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Champion USN-72 Technical Manual

High temperature two tank rack conveyor dishwasher with mran 90
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February, 2007

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  • Page 1 February, 2007...
  • Page 2 U. S. Navy POC – Ken Height, San Diego kheight@thesource2000.com U. S. Navy POC – Tony Cox, Jacksonville FL tcox@thesource2000.com Please call for your Authorized- NSU Warranty Start up today! Machine Data Plate with Model & Serial Number located on left front...
  • Page 3 TECHNICAL PUBLICATION SHEET TECHNICAL PUBLICATION SHEET...
  • Page 4 TECHNICAL MANUAL VALIDATION CERTIFICATE TECHNICAL MANUAL VALIDATION CERTIFICATE...
  • Page 5 APPROVAL AND PROCUREMENT RECORD APPROVAL AND PROCUREMENT RECORD...
  • Page 6 TECHNICAL MANUAL DEFICIENCY/EVALUATION REPORT (TMDER) TECHNICAL MANUAL DEFICIENCY/EVALUATION REPORT (TMDER) (Form - NAVSEA 9086/10, REV. 6/85)

  • Page 7: Revision Record

    Replaced part number 112708 with part part numbers 900840 and 113509. 1/20/03 Front Cover Added APL numbers. 1/21/03 10,11 Corrected connection points from 3/4" to 1/2" on hot water supply lines to dishwasher connections. 1/23/03 Added prime switches to drawing and control functions.
  • Page 8 76b, 77b J1872 Inserted new pages for terminal block and strip drawing and parts. 11/06/03 82a, 83a J1872 Inserted new pages for wash and rinse tank junction boxes drawings and parts. 11/06/03 J1872 Inserted new schematics and intercon- nection drawings. 10/13/04...
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  • Page 10: Safety Summary

    • The following general safety rules must be observed in addition to the specific cautions and warnings presented in this manual. • Your Champion dishwasher is a heated machine using very hot water to clean and sanitize a variety of wares. Machine surfaces and wares become hot during and immediately following normal operations.
  • Page 11 Warning Statements Pg. 8- The installation of this unit must conform to local codes or, in the absence of local codes, to the National Electrical Code and all National Codes governing plumbing, sanitation, safety and good trade practices.
  • Page 12 Pg. 40- When repairing a circuit, disconnect the power at the main service disconnect switch and place a red tag at the disconnect switch to indicate that work is being performed on the circuit.
  • Page 13 Pg. 34- Only qualified service personnel should perform preventive maintenance on the dishwasher. Pg. 36- Only qualified service personnel should perform preventive maintenance on the dishwasher. Pg. 40- Only qualified service personnel should perform adjustments and repairs to the dishwasher.

  • Page 14: Limited Warranty

    "Champion" and installed within the United States and Canada to be free from defects in material and workman- ship for a period of one (1) year after the date of installation or fifteen (15) months after the date of shipment by Champion, whichever occurs first.

  • Page 15: Table Of Contents

    Unpack the Dishwasher ..................Disassembly ......................Reassembly ......................Permanent Placement ................... Connections between the dishwasher and booster ..........Water Connections ....................Steam and Condensate Connections (Steam heat only) ........Drain Connections ....................Ventilation Connections ..................2.10 Electrical Connections ..................2.11 Electrical Tank Heat Connections (Electric heat only) ........
  • Page 16 5.3.15 Rinse Saver Assembly Repair .............. 5.3.16 Conveyor Chain Take-up Assembly Adjustment ......... 5.3.17 Take-up Bearing Replacement ............. 5.3.18 Drive Shaft Bearing and Seal Replacement ......... 5.3.19 Door Safety Switch Replacement ............5.3.20 Control Circuit Explanation ..............5.3.21 Control Cabinet Fuse Replacement .............
  • Page 17 Steam Coil Assembly ................. Figure 6.9a — Electric Tank Heat (For machines with S/N J1050 to JXXXX) ....Figure 6.9b — Electric Tank Heat (For Machines beginning with S/N JXXXX and above) 76b Figure 6.10 – Tank Steam Piping with Booster ..............
  • Page 18 Figure 6.17 – Steam Remote Control Cabinet (Prior to S/N J1050) ........ Figure 6.17a — Electric Remote Control Cabinet (For S/N J1050 and above) ....Figure 6.17b— Steam or Electric Control Cabinet (For S/N J1080 and above) ....Figure 6.18 –...

  • Page 19: Part 1: General Specifications

    All information, illustrations and specifications contained in this manual are based upon the latest product information available at the time of publication. Champion constantly improves its products and reserves the right to make changes at any time or to change specifications or design without notice and without incurring any obligation.

  • Page 20: Standard Equipment, Options And Accessories

    External electric booster heater 40 or 70 rise (specified at time of order) (stainless steel, completely interplumbed and interwired) Right to left or left to right conveyor operation (specified at time of order) Choice of conveyor speed (250, 185, 135, 85, or 60 racks per hour)

  • Page 21: Dimensions, Capacities, Ventilation, And Utilities

    Drain: 1-1/2" NPT drain connection @ 15 gal/min maximum flow rate. Electric: 440/60/3 Steam: 1-1/2" NPT steam connection (for machine and booster) @ 15-30 psig flow pres. Tank heat consumption 150 lbs./hr. 70 R Steam booster consumption 255 lbs./hr. Condensate: 3/4" NPT machine return to boiler (no back pressure)

  • Page 22: Electrical Power Requirements

    Operating Currents (440V/60/3 Supply) Wash motor 2.7 Amps Rinse motor 2.7 Amps Drive motor 0.4 Amps Control Circuit 1.1 Amps Each heat circuit has a separate power source. Heat Voltage Amps Power Requirement Circuit Hz/Ph (Electric) Full Load (125% Service Factor)

  • Page 23: Part 2: Installation

    Perform the following steps to unpack the dishwasher: 1. Remove protective wrap and hold-downs from the pallet. 2. Inspect for any shipping damage. If damage is found, save the packing material and contact the carrier immediately. 3. Check the interior of the dishwasher for the following items stowed inside:...

