User manual SCOTSMAN FDE474

[. . . ] Introduction Purpose of this manual: To provide detailed installation and operation instructions; to give insights into how the machine works; to list possible causes for problems; and to suggest procedures for specific types of service. FDE474 The FDE474 is an ice maker and dispenser combined into one cabinet. The refrigeration system is air cooled, using R-134a as a refrigerant. The control system uses electric eyes as a bin control and a water level sensor as the water safety control. As ice is made, it fills a plastic storage bin. [. . . ] Replace all panels and reconnect electrical power. March 2000 Page 16 Auger and Bearing Inspection While in most areas regular in-place cleaning with Scotsman Ice Machine Cleaner will be adequate to keep the interior of the evaporator free of excessive mineral build up, some water conditions may require more intense methods. In addition, the auger bearings require physical inspection to determine that they are not wearing. This physical inspection is recommended twice per year for the top bearing and once per year for the auger and both bearings. Whenever the auger is removed, replacement of the water seal is recommended. If a bearing requires replacement, the other bearing must also be replaced. Disconnect Electrical Power Before Beginning. Remove 2 permagum plugs from the side of the evaporator. Remove 2 screws (screwheads were covered by the permagum). Pull up on the pull ring to remove the auger. Remove the breaker cover by taking the snap ring out. Use threaded rod or a slide hammer puller and screw into the auger, slide the weight quickly up against the stop to remove the auger. If the auger still will not move, bearing replacement is mandatory. See Bearing Removal and Replacement. FDE474 Snap Ring Auger & Bearings Cap Cap Screw Washer Breaker Screws Top Bearing Set Breaker Auger Bottom Bearing Water Seal Coupling Adapter Stand March 2000 Page 17 FDE474 Inspection: Auger To replace the water seal: The auger is made of stainless steel. It has a polished surface that may be either shinny or dull, 1. Remove old rotating half from the auger. After removal, allow the auger the mounting area. Place a bead of food grade sealant (such as on the auger's surface, clean off the auger with ice Scotsman part number 19-0529-01) onto the machine cleaner and a scrubbing pad. shoulder of the auger where the rotating half of the Remove the water seal and clean off the shoulder water seal will be installed. While wet, slip it Bearings: The top bearing should spin freely with onto the bottom of the auger, rubber side toward no rough spots. If it feels rough when spun by the auger. Push up until seated against the hand, replace it. There should be minimal rust or sealant. [. . . ] Disconnect the electrical wires from the centrifugal switch. Disconnect the water inlet tube from the evaporator. Motor Cover & Bearing Rotor Bearing Shaft Seals- 2, back to back Fan Stator E-Clip Woodruff Key Rotor Output Gear Gear Reducer Components Gear Case March 2000 Page 28 Auger Drive Motor The windings or top bearing & cover may be replaced without removing the evaporator or gear reducer from the machine. Shut off water supply. FDE474 If the rotor needs to be removed: 1. Pull and/or tap on the pliers to pull the rotor & bearing out of the gear reducer. [. . . ]