Service, Parts, Operation, Installation & General Manual
Contents
1. 7 Nylon Bushing and Item 9 Bronze Sleeve are not interchangeable When replacing wash arm bushings a bronze sleeve must replace a worn bronze sleeve and a nylon bushing must replace a worn nylon bushing W 0 17966 NATURAL GAS W 0 17967 L P GAS gt a lt w Lu a FIG 6 7 GAS BURNER ASSEMBLY 0 17966 NATURAL GAS W 0 17967 L P GAS 40 14A 15 16 17 18 19 20 20A 21 22 23 23A 24 26 27 28 29 30 31 31A 32 32A 33 35 36 PART NO W 2 17959 W 3 17816 W 3 97706 W 4 4575 W 1 7023 M 1 3571 W 1 7012 W 1 7 582 W 0 14185 W 1 17898 W 1 2223 W 1 17822 W 1 7524 W 1 5998 W 1 8131 W 0 7705 W 0 7642 W 1 8491 W 9 14824 W 1 7693 W 1 7651 W 2 17817 W 2 17957 W 2 97708 W 0 13334 W 1 7650 W 0 16196 W 0 16197 W 1 18291 W 1 17961 W 1 7285 W 1 10307 W 1 7637 W 1 13063 W 0 13335 W 1 13982 W 0 13984 W 0 20872 W 0 14374 W 1 7638 W 1 4992 W 2 4770 W 1 7634 FIG 6 7 GAS BURNER ASSEMBLY DESCRIPTION REAR SUPPORT Gas Burner FLUE ASSY Discontinued 10 1 81 FLUE ASSY Used on Production Machines Beginning 10 1 81 BURNER ASSY LOCKWASHER 1 4 SCREW Hex 1 4 20 x 1 2 12 NUT Hex 1 4 20 Cd Pl SCREW Rd Hd 1 4 20 x 1 2 12 SCREW Truss 3 8 16 1 lg S S COVER Heater Hole GASKET MOUNTING PLATE Gas Cont Valve LOCKWASHER 3 8 S S NUT HEX 3 8 S S SCREW Rd Hd 10 32 x 1 2 Ig CONTROL VALVE2. 2 CONTROL PANEL 008 ONLY 30 2 41 3 Figure 6 11 Electrical Control ITEM QTY NO PARTNO DESCRIPTION REOD W 0 18033 CONTROL BOX ASSY 230V 1 Ph or 208 240V 3 Ph w Gas or Steam Tank Heat Includes items 1 2 amp 4 thru 48 1 W 0 18034 CONTROL BOX ASSY 230V 1 Ph or 208 240 480V 3 Ph w Electric Tank Heat Includes items 3 3A amp 4 thru 48 1 1 W 0 16687 FUSE 20 Amp 250V Used on 115V 1Ph machines 1 2 W 0 16688 FUSE 10 Amp 250V Used on 230V 1Ph machines 2 3 W 0 16689 FUSE 8 Amp 250V Used on 208 240V 3 Ph machines 3 3A W 0 16690 FUSE 5 Amp 500V Used on 440 480V Ph machines 3 4 W 1 7201 TRANSFORMER 150KVA 1 5 W 1 7646 SCREW Rd Hd 10 32 x 3 8 12 4 6 W 1 7209 MOTOR CONTACTOR 3 Pole 1 7 W 1 7646 SCREW Rd Hd 10 32 x 3 8 12 For Contactor 4 8 W 1 7209 CONTACTOR 3 Pole Electric Heat Only 1 9 W 0 18032 e BASIC CONTROL BOX ASSY 115V 1Ph w Gas or Steam Tank Heat Not Shown 1 10 W 0 16559 LIGHT Red Power 1 11 W 0 16560 LIGHT Amber Cycle 1 12 W 1 10765 FUSE HOLDER 1 13 W 1 10766 e FUSE 1 6 Amp Slo Blo 1 14 W 1 20859 e CONTROL GUARD 1 15 W 2 17708 8 e NAMEPLATE 1 16 W 1 13963 e PATIENT TAG 1 17 W 1 12443 e ELECTRICAL SUPPLY CONNECTION TAG 1 18 W 1 5987 e SCREW Truss Hd 10 24 x 1 2 lg S S 6 NO 20 21 22 24 25 26 27 28 29 30 31 31A 32 32A 33 34 35 36 37 38 39 40 41 42 43 45 46 47 48 49 50 50 50 51 5
3. NAME PLATE DATA LABEL WARNING LABEL TRANSFORMER 440V Mach only NYLON CABLE CLAMP OPTIONAL EQUIPMENT AUTOMATIC TANK FILL CYCLE AUTO FILL TIMER HILL S START PUSH BUTTON SWITCH LABEL AUTOMATIC CYCLE SOLID STATE TIMER THERMAL CYCLE EXTENSION TIMER SOLID STATE RELAY QTY REQD AO A R A R N D 0 ON kr HIGH WATER LEVEL LOW WATER LEVEL COMPLETE ASSY W 3 20453 FIG 6 12 AUTOMATIC TANK FILL TYPE 50 S O N PART NO W 0 18865 W 0 20467 W 1 20449 W 0 18927 W 0 18866 W 0 18928 W 1 7684 W 1 12830 W 1 7580 W 0 20466 W 1 7587 W 1 8360 FIG 6 12 AUTOMATIC TANK FILL TYPE C DESCRIPTION FLOAT SWITCH Liquid 3 Amp ELBOW Street 1 4 S S BUSHING Extension WASHER Flat S S O RING 1 2 O D LOCKNUT 1 4 Brass BUSHING Reducer 1 2 to 1 4 ELBOW Pulling 1 2 90 CONNECTOR 3 8 90 LIQUID TIGHT CONNECTOR CONDUIT Liquid Tight 3 8 x 6 1 2 lg GASKET ASSY 1 2 NUT Drive 1 2 D RD A R 51 FRONT OF MACHINE 10 12 18 OR 19 ITEM 8 FOR STEAM 5 AND ELECTRIC FR ITEM 11 FOR GAS 5 7 4 HOOK UP FOR OPTIONAL 3 DOOR LOCK 1 21 REAR OF 2 4 MACHINE FIG 6 13 ELECTRICAL FITTINGS 52 ITEM NO O 0 1 W 1 7577 W 1 12977
4. position by spring action Timer continues to fill tank NOTE This lever should only be depressed at beginning of an operation when the machine does not have any water in it After the machine is operating the final rinse water will keep the tank full of water Sram tn O 5 4 TANK SELECTION SWITCHES Figure 3 3A Front Panel and Thermometer Shown with optional tank selection switches DD8 Only HOSE 3 3A TANK SELECTION Optional on DD8 Only This option enables either left right or both tanks to be operated during each automatic or manual cycle It enables an operator to cycle only one tank during non rush periods In most cases it also enables the machine to operate on one tank even if the second tank is inoperable 3 4 SOILED DISHTABLE OPERATION If your dishroom personnel observe these simple work rules your dishwashing operations will be fast and smooth and your dish breakage held to a minimum Instruct your bus boys or waitresses that leftover food must be removed from dishes before placing them in stacks See figure 3 5 This will assure maintaining cleaner wash water and reduced detergent costs Certain items are self stacking such as plates or trays Food soil should be removed from these items and the plates should be placed in manageable stacks An area on the soiled dish table should be designated as a build up area The stacks of dishes should be held in the build up are
5. Automatic Tank Fill Type C 46 6 13 Electrical Fittings 48 6 14 Door Lock Optional 50 6 15 Machine Mounted Final Rinse Booster 52 6 16 Machine Mounted Booster Plumbing amp Electrical 54 IMPORTANT When ordering parts please specify machine Model No and Serial No Order parts from your local authorized Blakeslee Service Agency or Parts Distributor Credit will not be issued for returned piece parts of an assembly 25 ITEM NO PARTNO 1 W 3 13075 1A W 3 97352 2 W 2 13072 3 W 1 7850 4 W 1 7007 3 W 1 7146 6 W 3 12555 7 W 1 17810 TA W 2 95951 8 W 0 14785 9 W 1 17245 10 W 3 17766 W 3 12512 11 W 1 7522 12 P 1 17230 13 W 3 17841 14 W 1 5629 15 W 1 18649 16 W 1 20629 OPTIONAL ITEMS 17 W 2 13330 18 W 3 13322 19 W 2 13324 20 W 1 13323 21 W 1 13329 22 W 1 8491 23 W 2 12967 24 W 3 12968 25 W 1 9677 26 W 1 7007 27 W 1 7146 28 W 1 7118 29 W 1 5999 30 W 1 8422 31 W 0 95681 32 W 1 95041 FIG 6 1 BASE TANK amp TRACKS DESCRIPTION TRACK ASSY TRACK ASSY FOR 1 2 RACKS Std DD8 INTERCHANGEABLE TRACK GUIDE SCREW TRUSS HD 1 4 20 x 1 2 lg S S LOCKWASHER 1 4 S S NUT HEX 1 4 20 S S SCRAP TRAY ASSY FRONT PANEL D8 FRONT PANEL D D8 3 8 NUT PLATED 3 8 LOCKWASHER PLATED BASE ASSY STD BASE ASSY OPTIONAL S S 3 8 FLAT WASHER PLATED CAPSCREW 3 8 16 HEX HD PLATED TANK ASSY e RIVET 182 dia x 11 32 lg S S e LEVER Stand Pipe Guide LABEL Close SPLASH GUARD COMP
6. Remove pilot adjustment cover screw figure 2 10 Turn inner adjustment screw clockwise to decrease or counterclockwise to increase pilot PROPER FLAME ADJUSTMENT 3 8 TO 1 2 INCH ee THERMOCOUPLE OR GENERATOR Figure 2 11 Pilot Flame Height flame BE SURE TO replace cover screw after adjustment to prevent possible gas leakage GAS VENTS Gas heated machines are furnished with flues These do not have to be connected to any vents The temperature is controlled by the thermostat located in the control box 2 11 STEAM INJECTION HEATER Connect incoming steam line to steam line tagged incoming steam This will be the line strainer It is recommended that a steam shut off valve and pressure gauge not supplied with machine be installed close to the dishwasher for servicing The tank water temperature is controlled by the thermostat located in the control box See figure 2 9 2 12 STEAM COIL HEATER Connect incoming steam line to line tagged steam supply This will be the line strainer It is recommended that a steam shut off valve and pressure gauge not supplied with machine be installed close to the dishwasher for servicing Connect condensate return line to condensate trap CAUTION CONDENSATE LINE MUST RUN PARALLEL OR DOWN FROM THE DISHWASHER IF CONDENSATE LINE HAS TO BE RUN VERTICAL A CONDENSATE PUMP MUST BE INSTALLED The tank water temperature is controlled by the thermostat located in the control
7. to 12 months delime the booster heat exchanger Remove the heat exchanger and submerge it in a tub of deliming solution Follow the instructions of the deliming product manufacturer for mixing the solution and for length of time of soaking 48 to 60 hours soaking time is generally required After soaking be sure to wash and rinse the heat exchanger thoroughly before installing it on the booster 5 8 ADJUSTMENTS THERMOSTAT Remove cover of thermostat encloser 8 figure 5 1 Turn thermostat adjusting screw clockwise to increase temperature and counter clockwise to decrease PRESSURE REGULATOR If the final rinse flow pressure is not between 15 and 25 psi adjust the pressure regulator 5 figure 5 1 observing the following a Loosen the 1 2 lock nut Flip HEAT FILL switch to FILL position b With the final rinse water flowing through the pressure regulator adjust to the correct pressure c To increase the flow pressure turn the screw clockwise Turning the screw counterclockwise will decrease the flow pressure d After the proper pressure is attained hold the 1 2 square head screw in place and tighten the lock nut 5 9 INSTALLATION Position the booster so that pressure gauge can be observed by machine operator Use the adjustable feet on the booster to level the unit Figure 5 2 indicates dimensions for the plumbing connections BOOSTER LOCATION Booster location with respect to the steam supply hot water supply and
8. 5 MINUTE TIMER Timed Fill Option SILICONE RECTIFIER Used With Item 50 and 50 POWER REQUIREMENT NAME PLATE QTY REQD N N N 0 D A D p a gt ee 49 Control Box Assembly Machines manufactured after 1 98 with suffix AAA and up NO t UND ha 14 15 16 17 18 19 20 20A 20B 20C 21 22 23 24 25 26 27 28 29 30 31 32 33 PART NO 17731 70155 20859 16559 16560 10765 10766 7202 16954 5987 17804 17726 16782 15799 7999 74114 17716 17241 70192 71605 71603 71601 71600 75581 7209 14480 7768 18132 7118 13063 7646 17708 99705 74123 7201 15871 74235 7202 74241 73375 73952 75452 tems not illustrated CONTROL BOX ASSEMBLY DESCRIPTION FRONT COVER THERMOMETER CONTROL GUARD POWER LIGHT RED CYCLE LIGHT AMBER FUSE HOLDER 1 6 10 FUSE SLO BLO PUSH BUTTON SWITCH TOGGLE SWITCH 10 24 x 1 2 S S TRUSS HD MACH SCREW CONTROL BOX GASKET CONTROL BOX TERMINAL BLOCK MOUNTING CHANNEL 8 32 x 3 8 R H M S GROUND LUG CHASSIS PANEL 10 32 x 3 8 SCREW MOTOR CONTACTOR OVERLOAD RELAY 115V 1 Ph OVERLOAD RELAY 230V 1 Ph OVERLOAD RELAY 208 240V 3 Ph OVERLOAD RELAY 440 480V 3 Ph AUX CONTACT 2 Pole N O 3 Ph Mach HEAT CONTACTOR TIMER THERMOSTAT HINGE 1 4 20 x 1 2 S S HEX HD MACH SCREW 8 32 x 3 8 R H M S 10 32 x 3 8 R H M S