  • Page 24: Disassembly

    Part 2: INSTALLATION 2.2 Disassembly The USN-72 will require partial disassembly to move it through a standard 26" x 66" hatch. Go to Part 2.4, Permanent Placement, if disassembly is not required. Perform the following steps to disassemble the dishwasher. Refer to Fig. 2.1 below.

  • Page 25: Reassembly

    3. Apply a 1/2" bead of silicone sealant on the face of all sides of the wash tank hood gasket. 4. Move the rinse tank closer to the wash tank and check the alignment of the bolt holes at the base and around the tank hood.

  • Page 26: Permanent Placement

    Refer to Figure 2.2 on the next page. WARNING: The installation of this unit must conform to local codes or, in the absence of local codes, to the National Electrical Code and all National Codes governing plumbing, sanitation, safety and good trade practices.

  • Page 27: Figure 2.2 - Connections Between Dishwasher And Steam Booster

    Part 2: INSTALLATION Figure 2.2 Connections Between Dishwasher and Steam Booster (Right to left model shown)

  • Page 28: Water Connections

    1. Connect a 3/4" NPT hot water supply line (110 F minimum) to the water inlet valve located at the booster. (See No. 1, Fig. 2.3.) 2. Connect a 1/2" NPT hot water line (140 F minimum) to the water inlet valve located at the top of the dishwasher. (See No. 2, Fig. 2.3.) 2.7 Steam and Condensate Connections (Steam heat only)

  • Page 29: Figure 2.3 – Utility Connections

    Part 2: INSTALLATION Utility Connection Points Description 3/4" NPT hot water supply line for booster 1/2" NPT hot water supply line for dishwasher 1/2" NPT steam supply line 1/2" NPT steam condensate line 1-1/2" NPT drain line 1/2" NPT vent collar drain line...

  • Page 30: Drain Connections

    National Codes governing plumbing, sanitation, safety and good trade practices. 1. Connect an exhaust duct to the load and unload vent collar located at each end of the dishwasher. Inside dimensions of the vent collar connection are 11.13" x 3.87".

  • Page 31: Electrical Connections

    2. Refer to Figure 2.3, No. 7 and 7A (depending on serial number), on page 11. No. 7 indicates the location of the wash tank junction box for the right to left machine. The box is located on the opposite end of the dishwasher for a left to right machine.

  • Page 32: Electrical Tank Heat Connections (Electric Heat Only)

    WARNING: When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch to indicate work is being done on that circuit. 1. Connect the incoming 440V/60/3PH power supply to the heat contactor marked for the wash tank heater circuit.

  • Page 33: Figure 2.5 – Tank Heater Conduit Routing

    Part 2: INSTALLATION p i o p i o Figure 2.5 Tank Heater Conduit Routing (Right to left model shown)

  • Page 34: Chemical Connections

    (See No. 4, Fig. 2.6, page 17.) Beginning with serial number J1872, these same connection points are also located in the wash tank junction box (No. 7 A, Fig 2.6 page 11). Either connection location can be used. A yellow label indicates the connection points.

  • Page 35: Remote Control Cabinet

    Part 2: INSTALLATION POWER TERMINAL BLOCK CONTROL TRANSFORMER GROUND MACHINE ELECTRICAL CONNECTION PLATE SIGNAL ONLY 120V RINSE AID/ SANI COMMON DETERGENT 120V Figure 2.6 Remote Control Cabinet (Interior View)
  • Page 36 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 37: Part 3: Operation

    Wares continue on the conveyor system to the power rinse tank which is heated to a minimum of 160 F. The power rinse tank spray system rinses remaining soils and soapy water from the wares.

  • Page 38: Description Of Operator Controls And Indicators

    Part 3: OPERATION 3.2 Description of Operator Controls and Indicators 3.2.1 Remote Control Cabinet Refer to Figure 3.1 and Table 3.1 below for the location and function of the operator controls and indica- tors on the remote control cabinet. POWER ON...

  • Page 39: Dishwasher And Booster

    Part 3: OPERATION 3.2.2 Dishwasher and Booster Refer to Figure 3.2 below and Table 3.2, page 22 for the location and function of the dishwasher and steam booster operator controls and indicators. p i o p i o After S/N J1872...

  • Page 40: Table 3.2 – Controls And Indicators Dishwasher And Booster

    Part 3: OPERATION 3.2 Description of Operator Controls and Indicators (Cont.) CONTROL TYPE FUNCTION Inlet water Ball valve Connects incoming water supply supply valve (shown closed) for the booster. Inlet water Ball valve Connects incoming water supply for supply valve (shown open) the tank fills.

  • Page 41: Start-Up Procedure

    Be sure the short flaps of all curtains face the load end of the machine. Place long curtains at the load and unload ends of the dishwasher. Place the short curtain at the end of the wash tank in the center of the dishwasher. 7. Make sure the curtains are in place.
  • Page 42 17. Turn the main power on at the breaker panel or fused disconnect switch for the electric booster heater (if applicable). 18. Turn the power selector switch on the front of the remote control cabinet to the “ON” position. The red power-on light will illuminate.

