Moyer Diebel MH-60M2 Technical Manual Download Page 31

BASIC SERVICE

29

ELECTRICAL SERVICE (Cont.)

Timers

MH-60, MH-6N, and MH-6L models have two timers
located in the control cabinet.

These timers are not adjustable.
The timer chart is shown in Fig. 17.

Cycle Timer —

Refer to Fig. 16.
The cycle timer controls the dishwasher’s 60-second
operation. The timer consists of a timer motor, four
micro-switches, and four non-adjustable metal cams.
Cam A controls power to the timer motor
Cam B controls power to the wash motor.
Cam C controls power to the final rinse valve.
Cam D controls the dishwasher instant start.

Fill Timer —

Refer to Fig. 18.
The fill timer controls the dishwasher’s 90-second fill operation.
The timer consists of a timer motor, one micro-switch, and one
non-adjustable plastic cam. The fill timer operates during initial fill.

Figure 16

Cycle Timer

B

A

C

D

WASH 45-SEC.

RINSE 14-SEC.

TIMER CYCLE 60-SEC.

NO

TRC

NC

1

NO
NC

TRB

NC

NO

TRA

8

SECOND

0

10

5

20

15

25

35

30

40

50

45

55

60

45

47

DWELL 1-SEC.

CAM
TIMER
CAM

WASH
CAM

RINSE
CAM

INSTANT
START

TRD NO

NC

INSTANT START 45-SEC.

8

53

3

TIMER 
SWITCH 
DETAIL

N
C

N
O

COM.

1

2

A

B

C

D

Figure 17

Cycle Timer Chart

Figure 18

Fill Timer

FILL TIME 90-SEC.

FILL TIMER

Summary of Contents for MH-60M2

Page 1: ...el MH 60M2 High Temperature with Built in Booster MH 6NM2 High Temperature MH 6LM2 Low Temperature Machine Serial No October 1996 Technical Manual Door Type Dishwasher Manual P N 0509506 2674 N Servic...

Page 2: ...ence Model Number Serial Number Voltage and Phase Moyer Diebel Parts Distributor Phone if applicable Moyer Diebel Service Agency Phone Moyer Diebel Service Moyer Diebel US Phone 1 336 661 1992 1 800 2...

Page 3: ...Revision History REVISONS 1 Revision Revised Serial Number Comments Date Pages Effectivity 10 16 96 All 14165 Issue of manual and replacement parts lists...

Page 4: ...ERATION SUMMARY 22 CLEANING 23 Cleaning Schedule 23 Deliming Process 24 TROUBLESHOOTING 25 BASIC SERVICE 27 REPLACEMENT PARTS 33 ELECTRICAL SCHEMATICS 62 TIMER CHART 64 LIST OF FIGURES Figure 1 Remove...

Page 5: ...Figure 22 Door Assemblies and Panels 34 Figure 23 Door Safety Switch and Instrument Panel 36 Figure 24 Door Handle Assembly and Springs 38 Figure 25 Track Assembly 40 Figure 26 MH 60 Fill Piping Asse...

Page 6: ...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...

Page 7: ...All information illustrations and specifications contained in this manual are based upon the latest product information available at the time of publication Moyer Diebel constantly improves its produ...

Page 8: ...Field convertible to corner model Electric tank heat Balanced three door lift system Low water tank heat protection 1 hp drip proof pump motor Door safety switch Options MH 60 only Electric booster 7...

Page 9: ...Amps MH 60 220 60 1 40 F 23 C 61 Amps 76 Amps MH 60 230 60 1 40 F 23 C 63 Amps 79 Amps MH 60 240 60 1 40 F 23 C 65 Amps 81 Amps MH 60 208 60 3 40 F 23 C 33 Amps 41 Amps MH 60 220 60 3 40 F 23 C 35 Amp...

Page 10: ...he dishwasher from the skid Move the machine to its permanent location NOTE Refer to To change from Straight through Operation to Corner Operation on the next page if your machine will be placed for c...

Page 11: ...re spacers 2 Move front rack guide A to the right side of the rack tracks See Fig 3b Use existing hardware 3 Unbolt the track B and rack support rod C 4 Remove and save the two remaining fasteners fro...

Page 12: ...circuit 1 A qualified electrician must compare the electrical power supply with the machine electrical specifications before connecting to the incoming service through a fused disconnect switch Refer...

Page 13: ...to disengage the post from the machine base Swing the hinged control panel forward Refer to Fig 6 4 Three phase or single phase incoming power wiring connections are made at the bottom of the machine...

