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5.0  PREVENTIVE MAINTENANCE 

The machine should be inspected 

         approximately once a month.  The 
         following steps will prevent many 
         costly repairs. 

         1.  Check that Operator Procedures 
              have been followed. 
         2.  Inspect spay arm hub (1) for  
              tightness and spray arm for free 
              rotation (See Section 7.2.0). 
         3.  Assemble machine and check for 
              distortion of sheet metal parts,  
              ease of assembly and proper 
              operation of carousel and  
              latch (2).  Check for proper gap 
              between carousel and splash  
              guards (See Section 7.1.1). 
         4.  Using manual fill switch (3), check 
              fill rate and water level. 
         5.  During the machine cycle, check 
               the following: 
               a. Leakage at vacuum breaker  
                   or cabinet. 
               b. Timer for proper operation. 
               c. Operation and flow of chemical 
                   pumps. 
               d. Operation of pilot lights and  
                   switches. 
           6.  Remove control box cover (4)  
                and check the following: 
                a. Cycle counter and drive tube. 
                b. Chemical pumps and rotors  
                    (lubricate if required). 
                c. Squeeze tubes. 
                d. Chemical intake and  
                    discharge tubes. 
                e. Timer and switches. 
                f. Wiring for loose connections. 
           7.  Inspect door hinges and latch.

                                         

                                                                                    

Total Restaurant Supply - https://totalsupply1.com - Toll Free 1-800-944-9304 - Local 507-288-9454

2940 Hwy 14 W, Rochester, MN 55901

Summary of Contents for ASQ

Page 1: ...L 900 Blake Street Edwardsville Kansas 66111 913 422 3700 05 08 American Dish Service ADS MODEL ASQ GLASSWASHER Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 2: ...and Safety requirements Failure to install operate and maintain the machine in this manner will void the ADS Warranty ADS assumes no liability or control over the installation maintenance service or operation of the equipment Product failure due to improper installation maintenance and operation is not covered under the ADS Warranty WARNING During the operation of all dishmachines chemicals high v...

Page 3: ...DURE 3 0 INSTALLATION 4 0 CHEMICALS 5 0 PREVENTIVE MAINTENANCE 6 0 TROUBLESHOOTING 7 0 REPAIR PROCEDURES 8 0 REPLACEMENT PARTS Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 4: ...ll and the recirculating pump starts for the pumped rinse Chlorine based sanitizing chemicals are introduced during the rinse When the cycle is complete the rinse water remains in the machine to serve as wash water for the following load The rack is manually indexed bringing freshly washed glasses to the front compartment and taking soiled glassware into the wash compartment When the cycle start b...

Page 5: ...eck the water temperature 2 If it has not reached 120 F 49 C then press the cycle start button on the front of the machine Red Repeat this procedure until water is at the proper temperature 6 Load the first glasses into the left hand side of the carousel Unlatch and rotate the carousel 1 3 revolution 7 Press the cycle start button Red 8 Subsequent loads of soiled glasses may be placed on the left ...

Page 6: ...forward 4 Remove the splash shields 2 on either side of the carousel pivot by pulling up at the center and sliding inward 5 Remove the spray arm 3 by lifting it off the pivot 6 Remove the scrap screen 4 and dispose of accumulated debris 7 Thoroughly clean the inside of the sump and drain pan as well as all removed parts 8 Clean the spray arm 9 Reassemble in reverse order 10 Refill with water Total...

Page 7: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 8: ...able of supplying 140 F 60 C water with a recovery rate of 50 GPH Connect tail piece 3 to drain Place chemical suction tubes in their proper containers RED DETERGENT GREEN SANITIZER BLUE RINSE AID 3 1 START UP Perform the following start up procedures This should be done by a qualified service representative 1 Check voltage rating on name plate 4 and confirm that electrical supply is correct 2 Vis...

Page 9: ...hemicals are metered in the appropriate quantities and that glasses are clean 7 Re check for leakage at plumbing or cabinet 8 Confer with owner to insure that he understands the operation and is satisfied with the start up 3 2 WARRANTY Record Model Serial and other necessary information on Warranty Card and forward to AMERICAN DISH SERVICE 900 BLAKE STREET EDWARDSVILLE KS 66111 3820 Total Restaura...