  • Page 43: Safety And Operation Checks

    Dishwasher Condition The dishwasher is full of water, steam or electric heat energized, and dishwasher power is on. Temperature gauges indicate proper temperatures. The pumps and conveyor are running.

  • Page 44: Figure 3.3 – Conveyor Jam Switch Check

    Part 3: OPERATION Low Water Tank Heat Protection Check 1. Open the drain valve on the wash tank. 2. Pumps and conveyor stop when the water level falls below the level of the wash tank float switch. 3. Close the drain valve.
  • Page 45 Dishwasher Condition The dishwasher is full of water, steam or electric heat energized, and dishwasher power is on. Temperature gauges indicate proper temperatures. The pumps and conveyor are running.

  • Page 46: Operation Checks

    Dishwasher surfaces, dishracks and wares become hot during and immediately after washing operations. Wear protective gear per your supervisor's directions. 8. Slide the dishrack to the table system as it is ejected from the unload end of the dishwasher. Inspect the wares for cleanliness.

  • Page 47: Shutdown Procedure

    2. Turn the power selector switch on the remote control cabinet to OFF. The red power light goes out. 3. Turn the power off to the dishwasher at the main service disconnect switch or breaker. 4. Turn the power off to the electric booster (if applicable) at the main service disconnect switch or breaker.

  • Page 48: Operation Summary

    3. Check that drains are closed. 4. Turn the power on to the dishwasher at the main service disconnect switch. 5. Turn the power on to the electric booster at the main service disconnect switch (for electric booster only). 6. Open manual tank fill valves. Monitor water level gauges.

  • Page 49: Part 4: Cleaning And Maintenance

    • Lubrication schedules 4.1 Introduction Cleaning your machine is the best maintenance that you can provide. Components that are not regularly flushed and cleaned do not perform well. The following schedules are the minimum requirements necessary for the proper performance of your machine.

  • Page 50: Deliming Schedule

    Part 4: CLEANING AND MAINTENANCE 4.3 Deliming Schedules Your dishwasher should be delimed regularly depending on the mineral content of your water. Inspect the machine interior for mineral deposits and use a deliming solution for the best cleaning results. WARNING: Deliming solutions or other acids must not come in contact with household bleach (sodium hypochlorite) or any chemicals containing chlorine, iodine, bromine, or fluorine.

  • Page 51: Preventive Maintenance Schedules

    Refer to Part 3.4, Safety and Operation Checks on page 22. WARNING: When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch to indicate work is being done on that circuit. 4. Turn the power selector switch to OFF at the remote control cabinet.
  • Page 52 4. Disassemble the water and steam inlet line strainers and clean as necessary. WARNING: When working on the dishwasher, disconnect the electric service and place a red tag at the disconnect switch to indicate work is being done on that circuit.

  • Page 53: Lubrication Schedules

    2. NEVER LUBRICATE the drive shaft bearings (B) located inside the dishwasher on each side of the conveyor drive shaft. The grease fittings on the top of each bearing serve to keep out water. 3. NEVER LUBRICATE the idle shaft bearings (B) located inside the dishwasher on each side of the conveyor take-up assembly.

  • Page 54: Figure 4.2 – Conveyor Gearbox And Drive Chain Lubrication

    1. Turn the power selector switch to OFF at the dishwasher remote control cabinet. 2. Remove the side panel protecting the drive chain located at the unload end of the dishwasher. 3. Apply a thin coat of oil (Browning GL32LT or comparable) to the drive chain (A).

  • Page 55: Part 5: Basic Service

    Champion places an electrical schematic in the control cabinet of every machine before it 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 words (IF USED) next to them on the schematic.

  • Page 56: General Troubleshooting

    Part 5: BASIC SERVICE 5.2 General Troubleshooting In the event that your dishwasher does not perform as expected, refer to the troubleshooting guide below. Perform the action suggested in the solution column. Contact a qualified service technician if the solution refers to a Repair Procedure in Part 5.3.
  • Page 57 Clogged spray pipe ....... Clean spray pipe Scrap screen full of debris ....Must be kept clean and in place Low water level in tank ......Check drain valve(s) Pump motor rotation incorrect Refer to Part 3.3, Start-up Procedure, Steps 21-23, page 24 Defective pump seal ......

  • Page 58: Component Repair And Replacement

    PRV. To replace the PRV: Turn main water supply to the dishwasher off. Place a rack in the dishwasher to activate the final rinse. This will bleed any water pressure out of the line. Remove the PRV from the piping system. Reinstall using pipe sealing compound.

  • Page 59: Water Line Strainers

    There are two water line strainers on the USN-72 dishwasher. The first strainer is located on the 3/4" main water line to the booster. The second is located on the incoming water line for the tank fill. The line strainer screen may become clogged with debris. To clean the strainer screen: Turn off the main water supply valves.

  • Page 60: Float Switch Replacement

    This screen should be inspected daily and cleaned. Item 12 illustrates the drain assembly. It consists of soldered copper pipe and if defective must be replaced as a unit. Note the cleanout plug to the left of the drain valve. This plug can be removed to clean possible obstructions from the drain assembly. Item 13 shows the 1-1/2"...

  • Page 61: Tank Heat Thermostat Adjustment And Replacement

    The TSK has two applications. It may be used to immediately shut down the dishwasher in the event the final rinse water temperature falls below 180 F., or it may be used to activate a chemi- cal sanitizing system (supplied by others) which does not immediately shut down the dishwasher.

  • Page 62: Steam Solenoid Valve Repair

    To replace the final rinse or cutoff thermostat: Turn off the water and steam supplies to the booster. Place a rack in the dishwasher to operate the final rinse and bleed off any water pressure from the line. Turn power off to the dishwasher at the dishwasher control. Remove the protective cap and round cover from the thermostat body.

