. 1

14 0503694 Label, “SANITIZER”................................................................. 1

15 0505483 Label, “RINSE”.......................................................................... 1

16 0503756 Motor, injector............................................................................ 2

17 0706635 Tube, element assembly 45 cc.................................................... 2

(Includes mounting screws)

18 0707142 Rotor assembly........................................................................... 2

19 0503757 Motor, pump drive, with reducer................................................ 1

20 109829 Pump, detergent.......................................................................... 1

21 108194 Tube, 3/16 ID x 3/8 OD.............................................................. 1

22 0501425 Screw (8-32 x 5/8 rd hd SS)....................................................... 2

Page 30

REPLACEMENT PARTS

Figure 6 — Wash Pump Assembly

See block below

for new impeller

and Seal/Gasket kit. This style no longer available.

Page 31

REPLACEMENT PARTS

MD18-1, MD18-2

WASH PUMP ASSEMBLY

Fig. 6 Part Description Qty Item No. No.

1 0509096 Pump, wash MD-18.................................................................... 1

2 0509235 Hose, 1-1/4 x 1-5/8 braided (3 inch length) ............................... 1

3 0502571 Clamp, 1-1/2 gear ....................................................................... 2

4 0509239 Elbow, 1-1/4 hose x 1 FPT PVC ................................................ 1

5 0509282 Capacitor, motor starting............................................................ 1

6 0509303 Housing, pump kit ...................................................................... 1

(Includes 8-32 x 1-3/4 round head Phillips screws

and #8 washers)

7 0510222 Kit, Seal and gasket .................................................................... 1

8 0501419 Bolt (1/4-20 x 1/2 hex SS).......................................................... 4

9 0501501 Lockwasher................................................................................. 4

10 0709393 Screen, inlet ................................................................................ 1

11 0510221 Impeller, Stainless Steel.............................................................. 1

Page 32

REPLACEMENT PARTS

From Detergent Pump

(See Corresponding Pump For Hose)

From  Sanitizer Rinse-aid  Pumps



Front Side of Tank

From Fill Valve

Figure 7 — Fill System & Drain System

1512

Page 33

REPLACEMENT PARTS

MD 18-1, MD 18-2

FILL SYSTEM AND DRAIN SYSTEM

Fig. 7 Part Description Qty Item No. No.

1 0507265 Hose, 5/8 ID x 7/8 OD PVC braided.......................................... 3

2 0509324 Elbow, 5/8 inch 90° plastic barbed............................................. 1

3 0501518 Tie, nylon 5-1/2 inch .................................................................. 2

4 106090 Plate, tie wrap bracket ................................................................ 2

5 107966 Nut (10-32 Nylite)...................................................................... 7

6 0509048 Gasket, inlet chute...................................................................... 1

7 0508867 Chute, inlet ................................................................................. 1

8 0501519 Tie, nylon 4 inch (Not shown).................................................... 3

*9 0709223 Valve, drain (Complete assembly) ............................................ 1

— 0509224 Body, drain valve (Body only) (Not shown) .............................. A/R

— 0509225 Gasket drain cover (Not shown)................................................. 1

10 0509302 Hose, 5/8 ID x 7/8 OD x 60 inch braided................................... 1

11 0709285 Solenoid, drain valve ................................................................. 1

— 0509225 Solenoid coil, drain valve (Not shown)...................................... 1

12 0509184 Pipe, valve extension.................................................................. 1

13 0709134 Manifold, bottom........................................................................ 1

14 0503679 Clamp, hose ............................................................................... 5

15 0509235 Hose, 1-1/4 ID x 1-5/8 OD x 4 inch braided .............................. 26

16 0509226 Spring, drain valve ..................................................................... 1

17 0709252 Flapper pivot assembly............................................................... 1

18 0709140 Drain flapper assembly............................................................... 1

19 0309392 Valve support bracket................................................................. 1

* 0709223 Includes items 11, 16, 17, 18

Page 34

REPLACEMENT PARTS

Figure 8 — Heating Element, Thermostat, Temperature Gauge

Page 35

REPLACEMENT PARTS

MD18-1, MD18-2

HEATING ELEMENT, THERMOSTAT, TEMPERATURE GAUGE

Fig. 8 Part Description Qty Item No. No.

1 0501650 Adapter, thermostat .................................................................... 1

2 0501836 O-ring, thermostat adapter.......................................................... 1

3 0507323 Thermostat, wash tank................................................................ 1

4 108954 Nut (6-32 Nylite)........................................................................ 2

5 110562 Thermostat, bi-metal .................................................................. 1

6 0507315 Heater, 240 Volt 3kw (Includes O-ring) ..................................... 1

7 0503588 O-ring, replacement (Included with heater) ............................... 1

8 0501412 Screw (10-32 x 3/8 truss hd) ...................................................... 2

9 0501450 Screw (6-32 x 1/4 round hd NIBS) ............................................ 2

10 0300096 Bracket, thermostat..................................................................... 1

11 113622 Thermometer, flange type 4 ft./1.2 M Gas Filled (Includes

mounting hardware) (Replaces 108391) .................................... 1

Page 36

REPLACEMENT PARTS

Figure 9 - Control Panel and Timer Assembly

Page 37

REPLACEMENT PARTS

MD18-1, MD18-2

CONTROL PANEL AND TIMER ASSEMBLY

Fig. 9 Part Description Qty Item No. No.

