This parts lists contains part numbers for the service parts available for the MDT and MDT4. They have been manufactured in both 60 Hz and 50 Hz models. The 60 Hz models are: MDTF-A or MDTFA-H MDT4F-A or MDT4FA-H The 50 Hz models are: MDTF-6A or MDTFA-6H MDT4F-6A or MDT4FA-6H Always check the model number of the ice machine being serviced to be certain that the parts ordered will be correct. MDT and MDT4 Service Parts The service parts for the evaporator changed in April of 00. A contactor was added in early 0, the first unit with one was MDT4FA-H serial number 00066. Table of Contents Cabinet Page Condensing Components Page Evaporator, Auger, Bearings & Water Seal Page 4 Water And Drain System Page 5 Bin Cover, Dispenser Motor, Electric Eyes Page 6 Prior Gear Reducer and Motor - A77 type Page 7 Gear Reducer 0-4- or 0-4-4 or 0-48- Page 8 Control Box Page MDT4 60 Hz Wiring Diagram (w/out contactor) Page 0 MDT Wiring Diagram (w/out contactor) Page Schematic Diagram (all w/out contactor) Page MDT4 50 Hz Wiring Diagram (w/out contactor) Page MDT or MDT4 Wiring Diagram with Contactor (change in early 0) Page 4 MDT or MDT4 Schematic Diagram with Contactor Page 5 January 0 Page
Cabinet 7 8 4 4 5 A7767-00 Cabinet top, S.S. A778-00 Right side panel, SS 0-68-0 Screw 4 0-4-7 Screw 5 5-080-0 Emblem, Scotsman 6 5-080-0 Emblem, Touch-Free 7-77-00 Switch 8 0-40-5 Screw 0-406-04 Nut 0 0-44-0 Spout 0-407-0 Washer 0-40- Screw 0-0-0 Grill 4 0-48-0 Machine screw 5-0674-07 Tube, order units. 6 0-40- Sink - grey 7 A5875-05 Bracket 8 0-84-0 Hose clamp -55-0 Touch free sensor 0 7-80-0 Decal 5 8 August 008 Page 4 6 0 6 7 0 --0 Lock, Gov t units only -50-0 Touch Free disable switch 0-804-0 Screw receptacle 4 A7766-0 Front panel, incl # 5,6, A7766-00 Front panel, Gov t units 5 A7784-00 Left side panel, SS 6 0-878- Splash panel - grey 7 A7875-00 Back panel 8 A787-00 Support bracket 0-44-0 Clear spout, replaced item 0 in May 00 0 A6547-00 Mounting plate for spout -0566-0 Bottom gasket - complete 7-8-0 Water decal 8 7 6 5 0
Condensing Components MDT4F 8-874- 60 Hz compressor 8-874-6 50 Hz compressor 8-874-7 Overload for 60 Hz 8-874- Overload for 50 Hz 8-874-8 60 Hz relay 8-874- 50 hz relay 8-874- Start capacitor for 60 Hz 8-874-4 Start capacitor for 50 Hz 4 8-884-0 60 Hz fan motor 8-700-0 50 Hz fan motor 5 8-8858-0 Fan blade for 60 Hz 8-874-0 Fan blade for 50 hz 6 A78-00 Fan shroud for 60 Hz A604-00 Fan shroud for 50 Hz 7 0-405-40 Screw 7a 0-407-0 Washer 7b 8-4700-8 Grommet 8 8-008-4 Sleeve 6-08- Access valve a 6-08-0 Core cap b 6-08-0 Stem cap 7 0 8-04-00 Fan motor bracket 7a 8-8846-0 Condenser 0--0 Drier 7b 8 MDTF 8-885- 60 Hz compressor 8-885-6 50 Hz compressor 8-885-7 Overload for 60 Hz 8-885- Overload for 50 Hz 8-885-8 60 Hz relay 8-885- 50 hz relay not used 4-68- 60 Hz fan motor -68-04 50 Hz fan motor 5 8-885-0 Fan blade 6 A78-00 Fan shroud a a b a a Access Valve Change - November 007 a 6-40-0 Cap a 6--0 Core a 6-8-0 Seat for /4" tube 5 4 0 6 November 007 Page