  • Page 63: Steam Trap Repair

    The 1" valve is controlled by the final rinse control thermostat, (See 5.3.9), which connects 120VAC to the valve coil during a call for heat. If the valve fails to operate, first check that 120VAC is supplied to the valve coil. If voltage is not present, then refer to the electrical sche- matic and troubleshoot the circuit.
  • Page 64 Mark the location of each thermostat before removal, then unscrew each thermostat from its piping. Break the unions (item 12) and remove the piping assemblies from the booster header. Remove the eight (8) bolts from each header. Remove the flow and return headers.

  • Page 65: Wash Manifold Restrictor Adjustment

    Refer to Fig. 6.14, Replacement Parts, Item 8. The illustration shows the slide restrictor mounted in the lower wash manifold of each tank. The restrictor is set at the factory but may be adjusted if necessary. The factory setting evenly balances the water pumped to the upper and lower spray pipes.

  • Page 66: Rinse Saver Assembly Repair

    4CR relay. 4CR N.C. contacts close and power is applied to the final rinse water solenoid valve. If the final rinse switch were to fail with its contacts closed, the resulting condition would be no final rinse assuming all other components operate normally.

  • Page 67: Take-Up Bearing Replacement

    (Items 12-14). With the aid of an assistant, lift the entire assembly off the lower mounting studs. Turn the assembly diagonally in the machine until one end of the shaft extends out the load end of the dishwasher. Remove the assembly from the machine. Remove the set screw from one of the chain drive gears and remove the gear.

  • Page 68: Door Safety Switch Replacement

    Part 5: BASIC SERVICE 5.3.19 Door Safety Switch Replacement Refer to Fig. 6.12, A , Part 6, Replacement Parts, for a detailed drawing of the door switch assembly. The door safety switch assembly consists of a magnet installed in each lift-out door and a magnetic reed switch mounted in an enclosure beneath the door frame.
  • Page 69 2.) THE “SW” POWER SWITCH The purpose of this device is to turn the machine on and off. In the “ON” position, the switch passes power from the circuit breaker, CB, to wire #3. With the switch “ON” the power on light, “PL”, will illuminate.
  • Page 70 Part 5: BASIC SERVICE D.) RT The device RT is the rinse tank float switch timer. This timer is a motor and clutch type device. When the rinse tank is empty relay 7CR energizes opening 7CR N.C. This removes the voltage from the clutch of the timer and begins the 5 second low water timing operation.
  • Page 71 When a fault occurs the indicator light TKL illuminates and the hold-in circuit drops out. At the beginning of the day the water in the booster is cold and the steam valve is off. If the rinse tank is filled with water and the doors are closed the valve BC1 will energize and allow steam to flow through the heat exchanger in the booster.

  • Page 72: Control Cabinet Fuse Replacement

    Each fuse block holds a 3 amp fuse. The fuses are marked 1FU and 2FU on the schematic. To replace a fuse: Turn off the power to the dishwasher at the main service disconnect switch. Flip the tab on the top of the fuse holder to open the holder.

  • Page 73: Timer Settings

    Flip the timer over to view the back and make sure the setting in the lower left corner is set to 60 for 60 Hertz. Finally, turn the timer over to view the timer dial again and set the timer dial to 5 for five seconds.
  • Page 74 Part 6: REPLACEMENT PARTS THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 75: Part 6: Replacement Parts

    All parts are available from: The Source 502 Rotary Street Hampton, VA 23661 You also can contact The Source by telephone or fax, Monday through Friday, except for holi- days, from 8 a.m. Till 5 p.m EST: Phone: (757) 825-1600 (800) 497-2144...
  • Page 76 Part 6: REPLACEMENT PARTS Figure 6.1 Vents, Curtains, Doors, Panels, Scrap screens, and Water level gauges (R-L machine shown)

  • Page 77: Figure 6.1 - Vents, Curtains, Doors, Panels, Scrap Screens, And Water Level Gauges

    (R-L MACHINE SHOWN) Fig. 6.1 Part Item No. Part Description Qty. 108250 Rod, curtain (Beginning w/S# J1921, 1 additional rod added/ 3 prior) 4 108042 Curtain, long ..................108043 Curtain, short (Beginning w/S# J1921, 1 additional curtain added/ 1 prior) 323021 Vent Assy.
  • Page 78 Part 6: REPLACEMENT PARTS Figure 6.2 - Tank fill assembly and Temperature gauges (R-L machine shown)

  • Page 79: Figure 6.2 - Tank Fill Assembly And Temperature Gauges

    Kit* Repair, 1/4" and 1/2" Vacuum Breaker (Includes one each of 108349, 113219, 113221) Kit 900836 was created to repair either style of vacuum breaker (bronze or plastic). Plastic style are no longer available for the complet vacuum breakers, must replace...
  • Page 80 Part 6: REPLACEMENT PARTS Figure 6.3 - Final rinse piping assembly (R-L machine shown)

  • Page 81: Figure 6.3 - Final Rinse Piping Assembly

    Repair kit vacuum brkr, 3/4" (Prior to S/N J1533) ......113223 Repair kit vacuum brkr, 3/4" (After S/N J1534) ........ 900837 Kit*Repair, 3/4" Vacuum Breaker (Includes one each of 108351 & 113223) 102438 Elbow Street 1/2" X 90 ..............100209 Nipple, close 1/2 NPT brass ...............
  • Page 82 112090 Overlay, final rinse 180 F ..............Kit 900837 was created to repair either style of vacuum breaker (bronze or plastic). Plastic style are no longer available for the complet vacuum breakers, must replace with the bronze style when replacing complete vacuum breaker.
  • Page 83 Part 6: REPLACEMENT PARTS THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 84 Part 6: REPLACEMENT PARTS Figure 6.4 - Track Assembly (R-L machine shown)