Page 14: ...ashers is 3 4 NPT The connection is made from underneath the dishwasher The following minimum water temperatures are recommended MH 60 with built in 40 rise electric booster Minimum 140 F 60 C Min Max...

Page 15: ...PRV is not standard equipment on Models MH 6N MH 6L Figure 9 Drain Hose Connection 1 1 2 O D Drain Connections Refer to Fig 9 1 MH series models are GRAVITY DRAIN machines equipped with a 1 1 2 O D h...

Page 16: ...n the left side of the hinged control panel Refer to Fig 11 3 The detergent signal is limited to a maximum load of 1 Amp Signal voltage is 230VAC 4 The Rinse aid Sanitizer signal is limited to a max i...

Page 17: ...the final rinse manifold Models MH 60 and MH 6N do not require sanitizer 9 Use a sodium hypochlorite Chlorine based sanitizer at a minimum concentration of 50PPM in the final rinse 10 Use chlorine te...

Page 18: ...h B Power indicator Light C In cycle light D Extended wash switch E Final rinse pressure gauge F Wash water temperature gauge Complete the installation After plumbing and electrical connections are ma...

Page 19: ...F 66 C for MH 60 MH 6N The MH 6L requires a minimum of 120 F 49 C However a minimum of 140 F 60 C is optimum for the MH 6L Prescrap the dishes Load ware into the dishrack Open the doors insert the rac...

Page 20: ...doors anytime during the cycle will stop the dishwasher Closing the doors will resume the automatic cycle where it left off The cycle times are listed below Wash 45 seconds Dwell 1 seconds Final rinse...

Page 21: ...for MH 60 MH 6N is 180 195 F 82 91 C The MH 6L requires a minimum final rinse temperature of 120 F 49 C However a minimum final rinse temperature of 140 F 60 C is optimum for the MH 6L Check Final Ri...

Page 22: ...l remain in a continuous wash mode until the switch is flipped down Drain the dishwasher Make sure the dishwasher power switch is turned off Drain the dishwasher by pulling the handle of the drain ove...

Page 23: ...crap screens and check the drain located in the bottom of the dishwasher wash tank Make sure that the building drain handles the water flow exiting the dishwasher Clean the interior of the wash tank o...

Page 24: ...ower indicator light illuminates The wash tank heater and the booster tank heater begin to heat 2 The wash water temperature gauge should indicate a minimum of 150 F 66 C for MH 60 MH 6N and 120 F 60...

Page 25: ...ard water or multiple shift operations CLEANING SCHEDULE Every 2 Hours or After Each Meal Period 1 Drain the dishwasher 2 Flush interior with fresh water 3 Clean scrap screens and pump intake screen 4...

Page 26: ...ove all dishes from machine 2 Remove any chemical pick up tubes from their containers 3 Place each tube in a container of fresh water and prime the chemical lines for several minutes to thoroughly flu...

Page 27: ...o the off position Low or no water Main water supply is turned off Turn on house water supply Drain overflow assembly is not Place and seat drain overflow in place and seated Machine doors not fully c...

Page 28: ...ncoming water Check the booster MH60 MH6N temperature temperature be sure the thermostat is set to maintain180 F 82 C temperature MH6L check incoming water is set Min 120 F 49 C 140 F 60 C Check valve...

Page 29: ...is shipped Schematics are included at the back of this manual as well Be aware that these schemat ics include options that may not apply to your machine Options are enclosed in dashed lines with the w...

Page 30: ...cts 220VAC power to the motor contactor coil Refer to Fig 15 Note the Switch Lever on the Overload If the switch lever is off with the 0 showing then the overload has tripped To Reset the Motor Overlo...

Page 31: ...to the final rinse valve Cam D controls the dishwasher instant start Fill Timer Refer to Fig 18 The fill timer controls the dishwasher s 90 second fill operation The timer consists of a timer motor o...

Page 32: ...1L2 1L3 1L1 1L2 1L3 1L1 1L2 1L1 1L2 1L3 1L1 1L2 1L3 1L1 1L2 1L3 Configuration A Booster tank element View of calrod coils Configuration B Booster tank element View of calrod coils Configuration C Boos...

Page 33: ...ain electrical connection block For single phase machines motor rotation is changed at the motor connection plate on the rear of the single phase motor If necessary Refer to Fig 20 for the proper wiri...

Page 34: ...emove the old seal and discard 13 Check seal seat in the pump flange and clean thoroughly 14 Press rubber seal ceramic portion of seal assembly into the pump flange Use a water soluble lubricant Be ca...

