Hobart SM6T2 ML-110857 User's Manual
Contents
1. 133 777 FILL AND ar 1 MANUAL OR MANUAL RINSE DOOR OPENINGS UPPER WASH POSITION _ POSITION INSE 7 14 gt IO CLEARANCE m gt m s Ika T INSIDE OF 1 163 m 4 RACK GUIDE Pe sss a E lil 8 mi lt I u2 ie 74 4 me 14 6 12 Pl DRAIN CONNECTION TAPPED FORI 1 4 PIPE USE 1 1 4 X1 1 2 CLEARANCE NECESSARY COUPLING TO PROVIDE I I 2 LINE TO SEWER P2 HOT WATER 1 2 FEMALE PIPE THREAD 180 MIN El ELECTRICAL BOX CONNECTION BOX HAS KNOCKOUT FOR 1 2 CONDUIT 7 8 DIA E2 ELECTRICAL HEATER SINGLE PHASE 1000 WATT REGULATED KNOCKOUT FOR 1 2 CONDUIT STANDARD TO REMOVE HEATER ELECTRICAL RATED MIN SUPPLY SM6T2 CIRCUIT SPECIFICATION AMPS AMPACHY MOTOR 120 60 1 6 0 Net Weight 243 Ibs ELEC HT 120 60 1 9 Approx Shipping Weight 290 Ibs 1 09 Kw OPERATION INTERLOCK The hoods are interlocked with the Control Handle Fig 1 which prevents operation of the automatic wash and rinse cycle with a hood open Also the hoods cannot be opened while the dishwasher is in an automatic wash and rinse cycle FILLING THE TANK Be sure that the Overflow Pipe Fig 3 is properly seated Then close the hood and turn the Control Handle to the rinse position Fig 2 Hold it there until the wash tank is filled to the top of the Overflow Pipe DETERGENT2. 1 1 8 DIA 2 HOLES INSIDE OF WASH TANK MEASURES 19 11 16 x 19 11 16 8 11 32 DIA 6 HOLES 7 8 DIA HOLE APPROX 1 4 DRILL BEND DOWN INSIDE DISHWASHER CLAMP TWO REQUIRED APPROX 1 8 THICK STAINLESS STEEL SUPPLIED BY OTHERS CORNER NOTCHING 11 32 DIA 3 HOLES 20 REINFORCEMENT STRIPS TWO REQUIRED APPROX 1 8 THICK STAINLESS STEEL ATTACH SCREWS THEN WELD UNDERNEATH TABLE SUPPLIED BY OTHERS DETAILS DIMENSIONS AND CONNECTIONS MODEL SM6T2 WARNING ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE u 1 8 DIA 2 HOLES APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND OR lig Sef SE OTHER LOCAL ELECTRICAL CODES OUTSIDE INSIDE OF FLANGE PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY SAFETY AND PLUMBING CODES NOTCH TABLE FLANGE 5 16 ON EACH SIDE TO CLEAR WELDS IN TANK CORNERS 5 T 1 2 MOTOR DISHWASHER SIZE OF RACKS 16 x16 pIA 10 HOLES 2 HOLE DIA HOL E IF MACHINE IS MOUNTED NEAR TABLE BULKHEAD 2 ADD CLEARANCE HOLE IN BULKHEAD FOR 9 5 91 16 16 REMOVING HEATER AS SHOWN ep 26 2 OVERALL WIDTH He 25 OVERALL DEPTH NEUTRAL ar er
3. SM6T2 DISHWASHER MODEL SM6T2 ML 110857 CORPORATION 701 S RIDGE AVENUE TROY OHIO 45374 0001 937 332 3000 www hobartcorp com FORM 34047 Rev A July 2000 Installation Operation and Care of MODEL SM6T2 DISHWASHER SAVE THESE INSTRUCTIONS GENERAL The SM6T2 dishwasher is an electrically controlled semi automatic rack type dishwasher with telescoping hoods designed for straight through operation The wash and rinse cycles are timed and automatically controlled The timed rinse cycle operates a solenoid valve The wash pump motor is rated 2 HP The wash tank heater is rated 1000 watts The dishwasher accommodates 16 x 16 racks available in durable plastic pegged or flat bottomed A vacuum breaker is provided on the rinse and fill line which provides an air to prevent any reverse flow of water from the machine into the potable water supply MODEL SM6T2 DISHWASHER VACUUM BREAKER CONTROL HANDLE a INTERLOCK we gt gt lt SOLENOID VALVE _ THERMOMETERS THERMOSTAT PETCOCK VALVE FILL CONNECTION PILOT LIGHT JUNCTION BOX CONTROL SWITCH MANUAL AUTO Fig 1 HOBART CORPORATION 1998 2 INSTALLATION Immediately after unpacking the dishwasher check for possible shipping damage If the machine is found to be damaged save the packaging material and contact the carrier within 15 days of delivery Prior to installation
4. test the electrical service to make sure it agrees with the specifications on the machine data plate LOCATION AND LEVELING The dishwasher must be installed per the drawings on pages 4 6 Stainless steel is the recommended material forthe table The table should be a convenient height for the operator The dishwasher should be level both front to back and side to side The table should drain into the dishwasher Seal around the table flange with an NSF approved sealer PLUMBING CONNECTIONS WARNING PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY SAFETY AND PLUMBING CODES The plumber who connects this machine is responsible for making certain that incoming water lines are THOROUGHLY FLUSHED OUT before connecting to any manual valve or solenoid valve This flush out is necessary to remove all foreign matter such as chips resulting from cutting or threading of pipes pipe joint compound from the lines or if soldered fittings are used bits of solder or cuttings from tubing Debris if not removed may lodge in the valves and render them inoperative Manual valves or solenoid valves fouled by foreign matter and any expenses resulting from this fouling are NOT the responsibility of the manufacturer Hot Water Connection Water must be proper hardness Recommended hardness range is 4 6 grains gallon Lower hardness can promote corrosion higher hardness may cause excessive formation of lime scale Aline strainer