  • Page 85: Figure 6.4 - Track Assembly

    (LHR for R-L machine) (RHF for R-L machine) (RHR for L-R machine) (LHF for L-R machine) 322889 Bracket, rear track ................111296 Screw, undercut, 10-32 x 3/8" ............104985 Nut, hex 10-32 ..................106482 Washer, lock 1/4" ................100003 Nut, hex 1/4-20 ...................
  • Page 86 Part 6: REPLACEMENT PARTS Figure 6.5 - Conveyor shafts, chains, bearings, and guides (For machines built prior to S/N J1050)
  • Page 87 113193 Offset Link (not shown) ..............When replacing the seal in the bearing flange you must order the kit 900840 (which includes 112599 Housing, Bearing and 113509 Seal). The new style seal will not work in the old housing. Parts may be ordered individually after the initial replacement.
  • Page 88 Part 6: REPLACEMENT PARTS Figure 6.5a - Conveyor shafts, chains, bearings, and guides (For machines beginning with S/N J1050 and above)
  • Page 89 Part 6: REPLACEMENT PARTS CONVEYOR SHAFTS, CHAINS, BEARINGS, AND GUIDES (For machines beginning with S/N J1050 and above) Fig. 6.5a Part Item No. Part Description Qty. 106354 Guide, delrin ..................107245 Pin, roll 1/8" SST ................322988 Bracket, chain guide rear ..............
  • Page 90 Part 6: REPLACEMENT PARTS 13 14 Figure 6.6 - Conveyor chain take-up assembly (For machines built prior to S/N J1050)
  • Page 91 Effective 2/23/00 part number 112598 has been replaced by 900841 Kit*Bearing/ Sleeve. These bearings and sleeves will fit in housing part number 112707. If part number 112707 needs to be replaced then we suggest you use the following: 900838 Kit* bearing replacement (includes items 5 and item 6).
  • Page 92 Part 6: REPLACEMENT PARTS (For S/N J1051 and above) (For S/N J1050 Only) Figure 6.6a - Conveyor chain take-up assembly (For machines beginning with S/N J1050 and above)
  • Page 93 Screw (1/4-20 x 3/4”), hex cap ............106026 Washer, flat ..................106482 Washer, lock ..................205971 Sprocket, chain tensioner ..............113014 Bolt (3/8-16 x 1.5”), shoulder with hex socket ........325373 Shim, tensioner ................... 205969 T-nut (5/16-18) ................... 205970 Roller, chain tensioner ................ 325567...
  • Page 94 Part 6: REPLACEMENT PARTS 12 13 Figure 6.7 - Conveyor drive assembly...

  • Page 95: Figure 6.7 - Conveyor Drive Assembly

    Reducer, gear (L-R machine) ............. 113399 Reducer, gear (R-L machine) ............. 112609 Sprocket, drive ................... 108147 Key, 1/4" x 1/4" x 1 1/4" ..............322898 Guard, belt (R-L machine) ..............– Guard, belt (L-R machine) ..............101149 Link, Master #50 ................
  • Page 96 Part 6: REPLACEMENT PARTS Figure 6.8 - Rinse saver assembly...

  • Page 97: Figure 6.8 - Rinse Saver Assembly

    Magnet ....................107967 Nut, lock 1/4-20 ................322920-2 Side, rinse paddle bracket ..............322920-1 Side, rinse paddle bracket ..............106472 Screw, 1/4-20 x 1 1/4" ............... 322919 Paddle, rinse assembly ..............322891 Box, switch ..................322892 Cover, switch box ................100007 Screw, 10-32 x 3/8"...
  • Page 98 Part 6: REPLACEMENT PARTS Figure 6.9- Steam coil assembly...

  • Page 99: Figure 6.9 - Steam Coil Assembly

    Part 6: REPLACEMENT PARTS STEAM COIL ASSEMBLY Fig. 6.9 Part Item No. Part Description Qty. 323235 Coil steam (1 per tank) ............... B2850-1 Bracket, coil ..................B2850-2 Bracket, coil ..................108345 Gasket (2 per coil) ................100740 Bolt, 5/16-18 x 1" ................102376 Washer, flat 5/16"...
  • Page 100 Part 6: REPLACEMENT PARTS Figure 6.9a- Electric Tank Heat (For machines beginning with S/N J1050 and above)
  • Page 101 Part 6: REPLACEMENT PARTS ELECTRIC TANK HEAT (For machines beginning with S/N J1050 and above) Fig. 6.9a Part Item No. Part Description Qty. 317165 Cover, heater box, metal ..............106460 Screw (6-32 x 1/4”) ................317166 Heater box, metal ................
  • Page 102 Part 6: REPLACEMENT PARTS Figure 6.9b- Electric Tank Heat (For machines beginning with S/N J1872 and above)
  • Page 103 Part 6: REPLACEMENT PARTS ELECTRIC TANK HEAT (For machines beginning with S/N J1872 and above) Fig. 6.9a Part Item No. Part Description Qty. 317165 Cover, heater box, metal ..............106460 Screw (6-32 x 1/4”) ................317166 Heater box, metal ................
  • Page 104 Part 6: REPLACEMENT PARTS Figure 6.10 - Tank steam piping with booster (R-L machine shown)