Evaporator, Auger, Bearings & Water Seal ITEM PART NUMBER NUMBER DESCRIPTION 0-4404-0 Threaded cap - grey 0-0758-00 Screw 0-455-0 Top bearing, w/thrust washer - for updated units* 4 0-4575- Breaker kit, includes items,, 4a, 4b, 7 & 7a* 4a -067-6 O-Ring (inside) 4b -067-7 O-Ring, outside of breaker 4, 4a, 4b 5 use item 6 Auger 6 A608-00 Evaporator 8 7 0-47-07 Washer 7a 0-40-46 Screw 7, 7a 8 0-45- Water Seal 0-047- Lower Bearing 6 0 0-505-00 Gasket 08-055-0 Adapter 0-405-8 Cap Screw () 0-40-0 Cap screw 4 0-40-04 Washer () 8 5 A5-00 Spline Coupling 6 0-4578-0 Auger and bearing kit Includes items,, 4, 4a, 4b, 5, 7, 7a, 8, and 7-066-0 Top bearing grease, oz tube 8-08-0 Insulation for spout Note: Use about oz per bearing. Lightly coat 0 bearing surfaces, throughly grease thrust portion of bearing (horizontal needles). 5 5 * Updated units use listed auger and top breaker and bearing. Update availability began Feb. 00. Updated units and later production units have grey cap to indicate use of this type of top bearing and auger. Non-updated units or units with white or brass cap require auger kit item 6 when replacing top bearing or auger. Production with listed bearing and auger began in April 00 and have a grey cap. Prior top bearing and auger are no longer available. Note: When assembling a breaker to an auger, add a small amount of food grade grease (-056-0) to the o-ring inside the breaker. 4 May 0 Page 4
Water And Drain System A78-00 Vane Assembly A87-00 Bin Bottom Assy 0-0-0 Hub Assembly 4 0-40- Fiber Washer 5 A68-00 Storage Bin 6-085-0 Inlet water line requires 6" 7 0-4-00 Pal Nut 8-44-04 Water valve a (60 Hz) -44-05 Water valve (50 Hz) 6-086-0 Barbed adapter 0 0-400-0 Preformed tube A0-0 Water sensor 0 0-40- Sink 0-0-0 Grill for sink 4-0674-07 Tube, requires " 4 5 0-84-0 Clamps 6-0674-0 Tube, overflow to drain, requires " 8 6a Bin drain, 6b Drain, 7 0-84-08 Clamp 8 0-84-07 Clamp 0-7-0 Reservoir Assy 0 A640-00 Reservoir Bracket 6b 0-7-0 Float and arm a 0-66-0 Plunger/seat 0-40- Washer 0-645-0 Hex Cap Screw 4-0674-06 Tube (to evap.) 5 A4-000 Inlet fitting 6 6-55-0 NPT to tube fitting 7 6-087-0 Brass insert 4 8 6-0670-0 Tee Note: Item 6 connects to item 6 by /4" comp nut and ferrule. 7 6 8 5 5 6a 4 7 5 5 6 8 6 7 0 6 Water Valve Connection Detail 5 June 04 Page 5
Bin Cover, Dispenser Motor, Electric Eyes 0-40-5 Screw 0-5-0 Screw A5474-00 Motor Mtg. Bracket 4 0-8-0 Bushing 5 0-077-0 Thumbscrew 6-0866-0 Grommet 7 A770-0 Electric eye set 8 0-7-0 Bin top 0--0 Nut 0 0-4-0 Shaft -60-0 Motor & gears 60 Hz -60-06 Motor & gears 50 Hz 0-80-0 Strap A548-0 Complete assembly 60 Hz (except items 5 and 7) A548-06 Complete assembly 50 Hz (except items 5 and 7) March 00 Page 6
Prior Gear Reducer and Motor - A77 type. -05-0 Switch. none, part of item 0. A744-00 Centrifugal Sw. Kit 4. 0-40-77 Screw 5. A057-00 Shaft and Actuator 6. 0-408-6 Washer 7. 0-50-00 Grease seal 8. 0-408- Washer. 0-408-04 Washer 8 0. 0-445-0 Output shaft. 0-55-0 Retaining ring. 0-60-0 Woodruff Key. 0-444-0 Output gear 7 4. 0-505-00 O-ring 5. 0-0774- Roll pin 6. A866-00 Gear Case 6 7. 0-408- Washer 8. 0-408-40 Washer shim 5. 0-4-0 nd gear & third pinion 0. 0-408-4 Washer 4. 0-408-8 Washer. 0-48-0 st gear & nd pinion. A865-0 Gear box cover 4. 0-6-0 Grease seal 5. 0-50-00 Bearing 6. 0-408-08 Washer 7. A7707-0 60 Hz motor kit* 8. A850-00 50 Hz motor kit* 0. A868-00 Fan 0. A8487-00 Motor Housing with bearing. A7-07 Oil. 0-4- Complete 60 Hz Gear Motor 0-4-4 Complete 50 Hz Gear Motor 0-48- Gear reducer kit, no motor. A45-00 Spacer 4 0-408-0 Washer 5 0-405-45 Screw 6. -06-00 Grommet * motor kit includes items 5, 6, and 0. 0 7 6 6 5 7 8 8 7 4 5 4 5 4 8 8 0 MOUNTING DETAIL January 00 Page 7