9. IS CAM SWITCH LOCATED NEXT TO THE TIMER MOTOR TR 5 NUMBERS INTHE SQUARE BOXES ARE BOOSTER CONTROL CIRCUIT CONNECTION POINTS 1 SOLENO D VALVE STEAM GAS CONTROL L P 29 Gas CONTROL HTR IKW IMMERSION HEATER CONTACTOR ELEC TANK HEAT 504 SOLENOJD VALVE TAS 2LT POWER LIGHT RED AT CYCLE LIGHT AMBER TIMER GO SEC PUSHBUTTON START DOOR SWITCH TOGGLE SWITCH 9 7 6 2 FUSE 5 27 256 7 wc A AUXILIARY CONTACT oC KG PW 6 c7 06 KVA TRANSFORMER 380 med waea DESCRIPTION CHICAGO ILLINOIS WIRING DIAGRAM 0 8 DISHWASHER p 4e 737 36 pen Bye
10. LINE The steam inlet line is equipped with a line strainer 1 figure 5 1 and solenoid valve 2 the solenoid valve is controlled by an electric thermostat A steam trap 3 on the steam outlet assures efficient heating Periodic cleaning of the strainer is recommended No operator control of this system is required 5 5 HOT WATER INLET LINE The inlet piping contains a line strainer 4 pressure gauge 6 and pressure relief valve 7 Periodic cleaning of the line strainer is recommended The pressure regulator is adjustable see paragraph 5 8 The pressure gauge indicates the flow pressure of the final rinse water when the final rinse is in operation The gauge should be observed periodically to assure good final rinse action Good final rinse results are obtained when the flow pressure is between 15 and 25 P S I preferably 20 P S I To prolong the life of the gauge turn gauge cock 9 off Lever horizontal when not observing pressure 5 6 HOT WATER OUTLET LINE The thermostat sensing bulb is in the hot water outlet line See paragraph 5 8 for adjustment 5 7 CLEANING LINE STRAINERS The water outlet and steam inlet line strainers protect the solenoid valves from dirt Every month clean the strainer as described under TROUBLESHOOTING No Final Rinse Be sure water and steam supplies are turned off and pipes are cool 18 SECTION 5 OPTIONAL EQUIPMENT LIME DEPOSITS If lime deposits are a problem in your area every 9
11. STRAINER RETAINER e RETAININGRING e PLUG RET WASHER 1 7 8 DIA e DRAIN PLUG e PLUG RET WASHER 1 1 2 DIA STRAINER Drain Seat RING Drain Seat GUIDE RING Stand Pipe CAM SHAFT ASSY GROOVE PIN Cam Shaft SPACER Cam Shaft O RING KNOB Cam Shaft STOP NUT Elastic 5 16 18 MOTOR 1 H P 115 230V 1 Ph 60 Hz Used on 115 amp 230 Single Phase machines MOTOR 1 H P 208 240 480 3 Ph 60 Hz Used on 208 240 440 480V Three Phase machines 1 H P MOTOR 115 230V 1 Ph 50 Hz Export only 1 H P MOTOR 220 440V 3 Ph 50 Hz Export only COLLAR Impeller Shaft SETSCREW 5 16 x 3 8 BRACKET Pump Case amp Motor QUAD RING O RING PUMP CASE PUMP SEAL IMPELLER ASSEMBLY consisting of 5 DIA IMPELLER IMPELLER SHAFT 3 16 Sq x 3 4 Lg Key 11 32 x I D 1 1 4 O D S S Washer 5 16 X S S LOCK WASHER 5 16 18 x 3 4 S S HEX HD MACH SCREW PUMP EYE LOCKWASHER 1 4 S S NUT Hex 1 4 20 NUT Hex 3 8 16 PLATED 3 8 LOCKWASHER PLATED 3 8 SEAL WASHER 3 8 LOCKWASHER PLATED SCREW 3 8 16 x 1 lg Hex Hd PLATED Machines manufactured after 1 98 with suffix AAB and un MOTOR MOUNTING BRACKET O RING PUMP WELDMENT GASKET OTY REOD Rh D Neee a D BRB BB HB Be A D Ri a ja a 29 30 NO ON QA PART NO W 3 12017 W 0 16554 W 1 8148 W 1 7524 W 1
12. See Notes W 1 7563 W 1 7580 W 1 7654 W 1 7617 W 1 7583 See Notes See Notes W 1 8836 See Notes See Notes See Notes W 1 7572 W 0 20925 W 1 7573 W 1 7574 See Notes See Notes See Notes W 1 7587 W 1 8360 W 1 12437 W 1 7592 W 1 7589 W 1 7590 FIG 6 13 ELECTRICAL FITTINGS DESCRIPTION 1 2 x 90 E M T Conduit Box Connector 1 2 E M T Conduit Strap 1 2 x 50 lg E M T Conduit Custom Bent for Each Machine 1 2 Straight E M T Box Connector 3 8 90 Liquid Tight Connector 3 8 Straight Liquid Tight Connector 1 2 Straight Liquid Tight Connector 1 2 90 Liquid Tight Connector 1 2 x 11 1 2 Liquid Tight Conduit For Motor 1 2 x 15 1 2 Liquid Tight Conduit For Electric Heating Element 1 2 x 45 Liquid Tight Connector 1 2 x 13 Liquid Tight Conduit Gas 3 8 x 7 1 2 Liquid Tight Conduit 3 8 x 15 1 2 Liquid Tight Conduit 1 2 Unilet Tee 1 2 Unilet 4 way 1 2 Unilet Tee Cover 1 2 Unilet Tee Cover Gasket 1 2 x 10 1 2 Liquid Tight Conduit Steam Coil 1 2 x 8 1 2 Liquid Tight Conduit Steam Injector 1 2 x 20 Liquid Tight Conduit Optional Door Lock 1 2 Junction Box Gasket 1 2 Drive Lock Nut SNAP BUSHING E M T Thinwall Conduit order 3 8 or 1 2 dia x 10 ft length 3 8 Liquid Tight Conduit order feet req d 1 2 Liquid Tight Conduit order feet req d t 6 14 DOOR LOCK Optional sau O to R PART NO W 2 20915 W 1 7601 W 0 20839
13. a prepunched hole on the front of each dishwasher tank adjacent to the right side of the dishwasher pump motor This is for the detergent probe See figure 2 13 This hole was put on all machines shipped after approximately 6 1 81 NOTE Itis highly recommended that a separate detergent dispenser be used for each tank of a DD8 Before 6 1 81 there were prepunched holes on the side of the dishwashers for detergent probes see figure 2 14 These holes are covered with carbon steel caps If these holes are not used replace the caps with stainless steel caps INJECTOR EQUIPMENT INJECTOR iA SECONOARY S S INJECTOR TRANS PRIMARY Figure 2 15 Detergent Injector Hook Up 10 SECTION 3 OPERATION 3 1 PREPARING THE DISHWASHER FOR the top of the standpipe as long as the machine is on When the OPERATION machine is cycled the final rinse water will bring the wash water up to the lop of the standpipe a Close drain s by turning handle of drain valve see figure 2 8 clockwise as far as it will go Be sure standpipe guide is in position See figure 3 1 Place scrap screens in position See figure 3 2 Be sure all wash arms and lower final rinse arm s are in position and spin freely Tighten turn clockwise lower spindle and upper wash rotor nut by hand b Scatter the initial charge of detergent in scrap trays Replenish as needed unless automatic detergent d
14. all glasses cups etc should likewise be sent through the machine at the same time to eliminate rack sorting The machine should be operated as close to 100 efficiency as possible for a brief period while the build up area is being cleared Dishes from the build up area should be quickly processed through the machine so the loading operator can return to his normal scrapping and stacking function Better results can be obtained from a DD8 dishwasher if one tank is used exclusively for china and the other tank is used for glasses and silver 3 6 OPERATING THE DISHWASHER a After filling the wash tank and adding detergent raise the door and slide the rack into the dishwasher Center of both tanks in a DD8 b Close the door dishwasher has a safety switch figure 1 2 that will prevent the machine from operating if the door is open c Automatic Operation Momentarily depress START button Machine will automa tically wash and rinse one rack of dishes Automatic CYCLE light figure 3 3 will be on during the entire automatic cycle When the cycle is over the light will turn off If the door is opened during the automatic cycle the machine will stop The automatic cycle will have to be restarted when the door is closed again This feature provides a complete cycle to insure proper cleaning of the rack of dishes or added articles To avoid being splashed it is advisable to wait approximately 5 seconds before opening the door after
15. booster on until dishwasher has been filled with water and has completed one full cycle 5 20 AUTOMATIC TANK FILL This option consists of a float switch see figure 6 12 connected in parallel with the manual fill switch When the machine is turned on and the machine is empty or the water level is below 6 3 4 the float switch contacts will close energyzing the fill solenoid permitting water to flow into the tank The switch will open de energyzing the fill solenoid when the water level reaches approximately 9 This is enough water to operate the dishwasher The final rinse water will bring the water level up to the top of the standpipe approximately 12 after completing 1 or 2 automatic cycles Placing the float switch a few inches below the high water level prevents the water turbulence from turning the switch off and on during an automatic wash cycle 5 21 TIMED FILL This option is used to fill the machine with water when it is empty Usually at the start of a day s operation or after 24 cleaning the machine It should NOT be used to add small amounts of water to the tank The option consists of a spring return toggle switch HEAT FILL button located in the front panel 4 figure 3 3 and a timer Depressing the switch for 2 seconds operates the timer for3 minutes The timer contacts bypass parallel the manual fill switch and will energize the fill and rinse solenoid valve In most cases this is more than enough time to fi