5. electric box for the electric heater where a knockout for 2 conduit is provided Refer to the wiring diagram attached to the inside of the control box cover All electrical supply lines to the machine must be disconnected when disconnection is required VACUUM BREAKER CONTROL HANDLE INSIDE HOOD OUTSIDE HOOD REAR HOOD SUPPORT CONTROL SHAFT amp SET SCREWS HOOD SUPPORT TABLE APART HERE AND REMOUNT SO THAT THE WASH TANK IS BELOW THE TABLE AND THE HOODS ABOVE IT FLANGE ON DISHWASHER WASH TANK 00000 INSTALLATION OF SM6T2 DISHWASHER IN TABLE REMOVE THE CONTROL HANDLE BY LOOSENING THE SET SCREW 1 TAKE OUT SCREWS 2 FROM CONTROL SHAFT amp HOOD SUPPORT AND REAR HOOD SUPPORT DISCONNECT VACUUM BREAKER BY DETACHING COMPRESSION FITTINGS 3 amp 4 AND REMOVE WITH REAR HOODSUPPORT DO NOT LOOSEN SET SCREWS IN REAR HOOD SUPPORT LIFT HOOD OFFAS A UNIT FIT TANKOF MACHINE TO TABLE OPENING BY PLACING BENEATH TABLE AND LIFTING UP INTO POSITION RE ASSEMBLE THE VACUUM BREAKER TIGHTEN THE COMPRESSION FITTINGS THEN AT TACH THE CLAMPS 5 SECURELY AND RE ASSEMBLE THE MACHINE ADJUST FOR RADIAL LOCATION BEFORE LOCKING SCREW HF SOS IN JZ 2722279 WELD 5 16 LOCKWASHER 5 16 NUT N Ca a ADJUST FOR LENGTH SECTION AA 5 16 x 1 SCREW OF SWITCH THROW 27 23 932 932 ree
6. 34047 Rev A July 2000 12 PRINTED IN U S A
7. R and drain tank Check for any obstruction at the pump intake 4 Excessively hard water 5 Incorrect detergent for water type 6 Incorrect rinse additive for water type 7 Incorrect concentration of detergent and or rinse additive 11 SYMPTOM Inadequate rinse POSSIBLE CAUSE Dirty line strainer causing reduced water flow Turn off water supply remove strainer cap withdraw and clean screen Reassemble Low supply line pressure Excessive mineral deposits throughout wash and rinse system Deliming may be necessary Leaking valve except solenoid type Foreign material preventing proper valve operation NOTE A critical period is soon after installation when pipe compound or metal shavings may lodge at the valve seat Shut off supply line Unscrew and lift bonnet from valve body Clean valve and reassemble If a solenoid valve is malfunctioning it is recommended that you contact Service No wash tank heat Circuit breaker to heater tripped Because of a low water condition the thermostat turned the heater off To reset the thermostat refer to HEATER page 7 Over temperature thermostat may have tripped Contact Service No or slow fill SERVICE Dirty line strainer causing reduced water flow Turn off water supply remove strainer cap withdraw and clean screen Reassemble Contact your local Hobart Service Office for any repairs or adjustments needed on this equipment FORM
8. Use only commercial grade detergents recommended by your chemical professional Do not use detergents formulated for residential dishwashers Contact your chemical supplier to obtain a recommendation for an appropriate detergent that is suited to the water in your locality The wash tank capacity is 5 gallons Rinse water usage adds 1 36 gallons of fresh water per cycle at 20 psig HEATER The electric heater with thermostat standard must also have a fused disconnect switch not provided installed in the electric service line supplying this device and should meet the requirements of your local electrical code The switch must be placed in a convenient location for the operator To operate the heater set the dial on the thermostat to the desired water temperature The heater should be turned on and off by the disconnect switch and not by the thermostat dial If the thermometer does not indicate the proper temperature with the pump running the thermostat can be set higher or lower as required CAUTION Be sure the tank is filled with water before turning on the heater and always turn off the heater before draining the tank NOTE Should the tank be accidentally drained before turning off the heater the thermostat will automatically shut off the heater When this type of heater shut off occurs turn off the power at the disconnect switch Allow the thermostat bulb to cool Fill the tank with water Press the small re set button next to the cont