Page 10: ...e matter The detergent selected must be designed for low temperature dishwashing Always use established brands The proper quantity of detergent may vary over a wide range and depends on the following factors 1 Water hardness 2 Type and amount of grease 3 Length of time the dishes stand 4 Iron content of water 5 Detergent formulation For this reason your chemical distributor should be consulted to ...

Page 11: ...he rinse water to run off in sheets rather than collect in droplets This exposes more water surface to the air which allows the glasses to dry faster and prevents spot formation The optimum amount of rinse aid varies depending on many of the same factors that affect detergent usage Consult your chemical supplier and use nationally recognized brands Total Restaurant Supply https totalsupply1 com To...

Page 12: ...e Section 7 1 1 4 Using manual fill switch 3 check fill rate and water level 5 During the machine cycle check the following a Leakage at vacuum breaker or cabinet b Timer for proper operation c Operation and flow of chemical pumps d Operation of pilot lights and switches 6 Remove control box cover 4 and check the following a Cycle counter and drive tube b Chemical pumps and rotors lubricate if req...

Page 13: ...erate Rinse Aid Pump Will Not Stop Chemical Does Not Flow Heater Will Not Shut Off Heater Will Not Operate Fill Water Will Not Stop Machine Does Not Fill Water Leaks From Vacuum Breaker Spray Arm Does Not Spin Properly Glasses Not Clean But Machine Operates Excessive Foaming DIAGRAMS Electrical Component Identification Interconnection Diagram with Chemical Alert Ladder Diagram with Chemical Alert ...

Page 14: ...o use the troubleshooting charts find the chart which describes the problem best in the upper left hand corner A series of questions is asked and should be answered YES or NO This answer leads to the next question until the problem is isolated and a repair is described When the electrical control system is involved a portion of the circuit diagram is included on the chart to assist in understandin...

Page 15: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 16: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 17: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 18: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 19: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 20: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 21: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 22: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 23: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 24: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 25: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 26: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 27: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 28: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 29: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 30: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 31: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 32: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 33: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 34: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 35: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 36: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 37: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 38: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 39: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 40: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 41: ...g Relay 7 4 6 Chemical Pump Replacement 7 4 7 Heater Replacement 7 4 8 Thermostat Replacement 7 4 9 Float Switch Replacement 7 4 10 Power or Cycle Start Switch Repair 7 4 11 Cleaning Flow Indicator 7 4 12 Flow Indicator Replacement 7 5 FRESH WATER PLUMBING 7 5 1 Clean Replace Strainer Screen 7 5 2 Replace Shut Off Valve Packing 7 5 3 Service Solenoid Valve Diaphragm 7 5 4 Replace Solenoid Valve Co...

Page 42: ... sub assembly is discussed with respect to its construction and operation Before attempting any repair maintenance personnel should be thoroughly familiar with the construction and operation of the equipment and should be certain that the diagnosis is correct Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 43: ... left or right On some machines shims may be used to position the pivot front to rear A latching mechanism maintains position of the carousel 7 1 1 CAROUSEL ADJUSTMENT See Figure 7 1 1 Alignment of the carousel is critical to proper operation and sealing of the wash compartment This alignment is made at the factory but if the machine is damaged or a new hood is installed this alignment could be al...

Page 44: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 45: ...rousel 7 1 2 HEIGHT ADJUSTMENT See Figure 7 1 2 1 Place level 1 on top of machine in both front back and side side directions to determine if machine is out of level and in which direction 2 Adjust level by turning lower portion of bullet feet 2 with an open end crescent wrench Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 559...

Page 46: ...SURE CHECK See Figure 7 2 1 1 Install special pressure fitting 1 on one end of lower spray arm 2 and attach pressure gauge which reads 0 20 PSI 2 Close doors and start machine 3 Record pressure during wash portion of cycle If pressure fluctuates record maximum and minimum pressure 4 Normal pressure may range from 8 PSI 5600 KG M2 to 12 PSI 8400 KG M2 If pressure is less than 8 PSI 5600 KG M2 or fl...

Page 47: ...ring for scoring or excessive wear and replace if necessary 3 Inspect spray arm hub for wear or scoring and jets for wear 4 Replace spray arm as required Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 48: ...gs are energized for approximately second when the motor is first started to initiate rotation in the proper direction Once the motor is at operating speed the starting winding is de energized by the motor start relay and the main winding continues to rotate the motor in either the forward or reverse Motor burn outs may be caused by failure of the motor start relay or a loose connection in the mot...