16. dishwashing machine is important for efficient booster operation Position the booster as close to these items as possible If the booster is positioned 20 feet or more from the dishwasher though the final rinse water is 180F when it leaves the booster the exposed piping through which the water travels will cool the water The same situation applies to the booster hot water supply Similarly when steam is carried over a long distance through an exposed pipe a pressure loss and temperature loss results The booster cannot operate effectively with long distances of exposed piping If the booster is located too far from the dishwasher it is recommended that an optional final rinse low temperature control be installed in the dishwasher HEAT OPTIONAL WATER EXCHANGER HAMMER SILENCER gt PAN 4 o AF 2 OPTIONAL STEAM PRESSURE REDUCING VALVE 1 STEAM INLET STRAINER 6 PRESSURE GAUGE 2 SOLENOID VALVE 7 PRESSURE RELIEF VALVE 3 STEAM TRAP 8 THERMOSTAT 4 HOT WATER STRAINER 9 GAUGE COCK 5 PRESSURE REGULATOR Figure 5 1 Steam Hot Water Booster 19 BOOSTER TO DISHWASHER CONNECTIONS Final rinse supply piping is 3 4 inch N P T for D8 1 N P T for DD8 Connect wires of steam solenoid 2 figure 5 1 to wires marked 2 and 4 in the control panel terminal strip Protect the wires with a 1 2 inch conduit SUPPLY AND CONDENSATE CONNECTIONS When connecting the hot water and steam inlet piping include a s
17. in your area 4 7 TROUBLESHOOTING WASH PUMP MOTOR WILL NOT START EITHER TANK 1 Automatic timer defective Operate wash pump manually see paragraph 3 60 If pump will run on manual but not automatic this indicates a defective timer 2 Motor overload fuses blown Check the three fuses for continuity see items 1 thru 3 figure 6 11 Check junction box above motor if not working NOTE If overload fuses are blown open this indicates either a defective motor or a foreign object has jammed the pump impeller Turn off power supply drain tank and check and remove any obstruction in the tank and pump intake rs ioi WILL NOT START Main source of power off Check power supply from customer s fuse or circuit breaker 2 Control fuse blown open Check control fuse for continuity 3 Door safety switch not actuated or defective Be sure door is fully closed and rear portion of door handle has activated closed the Switch See figure 1 2 HEAT FILL switch not ON or defective Flip the switch to ON position If red POWER light comes on switch is good Check further 2 Main gas valve steam valve or electrical heating circuit breaker not turned on Check 15 3 Thermostat set too low or defective Open control box and turn thermostat clockwise until heat comes on NOTE If heat comes on do not leave thermostat at this high setting Adjust to obtain 150 160 F wash tank temperatur
18. the same time a vent opens admitting air to the system to break the vacuum 1 6 HEATERS Wash tank water is heated by electricity steam coil steam injection or gas Electrically heated machines are available in 208 240 440 or 480 volts only DOOR INTERLOCK SAFETY SWITCH DOOR HANDLE IN CLOSED POSITION Figure 1 2 Door Safety Switch 1 7 AUTOMATIC OR TIMED TANK FILLED Optional All machines can be supplied with an automatic or timed tank fill See para 5 20 amp 5 21 for description 1 8 Final Rinse Boosters Optional Machine can be equipped with an optional built in electric booster remote mounted electric booster or remote mounted steam booster These boosters are designed to raise rinse water temperature from 140 Fto 180 195 Refer to para 5 2 for description 1 9 Heat and Voltage Field Changeover One ofthe most desirable features ofthe D8 Dishwasher is it can easily be field converted to different tank heats and voltage All of the tank heats fit on tne same mounting bracket Allthat is necessary to convert from one type of heat to another is to order the kit for the type of heat desired and make the wiring changes as described below in the parts list pages of this manual and the wiring diagram W 3 17715 figure 15F 20 of Modular Dishwasher Service Manual NOTE to keep the cost of conversion as low as possible it will be necessary to purchase a few electrical components suc
19. 2 PART NO W 2 17731 W 1 18132 W 1 7118 W 1 12504 W 1 7999 W 3 17726 W 2 17716 P 1 17241 W 1 13914 W 0 14811 W 1 7999 W 2 14480 W 1 7999 W 1 7768 W 1 13063 W 0 13822 W 1 95995 W 1 7202 W 0 16954 W 1 8097 W 1 8096 W 0 14255 W 1 11545 W 1 7285 W 1 8754 W 1 8752 W 2 17741 W 2 17804 W 1 5427 W 0 20833 W 0 14479 W 0 20452 W 0 95940 W 0 20842 W 0 95934 W 2 20878 FIG 6 11 ELECTRICAL CONTROL BOX DESCRIPTION PANEL Front Cover HINGE S S SCREW Hex Hd 1 4 20 x 1 2 lg INSULATOR 1 32 Fiber SCREW Mach Rd Hd 8 32x5 8 lg CONTROL BOX CHASSIS PANEL SCREW Cut 10 32 x 3 8 1g AUXILIARY CONTACT N o 2 FUSE BLOCK 3 Pole SCREW Mach Rd Hd 8 32 x 5 8 Ig TIMER 60 Sec 115V SCREW Mach Rd Hd 8 32 x 5 8 Ig THERMOSTAT SCREW Mach Rd Hd 8 32x3 8 lg THERMOMETER Wash 120 DECAL SWITCH START Pushbutton SWITCH 3 Pos Toggle MACHINE NAMEPLATE SCREW Self Tapping 4 1 4 EYELET TIE WRAP 7 SCREW Rd Hd 10 24 x 1 4 LOCKWASHER 10 24 ELECTRIC HEAT WARNING TAG USED ONLY ON ELECTRICALLY HEATED MACHINES GAS HEAT WARNING TAG USED ONLY ON GAS HEATED MACHINES ABBREVIATED WIRING DIAGRAM CONTROL BOX GASKET ASSY WASH amp RINSE REQUIREMENT PLATE SWITCH 3 Pos Toggle Spring Return on Fill Used on Machines with Timer Fill OPTION ONLY BLANK CONTROL GUARD SWITCH Toggle 1 MINUTE REPEAT CYCLE TIMER Timed Fill Option 1 MINUTE POWER INTERVAL TIMER Timed Fill Option
20. 5 W 1 11947 W 0 13965 W 1 13120 W 1 2223 FIG 6 8 STEAM COIL ASSEMBL Y DESCRIPTION COIL ASSY SCREW Truss Hd 3 8 16 x 1 S S LOCKWASHER Split 3 8 S S NUT Hex 3 8 16 S S GASKET Copper Asbestos for 1 2 pipe LOCKNUT 1 2 N P S L Brass Pipe COUPLING 1 2 BIk NIPPLE 1 2 x 3 1 2 Ig 81k ELBOW 1 2 NPT 90 BIk NIPPLE 1 2 x 2 lg BIk UNION 1 2 Bik NIPPLE 1 2 x 3 lg REDUCER ELBOW 3 4 to 1 2 90 Blk NIPPLE Close 3 4 SOLENOID VALVE 115V 3 4 STEAM REPAIR KIT 3 4 Solenoid Valve less coil COIL ONLY STEAM STRAINER 3 4 Line Brass STRAINER SCREEN UNITED BRASS 3 4 LINE STRAINER CAP 3 4 LINE STRAINER O RING STEAM TRAP 1 2 NPT STEAM TRAP REBUILDING KIT ELBOW Street 1 2 Blk NIPPLE 1 2 x 1 1 2 Blk MOUNTING PLATE Steam Coil GASKET Immersion Heater PD D 4 P P2 _ ea is A R A R NON 43 44 COMPLETE ASSY W 3 12988 FIG 6 9 STEAM INJECTOR ASSEMBLY W 3 12988 2 S Q Q N 13A 13B 14 15 16 17 18 18A 18B 18C 19 20 PART NO W 1 12943 W 1 7027 W 1 7683 W 1 12986 W 1 12944 W 0 14267 W 0 17702 W 0 14185 W 1 7524 W 1 5998 W 1 8453 W 1 7777 W 1 12085 W 0 17390 W 0 17960 W 1 14825 W 1 7634 W 1 11968 W 0 14268 W 1 7026 W 1 13385 W 0 17507 W 0 17506 W 1 12954 W 1 2223 FIG 6 9 STEAM INJECTOR ASSEMBLY D
21. 5 W 2 14514 W 1 2426 W 1 2731 W 3 17756 W 1 20844 W 1 2519 W 1 8149 W 3 14853 10 Nylon Bushing and Item 12 Bronze Sleeve are not interchangeable When replacing wash FIG 6 4 LOWER RINSE amp WASH ARMS DESCRIPTION RINSE ARM ASSY e RINSE PLUG e RINSE ARM Left e JAM NUT 1 2 20 S S e REVOLVING RINSE HEAD e RINSE ARM Right e RINSE FLOODING NOZZLE Lower RINSE SPINDLE ASSY WASH ROTOR ASSY e BUSHING Used after 1 1 78 e BUSHING Used before 1 1 78 e SLEEVE Bronze Used before 1 1 78 LOWER MANIFOLD ASSY QTY REQD NOR N Rh e NOK arm bushings a bronze sleeve must replace a worn bronze sleeve and a nylon bushing must replace a worn nylon bushing 35 E FIG 6 5 UPPER RINSE amp FILL PLUMBING 36 NO 2 PART NO W 1 7026 W 1 13385 W 1 7509 W 1 7508 W 1 4082 W 1 7942 W 1 16383 W 1 14730 W 1 12488 W 0 14784 W 1 5996 W 0 14786 W 1 5913 W 1 7033 W 1 13317 W 0 7802 W 1 11065 W 0 18441 W 1 7235 W 1 8067 W 1 16892 W 1 12585 W 1 7598 W 1 12574 W 0 14516 W 0 13365 W 3 13354 W 1 8231 W 1 8709 W 1 13433 W 0 97630 W 0 97629 W 1 7683 W 0 97628 W 0 20256 W 0 14323 W 1 7509 FIG 6 5 UPPER RINSE amp FILL PLUMBING DESCRIPTION STRAINER Line SCREEN ONLY For Line Strainer NIPPLE Close 3 4 TEE Brass 3 4 x 3 4 x 1 4 GAUGE COCK 1 4 PLUG 1 4 Brass PIPE FLANGE ASSY 3 4 GASKET Fl
22. 5998 W 1 14723 W 0 14733 W 0 12015 W 1 12023 W 1 7850 W 1 7007 W 1 7146 W 2 16380 W 0 20593 W 2 13431 W 2 13430 W 1 14720 W 3 14708 W 1 14712 W 1 20895 W 0 17738 W 1 12607 W 1 12026 W 1 12511 W 1 7007 W 1 7146 W 1 12987 W 0 14093 W 0 14786 W 2 17739 W 0 16053 W 1 12836 W 1 95370 W 1 95829 FIG 6 3 D 8 DOOR amp LIFTING MECHANISM DESCRIPTION DOOR HANDLE ASSY e BEARING Flange SCREW 3 8 x 3 4 S S HEX HEAD BOLT LOCKWASHER 3 8 S S NUT 3 8 S S SUPPORT BRACKET Door Handle BEAR ING Oilite Sleeve RETAINING RING 3 8 LINKAGE ASSY Door SCREW TRUSS HD 1 4 x 1 2 S S LOCKWASHER S S 1 4 NUT HEX S S NAMEPLATE Door 1 8 S S BLIND RIVET BRACKET Roller R H BRACKET Roller L H ROLLER Door DOOR HOOD ASSY e PLUG Bumper DOOR PLUG Optional Used with Door Safety Lock Only e GROOVE PIN 1 8 dia x 1 2 lg SCREW 1 4 20 x 1 1 2 lg S S STIFFENER Door Guide GUIDE Door LOCKWASHER 1 4 S S NUT 1 4 20 S S SPRING Extension EYEBOLT NUT Hex5 16 18 BRACKET ASSY Spring COTTER PIN WASHER Flat ENERGY SAVER LABEL SPLASH SHIELD QTY REQD NNUNNARANA gt NeNNNANNMNNNNNA A e HRP NR D 31 FIG 6 3A DD8 DOOR amp LIFTING MECHANISM ITEM NO JAN amp Q2 W Q9 Q2 D ND NN NN NNN l2 o 0 ARGBNSSSBYAGCEGSSSPSHAAARBHES PART NO W 3 95944 W 0 16554 W 1 8148 W 1 7524 W 1 599
23. 8 W 1 14723 W 0 14733 W 0 12015 W 1 12023 W 1 7850 W 1 7007 W 1 7146 W 2 16380 W 0 20593 W 2 13431 W 2 13430 W 1 14720 W 3 97682 W 1 14712 W 1 20895 W 0 17738 W 1 12607 W 1 12026 W 1 12511 W 1 7007 W 1 7146 W 1 12987 W 0 14093 W 0 14786 W 2 95946 W 0 16053 W 1 12836 W 1 95370 W 1 93829 W 1 97687 W 2 95949 FIG 6 34 DD8 DOOR amp LIFTING MECHANISM DESCRIPTION DOOR HANDLE ASSY e BEARING Flange SCREW 3 8 x 3 4 S S HEX HEAD BOLT LOCKWASHER 3 8 S S NUT Hex 3 8 S S SUPPORT BRACKET Door Handle BEAR ING Oilite Sleeve RETAINING RING 3 8 LINKAGE ASSY Door SCREW TRUSS HD 1 4 x 1 2 S S LOCKWASHER S S 1 4 NUT HEX S S NAMEPLATE Door 1 8 S S BLIND RIVET BRACKET Roller R H BRACKET Roller L H ROLLER Door DOOR HOOD ASSY e PLUG Bumper DOOR PLUG Optional Used with Door Safety Lock Only e GROOVE PIN 1 8 dia x 1 2 12 SCREW 1 4 20 x 1 1 2 1g S S STIFFENER Door Guide GUIDE Door LOCKWASHER 1 4 S S NUT 1 4 20 S S SPRING Extension EYEBOLT NUT Hex5 16 18 BRACKET ASSY Twin Springs COTTER PIN WASHER Flat ENERGY SAVER LABEL SPLASH SHIELD HANDLE REAR TIE WELDMENT Included with W 3 95944A SPRING TIE BAR QTY REQD P p d A DN DD P P B2 B2 2 HR D D 33 3 5 aun h gt N PART NO W 2 2279 W 1 2296 W 2 14513 W 0 14516 W 1 1451