9. her surface DO NOT allow foreign objects to enter the unit especially metallic contaminants NOTE Failure to follow use care and maintenance instructions may void your Hobart warewasher warranty MAINTENANCE WARNING DISCONNECT THE ELECTRICAL POWER SUPPLIES BEFORE CLEANING OR SERVICING THIS MACHINE LUBRICATION The motor ball bearings are permanently lubricated at the factory and no further lubrication is required 10 TROUBLESHOOTING To avoid a service call check symptoms and related possible causes If machine still does not operate properly contact Service SYMPTOM POSSIBLE CAUSE No machine operation 1 Blown fuse or tripped circuit breaker at power supply Dishes not clean 1 Insufficient wash water due to drain obstruction preventing Overflow Pipe from seating 2 Loss of water pressure due to pump obstruction DISCONNECT ELECTRICAL POWER SUPPLIES BOTH DISHWASHER AND HEATER and drain tank Check for any obstruction at the pump intake 3 Incorrect water temperature Check circuit breaker to electric heat supply Check to see if heater is turned on 4 Inadequate detergent supply 5 Excessive mineral deposits throughout wash and rinse system Deliming may be nessessary Spotting silverware glasses 1 Improperly loaded racks and dishes 2 Incorrect rinse water temperature 3 Loss of water pressure due to pump obstruction DISCONNECT ELECTRICAL POWER SUPPLIES BOTH DISHWASHER AND HEATE
10. me close the hood and rinse for a few seconds Then force a piece of wire such as a straightened paper clip into the spray nozzles one side at a time thus pushing any obstruction into the rinse pipe Close the hood and rinse for a few seconds then replace the End Plug Fig 4 Repeat for other side Complete removal of the rinse pipes Fig 4 is accomplished by loosening the set screws Fig 4 Do not change the angled settings of the rinse nozzles from the factory preset angles RINSE PIPE TR WINGED CAP SET SCREW UPPER RINSE NOZZLE Ce ee RINSE PIPE EX RINSE ARM BEARING PIN RINSE NOZZLE i 5 END PLUG WASH ARM WASH ARM END COVER DOs AND DON Ts FOR YOUR NEW HOBART WAREWASHER DO assure proper water hardness DO pre scrap dishes thoroughly DO use only detergents recommended by your chemical professional DO at the end of the day thoroughly cleanse the machine rinse and dry leave hood open DO closely follow your chemical professional s prescribed deliming schedule DO use only products formulated to be safe on stainless steel DO NOT over soften water recommended water hardness is 4 6 grains per gallon DO NOT use detergents formulated for residential dishwashers DO NOT allow food soil to accumulate on the tank bottom DO NOT exceed chemical manufacturer s recommended concentrations for detergent sanitizer rinse agent or lime scale remover DO NOT use steel wool to clean ware or warewas
11. ove the Strainer Pans Fig 3 and empty contents into garbage can or disposer Lift out the Overflow Pipe Fig 3 and let the water drain out _8 CLEANING WARNING DISCONNECT THE ELECTRICAL POWER SUPPLIES BEFORE CLEANING OR SERVICING THIS MACHINE The machine must be thoroughly cleaned at the end of each working shift or at least twice a day Use only products formulated to be safe on stainless steel Wash Arm The Wash Arm can usually be cleaned without removing it from the dishwasher Swing up the Wash Arm End Covers Fig 4 and flush out by closing the hood and operating the wash manually Refer to Manual Operation page 8 To remove the Wash Arm from the machine lift off the Rinse Arm and unscrew the Rinse Arm Bearing Pin Fig 4 on which the Rinse Arm rotates This may be done by inserting a rod in the cross holes to serve as a wrench If the arm should stop revolving first make sure that the tank is full of water Then make sure that all wash arm nozzles are clean Rinse Nozzles If the rinse water contains lime or other solids the Rinse Nozzles will need frequent cleaning Take the Upper Rinse Nozzles apart by unscrewing the winged caps Fig 4 and clean the grooves and center hole in the loose Core Fig 4 Close the hood and flush out by operating the rinse Replace the Cores and winged caps The lower rinse pipes can be quickly flushed out by removing the End Plugs Fig 4 Remove the End Plugs one at a ti