  • Page 105: Figure 6.11 - Tank Steam Piping With Booster

    Steam trap, thermodynamic 1/2" SST ..........Coml Nipple, 3/4" x 2", brasss ................1 Coml Elbow reducing, 3/4" x 1/2", 90 , brass ..........1 Coml Nipple, 1/2" NPT x 4" long, brass ............1 Coml Nipple, 1/2" NPT x 19" long, brass ............1 Coml Nipple, 1/2"...
  • Page 106 Part 6: REPLACEMENT PARTS Figure 6.11 - Tank steam piping with booster (L-R machine shown)
  • Page 107 Fig. 6.11 Part Item No. Part Description Qty. Coml Nipple, 3/4" NPT x 8-1/2" long, brass ........... 1 Coml Elbow, 3/4" NPT, brass ................4 Coml Nipple, 3/4"NPT x 8-1/2" long, brass ............ 1 Coml Street ell, 3/4" NPT, brass ..............2 Coml Tee, 3/4"...
  • Page 108 Part 6: REPLACEMENT PARTS Figure 6.12 - Junction boxes, Float switches, Door switches, and Thermostats (Prior to S/N J1871)
  • Page 109 C-clip, float switch ................100094 Washer, flat. 1/2" ................104889 Putty, sealing compound 440 ............. 107589 Washer, lock, 1/2" ................104584 Nut, plain, 1/2"-13 Hex hd ..............201041 Washer, 7/8" ID x 1/8" ThK ............... 100547 Locknut, 1/2" SST ................

  • Page 110: Figure 6.12A-Junction Boxes, Float Switches, Door Switches, And Thermostats (After Jxxxx)

    Part 6: REPLACEMENT PARTS Figure 6.12a- Junction boxes, Float switches, Door switches, and Thermostats (For machines beginning with S/N J1872 and above)
  • Page 111 C-clip, float switch ................100094 Washer, flat. 1/2" ................104889 Putty, sealing compound 440 ............. 107589 Washer, lock, 1/2" ................104584 Nut, plain, 1/2"-13 Hex hd ..............201041 Washer, 7/8" ID x 1/8" ThK ............... 100547 Locknut, 1/2" SST ................
  • Page 112 Part 6: REPLACEMENT PARTS Figure 6.13 - Pump assembly...

  • Page 113: Figure 6.13 - Pump Assembly

    — 452332 Pump/Motor assy. Complete RH ............(Wash for R-L machine) (Rinse for L-R machine) — 410269 Pump assy. Complete (Includes items 7-20, 23-31) ......— 900737 Gasket kit (Includes items 16-18) ............– — 900184 Seal/Impeller kit (Includes 15-19) .............
  • Page 114 Part 6: REPLACEMENT PARTS Figure 6.14 - Wash spray system (R-L machine shown)

  • Page 115: Figure 6.14 - Wash Spray System (R-L Machine Shown)

    Fig. 6.14 Part Item No. Part Description Qty. 106482 Washer, lock, 1/4" ................100736 Bolt, 1/4-20 x 3/4" Hex hd ..............313212 Bracket, standpipe ................100073 Screw, 1/4-20 x 1/2" ................100141 Nut, grip, 1/4-20 ................. 111456 Gasket, manifold ................
  • Page 116 Part 6: REPLACEMENT PARTS Figure 6.15 - Drain and overflow assembly...

  • Page 117: Figure 6.15 - Drain And Overflow Assembly

    Adapter, 3/4" FTG, x 3/4" FPT copper ..........109072 Valve, ball 1-1/2" solder ..............113297 Adapter, 1-1/2" x FPT x 1-1/2" FTG copper ........109111 Tee reducer 1-1/2" x 3/4" x 1-1/2" copper ......... 206139 Flange, drain USN72 mod ..............
  • Page 118 Part 6: REPLACEMENT PARTS Figure 6.16 - No. 260 Steam booster and Steam piping assembly (R-L installation shown)
  • Page 119 Part Description Qty. 112309 Steam booster, #260 custom ................101249 Line strainer, 1-1/2" brass (105749 plug, 3/4" brass not shown) ......1 110005 Valve, solenoid, steam 1" NPT Asco ............110007 Repair kit steam valve, 1" NPT Asco ............110120 Coil, solenoid valve, 1"...
  • Page 120 MAIN RELAYS CONTROL TIMERS 120V 120V 120V 120V 120V 120V 4120V 120V BREAKER FUSES OVERLOADS MOTOR CONTACTORS MOTOR CIRCUIT CONTROL DRIVE WASH RINSE MRAÊ DRIVE WASH RINSE Figure 6.17 - Steam Remote Control Cabinet (For machines built prior to J1050)
  • Page 121 111617 Contact Block N.O) (Includes items 4-6) ......900847 Kit*Start Switch Assy (Includes 111614 Pushbutton Green, 111617 Contact block N.O., 112822 Nameplate)(Includes items 6,11, 12) ... 900846 Kit*Stop Switch Assy (Includes 111615 Pushbutton Red, 111616 Contact Block N.C., 112823 Nameplate)(Includes items 13-15) ..
  • Page 122 120V 120V 120V 120V 120V 120V 120V 120V FUSES CONTROL BREAKER CONTACTORS MOTOR TIMERS RINSE DRIVE WASH CIRCUIT 1MOL 2MOL 3MOL DRIVE WASH RINSE OVERLOADS MOTOR Figure 6.17a- Electric Remote Control Cabinet (For machines beginning with S/N J1050 and above)
  • Page 123 Contactor, block 3 pole 60A .............. 111625 Overload, mtr. (1.0-1.6A) MRAN 90° ..........900848 Kit* On Off Switch (Includes 112821 Nameplate, 113670 Switch, 111617 Contact Block N.O.) (Includes items 4-6) ......... 900847 Kit*Start Switch Assy (Includes 111614 Pushbutton Green, 111617 Contact Block N.O., 112822 Nameplate )(Includes items 6,11,12) ...
  • Page 124 Part 6: REPLACEMENT PARTS BOARD TERMINAL MAIN Figure 6.17b- Steam or Electric Remote Control Cabinet (For machines beginning with S/N J1080 and above)
  • Page 125 Kit*Start Switch Assy (Includes items 6, 11, 12) ......A/R 900846 Kit*Stop Switch Assy (Includes items 13-15) ........A/R 900851 Kit*Rinse Prime Button (Includes items 6, 12, 13) ......A/R 900850 Kit*light Assy Red (Includes items 9, 10, 16, 17, 39) ....... A/R...
  • Page 126 Part 6: REPLACEMENT PARTS Figure 6.18- Dishracks and PRV...
  • Page 127 Part 6: REPLACEMENT PARTS DISHRACKS AND PRV Fig. 6.18 Part Item No. Part Description Qty. 101273 Rack, flat bottom ................101285 Rack, peg .................... 107550 Valve, pressure reducing (PRV) ............
  • Page 128 Part 6: REPLACEMENT PARTS Figure 6.19- MRAN 90 Guides...