24. ESCRIPTION HALF NIPPLE 3 8 x 2 Brass INJECTOR Steam Brass NIPPLE Close 1 4 Brass COUPLING Reducer 1 2 to 1 4 Brass NIPPLE 1 2 x 2 NPSL Brass LOCKNUT 1 2 N P S L Brass Pipe WASHER Copper Asbestos SCREW Truss Hd 3 8 16 x 1 S S LOCKWASHER 3 8 S S NUT Hex 3 8 16 BUSHING Reducer 3 4 to 1 2 Brass CHECK VALVE 3 4 Brass SOLENOID VALVE 3 4 NPT 115V STEAM REPAIR KIT 3 4 Solenoid Valve less coil COIL ONLY STEAM ELBOW STREET 3 4 x 90 BIk NIPPLE Close 3 4 Blk UNION 3 4 NIPPLE 3 4 x 2 Blk STRAINER 3 4 Line Brass STRAINER SCREEN UNITED BRASS 3 4 LINE STRAINER CAP 3 4 LINE STRAINER O RING MOUNTING PLATE Injector GASKET Immersion Heater QTY REQD O O O D A R Z gt P D DD 45 FIG 6 10 ELECTRIC TANK HEAT W 0 95377 HEATING ELEMENT ASSEMBLY 46 NO AN PARTNO W 0 95377 W 0 18795 W 1 2223 W 1 12024 W 1 12025 W 2 20875 W 2 20876 FIG 6 10 ELECTRIC TANK HEAT DESCRIPTION HEATING ELEMENT ASSY Consists of Items 2 3 4 and 5 HEATER 2 5 KW GASKET Heater WASHER Heater S S LOCKNUT 2 N P T 13 ELEMENT WRENCH For installation inside tank OPTIONAL 10 ELEMENT WRENCH For installation exterior of tank OPTIONAL QTY REOD 47 NN A R A R SECTION 6 ILLUSTRATED PARTSLIST WO 1 CONTROL PANEL 12 11 13 49 14 20 3940 33 51
25. For L P Gas CONTROL VALVE For Natural Gas SCREW Hex Hd 1 4 20 x 3 4 lg NIPPLE 1 2 x 2 lg Black ELBOW Reducing 1 2 to 3 8 90 Black TUBE 14 x 17 lg Alum FRONT SUPPORT Gas Burner FLUE COVER Discontinued 10 1 81 FLUE COVER Used on Production Machines Beginning 10 1 81 CONNECTOR 1 2 Tube to 3 8 Pipe THERMOCOUPLE 24 Ig PILOT BURNER For Natural Gas PILOT BURNER For L P Gas SHIELD Pilot BRACKET Pilot amp Thermocouple LOCKWASHER No 10 SCREW Rd Hd 10 32 x 3 8 12 LOCKWASHER No 8 Cd PI SCREW Rd Hd 8 32 x 3 8 lg Cd PI TUBE Alum 1 2 x 7 1 2 lg BURNER VALVE Std for Natural Gas 078 orifice e ORIFICE 078 dia Natural Gas BURNER VALVE Std for L P Gas 052 orifice e ORIFICE 052 dia Gas SCREW Truss Hd 10 24 x 3 8 MIXER PLATE Gas Burner MIXER HEAD NIPPLE 3 4x1 3 8 lg QTY REQD NNN BR D Nr L L A R A R Ri a a GERN 41 COMPLETE ASSEMBLY W 3 13129 FIG 6 8 STEAM COIL ASSEMBLY W 3 13129 42 NO S Q Un gt 15A 15B 16 16A 16B 16C 17 17A 18 19 20 21 PART NO W 3 13090 W 0 14185 W 1 7524 W 1 5998 W 0 17702 W 0 14267 W 0 13128 W 0 20258 W 1 10029 W 1 14824 W 1 11957 W 0 13127 W 0 7644 W 1 7634 W 1 12085 W 0 17390 W 0 17960 W 1 7026 W 1 13385 W 0 17507 W 0 17506 W 0 16877 W 0 1813
26. ONENT ASSY For corner model machines e SPLASH GUARD REAR MOUNT Splash Guard BOTTOM MOUNT Splash Guard HANG ING STRIP Splash Guard SCREW Truss Hd 1 4 20 x 5 8 S S BRACKET Detergent Dispenser BRACKET Rinse Injector SCREW Hex Hd 1 4 20 x 3 4 S S LOCKWASHER 1 4 NUT Hex 1 4 20 SCREW Hex Hd 1 4 20 x 1 2 S S SCREW Rd Hd 1 4 20 x 1 2 S S PLUG FOR DETERGENT DISPENSER PROBE HOLE DETERGENT DISPENSER LABEL WARNING LABEL DRAIN ON THIS SIDE QTY REQD NADPH A A R Ra p p 79 PD DO WWW 27 28 FIG 6 2 STAND PIPE PUMP amp DH ITEM 2 S 00 s w DN AN un 17B 17C 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 20 21 23 PART NO W 1 17847 W 1 17837 W 1 18641 W 0 18647 W 0 18645 W 1 18427 W 0 18646 W 1 18642 W 1 18644 W 1 18648 W 1 14802 W 0 14895 W 1 13905 W 1 10340 W 1 2924 W 0 18794 W 0 17798 W 0 8247 W 0 16241 W 0 16300 W 1 17794 W 1 7117 W 4 13087 W 0 13088 W 1 13446 W 3 14849 W 2 2255 W 2 17762 W 2 95673 W 2 95252 M 1 1658 1 5587 W 1 7598 W 1 7621 W 2 12535 W 1 7007 W 1 7146 W 0 14785 P 1 17245 W 1 8523 P 1 17245 W 1 7656 74505 75004 75761 5871 Items not illustrated FIG 6 2 SIAND PIPE PUMP amp DKAIN DESCRIPTION STAND PIPE ASSY e STANDPIPE e DRAIN
27. OWNER S MANUAL D 8 DD 8 HIGH TEMP DISHWASHER eri ct BLAKESLEE BLAKESLEE 1844 South Laramie Avenue 66 Crockford Boulevard Chicago IL 60804 Scarborough Ontario Canada M1R 3C3 Phone 708 656 0660 Phone 416 751 2625 Listed below are items NOT covered under warranty 1 Lighting of Gas Pilots At the time of installation the gas pilots and burners should be adjusted Continued failures of pilot lights would indicate dirty gas lines improper original adjustment or intermittent drafts blowing out the flame 2 Replacing Fuses or Resetting Overloads Replacing a blown fuse or resetting an open overload breaker is a very simple procedure and is the owner s responsibility If the machine continues to blow fuses or open the overload breaker contact you nearest authorized Blakeslee Service Center 3 Adjusting Tank Heats Heat adjustments are covered in this Manual and must be adjusted depending upon desired results 4 Proper Loading of Dishes It is important the machine owner s personnel observe the instructions outlined in paragraph 2 2 5 Cleaning Drain Valves Foreign articles lodged in the drain valve seat should be removed as a part of normal daily cleaning 6 Cleaning Rinse or Wash Nozzles and Line Strainers Keeping a dishwasher clean and removing obstructions from the nozzles and line strainers will be a periodic function of the machine owner s personnel The cleaning periods will vary depending upon impurities
28. PLUG 1 4 N P T Pipe Used in place of Pressure Gauge REGULATOR Pressure 3 4 STRAINER 3 4 Brass GASKET ASSY 1 2 LOCKNUT Tiger Grip ELBOW 3 8 x 45 CONDUIT 3 8 31 lg Liquid Tight ELBOW 3 8 x 90 Liquid Tight NOTE W 1 7589 3 8 Liquid Tight Conduit order feet reqd QTY REQD Rh OO Derry A R A R A R D D A R 59 ZOWPMENT x 129 i 4 16 4002 Deny INE POVPMENY et 208 2400 RASO COo vt Surrey 41413 EQUIMENT eso Y 4 C DPWASE 60 SUPPLY LINES lt amp er FRANSFORMER e e 405 240 Jew 3 IVPPLY Lives BOOSTER CONTROL CYCLE LIGHT AMBER TIMER MOTOR 3 rase PEA WASH PUMP RINSE FILL SOLENOIDO 2 Hu awe TANK NEAT O al ser 2 mS 4T LIGHT ireo 4c n gt 22 ee pe A es er NTR k l FUSE ED M zt DISPENSER TRANSFORMER 208 240 V A C 2 XW ELECTRIC TANK EATER e 78 DISPENSER POWER 2 CONTROL CONNECTIONS PARTS amp WIRING EY OTHERS 1a at 4 gt 11 440 490 v A C IKW ELECTRIC TANK HEATER NOTES ALL WIRES ARE OENT ED WITH WIRE MARKERS 2 LINE MOTOR CIRCUIT ANO IMMERSION HEATER WIRES ARE 2 AWG BLACK TYPE MTW 05C coov 3 CONTROL CIRCUIT WIRES ARE 6 AWG REO TYPE MTY J05C 6007 4 TR I
29. R 3 4 N P T Galv HEATER Immersion 2 5 K W SCREW 6 32 x 1 2 Ig Rd Hd SWITCH 250 High Limit Cut Off BOX Booster Element GASKET ASSY Booster TANK ASSY Booster Element NUT 1 4 20 LOCKWASHER 1 4 SCREW Hex Hd 1 4 20 x 1 2 Ig NOTE W 1 7590 1 2 Liquid Tight Conduit order feet req d BOOSTER IMMERSION HEATER CHART HEATER PART NO VOLTAGE K W 2 a om s om me s mm me mem _ me s 57 58 FIG 6 16 MACHINE MOUNTED BOOSTER PLUMBING amp ELECTRICAL SINGLE D8 ONLY ITEM NO PART NO 1 W 0 14250 2 W 1 13608 3 W 1 8219 4 W 0 18263 5 W 0 18261 6 W 0 95018 7 W 1 8217 8 W 1 8219 9 W 1 18263 10 W 1 12488 11 W 0 14250 12 W 1 7508 13 W 1 7683 14 W 1 4082 15 W 1 7917 15A W 0 18194 16 W 1 7116 17 W 107916 18 W 1 7026 19 W 1 7587 20 W 1 8360 21 W 1 7579 22 See Note 23 W 1 7580 FIG 6 16 MACHINE MOUNTED BOOSTER PLUMBING amp ELECTRICAL DESCRIPTION NIPPLE Close 3 4 x 1 1 2 lg Brass UNION 3 4 Brass ELBOW 90 Brass PIPE Brass 3 4 x 8 lg ELBOW 45 Brass PIPE Brass 3 4 x 38 Ig UNION ELBOW 3 4 x 90 Brass ELBOW 3 4 x 90 N P T Brass NIPPLE 3 4 x 8 lg Brass SOLENOID VALVE 3 4 120V NIPPLE 3 4 Close TEE 3 4 x 3 4 x 1 4 NIPPLE Close 1 4 N P T x 7 8 lg GAUGE COCK 1 4 N P T GAUGE Pressure GAUGE Pressure Chrome Plated Optional
30. Remove standpipe and screen Clean thoroughly in water with wire brush h Wash and clean INSIDE OF MACHINE using a hose See figure 3 4 1 Leave DOOR open to dry interior of machine 1 Thoroughly clean dishwashing area k Clean and refill Detergent Dispenser if machine has this optional equipment as instructed by your detergent supplier 1 Replace standpipe and screen flip stand pipe retainer lever in place Additional Blakeslee Racks W 0 16428 Multipurpose Rack W 0 16429 Combination Rack 4 1 MOTOR No Lubrication required 4 2 PUMP No Lubrication required 4 3 DOORS No Lubrication required 4 4 WASH ARMS a Wash arms upper and lower should turn freely and continue turning for a few seconds after being whirled by hand b If the scrap screens are not properly in place obstructions such as prune seeds or bones may clog the wash arm nozzles The wash arms are easily removed for cleaning c To remove the lower wash arm first lift off the rinse arm then unscrew the spindle bearing pin item 8 figure 6 4 Lift off lower wash arm d The upper wash arm s is removed by removing the wash rotor nut item 12 figure 6 6 4 5 FINAL RINSE ARM 8 NOZZLES a The rinse nozzles will need frequent cleaning if the water contains much lime or other solids b The hole in the rinse nozzle on the lower rinse arm may be cleaned with a wire and paper clip Push the scale or ob s
31. SECTION 5 5 1 5 2 5 17 5 20 5 21 5 22 5 23 SECTION 6 TABLE OF CONTENTS DESCRIPTION General Description INSTALLATION Plumbing and Electrical Connections Location Dish Table Electrical Connections Pump Rotation Fill Rinse Drains Heating Systems Electric Heater Gas Heater Steam Injection Heater Steam Coil Heater Electrical Detergent amp Rinse Injector Connections OPERATION Preparing Dishwasher for Operation Auto Tank Fill Timed Tank Fill Tank Selection DD 8 only Soiled Dish Table Operation Loading Machines Operating the Dishwasher Shut down and Cleaning MAINTENANCE AND LUBRICATION Motor Pump Doors Wash Arms Final Rinse Arm and Nozzles Pump Motor Overload Protection Troubleshooting OPTIONAL EQUIPMENT General Hot Water Boosters Machine Mounted Booster Automatic Tank Fill Timed Fill Door Safety Lock Tank Selection DD8 only ILLUSTRATED PARTS LIST See Separate Table of Contents List O O O 01 03 O O CO 11 11 12 12 12 13 13 14 15 15 15 15 15 15 15 19 19 23 24 24 24 24 25 1 1 GENERAL DESCRIPTION The machine door is counterbalanced and opens to provide easy access to the inside of the machine The machine can be easily changed from a straight thru to corner model by the simple movement of one track rail See Figure 1 1 If your machine is a single D8 and is to be used in a corner the right side must alway
