User manual SCOTSMAN NDE754

[. . . ] INTRODUCTION To the owner or user: The service manual you are reading is intended to provide you, and the maintenance or service technician with the information needed to install, start up, clean, maintain, and service this ice maker-dispenser. The NDE754 is a combination nugget ice maker and countertop dispenser. A water station is standard. NDE754 The NDE754 ice making section is equipped with the following features: electronic controls for bin level and low water; thermostatic expansion valve; front service for most components; and R-404a (HP62) refrigerant. The ice dispensing section is a seamless plastic storage bin, with a stainless steel ice agitator at the bottom to sweep the ice into the dispensing chute. [. . . ] The following is a list of recommended maintenance that will help keep the machine running with a minimum of problems. Sanitizing of the ice storage bin should be scheduled for a minimum of 4 times a year. Drain the water reservoir and freezer assembly using the drain tube attached to the freezer water inlet. Return the drain tube to its normal upright position and replace the end cap. Prepare the cleaning solution: Mix eight ounces of Scotsman Ice Machine Cleaner with three quarts of hot water. The water should be between 90-115 degrees F. Scotsman Ice Machine Cleaner contains acids. After all of the cleaning solution has been added to the reservoir, and the reservoir is nearly empty, switch the master switch to OFF. After draining the reservoir, as in step 6, wash and rinse the water reservoir. To Sanitize: Repeat steps 8-11, except substitute sanitizer solution for the cleaning solution. A possible sanitizer solution may be made by mixing 1 ounce of household bleach and 2 gallons of warm (95oF. Continue ice making for at least 15 minutes, to flush out any cleaning solution. Add warm water to the ice storage bin and thoroughly wash and rinse all surfaces within the bin. Sanitize the bin interior, cover, door and agitator with an approved sanitizer using the directions for that sanitizer. Slowly pour the cleaning solution into the water reservoir until it is full. As the ice maker begins to use water from the reservoir, continue to add more cleaning solution to maintain a full reservoir. March 2000 Page 15 NDE754 SENSOR MAINTENANCE 1. The ice machine senses water level by a probe located in the water reservoir. At least twice a year, the probe should be removed from the reservoir, and the tip wiped clean of mineral build-up. SLIDE SENSORS UP TO REMOVE 2. The bin control uses devices that sense light, therefore they must be kept clean enough so that they can "see". At least twice a year, remove the bin control sensors from the ice chute, and wipe them clean. Clean the Probe's Tip with ice machine cleaner and a clean, soft cloth. March 2000 Page 16 BEARING MAINTENANCE The bearing in the breaker should also be checked at least two times per year. Check the bearing by: NDE754 ·unscrewing the breaker cover. Auger Stud ·removing the ice chute cover Ice Sweep Cap Screw ·unscrewing the ice sweep ·removing the water shed Breaker Cover Off Inspect the bearing. If grease is needed the bearing and breaker should be removed to check the action of the bearing. To remove the breaker remove the lower ice chute then take out all four allen head cap screws and pull the breaker off the auger and evaporator. [. . . ] The two smaller gears and the oil should be in the lower case, the output gear will be with the cover. As you lower the cover onto the lower case, cover will have to be moved closer to the second gear after the output gear has cleared the second gear top bearing. E) After the case is together, and the locating pins are secure in both ends, replace all cap screws. Bench test the gearmotor, check for oil leaks, noise, and amp draw. Electrical Shock Hazard. [. . . ]