Gear Reducer 0-4- or 0-4-4 or 0-48- ITEM PART NUMBER NUMBER DESCRIPTION. -05-0 Switch. A744-00 Centrifugal Sw. Kit. 0-40-77 Screw 4. A057-00 Shaft and Actuator 5. part of item 6. 0-408-6 Washer 7. 0-50-00 Grease seal 8. -047-0 Gasket. 0-408- Washer 8 0. 0-408-40 Washer shim. 0-4-0 nd gear and third pinion. 0-408-4 Washer. 0-408-8 Washer 4. 0-48-0 st gear & second pinion 5. 0-6-0 Grease seal 6. 0-50-00 Bearing 7. 0-408-08 Washer 8. A7707-0 60 Hz motor kit* A850-00 50 Hz motor kit*. A868-00 Fan 0. A8487-00 Motor Housing w/ bearing. A7-07 Oil. 0-4- Complete 60 Hz Gear Motor Assembly with motor 0-4-4 Complete 50 Hz Gear Motor Assembly with motor 0-48- Gear reducer kit, no motor. 4 A45-00 0-408-0 Spacer Washer 5 0-405-45 Screw 4 6. -06-00 Grommet 7. -04-0 Water shed 0 7 6 5 0 7 6 4 7 5 * motor kit includes items 6, 7,, 0 Note: Wire termination on replacement motor varies from original equipment. Included with item 8 6 5 4 MOUNTING DETAIL January 0 Page 8
Control Box 4 --0 Snap bushing -4-0 Stand off -84- Circuit board for 5/60/ -84-6 Circuit board for 0/50/ 4* -46-0 Contactor, 5/60/ -46-0 Contactor, for 50 Hz model Not shown: 5-04-0 Wire harness for 60 Hz model w/contactor -04-0 Wire harness for 50 Hz model w/contactor * Contactor added after MDT4FA-H 00066. January 0 Page
MDT4 60 Hz Wiring Diagram (w/out contactor) March 00 Page 0
MDT Wiring Diagram (w/out contactor) March 00 Page
Schematic Diagram (all w/out contactor) Controls shown in the ice making mode with all dispensing systems in operation. March 00 Page
MDT4 50 Hz Wiring Diagram (w/out contactor) March 00 Page
MDT or MDT4 Wiring Diagram with Contactor (change in early 0) 7-4-0 COMPRESSOR MOTOR COMPRESSOR TERMINAL BOX BN KEY LOCK SWITCH (WHEN REQ D) BN MOTOR MTG. BRACKET = WIRE NUT S C R S DISPENSER MOT M RELAY START CAPACITOR (MDT4 ONLY) BN SOLENOID WATER BN O O FAN MOT PIN # PIN #6 PIN # PIN #4 PIN #5 PIN # PIN # PIN # V V CENTRIFUGAL SWITCH MOT FREEZER PIN #5 PIN #4 PIN #0 PIN # GN TOGGLE SWITCH WATER T L CONTACTOR T L L N TERM BOARD JUNCTION BOX POWER SUPPLY SEE NAMEPLATE FOR PROPER VOLTAGE REQUIREMENTS AND MAXIMUM FUSE SIZE TX ICE RX ICE WATER SENSOR NTC COM R USE COPPER CONDUCTORS ONLY THIS UNIT MUST BE GROUNDED DASHED LINES INDICATE FIELD WIRING WHICH MUST BE INSTALLED IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE AND ALL STATE AND LOCAL CODES WIRE COLOR FOR 5/60/: WHITE WIRE COLOR FOR 0/50/: BLACK RX BIN TX BIN NO RX/TX DISABLE SWITCH January 0 Page 4
MDT or MDT4 Schematic Diagram with Contactor L CONTROLS SHOWN IN THE ICE MAKING MODE WITH ALL DISPENSING SYSTEMS IN OPERATON POWER SUPPLY L COMP MOT CENT SWITCH CONTACTOR RX RECIEVER TX TRANSMITTER RX RECIEVER TX TRANSMITTER NTC TRANSISTOR PRINTED CIRCUIT ASSEMBLY RX DISABLE AUGER RELAY AUGER MOT COMP RELAY CONTACTOR COIL FAN MOT KEY LOCK SWITCH (WHEN REQ D.) WATER SWITCH WATER SOL DISPENSING MOT January 0 Page 5