32. SHGUARD RECOMMENDED WALL A WITH CORNER MOUNTED MACHINES ONLY 16 3 Min i A Loans pointed down 0 direction of tung MOOEL 0 8 DANN MANDLE BLAKESLEE x ELECT BOOSTER BLAKESLEE ELECT BOOSTER 418 Figure 2 5 Continued on next page SERVICE CONNECTION INFORMATION Dim from Service No re Fitting Function Floor Connection Inches 180 F Hot Tank Fill and 1 Water Inlet a Final Rinse 60 1 4 2 Electric Ne 358 15 Amps 113 60 1 O 1 1 8 Dia Hole 230 60 1 25 mps 208 60 3 3 8 Amps 230 60 3 1 9 Amps 460 60 3 2A Electric Tank Heater 12Amps 230 60 1 13 Amps 1 1 8 208 60 3 25 12 Amps 230 60 3 5 7 Amps 460 60 3 4 Gas Inlet 1 2 NPT Fem Gas Tank Heat 10 1 4 19 3 4 1 B Injector Steam 7 3 3 4 Fem Steam Tank Heat 10 Coil In Steam 8 1 2 Fem Steam Tank Heat 10 Coil Out 3 4 Tank Fill amp 5 3 4 Booster Inlet Blakeslee 10 2 Built in Booster mps 39 Amps 1 5 16 230 60 1 5 3 8 sn 208 60 3 ja 230 60 3 460 60 3 Tank requires 18 5 gallons of hot water to fill Final rinse requires maximum of 130 gals per hour of 140 hot water at 20 P S l Total steam requirement 25 165 cond hr at 20 P S l Gas burner flue not furnished on steam or electrically heated machines When gas heated machines are specified dimensions marked are increased by 2 50 mm Figure 2 5 Continued from previous pag
33. W 1 8132 W 1 7285 W 2 20917 W 1 7118 W 1 7007 W 1 7146 No Number W 0 20919 W 1 20916 W 0 20918 W 1 20895 FIG 6 14 DOOR LOCK ASSEMBLY DESCRIPTION COVER SCREW Rd Hd 10 24 X 3 8 lg SOLENOID NUT Hex 10 24 S S LOCKWASHER No 10 S S MOUNTING BASE SCREW Hex Hd 1 4 20 x 1 2 lg LOCKWASHER 1 4 NUT Hex 1 4 20 PIN 13 64 x 2 lg furn d w solenoid SPRING SHAFT STOP PIN DOOR BUMPER Used only with this door lock QTY REQD A L Ref 55 COMPLETE ASSEMBLY W 3 20910 FIG 6 15 MACHINE MOUNTED FINAL RINSE BOOSTER SINGLE D8 ONLY ITEM NO PARTNO 1 W 1 8360 2 W 1 8587 3 W 1 7617 4 See note 5 W 1 8836 6 W 2 20914 7 W 2 20878 TA W 1 8096 8 W 1 8000 9 W 1 16221 10 W 0 7768 11 W 1 8131 12 W 1 7210 13 W 1 12616 14 W 1 7743 15 W 1 8171 16 W 0 20840 17 W 1 8004 18 W 0 20841 19 W 2 20908 20 W 1 20912 21 W 3 20909 22 W 1 7012 23 W 1 7023 24 M 1 3571 FIG 6 15 MACHINE MOUNTED FINAL RINSE BOOSTER DESCRIPTION LOCKNUT Tiger Grip GASKET 1 2 CONNECTOR Str 1 2 Liquid Tight 1 2 12 lg Liquid Tight Conduit 45 ELBOW 1 2 Liquid Tight WIRING DIAGRAM Abbrev PLATE Power Requirement SCREW 4 40 x 1 4 12 Self tapping SCREW 6 32 x 1 4 Ig Rd Hd BRACKET Thermostat Mtg THERMOSTAT w Capillary SCREW 10 32 x 1 2 lg Rd Hd CONTACTOR 60 Amp 3 Pole NIPPLE 3 4 Conduit Insulated GASKET ASSY 3 4 COUPLE
34. a and if possible stacks of like items should be placed next to each other Racks can then be filled with like items when operator begins washing Some items will not readily stack such as coffee cups glasses soup bowls These items should be placed directly into racks so that they can be transported with a minimum of effort See figure 3 6 In racks these items also are not exposed to breakage Racks when filled should be placed in the build up area This organized orderly separation of tableware is essential to dishroom efficiency and reduced breakage THE BETTER ORGANIZED YOUR SOILED DISHTABLE THE FASTER YOUR ENTIRE OPERATION AND THE LESS YOUR BREAKAGE COSTS Silverware should be soaked in a sink or container to keep food particles from drying When ready for washing the Figure 3 5 Scrapping Dishes before Stacking Figure 3 6 Build up Area silverware should be placed either in a flat rack or vertical silverware holder and sent through the dishwasher NOTE When placing silver in flat racks do not overload the rack You should be able to see the bottom of the rack in many places after it is loaded IMPORTANT As much as possible keep soil from entering dishwashing machine This will reduce detergent consumption and will make the machine easier to clean 3 5 LOADING MACHINES All plates of the same size should be washed at the same time to eliminate sorting dishes at the clean end of the machine If possible
35. ange SOLENOID VALVE 3 4 115V SCREW 5 16 18 x 3 4 Hex Hd LOCKWASHER 5 16 Cd PI NUT 5 16 18 Cd PI VACUUM BREAKER See page 17 for repair kits ELBOW Street 3 4 90 Brass TUBE ASSY THERMOMETER ELBOW Reducer 3 4 1 2 90 Brass SCREW MICROSWITCH SCREW BRACKET Door Switch GASKET Upper Rinse LOCKWASHER S S NUT Hex5 16 18 JAM NUT HEX 1 2 20 UNF S S LOCKWASHER UPPER RINSE amp FILL LINE ASSY NOZZLE Upper Spray PIPE CAP 1 2 S S SLEEVE Rinse Line 1 8 N P T SO HD BRASS PIPE PLUG 1 4 TO 1 8 BRASS PIPE REDUCER 1 4 CLOSE NIPPLE 1 4 N P T BRASS TEE 3 4 BRASS CROSS DD8 only 3 4 x 4 1 2 BRASS NIPPLE DD8 only 3 4 BRASS NIPPLE DD8 only QTY REQD A R WN RO lt R 1 NR L NOR D A A O D BRR 37 DISCONTINUED 3 1 78 FIG 6 6 UPPER MANIFOLD amp WASH ARM 38 FIG 6 6 UPPER MANIFOLD amp WASH ARM ITEM PART NO DESCRIPTION QTY REQD NO 1 W 1 12574 NUT Hex 5 16 18 S S 2 2 W 1 7598 LOCKWASHER 5 16 S S 2 3 W 1 7621 SCREW Hex Hd 5 16 18 x 3 4 S S 2 4 W 3 13081 MANIFOLD ASSY Upper 1 5 W 1 17852 SPINDLE Upper Wash 1 6 W 3 17756 WASH ROTOR ASSY 1 7 W 1 20844 e BUSHING Used after 1 1 78 2 8 W 1 2519 e BUSHING Used before 1 1 78 1 9 W 1 8149 e SLEEVE Used before 1 1 78 1 10 W 1 2132 NUT ASSY Wash Arm 1 11 W 1 13118 WASHER 1 12 W 1 13117 e NUT 1 13 W 1 13559 SUPPLY PIPE Upper 1
36. box See figure 2 9 2 13 ELECTRICAL DETERGENT amp RINSE INJECTOR CONNECTIONS WARNING DISCONNECT ALL POWER BEFORE MAKING ANY ELECTRICAL CONNECTIONS Connect primary leads of detergent rinse injector transformer to F1 and F2 top side of fuse block See figure 2 15 page 10 POWER IS AVAILABLE AT THIS POINT DURING THE WASH CYCLE The voltage at this point is the same as the primary incoming machine voltage Customer s incoming power line provides fuse protection DO NOT connect detergent equipment to lines IT1 or IT2 or any other source This will defeat the fuse protection for the pump motor and VOID the machine WARRANTY Connect secondary leads of detergent injector transformer to dispensing equipment A connection tap is provided for fresh water for detergent and final rinse equipment see figure 2 12 REMOVE PLUG FOR DETERGENT FRESH WATER SUPPLY REMOVE PLUG FOR Figure 2 12 FINAL RINSE ADDITIVE Figure 2 13 Figure 2 14 CONNECTION Location of Detergent Location of Detergent Probe Hole After 6 1 81 Probe Hole Before 6 1 81 Figure 2 12 2 13 and 2 14 is not applicable for current production models A connection tap is provided for the injection of final rinse additive Connect secondary leads of detergent injector transformer to see figure 2 12 dispensing equipment A detergent equipment control box knockout for 1 2 conduit is located next to the incoming power knockout There is also
37. e CONTROL PANE CONTROL PANEL 4 mn CLEAR 6 4 min lt CLEAR FOR 94 0 MOOG DE SERVICE CONNECTION INFORMATION 008 DIM SERVICE FITT FUNCTION FROM NNECTION 180 MIN TANKS FILL INLET AND FINAL 60 1 4 RINSE INLET 25 ELECTRIC 1 1 8 CONTROL PANEL AND 2 MOTORS 30 AMPS 115 60 1 15AMPS 230 60 1 8 AMPS 208 60 3 7 2 AMPS 230 60 3 3 6 AMPS 460 60 3 ELECTRIC 2 TANK HEATERS TOTAL 5 0 KW 25 24 AMPS 230 60 1 26 AMPS 208 60 3 24 AMPS 230 60 3 11 4 AMPS 460 60 3 GAS INLET rod GAS TANK HEAT GPS FLUE 19 3 4 GPS BURNER VENT DRAINS CONNECTS TO WASTE 3 4 TANK HEAT INJECTOR 3 4 TANK HEAT COIL IN 10 STEAM 3 4 TANK HEAT COIL OUT TANKS REQUIRE 37 0 GAL S OF HOT WATER TO FILL TOTAL STEAM REQUIREMENT 50 LBS COND HR AT FINAL RINSE REQUIRES MAX OF 260 GAL S PER HOUR 20 P S OF 140 HOT WATER Figure 2 6 DOS Rough In Information C 5 MOTOR ROTATION ARROW DRAIN VALVE HANDLE DRAIN LINE SEWER Figure 2 8 Drain Installation Figure 2 7 Motor Rotation Checking THERMOSTAT TURN SCREW CLOCKWISE TO INCREASE TEMPERATURE COUNTERCLOCKWISE TO DECREASE TEMPERATURE PONER F2 FI T 7 als La ki 12 13 EE A 2 K THERMOSTAT FOR DD 8 2ND TANK LOCATED IN 2ND CONTROL BOX Figure 2 9 Power Connections N ee Natural gas valve has a pressure regula
38. e is 120 F instead of 140 F the booster will not produce the required 180 F final rinse water without raising the steam flow pressure to 7 5 pounds The booster sizing chart is included here to assist you in making sure adequate supply conditions are available for effective booster operation SOLENOID PRESSURE REDUCING GAUGE COCK LINE STRAINER 24 MAXIMUM FROM END BOOSTER CAN BE MOUNTED ON EITHER SIDE OF MACHINE 140 HOT WATER CONNECTION 12 3 8 FROM FLOOR 6 3 8 FROM CENTER LINE 1 SUPPLY LINE RECOMMENDED FOR DD8 CONDENSATE LINE ON FRONT SIDE 10 FROM FLOOR 1 FROM CENTER LINE STEAM CONNECTION 13 1 8 FROM FLOOR 5 5 8 FROM CENTER LINE Figure 5 2 Steam Booster Installation 20 Previous Page TABLE 5 1 STEAM BOOSTER SIZING CHART Gallons Per Hour 180 F Steam Rinse with supply water at temperatures showr Pressure C1 BOOSTER 100 F 120 F 140 F 150 00 8 PLUMBING TABLE 5 2 D8 FINAL RINSE WATER CONSUMPTION Maximum Amount of Final Rinse Water Consumed per Cycle 20 Lbs Flow Pressure is 1 3 gallons Flow rate is 1 4 Gallons Per Minute Maximum Amount of Cycles 55 Per Hour will consume 72 gallons of water per hour TABLE5 3 DD8 FINAL RINSE WATER CONSUMPTION Maximum amount of final rinse water consumed per cycle 20 lbs flow pressure is 2 6 gallons flow rate is 2 8 gallons per minute Maximum amount of cycles 55 per hour will consume 144 gallon
39. e on wash tank thermometer figure 2 12 page 8 If turning thermostat clockwise does not start the heating cycle check for the following a Defective thermostat b Defective Gas valve c Steam solenoid or heating contactor whichever is on your machine d Dirty line strainer e Steam pressure too low should be 10 Ibs min f Defective steam trap steam coil heated machine only NOTE The heater is designed to maintain a temperature only Door of dishwasher should always remain closed when machine is on but not being used WASH TANK WATER FOAMING 1 Wash tank water very dirty Change wash tank water 2 Poor pre scrapping procedure Scrap dishes better 3 Excessive protein being put into dishwasher 4 Improper detergent Check with detergent representative POOR WASHING RESULTS 1 Poor scrapping procedures Scrap dishes better 2 Scrap screens blocked with soil Empty screens 3 Machine water dirty or contaminated Change water 4 Wash tank water temperature too low See section 2 8 5 Detergent dispenser empty Fill dispenser 6 Pump impeller clogged Refer to para 2 5 pump motor 7 Wash pump running backwards Refer to para 2 5 for pump rotation 8 Wash rotor clogged and or not rotating Refer to para 4 4 on wash rotor 9 Water conditioner causing spotting Consult with detergent representative 16 10 Dishes or silver improperly racked Refer to para 3 4 for operating instructi
