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LT1 DISHWASHER
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LOW TEMP DISHWASHER
MODEL
LT1 ML-104239
EXECUTIVE OFFICES
701 RIDGE AVENUE
TROY, OHIO 45374-0001
FORM 18580 Rev. A (8-96)
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TABLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Installation, Operation and Care of Model LT1 DISHWASHER SAVE THESE INSTRUCTIONS GENERAL The Model LT1 Dishwasher is a low temperature (140°F recommended, 120°F minimum), chemical 3 sanitizing, rack-type dishwasher for use with accessory 20" x 20" racks. It is equipped with a ⁄4 horsepower thermally protected (internal) pump motor. The motor must cool to restart the pump. The revolving stainless steel ball bearing wash / rinse arms above and below provide thorough distribution of water jets to
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INSTALLATION UNPACKING Immediately after unpacking the dishwasher, check it for possible shipping damage. If this machine is found to be damaged, save the packaging material and contact the carrier within 15 days of delivery. Prior to installation, verify that the electrical service agrees with the specifications on the machine data plate which is located to the right of the control box. LOCATION Before finalizing machine location, make sure that consideration has been given for water supply,
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Installation Drawing — 436254 – 5 –
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DISH TABLES Dish table end should be turned down and fitted over the lip SIDE TABLE SEAL TO of the dishwasher tank (Fig. 4). Use an NSF approved sealer PREVENT LEAKAGE between table and tank lip to prevent leaks. Fasten tables to the tank lip; truss head screws (by others) are recommended. PL-40922-1 PLUMBING CONNECTIONS Fig. 4 WARNING: PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY, SAFETY, AND PLUMBING CODES. The plumber who connects this machine is responsible for making certai
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ELECTRICAL CONNECTION WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES. WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT. ELECTRICAL DATA Minimum Circuit Ampacity / Model Volts / Hertz / Phase Maximum Protective Device AMPS 120 / 60 / 1 20 LT1 220 / 50 / 1 15 380 / 50 / 3 15 Compiled in accordance with
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CYCLE TIMER ADJUSTMENT The cycle timer, which regulates the dishwasher cycle, may require adjustment in order to suit local conditions. To gain access to the cycle timer, loosen the bottom screw on the access cover located on the right side of the control box and rotate the access cover up (Fig. 9). ACCESS COVER TIMER ADJUSTING WRENCH CYCLE TIMER LOOSEN SCREW PL-40927-1 PL-40928-1 Fig. 9 Fig. 10 The cycle timer (Fig. 9) makes one complete revolution (one dishwasher cycle) in 90 seconds. It con
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OPERATION CAUTION: Items made of pewter, aluminum, and silver will be attacked by the sodium hypochlorite sanitizing agent (liquid bleach) used in this machine and therefore should not be washed in it. In addition to these detailed instructions, brief instructions for operation and cleaning can be found on the front of the control box. CONTROLS (Fig. 11) RINSE AID DETERGENT SANITIZER PRIMING SWITCH PRIMING SWITCH POWER SWITCH PRIMING SWITCH DRAIN/FILL SWITCH CYCLE LIGHT COUNTER THERMOMETER P
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MACHINE PREPARATION Check to make sure that the pump intake strainer (Fig. 12), the drain pan strainer (Fig. 13), and the drain tube (Fig. 17) are in place and that both strainers are free of debris. The pump intake strainer must drop completely to the bottom of the sump. THE DRAIN AND STRAINERS MUST BE CLEAN AND FREE OF DEBRIS AT ALL TIMES. PUMP INTAKE STRAINER DRAIN PAN STRAINER PL-40929-1 PL-40923-2 Fig. 12 Fig. 13 Check the wash arms to make sure that they spin freely and that no nozzles a
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DISHWASHING Scrape and/or rinse dishes to remove food particles and other debris. Never use steel wool on ware to be loaded into the dishwasher. Place the dishes in a rack. Do not stack dishes on top of each other as water must have free access to all sides of every dish. Stand plates edgewise in a peg-type rack (Fig. 16). Place cups, glasses and bowls upside down in an open or compartment-type rack (Fig. 16). Silverware and other small pieces should lay loosely on the bottom of an open-typ
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CLEANING THE DISHWASHER Clean the dishwasher after each working shift. Never use steel wool to clean warewasher surfaces. Use only products formulated to be safe on stainless steel. 1. Drain machine. Turn the POWER switch Off. 2. Thoroughly cleanse and flush the dishwasher interior and then drain any water that may have accumulated. Wipe down the exterior PL-40932 of the machine. Remove remaining soil with a soft cloth or brush and mild cleanser. Rinse again. Do not allow food soil to accum
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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 door 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 no less than 4 grains per gallon).
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MAINTENANCE DELIMING WARNING: DELIMING SOLUTION MUST NOT COME IN CONTACT WITH BLEACH OR RINSE SOLUTION CONTAINING BLEACH USED IN THIS MACHINE. MIXING MAY CAUSE HAZARDOUS GAS TO FORM. THIS ENTIRE PROCEDURE MUST BE FOLLOWED STEP-BY-STEP FOR SAFE AND SATISFACTORY RESULTS. The dishwasher should be delimed when needed. Frequency of deliming will depend on the mineral content of the water supply. In areas where the water supply contains high concentrations of water solids, frequent deliming will
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13. Run machine without loading dishware for two complete cycles to remove the chemical deliming agent. 14. Reconnect sanitizer, detergent, and rinse aid systems. 15. With the standpipes installed in their respective containers (red in detergent, white in sanitizer, blue in rinse aid), press and hold each pump priming switch until the corresponding chemical reaches the end of its delivery tube. The machine is now ready for operation; or, if at the end of the day, drain the machine and turn the P
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TROUBLESHOOTING Symptoms that persist after possible causes have been checked may require service. SYMPTOMS POSSIBLE CAUSES No Machine Operation 1. Machine POWER switch in the OFF position. 2. Blown fuse or tripped circuit breaker at power supply. 3. DELIME/NORMAL switch in the DELIME position and machine in the middle of a cycle. Continuous Machine 1. DELIME/NORMAL switch in DELIME position. Operation 2. Problem with timer. Contact your local Hobart Service Office. Dishes Not Clean 1. Pump int