12. rol Handle to ON and the timer motor will start STRAINER PAN The timer then lights the Pilot Light and starts the pump motor The Pilot Light Fig 1 stays on until the cycle is completely finished The wash pump operates for 73 seconds then stops A pause of 3 seconds follows to allow the wash water to drain from the dishes Then the rinse solenoid comes on for 12 seconds to complete the 88 second timed cycle When the rinse shuts off the Pilot Fig 3 Light goes out Turn the Control Handle to neutral If your tables are arranged for straight through operation open the opposite hood and slide the rack out on the clean dish table Allow clean dishes to drain and air dry before removing from rack Add dishwashing detergent at regular intervals to replace that consumed in the wash rinse process as recommended by your chemical supplier The Control Switch Fig 1 in the center position between Manual and Auto provides only a Manual Rinse or Fill operation if the Control Handle is turned to Rinse Fig 2 MANUAL OPERATION With the Control Switch turned to the Manual position the auxiliary circuit allows the dishwasher to operate manually using the Control Handle in the Wash and Rinse positions Fig 2 The same 73 second wash 3 second pause and 12 second rinse cycles should be used when the dishwasher is operated manually as when operated by the automatic timer AFTER WASHING Turn the heater OFF Rem
13. rol knob on the thermostat Then turn on the power at the disconnect switch PREPARATION e Make sure the dishwasher tank the Strainer Pans and the chamber are clean With the Overflow Pipe properly seated fill the tank to the top of the Overflow Pipe by turning and holding the Control Handle in IN the rinse position Fig 2 LES RINSE e Put Strainer Pans Fig 3 place Scatter RE the initial charge of detergent over the Strainer Pans kalli F Turnthe heater on Wash water temperature should be 150 F Fig 2 AUTOMATIC DISHWASHING Pre scrap dishes thoroughly to remove large food particles and debris Never use steel wool on ware that is to be loaded into the dishwasher Do not allow foreign objects to enter the dishwasher especially metallic contaminants Stack the dishes in a rack Do not stack dishes one on top of another as water must have free access to all sides of every dish Stand plates and dishes up edgewise as shown in Fig 2 Cups glasses and bowls should be inverted in an open type or compartment type rack Silverware and other small pieces may be scattered loosely over the bottom of a flat bottom rack Open the hood and slide in a rack of dishes Have the rack turned so the plates stand at right angles to the edge CE of the table Fig 2 Close the hood With the Control Switch turned to the Auto position and the hoods closed turn the Cont
14. should be installed in the water supply line at the time of installation The line strainer prevents frequent clogging of the rinse nozzles and requires only occasional cleaning The water supply connection point has a 2 NPT internal thread see FILL CONNECTION Fig 1 The water supplied to this machine must be 180 F and have a flow pressure of 20 25 psig for most effective rinsing CAUTION The water pressure regulator must have a relief by pass Failure to use the proper type of pressure regulator may result in damage to the unit After installation a pressure gauge must be visible and access must be available to service connections and areas which require cleaning Drain Connection Connect the drain to the sewer from the 1 4 NPT tapped connection provided Use a 11 4 11 2 coupling to provide 1 2 line to sewer If a grease trap is required by code it should have a minimum flow capacity of approximately 28 gallons per minute ELECTRICAL CONNECTIONS WARNING ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND OR OTHER LOCAL ELECTRICAL CODES WARNING DISCONNECT THE ELECTRICAL POWER SUPPLIES AND PLACE A TAG AT THE DISCONNECT SWITCHES INDICATING THAT YOU ARE WORKING ON THE CIRCUITS Make the main electrical connection at the motor junction box Fig 1 where a knockout for 2 conduit is provided Make the electrical connection for the electric heater circuit at the
Download Pdf Manuals
Related Search