40. graph 5 8 To increase the flow pressure turn the screw clockwis e Tuming the screw counterclockwise will decrease the flow pressure 5 16 INSTALLATION Use the adjustable legs on the booster to level the unit Figure 5 3 indicates dimensions for the plumbing connections BOOSTER LOCATION Booster location with respect to the hot water supply and dishwashing machine is important for efficient booster operation Position the booster as close to these items as possible If the booster is positioned 20 feet or more from the dishwasher though the final rinse water is 180 F when it leaves the booster the exposed piping through which the water travels will cool the water The same situation applies to the booster hot water supply The booster cannot operate effectively with long distances of exposed piping PIPING CONNECTIONS The controls described in paragraph 5 12 are shipped as separate items Figure 5 3 indicates the proper sequence for connecting these items Use 3 4 inch N P T size fittings and pipe for D8 1 N P T for DD8 Include a shut off valve at the hot w ater inlet as indicated in the figure We recommend the hot water supply piping be wrapped with insulation material ELECTRICAL CONNECTIONS Connect control wires of the booster to wires No 2 and No 4 in the machine control panel as noted in wiring diagram Protect control wires in electrical conduit Connect the booster power wiring to a properly rated power supply
41. h as flexible waterproof conduit wire etc locally Following are the complete assemblies needed for tank heat conversion Natural Gas W 0 17966 L P Gas W 0 17967 Steam Injector W 3 12988 Steam Coil W 3 13129 Electric W 0 95377 NOTE Electric heat not available for 115 volt machines Additional conversion installation note When changing either to or from single to three phase electrical power the wash pump motor must be changed The motor protection fuses must also be changed See parts description in figure 6 11 and wiring diagram figure 15F 20 of Modular Dishwasher Service Manual When changing from 115 volts to 208 230 440 or 480 volts single or 3 phase a transformer must be added The motor protection fuses must also be changed see parts description in figure 6 11 and wiring diagram figure 15F 20 of Modular Dishwasher Service Manual 2 1 PLUMBING amp ELECTRICAL CONNECTIONS Various plumbing connections are tagged 180 water steam gas etc NOTE Installation must be made by qualified workmen observing all applicable Sanitary Safety amp Electrical Codes 2 2 LOCATION Place dishwasher in its proper location See figure 2 5 or 2 6 Maintain 34 1 4 3 4 height See figure 2 2 Level dishwasher by turning adjustable feet INITIAL SETTING OF DISHWASHER MUST BE LEVEL TO PERMIT HOOD TO OPEN AND CLOSE PROPERLY If one side of the door has an excessive gap after the dishwasher is leveled adjust
42. hut off valve at each inlet The water piping must be a minimum of 3 4 For D8 1 N P T for DD8 The steam pipe must be a minimum of 1 1 2 for a C1 booster Pipe sizes must be increased on runs over 50 ft The hot water inlet tee is 3 4 inch N P T The steam inlet strainer size is as follows Model C1 booster is 3 4 inch N P T Model C2 booster is 1 inch N P T We suggest supply pipes be wrapped with insulation material The condensate return is 1 2 inch N P T DD 8 VACUUM PLUMBING BREAKER VALVE Es e ety f re fen m TI br Y ir T id ii kym SS sass a n BACK OF D8 MACHINE DIMENSIONS FROM FLOOR ARE t1 DUE TO ADJUSTABLE LEGS NOTE The condensate return line must always be pitched down Condensate return lines that are level or run uphill require the addition of a condensate return pump 5 10 SUPPLY PRESSURE AND TEMPERATURE RE QUIREMENTS Booster output 180 F water is measured in gallons per hour gph The output requirement for a particular machine is the sum of final rinse water in gph To obtain a desired output inlet water temperature and steam supply pressure must correspond as indicated in the booster sizing chart For example the model C1 booster is capable of providing 250 gph at 20 pounds flow pressure of 180 F final rinse water when the inlet water temperature is 140 F and the flowing steam supply pressure is 5 pounds If inlet water temperatur
43. in the water supply and cleanliness of the washing operation 7 Final Rinse Water High Temperature Dishwashers Only Most frequent of all complaints in any dishwashing machine is that of poor final rinse It is the responsibility of the owner to provide 180 to 195 plus water at 15 25 lb flow pressure through clean unobstructed water lines If the machine has a factory equipped final rinse water booster the owner must supply the booster with a minimum of 140 temperature water 8 Electric Boosters and Garbage Disposals Although these units may have been purchased with the machine they are warranted by the individual manufacturer Consult the nearest factory authorized representative for these particular items 9 Overtime Charges All warranty work is performed during normal daytime working hours 8 AM 4 30 PM Monday through Friday If warranty is requested at other times the owner will be required to pay the overtime premium for all labor charges 10 Chemical Dispenser Low Temperature Dishwashers Only Replacement and lubrication of the blue hose used in the chlorine dispenser pump is a simple procedure and the owner s responsibility Refer to Owners Manual for further instructions Blakeslee Service Department SECTION 1 1 1 SECTION 2 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 2 13 SECTION 3 3 1 3 2 3 3 3 3A 3 4 3 5 3 6 3 7 SECTION 4 4 1 4 2 4 3 4 4 4 5 4 6 4 7
44. ing one of the front legs up or down will remedy this See figure 2 3 Do not make any service connections until machine is set and leveled and doors open and close properly 2 3 DISH TABLE Dish table should be lipped into the dishwasher See figure 2 4 Use silicone type sealer between dish tables and dishwasher Secure with stainless steel S S truss head screws 2 4 ELECTRICAL CONNECTIONS Check machine data plate before making any electrical connections Connections must agree with data plate figure 2 1 on machine A fused disconnect switch or circuit breaker not furnished MUST be installed in the electrical supply line for the dishwasher This service connection must meet all national and local electrical code require ments All connections are made at one common connection in control box See figure 2 9 Control box cover is hinged Remove the six 1 4 x 20 screws and swing cover open to the right See figure 2 9 BLAKESLEE POWER REQUIREMENT Ee i om ee 1 BRANCH CIRCUIT PROTECTION REQUIREMENT SUPPLY CIRCUIT CONDUCTORS MINIMUM AMPACITY CIRCUIT BREAKERS MAXIMUM AMPACITY TIME DELAY FUSESUMAXIMUM AMPACITY w 2 20878 Figure 2 1 Data Plate SECTION 2 INSTALLATION EXCESSIVE GAP ON LEFT RAISE LEFT FRONT LEG ANO DOOR WILL SHIFT TO THE LEFT EXCESSIVE GAP ON RIGHT RAISE RIGHT FRONT LEG AND DOOR WILL SHIFT TO THE RIGHT 34 1 4 3 4 Figure 2 2 Leve
45. ispenser has been added by others c Close the counterbalanced three way door d Fill dishwasher tank with water Flip HEAT FILL switch item 4 Figure 3 3 to FILL down position Leave it in this position for 3 minutes to fill tank Flip HEAT FILL switch to ON up position to turn on tank heater e Observe wash tank thermometer item 6 figure 3 3 It should register between 150 160 F If after a short period of time this temperature is not attained adjust thermostat in control box figure 2 9 SCRAP NOTE ADJUSTING THE THERMOSTAT IS A USER SCREEN FUNCTION AND IS NOT COVERED UNDER WARRANTY 3 2 AUTO TANK FILL Optional If machine is equipped with optional automatic tank fill machine will start filling with water automatically when machine HEAT FILL switch is flipped ON up Wait approximately 3 minutes for machine to fill NOTE This option will automatically keep water to within 3 inches of Sy STANDPIPE N Figure 3 3 Standard Front Panel and Thermometer Single and Double D8 E STANDPIPE 1 Red Power Light 5 Cycle Start Push Button y GUIDE 2 Amber Cycle Light Switch 3 Fuse 6 Thermometer STANDPIPE 4 Heat On Manual Fill and SCREEN Rinse Switch Figure 3 1 Standpipe Guide 3 3 TIMED TANK FILL Optional HEAT FILL switch for this option is a spring return type To activate Timed Tank Fill flip HEAT FILL switch to FILL position and hold for 2 seconds Switch will return to OFF
46. l rinse water consumption Table 5 3 Similarly the hot water supply pressure must be maintained between 15 and 25 psi The pressure regulator is adjustable paragraph 5 15 It may be that the booster is too small and a larger booster should be installed HOT WATER OUTLET LINE The outlet piping connects to a strainer gauge cock and solenoid valve shown in figure 5 3 Periodic cleaning of the strainer is recommended The gauge cock is provided for use as described in paragraph 5 5 The thermostat is adjustable refer to paragraph 5 15 5 14 CLEANING LINE STRAINER The water outlet line strainer protects the solenoid valve from dirt Every month clean the strainer as described in paragraph 5 7 Be sure water supply is turned off and pipe are cool When making a new installation the sediment and mineral deposits in the existing lines will probably break loose and clog the dishwasher line strainer Clean the strainer daily until this condition clears up 5 15 ADJUSTMENTS THERMOSTAT The thermostat is pre set at factory and should require no further adjustment Should minor adjustment be required remove cover located on lower right hand corner of front of booster and turn thermostat knob clockwise to increase temperature and counter clockwise to decrease PRESSURE REGULATOR If the hot water supply flow pressure is not between 15 and 25 psi adjust the pressure regulator observing the following Same as steam booster adjustment para