  • Page 129: Part 7: Electrical Schematics

    Part 6: REPLACEMENT PARTS MRAN 90 GUIDES Fig. 6.19 Part Part Description Item No. Qty. 100735 Bolt (1/4" x 5/8") Hex hd ..............A/R 310180 Guide, rack advance ................314640 Rack, support inner ................111370 Screw (10-32 x 5/8") Hex hd ............. 107966 Nut, grip (10-32) ................
  • Page 130 Part 6: REPLACEMENT PARTS Figure 6.20- MRAN 90 Pawl Bar...

  • Page 131: Figure 6.20 - Mran 90 Pawl Bar

    314605 Bar, pawl .................... 110240 Bolt, pawl mounting ................110236 Pawl, rack advance ................102376 Washer (5/16" x 3/4" x 1/16") ............106013 Washer, lock (5/16" split) ..............110553 Nut, 8mm SST ..................106560 Pin, cotter (1/8" x 1/-1/2") ..............

  • Page 132: Figure 6.21- Mran 90 Table And Drain Assembly

    Part 6: REPLACEMENT PARTS STUD (welded) Figure 6.21- MRAN 90 Table and Drain Assembly...
  • Page 133 Bracket, cord (Optional for roller table only) ........107865 Locknut ....................107866 Washer, packing ................. 107867 Nut, outlet pipe ................... 109283 Tailpiece, straight ................* Please note that the direction of the crank arm should be clockwise when looking down from the top of the table.
  • Page 134 Part 6: REPLACEMENT PARTS Figure 6.22- MRAN 90 Base Assembly...

  • Page 135: Figure 6.22 - Mran 90 Base Assembly

    Lever rod, limit switch ............... 107341 Switch, limit ..................100735 Bolt (1/4-20 x 5/8") Hex hd............... 106026 Washer (1/4" x 5/8" x 1/16") SST ............A/R 107967 Nut, grip (1/4-20) w/nylon insert ............A/R 100141 Nut, grip (1/4-20) SST ............... A/R 111114 Bolt ( 3/8 -16 x 3-1/2") SST ...............
  • Page 136 Part 6: REPLACEMENT PARTS Welded to bottom of item (13) Figure 6.23- MRAN 90 Drive and Motor Assembly...