Page 35: ...33 REPLACEMENT PARTS REPLACEMENT PARTS...

Page 36: ...34 REPLACEMENT PARTS 6 6 25 15 16 17 18 4 13 13 12 7 8 9 6 9 9 10 9 5 5 2 2 8 1 4 3 11 11 14 3 4 1 2 2 19 13 13 23 23 23 24 24 23 22 23 20 20 21 19 Figure 22 Door Assemblies and Panels Panels...

Page 37: ...ex hd 2 9 0503722 Nut 10 32 Hex hd SST 10 10 0309277 Bracket door lift 1 11 108053 Plug cornerpost 2 12 0307328 Stop door 2 13 100779 Screw 1 4 20 X 5 8 Truss hd 10 14 0709317 Door front 1 15 108347 G...

Page 38: ...36 REPLACEMENT PARTS Figure 23 Door Safety Switch and Instrument Panel 4 8 9 10 7 6 5 11 2 3 3 1...

Page 39: ...1 2 0309451 Bracket switch 2 3 107967 Nut grip 1 4 20 with nylon insert 2 4 0501361 On Off switch 1 5 0501338 Lite red 240V 1 6 0503765 Lite amber 240V 1 7 0501361 Switch Extended Wash 1 8 109812 Gau...

Page 40: ...38 REPLACEMENT PARTS Figure 24 Door Handle Assembly and Springs 1 11 1 2 3 4 5 6 4 7 8 8 9 12 13 12 11 10 14 15 16 18 18 17 19 5 2...

Page 41: ...r 5 16 X 3 4 X 1 16 4 6 106013 Washer Lock 5 16 split 2 7 0309166 Handle door 1 8 0508864 Handle grip 2 9 304811 Plate backing 2 10 108368 Gasket backing 2 11 107436 Screw M6 X 16mm Filister 4 12 1074...

Page 42: ...40 REPLACEMENT PARTS 6 3 6 8 9 1 6 8 9 11 10 7 4 7 11 10 8 9 2 7 7 11 10 4 6 6 11 10 9 8 7 6 7 12 12 Figure 25 Track Assembly Corner configuration shown...

Page 43: ...9468 Guide 1 3 0309472 Track rear 1 4 0309470 Support rack 1 5 0309471 Track front 1 6 106727 Screw 10 32 X 5 8 Flat Hd 6 7 107966 Nut grip 10 32 w nylon insert 6 8 100779 Bolt 1 4 20 X 5 8 Truss Hd 8...

Page 44: ...42 REPLACEMENT PARTS Figure 26 MH 60 Fill Piping Assembly 19 20 22 21 13 14 15 3 16 5 17 5 18 1 2 4 5 6 7 8 9 10 11 12 8 24 5 1 26 2 25 2 9 7 1 2 23 19 22 27 29 28 Model MH 60...

Page 45: ...79 Fitting bulkhead 1 2 NPT Nickel plated 1 14 0309350 Washer 1 15 102567 Nipple 1 2 X 3 1 16 100599 Cross 3 4 Brass 1 17 107424 Plug 1 8 1 18 104682 Thermometer final rinse 2 stem 1 19 107065 Connect...

Page 46: ...44 REPLACEMENT PARTS Model MH 6N and MH 6L Figure 27 MH 6N MH 6L Fill Piping Assembly 19 20 22 21 13 14 15 3 16 5 17 5 18 1 2 4 5 6 7 8 9 10 11 12 23 28 19 17 24 2 25 2 26 5 27 29 2 7 8 9...

Page 47: ...bulkhead 1 2 NPT Nickel plated 1 14 0309350 Washer 1 15 102567 Nipple 1 2 X 3 1 16 0309529 Cross modified 3 4 Brass 1 17 107424 Plug 1 8 2 18 104682 Thermometer final rinse 2 stem 1 19 107065 Connecto...

Page 48: ...46 REPLACEMENT PARTS Figure 28 Wash Rinse Spray Arm Assembly 1 2 3 2 4 5 6 3 8 7 10 9 9...

Page 49: ...rm MH 60 MH 6N Only 12 3 112164 Bearing rinse arm 4 4 0707453 Rinse arm assy includes Items 2 3 MH 60 MH 6N Only 2 5 0507444 Nut rinse arm 2 6 0501563 Screw 8 X 1 2 Pan hd 4 7 0707452 S Wash arm assy...