47. let is required the 3 4 x 8 brass pipe must be replaced with a 3 4 x 24 brass pipe Customer should 3 4 8 BRASS PIPE SOLENOID VALVE PRESSURE GAGE PRESSURE REGULATOR Figure 5 4 Machine Mounted Electric Booster Installation supply the 24 pipe Outlet line from the booster must go directly from the top of the booster to the final rinse vacuum breaker See figure 5 4 DO NOT UNDER ANY CIRCUM STANCES BREAK INTO THIS LINE AND INSTALL A VALVE PRESSURE RELIEF VALVE ETC THIS LINE MUST BE LEFT OPEN TO THE ATMOSPHERE Detergent representatives can tap into the final rinse line to install rinse additives providing they do not block or restrict the water flow The unit comes complete with 110V electrical control wiring It is necessary to supply and connect a separate 208 240 volt or 3 phase to the booster control box for the heating elements Refer to rating plate on control box for exact requirements Be sure this circuit is fused properly NOTE When installing a new machine DO NOT turn on electrical power to booster until the dishwasher has filled with water and operated through one cycle This will assure that the booster is full of water and purged of air CONTROLS The inlet plumbing includes a pressure regulator pressure gauge and line strainer The temperature gauge is installed on top of the machine in the final rinse line The pressure and temperature gauges should be checked periodically during final ri
48. ling Diagram TABLE WASHER HOOD LOCKWASHERS AND TAUSS HEAD SCREWS 5 5 NUTS Figure 2 3 Attaching Table to Tank NOTE If machine has optional electrical booster refer to section 5 for separate electrical connection information CAUTION Before attempting to connect electrical service connections be sure incoming power is turned off 2 5 PUMP ROTATION The pump motor s must rotate in a clockwise direction when facing front of dishwasher An arrow on the side of the motor s see figure 2 7 indicates direction motor shaft s must turn for correct washing action This rotation is factory checked but must be rechecked before using the machine NOTE Check both motors on Double D8 NOTE ALWAYS DISCONNECT ALL POWER GOING TO DISHWASHER BEFORE MAKING ANY OF THESE CHANGES 2 6 FILL RINSE Final rinse water will be used to fill dishwasher Therefore this supply line should have a water temperature of 180 195 F and a flow pressure of 15 to 25 P S I at the dishwasher NOTE If machine is equipped with either a machine mounted booster or a remote mounted booster water supply temperature must be 140 F minimum If the supply pressure is below 15 P S I an optional booster pump will be required If the supply pressure is over 25 P S l a pressure reducing valve optional will be required Connect a 3 4 pipe to the line strainer Figure 2 4 If the run is over 20 ft use a larger pipe to insure proper flow press
49. ll the tank Any excess water will flow out the standpipe and down the drain If the timed fill button is actuated when the machine is full or nearly full the fill water will go out the skimmer of the standpipe down the drain and be wasted 5 22 DOOR SAFETY LOCK This lock is located on the top rear of the counterbalanced three way door See figure 6 14 Purpose of this device is to prevent the door from being opened when the machine is in operation The device consists of an electrical solenoid and mechanical link The solenoid is energized during an entire automatic cycle When energized the solenoid pulls a stop pin over the top of the door bumper preventing the door from being raised or opened 5 23 TANK SELECTION DD8 Only See Figure 3 3A This option enables either left right or both tanks to be operated during each automatic or manual cycle lt enables an operator to cycle only one tank during non rush periods In most cases it also enables the machine to operate on one tank even if the second tank is inoperable SECTION 6 ILLUSTRATED PARTS LIST CONTENTS Figure Page 6 1 Base Tank 8 Tracks 24 6 2 Standpipe Pump amp Drain 26 6 3 Door amp Lifting Mechanism 28 6 4 Lower Rinse 8 Wash Arms 30 6 5 Upper Rinse amp Fill Plumbing 32 6 6 Upper Manifold 8 Wash Arm 34 6 7 Gas Burner Assembly 36 6 8 Steam Coil Assembly 38 6 9 Steam Injector Assembly 40 6 10 Electric Tank Heat 42 6 11 Electrical Control Box 44 612
50. m of 10 Ibs flow pressure required a Defective steam trap c Condensate line not level or going down POOR FINAL RINSE RESULTS 1 Water supply pressure too low must be 15 25 Ibs flow pressure See para 2 6 2 DD8 supply line size too small Flow rate for DD8 is 18 GPM Incoming water supply line should be 1 inside diameter Final rinse temperature too low See troubleshooting NO FINAL RINSE TEMPERATURE High time content or other foreign material in the water High lime content or other foreign material will cause severe spotting Consult your detergent representative for possible remedies Final rinse nozzles clogged See para 4 5 on cleaning final rinse nozzles Dirty wash water in dishwasher Clean dishwasher DISHWASHER TANK S NOT HOLDING WATER 1 3 Drain valve s open or not fully closed Turn valve s clockwise until it hits a positive stop Foreign material around drain seat preventing positive sealing of drain plug Clean dishwasher and drain screen See para 3 7 Worn or damaged standpipe drain plug Clean or replace DISHWASHER WILL NOT DRAIN 1 Clogged drain screen Empty dishwasher by bailing water out of wash tank with pan etc Clean screen 2 Customer s drain line plugged or too small Consult your local plumber VACUUM BREAKER LEAKING 1 Deposits on the float will prevent operation of the vacuum breaker Shut off water supply and remove the threaded top cap 4 figu
51. nse operation If the temperature falls below 180 F this is an indication that either the thermostat is set too low or that the incoming water temperature is below 140 F see Electric Booster Recovery Chart Table 5 4 Final rinse flow pressure should be between 15 to 25 IDS preferably 20 lbs Adjust pressure regulator by loosening hex head bolt and turning square head shaft clockw ise to increase pressure counterclockwise to decrease Turn gauge cock located below pressure gauge off when not observing gauge The thermostat for the machine mounted booster is located in the booster control box See figure 6 15 item 9 Turn thermostat clockwise to increase temperature counterclock wise to decrease temperature The High Limit cut off is located in the booster tank see figure 6 15 item 18 Its function is to turn off the booster in the event it overheats When this occurs manually reset the unit as follows 1 Turn off all power to machine 2 Remove screws from front of booster see figure 6 15 3 Push in red button of the High Limit Cut off in See figure 4 Turn power back on Turn machine on Wait a few minutes until w ater in booster gets hot 5 Operate dishwasher and check final rinse temperature and pressure 23 6 Replace front cover 5 19 Cleaning Clean line strainer figure 5 4 weekly CAUTION Be sure water line coming to booster is off and booster is off After cleaning line strainer DO NOT turn
52. ons 11 Poor final rinse Refer to para 2 6 NO FINAL RINSE Line strainer dirty or sticking final rinse solenoid valve For proper operation the solenoid valve must be free of foreign material at the valve seat A critical period for a valve is soon after installation Pipe compound or metal shavings from the installation may lodge at the valve seat and prevent the valve from completely opening or closing A dirty line strainer see figure 2 4 will also allow foreign material to pass 1 REMEDY Shut off the water supply and using a wrench unscrew the end of the line strainer and drain Clean and replace line strainer and cap Operate final rinse If final rinse still does not operate turn water supply off again and unscrew bonnet of solenoid valve and clean If after doing the above the final rinse continues to malfunction call your Blakeslee service technician INSUFFICIENT RINSE TEMPERATURE Final Rinse 1 Final rinse booster turned off remote mounted booster only 2 Separate electrical supply to electric booster turned off 3 Booster inoperative or booster thermostat set too low 4 Adjust thermostat refer to figure 2 9 Optional equipment see section on boosters 5 Water temperature of building supply water to booster too low 6 Water supply line pressure from booster to dishwasher too low or not insulated to prevent heat loss 7 Steam boosters only a Insufficient steam supply to booster minimu
53. properly fused and properly protected in conduit TABLE5 4 ELECTRIC BOOSTER TEMPERATURE RECOVERY TABLE IN GALLONS PER HOUR RISE 05m 72 ele 39 36 33 37 1t2kw 123 99 82 70 62 55 49 45 41 38 35 DEGREE 13 5 kw 185 11 95 70 62 55 so 46 ew 128 88 77 66 amp 5 51 4 246 197 164 123 109 99 90 82 76 70 22 5 17 MACHINE MOUNTED BOOSTER Available on D8 Only A machine mounted booster is bolted under the left front of the D8 machine This unit uses electric heating elements to raise the temperature of the hot water from 140 F to 180 195 F When installing the D8 be sure not to obstruct the front of the booster or the control box located next to the booster so that these components can be serviced 5 18 Installation This unit is a low pressure semi closed heater tank One end must always be open to the atmosphere During installation of machine do not connect electrical power to booster until plumbing to booster is completed Hot water inlet pressure line must always connect to line strainer pressure regulator gauge and solenoid valve see figure 5 4 which is supplied with the unit Water inlet plumbing can be changed from left to right as desired Inlet plumbing on a standard machine enters from the left when facing front of machine as shown in figure 5 4 If right hand in