1 0509090 Overlay, switch (ENGLISH) ...................................................... 1

0509363 Overlay, switch (FRENCH) ....................................................... 1

2 0509089 Switch, lighted push button........................................................ 1

3 0501361 Switch, rocker DPDT ................................................................. 1

4 0501369 Switch, spring return .................................................................. 2

5 0503749 Board, terminal 11 point............................................................. 1

6 0503648 Screw (8-32 x 5/16 NIBS pan hd SS) ........................................ 1

7 0308644 Bracket, timer support................................................................ 1

8 0501408 Screw (8-32 x 1/4 truss hd SS)................................................... 4

9 0501450 Screw (6-32 x 3/16 NIBS Round hd SS).................................... 2

10 0509227 Motor, timer................................................................................ 1

11 0501379 Switch, timer .............................................................................. 8

12 0503701 Bearing, timer shaft.................................................................... 1

13 111068 Relay, 2PDT 10A 120VAC ........................................................ 1

14 0501408 Screw (8-32 x 1 truss hd SS)...................................................... 2

– 0709076-S Timer & Cam Assembly (Includes items 7-12)

Page 38

REPLACEMENT PARTS

Figure 10 — Back Panel and Cover Support Bracket

Page 39

REPLACEMENT PARTS

MD18-1, MD18-2

BACK PANEL AND COVER SUPPORT BRACKET

Fig. 10 Part Description Qty Item No. No.

1 0309237 Panel, rear................................................................................... 1

2 0501412 Screw (10-32 x 3/8 truss hd SS)................................................. 4

3 104985 Nut (10-32 SS) ........................................................................... 2

4 0309238 Support, tank cover .................................................................... 1

Page 40

REPLACEMENT PARTS

Figure 11 — Racks

Page 41

REPLACEMENT PARTS

MD18-1, MD18-2

RACKS

Fig. 11 Part Part Description Qty Item No. No.

1 110353 Rack, flat 16 in. .......................................................................... 1

2 112142 Divider, lower glassrack............................................................. 4

3 112141 Divider, upper glassrack............................................................. 4

4 110352 Rack, peg 16 in........................................................................... 1

* Glassracks using adjustable dividers may be made up with either 16, 25, or 36 compartments. Number of compartments determines the number of dividers needed.

Page 42

ELECTRICAL DIAGRAM

Figure 12 — Wiring Schematic

10 20 30 40 50 60 70 80 90

TIME IN SECSCAM

PUMP MOTOR

DRAIN VALVE

FILL VALVE

RINSE AID

SANITIZER

DETERGENT AUTO

HOMING

FILL-DRAIN

TIMING CHART

STATE OF DIAGRAM

- POWER ON

- END OF CYCLE

- DOOR CLOSED

CAM 8 CYCLE

CLT CYCLE ON LIGHT

MODEL

NUMBER/REV

HEAT

ELEC

MD-18

0509232 E

PSS

CAM 6

PSDR

CAM 2

CAM 3

HLTS

WTS

TO CUSTOMER RECEPTACLE

BRN BROWN

BLK BLACK

CAM 7 DETERGENT

CAM 6 SANITIZER

CAM 5 RINSE

CAM 4 FILL

CAM 3 DRAIN

CAM 2 PUMP MOTOR

MSW

GRN

WHT

BLK

BRN

GND

F V

CAM 7

CAM 5

CAM 4

D V

CLT

CAM 8

CAM 1

CAM 1 HOMING

WHTR

115V 60Hz

GND

310

PSB

START

CAPACITOR

WASH PUMP

BLK WHT

ON TWO DOOR

BRN

BLK

MODEL ONLY

PSB PUSH START BUTTON

PSDR PRIME SWITCH DET, RINSE

PSS PRIME SWITCH SANITIZER

HTLS HIGH LIMIT THERMOSTAT

MSW MAIN SWITCH ON/OFF

GRN GREEN

GND GROUND

FV FILL VALVE

DV DRAIN VALVE

DP DRAIN PUMP (IF USED)

DM DETERGENT MOTOR

RC RELAY COIL

RS REED SWITCH

SM SANITIZER MOTOR

WHT WHITE

WHTR WATER HEATER

WTS WATER THERMOSTAT

TM TIMER MOTOR

RM RINSE MOTOR

RL RELAY

OFF

SCHEMATIC MD18

1:1

DEC

22-95

5140

CHANGED SIZE OF SCHEMATIC TO FIT DOOR PANEL

JAN

04-96

SKH

MAY

29-03

REVISED TO SHOW RL IN NC STATE

5168

AUG

14-96

REVISED TO SHOW RL IN PROPER STATE

DWG STATE CHANGED FROM "POWER OFF" TO "POWER ON" & "BEGINNING OF CYCLE" TO "END OF CYCLE"

SKH

JUN

03-03

HOLE DIMENSIONS

RTG.

CH.

DR.

ISSUED

UNLESS OTHERWISE NOTED

BRAKELINE TO BRAKELINE

FORMING:DIMENSIONS ARE FROM

SCALE

ANGLE

DECIMAL

TOLERANCE

REV

DATE

DESCRIPTIONECN

PRODUCTION

RELEASED TO

Page 43

TIMER CHART

Figure 13 — MD-18 Timer Assembly

Page 44

Moyer Diebel MD18, MD18-2 Technical Manual

Specifications and Main Features

Frequently Asked Questions

User Manual