Page 50: ...48 REPLACEMENT PARTS Figure 29 MH 60 MH 6N MH 6L Wash Rinse Spray Piping Assembly 1 2 5 7 12 11 8 14 13 14 13 11 12 8 5 6 17 16 18 9 15 9 10 6 3 4...

Page 51: ...509179 Fitting bulkhead 1 2 NPT Nickle Plated 1 8 0507445 Spindle wash arm 2 9 109864 Support wash arm 2 10 109781 Standpipe wash 1 11 100736 Bolt 1 4 20 X 3 4 Hex hd 2 12 107967 Nut grip 1 4 20 2 13...

Page 52: ...50 REPLACEMENT PARTS Figure 30 Scrap Screens and Drain Assembly 1 2 3 4 3 5 6 5 7 8 9...

Page 53: ...No 1 0709196 Assembly drain overflow 1 2 0509198 Stopper drain overflow assembly 1 3 305164 Screen scrap 2 4 0309192 Cover drain 1 5 0302565 Assembly drain 1 6 107966 Nut grip 10 32 with nylon insert...

Page 54: ...52 REPLACEMENT PARTS Figure 31 Pump Assembly 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 2 1 3...

Page 55: ...Backing plate machine 1 15 100754 Screw 10 32 X 1 2 Flat hd 4 16 110270 Washer countersunk 4 17 109649 Back housing pump 1 18 111111 Seal pump 1 19 111143 Impeller 1 20 110458 O ring 1 21 110248 Wash...

Page 56: ...54 REPLACEMENT PARTS Figure 32 Wash Tank Heater and Thermostats 1 6 7 8 15 14 3 4 2 4 12 13 10 11 9 5 1...

Page 57: ...k 1 2 Nickel plate 2 5 108345 Gasket wash tank heater element 1 6 100739 Bolt 5 16 18 X 3 4 Hex hd 4 7 106013 Washer lock 5 16 split 4 8 100154 Nut plain 5 16 18 4 9 201041 Washer 7 8 X 1 3 16 X 1 8 2...

Page 58: ...56 REPLACEMENT PARTS Figure 33 MH 60 Only Electric Booster Assembly 1 2 3 4 5 6 7 8 9 10 11 12 13 14 17 16 15 18 19 20 21 22...

Page 59: ...hd 2 11 106482 Washer lock 1 4 split 3 12 100003 Nut plain 1 4 20 SST 3 13 111233 Heater booster 9 KW 208 240V 40 rise 1 3 PH 1 14 108579 Heater booster 9 KW 480V 40 rise 3PH 1 15 111266 Heater boost...

Page 60: ...58 REPLACEMENT PARTS Figure 34 Control Cabinet 14 15 1 1 2 2 1 1 3 5 4 6 6 7 8 9 16 15 14 18 17 10 13 11 12 19 20 1 21...

Page 61: ...1 8 112270 Relay control 220V coil 2 9 0509437 Terminal block 1 10 111467 Timer fill assembly 1 11 0709368 Assembly timer includes Items 6 8 1 12 0509175 Motor timer 1 13 0501379 Switch timer 4 14 05...

Page 62: ...60 REPLACEMENT PARTS Figure 35 Dishracks 1 2...

Page 63: ...61 REPLACEMENT PARTS DISHRACKS Fig 35 Part Part Description Qty Item No No 1 101273 Rack Flat Bottom 1 2 101285 Rack Peg 1...

Page 64: ...ION FOR 208V 230V 3 PHASE MH 60 Only DELTA CONNECTION FOR 208V 230V 3 PHASE BC1 9KW BOOSTER HEAT 3KW TANK HEAT HC1 3KW 9KW CONTACTOR OVERLOAD MOTOR MOTOR WASH MOTOR 8 15 2 14 13 2 30 31 12 7 18 7 19 1...

Page 65: ...EXTENDED SWITCH R2A NO TIMER R3A R2B DOOR NC NO TMR MTR MAIN POWER SWITCH LAMP POWER ON OFF A0509520 A FOR 208V 230V 1 PHASE MH 60 Only FOR 208V 230V 1 PHASE BC1 9KW BOOSTER HEAT 3KW TANK HEAT HC1 3KW...

Page 66: ...1 NO NC TRB NC NO TRA 8 SECOND 0 10 5 20 15 25 35 30 40 50 45 55 60 45 47 DWELL 1 SEC CAM TIMER CAM WASH CAM RINSE CAM INSTANT START TRD NO NC INSTANT START 45 SEC 8 53 3 TIMER SWITCH DETAIL N C N O...

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