54. re 4 1 Lift off the 1 GASKET 2 O RING 3 FLOAT 4 TOP CAP 5 COLLAR Figure 4 1 Vacuum Breaker collar 5 with the 0 ring 2 then remove the gasket 1 Withdraw the float 3 and clean thoroughly At reassembly make sure the 0 ring is not damaged and is properly seated in its groove Genuine Blakeslee Repair Kits that are available for these vacuum breakers W 1 12357 Sloan Valve W 1 12351 Febco Valve W 1 14835 Consolidated Valve Please specify if your valve is manufactured by Sloan or Febco You will find the name on the cap 17 5 1 GENERAL Extra equipment for the D8 dishwashing machine available from Blakeslee includes hot water boosters automatic tank fill timed fill etc This section contains information regarding proper use and maintenance of this equipment 5 2 HOT WATER BOOSTERS The hot water booster is used to raise the final rinse water temperature to 180 F 195 F which is the temperature recommended by the National Sanitation Foundation and required by many health departments To attain this temperature the water supply to the booster must be maintained at 140 F Three types of boosters are available 1 Remote mounted electric 2 steam boosters and 3 machine mounted electric boosters D8 only NOTE If the temperature of the incoming water is less than 140 F an oversize electric booster will probably be necessary 5 3 Steam Hot Water Booster Model CD 5 4 STEAM
55. s be positioned against one wall see Figure 2 5 DD8 machines if used in a corner should have been ordered so that the operating controls are placed in the control box of the tank that is farthest from the corner Left tank or right tank 1 2 DOOR SAFETY SWITCH All machines are equipped with a door safety switch See Figure 1 2 The machine will not operate when door is open Ifthe door is accidentally opened during an automatic cycle the machine operation will stop Some models may be equipped with Optional Door Safety Lock See para 5 22 for description of lock When the door is closed the operator must press the start button again to finish the wash cycle Ifthe door was opened when the machine was in the rinse cycle the machine will automatically finish the rinse cycle when the door is closed again HERE TO MAKE CORNER FRONT MODEL or MACHINE Figure 1 1 Relocating Track to Convert Straight thru to Corner Model RELOCATED SECTION 1 DESCRIPTION 1 3 MOTOR Machine is equipped with a 1 HP 1725 RPM motor D8 s have one DD8 s have 2 1 4 CONTROL CIRCUIT All machines are supplied with a 115 volt A C control circuit 1 5 VACUUM BREAKER The fill line has a vacuum breaker installed in it to prevent any back flow of water into the fresh water supply line If a negative pressure develops in the supply line the loss of pressure permits a check valve inside the breaker to drop sealing the orifice while at
56. s of water per hour nen H 8a Ls A ED ds ue s IR dH HD E i E E i I di de gt 1 24 MAXIMUM eS Li VI FROM END BACK OF 08 MACHINE BOOSTER EM DRAIN M VALVE Va 140 HOT n TS WATER INLET A lw 8 9 5 8 FROM FLOOR gt 1 SS Tt J va A SHUT OFF PRESSURE VALVE REDUCING VALVE IIS FLOOR TEMPERATURE PRESSURE PRESSURE RELIEF VALVE GAUGE Figure 5 3 Remote Electric Booster Installation 21 5 11 Remote Electric Hot Water Booster This electric hot water booster uses electric heating elements to heat the final rinse water The elements are controlled by a thermostat When installing make provisions for future service especially access to front cover assembly Whenever possible connect the machine using pipe unions 5 12 HOT WATER INLET LINE The inlet piping includes a pressure regulator pressure temperature gauge and a relief valve The pressure relief valve is preset and requires no further adjustment The pressure temperature gauge should be observed periodically during final rinse operation If the temperature indication is below 140 F the hot water source may not be hot enough for the booster to be effective the temperature of the hot water entering the booster may have to be raised to 140 F NOTE Refer to electric hot water boosters water temperature recovery Table 5 4 and to D8 final rinse water consumption Table 5 2 or DD8 fina
57. stopping the ma chine d Manual Operation Wash Cycle The only time manual wash is necessary is because of a timer or some other electrical failure Close the hooded door flip HEAT FILL switch to ON depress and hold START button Minimum wash time is 45 seconds Rinse On some rare occasion it may be desirable to operate the rinse cycle longer than programmed in the timer Simply flip the HEAT FILL switch to FILL Machine will rinse as long as the switch remains in the FILL position Not applicable with machine equipped with Timed Tank Fill Optional If the machine timer has failed and the machine is being operated manually the ware must be rinsed for a minimum of 12 seconds after a normal wash cycle Figure 3 7 View of Racks with Door Raised DD8 13 3 7 SHUT DOWN and CLEANING a Turn off main power switch b Flip HEAT FILL switch to OFF position c Drain machine by turning drain valve counterclockwise as far as it will go figure 2 8 Raise washer door d Clean your dishtables and rinse in fresh water Be sure to leave scrap screens in machine while doing this e REMOVE scrap screens empty them and clean with a scrub brush in sink Place on dishtable DO NOT hit sides of scrap screens on trash containers f Inspect Revolving Wash Rotors for blockage of any opening and ease of rotation Remove and clean if required see para 4 4 9 Lift retainer on stand pipe guide figure 3 1 14
58. tor for minor adjustment L P Gas pressure must be regulated by the customer s pressure regulator PRESSURE REGULATOR ADJUSTMENT Beneath Screw 5306 PRESSURE LP GAS REGULATOR NATURAL GAS LITE RITE GAS COCK MANUAL KNOB BOSS MODEL WITH STEP OPENING v5307 _ PILOT GAS OUTLET T PRESSURE TAPPING DIRECTLY BENEATH PILOT FLOW ADJUSTING SCREW BENEATH COVER SCREW Figure 2 10 Gas Control Valve BEST LIGHTING PROCEDURE Slightly depress control knob and turn clockwise to OFF Wait 5 minutes for all unburned gas to vent REMEMBER that LP gas does not vent upward naturally Therefore if you have been unsuccessful in lighting the pilot within a short period of time the area must be exhausted with a fan or equivalent to blow out L P gas before attempting to relight the pilot PILOTSTAT POWER UNIT 2 the control knob to PILOT depress it completely and light the pilot burner The knob must be held down about 1 minute before the pilot burner will stay lit after releasing the knob 3 Turn the knob to ON and set the thermostat located in control box for desired wash tank temperature 150 160 F CAUTION DO NOT TURN GAS HEAT ON UNTIL WASH TANK IS FILLED WITH WATER NOTE Main burner is equipped with a non adjustable orifice 0 052 for L P gas and 0 078 for Natural gas PILOT FLAME ADJUSTMENT The pilot flame should envelop 3 8 to 1 2 inch of the tip of the thermocouple figure 2 11
59. truction into the rinse arm then unscrew the end plugs and flush out the tubes by operating the rinse The lower rinse arm may be lifted straight off the bearing pin and thrust washer assembly c The upper final rinse nozzles can be cleaned with a wire brush and by inserting the end of a paper clip thru the nozzle Then remove the 1 2 pipe cap at the end of the final rinse line and flush out the line item 28 figure 6 5 4 6 PUMP MOTOR OVERLOAD PROTECTION a Wash Motor s Wash Motor protection is provided by Slow Blow type cartridge fuses In the event a foreign article jams the pump impeller the motor will draw an excessive amount of current and open blow the fuse s After clearing the foreign article from the pump the fuse s must be replaced before the pump motor will operate WARNING SEE FIGURE 6 11 ITEM 29 FOR LOCA TION OF FUSES SECTION 4 MAINTENANCE amp LUBRICATION IMPORTANT An open blown fuse must always be replaced with the same size and type of fuse s INCREASING THE FUSE SIZE OR RATING WILL ELIMINATE THE MOTOR PROTECTION AND VOID THE MACHINE MOTOR WARRANTY Refer to figure 6 11 items 1 thru 3A for the proper fuse size It is suggested that spare fuses be purchased and kept on hand These fuses can be obtained from your Blakeslee parts distributor or authorized service agency Refer to the authorized service distributor and service agency listing booklet that was packaged with the machine for the one
60. ure CAUTION Before attempting to connect electrical service connections be sure incoming power is turned off 2 7 DRAINS Connect the tank drain s figure 2 5 or 2 6 to the sew er connection using 2 pipe figure 2 8 Because of the hot water that is used in dishwashers grease traps are usually not very effective If a grease trap is required it must be installed below the drain line and have a capacity of 40 gallons per minute LINE STRAINER 2 8 HEATING SYSTEMS Refer to Figs 2 6 and 2 7 For Installation Information 2 9 ELECTRIC HEATER Machines that are electrically heated are available in 208 240 or 440 480 volts single or three phase only They are pre wired at the factory and only one common connection is necessary LI and L2 for single phase L1 L2 and L3 for three phase See figure 2 9 Additional instructions are inside the control box Be sure wire size is adequate to carry entire amperage toad The temperature is controlled by the thermostat located in the control box 2 10 GAS HEATER Check tag attached to gas valve for type of gas L P or Natural to be used with the equipment NOTE If tag is missing Natural or L P gas can be determined by checking the gas control valve Natural gas valve has a pressure regulator L P gas does not See figure 2 10 Check that all fittings are tight Connect gas supply to control valve conforming to all local codes Figure 2 4 TOP VIEW OF MACHINE SPLA
Download Pdf Manuals
Related Search