  • Page 137: Figure 6.23 - Mran 90 Drive And Motor Assembly

    Key (3/16" x 3/16" x 1") ..............111066 Shaft, rack advance ................111064 Coupler, Shaft ..................100771 Screw, set (1/4-20 x 1/4") socket hd........... 104916 Key (3/16" x 3/16" x 3/4") ..............100870 Slinger, water ..................110152 Reducer ....................
  • Page 138 Part 6: REPLACEMENT PARTS Figure 6.24- CH-60 Electric Booster Piping (For USS Ramage Only)
  • Page 139 Valve, 3/4" relief ................102443 Elbow, 3/4" x 90 SST ............... 102651 Nipple, 3/4" x 2" brass ............... 102525 Tee, reducer 3/4" x 1/2" x 3/4" brass ..........107828 Gauge, Pressure temperature .............. 107550 Valve, pressure reducing 3/4" ............. 100184 Nipple, 3/4"...
  • Page 140 Part 6: REPLACEMENT PARTS Side View Front View Figure 6.25- CH-60 Electric Booster Control Cabinet (For USS Ramage Only)
  • Page 141 Part 6: REPLACEMENT PARTS CH-60 ELECTRIC BOOSTER CONTROL CABINET Fig. 6.25 Part Part Description Item No. Qty. 111833 Block, terminal 185A 3 pole .............. 180171 Block., fuse 600V, 60A ..............180175 Fuse, type J 50A ................. 112424 Block, fuse ..................112887 Fuse, ATDR 1/2A Time delay ............
  • Page 142 Part 6: REPLACEMENT P ARTS THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 143 Part 7: ELECTRICAL SCHEMA TICS Part 6: REPLACEMENT P ARTS PART 7: ELECTRICAL SCHEMATICS...
  • Page 144 CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz, USN-72 REV. DESCRIPTION DATE REV. DESCRIPTION DATE AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT STEAM ADDED LOW RINSE TEMPERATURE TIMER 21APRIL98 MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. 701541 DR.BY J.NEWTON SCALE REV.
  • Page 145 CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz, USN-72 REV. DESCRIPTION REV. DESCRIPTION DATE DATE AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT ELECTRIC MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. 701580 J.NEWTON DR.BY SCALE REV. The Dishwashing Machine Specialists...
  • Page 146 DATE DATE AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ELECTRIC ALL POWER SUPPLIED TO EACH CONNECTION POINT TANK HEAT ADDED TO MOTORS AND CONTROL CIRCUIT 6JUNE00 MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. 701697 MRA TO BE NC IN NORMAL POSITION 16OCT00 JCN DR.BY...
  • Page 147 REV. DESCRIPTION DATE DATE AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT ELECTRIC TANK HEAT ADDED TO MOTORS AND CONTROL CIRCUIT 6JUNE00 MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. 701697 DR.BY J.NEWTON SCALE MRA TO BE NC IN NORMAL POSITION 16OCT00 JCN REV.
  • Page 148 OFF DELAY FRSW FINAL RINSE VALVE FUSE-TRASNSFORMER NOTES DIAGRAM STATE 1. REMOVE JUMPER ACROSS WIRES 70 AND 9 WHEN RACK ADVANCE TABLE IS WFSW USED. POWER OFF 2. REMOVE JUMPER ACROSS N.O. 5CR DOORS CLOSED CONTACT WHEN TABLE LIMIT SWITCH IS...
  • Page 149 OFF DELAY FUSE-TRASNSFORMER FRSW (IF USED) NOTES 1. REMOVE JUMPER ACROSS WIRES 70 WFSW AND 9 WHEN RACK ADVANCE TABLE IS USED. 2. REMOVE JUMPER ACROSS N.O. 5CR DIAGRAM STATE RFSW CONTACT WHEN TABLE LIMIT SWITCH IS POWER OFF USED.
  • Page 150 DATE AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT 60 KW BOOSTER-2 CANISTER ADDED WIRES 3 & 4 REF TO WL CONTROL BOARD 20JULY00 JCN MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. 701709 REMOVED BC3 REFERENCES 17AUG00 DR.BY...
  • Page 151 1 - GREEN FOR GROUND 20 - WIRES FOR CONTROL CIRCUIT NUMBERED 3, 3, 4, 5, 6, 98, 9, 10, 16, 17, 19, 20, 22, 29, 30, 31, 32, 97, SP1, SP2, 14, AND 15. 120V DETERG SIGNAL 120V RINSE AID SIGNAL...
  • Page 152 STEAM HEAT MODELS CONNECTION #1 CUSTOMER SUPPLIED 440/60/3 15A AT 90°C TB2 AND TB3 LOCATED IN WIREWAYS ON FRONT OF TANKS MIN. WIRE RATING FROM TB1 IN FROM DEVICE CONTACTORS CONTROL CABINET IN CONTROL CABINET MAIN CONTROL CABINET REMOTELY 1L1 1L2 1L3...
  • Page 153 ALL POWER SUPPLIED TO EACH CONNECTION POINT WIRING INTERCONNECTIONS REMOVE THI R D ELEC CONNECTI O N. ADD NOTE & TB2 / TB3 DETAI L . RESI Z E FOR BETTER CLARI T Y 9 SEPT 03 MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
  • Page 154 50A AT 90°C MIN. WIRE RATING TERMINAL BLOCK. MIN. WIRE RATING 50 AMP ELECTRICAL SERVICE FOR CONNECTION # 2 WILL WIRE DIRECTLY TO THE INPUT SIDE OF CONTACTOR. 15A AT 90°C MIN. WIRE WIRES LABELED "SP1" AND "SP2" ARE SPARE WIRES AND ARE INTENDED TO...
  • Page 155 USN-72, ELECTRIC REV. DESCRIPTION REV. DESCRIPTION DATE DATE AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT PANEL WIRING DIAGRAM MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. 701829 DR.BY J.MCALLISTER SCALE REV. The Dishwashing Machine Specialists...
  • Page 156 SEE NOTE 5 WASH TANK FLOAT TIMER TB2-12 TB2-7 TB3-17 TB3-16 NOTES 10kW 1. REMOVE JUMPER ACROSS WIRES 70 AND 9 WHEN RACK ADVANCE TABLE IS USED. FRSW TB3-22 TB3-15 TB5-1 2. REMOVE JUMPER BETWEEN TB3-23 RINSE TANK SEE NOTE 2...
  • Page 157 USN-72, STEAM REV. DESCRIPTION REV. DESCRIPTION DATE DATE AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH. ALL POWER SUPPLIED TO EACH CONNECTION POINT PANEL WIRING DIAGRAM MUST COMPLY WITH ALL LOCAL ELECTRIC CODES. 701832 J.MCALLISTER DR.BY SCALE REV. The Dishwashing Machine Specialists...
  • Page 158 WASH TANK FLOAT TIMER TB2-12 TB2-7 TB3-17 TB3-16 NOTES 1. REMOVE JUMPER ACROSS WIRES 70 AND 9 WHEN RACK ADVANCE TABLE IS FRSW USED. TB3-15 TB3-22 2. REMOVE JUMPER BETWEEN TB3-23 SEE NOTE 2 AND TB3-14 WHEN TABLE LIMIT SWITCH IS USED.
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  • Page 161: Part 8: Special Inserts

    Part 8: SPECIAL INSER TS PART 8: SPECIAL INSERTS In This Part— • Service Bulletins Introduction Part 8, Special Inserts contains late breaking service information in the form of Service Bulletins and other printed information that may be useful to you.
  • Page 162 109069. 12 Inches 1. Mark off the measurement of 12 inches from the end of the bulb. This will be at the end of the 1/2" nut that mounts inside of the tee.
  • Page 163 Part 6: REPLACEMENT P ARTS...

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