Page 49: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 50: ...ted properly 8 Before energizing machine connect a neon test light across the two lower terminals of the motor starting relay 9 Press the Power On button and Cycle Start button the neon test light should go out as soon as the main motor relay is energized It will remain out for approximately second and then light again If this does not occur IMMEDIATELY shut off power to the machine Check the moto...

Page 51: ...id Valve which supplies fresh water to the machine Its cam is adjustable in order to control the starting point of the purge cycle and the water level Switches 5 LS5 6 LS6 and 7 LS7 control the detergent RED sanitizer GREEN and rinse aid BLUE metering pumps respectively The cams which operate these switches are also adjustable R1 the Instant Start Relay 2 supplies power to the timer and pump motor...

Page 52: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 53: ...e right side of the cam sets the point at which the solenoid valve opens or the chemical pump starts The left side sets the point at which the solenoid valve closes or chemical pump stops Adjustment of the left side will determine the length of time the solenoid valve is open or the chemical pump operates and thus controls the amount of water or chemical introduced into the machine Cams are adjust...

Page 54: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 55: ...start relay 5 2 Remove two screws and nuts which attach the motor relay to the cabinet side 3 Install the new motor relay and attach wires 7 4 5 REPLACEMENT OF START WINDING RELAY 6 1 Remove the two screws which hold the relay bracket to the timer cabinet 2 Attach new relay to the cabinet 3 Remove wires one at a time from the old relay and reattach to the new relay Install relay in upright positio...

Page 56: ...nt panel 2 Remove attachment nuts and heater 8 3 Remove ceramic insulating caps and disconnect wires 4 Reassemble in reverse order 7 4 8 THERMOSTAT REPLACEMENT 1 Remove motor compartment panel 2 Remove two screws 1 which hold thermostat 9 to bracket 3 Disconnect wires and attach to new thermostat 4 Install new thermostat and screws 7 4 9 FLOAT SWITCH REPLACEMENT 1 Remove motor compartment panel 2 ...

Page 57: ...se steps 1 thru 5 7 To replace switch operator insert screwdriver under locking tabs at the front of the switch and pry up Do the same on the opposite side 8 Install the operator Reverse steps 1 thru 5 9 Replace contact block 5 1 Insert a small screwdriver in the slot at the rear of the contact block and separate the blocks 2 Slide the blocks forward and backward do not attempt to pry apart latera...

Page 58: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 59: ...e 7 4 12 FLOW INDICATOR REPLACEMENT 1 Remove chemical suction tubes from chemical containers and place in clean water Flush the system using the prime switches 2 Remove silicone rubber tubes from both ends of the flow indicator and remove glass balls 3 Remove screws attaching indicator to door 4 Install new indicator reversing steps 1 2 and 3 Flow indicators and chemical system contain caustic che...

Page 60: ...strainer cap 1 2 Remove screen and inspect 3 Slightly open shut off valve 2 to flush loose scale or dirt from the strainer housing 4 If screen is clogged soak in lime remover If damaged replace 5 Reassemble in reverse order 7 5 2 REPLACE SHUT OFF VALVE PACKING 1 Shut off water supply upstream of machine 2 Remove screw and lift off valve handle 3 Using inch wrench remove valve bonnet 3 4 Disassembl...

Page 61: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 62: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 63: ...lean strainer screen 7 See Figure 7 5 7 5 4 REPLACE SOLENOID VALVE COIL See Figure 7 5 3 1 Remove screw 1 on top of solenoid coil housing 2 Remove coil and housing 3 Disassemble housing and replace coil 4 Install housing on valve body and replace screw 7 5 5 OVERHAUL VACUUM BREAKER See Figure 7 5 5 1 Remove cap by turning counter clockwise with channel locks or pipe wrench 2 Remove plunger 1 and g...

Page 64: ...Total Restaurant Supply https totalsupply1 com Toll Free 1 800 944 9304 Local 507 288 9454 2940 Hwy 14 W Rochester MN 55901 ...

Page 65: ...scharge at the vacuum breaker 90 to an upward direction as shown 3 Using a pipe wrench rotate the vacuum breaker inlet pipe and remove this portion of the plumbing from the machine 4 Remove the elbow 5 5 Remove lock nut 6 on plumbing inlet 6 Remove screw which attaches the gusset to the front sump panel 7 Remove lower plumbing assembly from the machine 8 Replace individual parts as required and re...

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