SCN60
Service
Removal and Replacement
Component Access
The machine is designed to be cleaned while built in. See the Maintenance section for more information.
Most components require the machine to be removed from a
•Fan motor – side service panel
•Controller – top panel
•Auger motor – top panel, back panel
•Ice sensor – top panel
•Drain pump – side service panel
•Top bearing – top panel
•Gear reducer – top panel, back panel
•Ice sweep – top panel
•Water seal – top panel, back panel, bin back panel
•Water reservoir or float - top panel
Evaporator / Auger / Water Seal / Gear Reducer Service
The auger, top bearing, water seal and gear reducer can be replaced without disturbing the refrigeration charge. If the evaporator must be replaced, then the refrigeration system must be accessed so the charge can be recovered.
Evaporator construction
The evaporator is made up of a stainless steel tube, wrapped with a coil of copper and then heavily insulated. There is no refrigerant path to the water inside of the evaporator. The inside of the tube is polished and rifled with12 vertical grooves that help guide the ice straight up the tube.
It is normal for mineral scale from the water to form on the inside of the evaporator tube. That scale must be removed by use of ice machine scale remover using the process described in Maintenance. Heavy scale build up will require the process to be repeated. The inside of the evaporator tube may be sanded vertically to remove tough build up. Do NOT hone or clean with a wire brush on a drill, as horizontal marks on the inside of the evaporator will restrict the flow of ice.
A damaged evaporator must be replaced.
The auger can also have scale build up which must be removed. It works best when it is clean and shiny. Note that a wet auger will appear clean but when dry the scale will be visible. Dry off the auger (use your heat gun) to determine if it’s clean. If the machine has been operated with worn bearings, the auger may have rubbed the evaporator wall. If the spiral edges or flights of the auger are damaged, the auger must be replaced.
The ice breaker at the top of the evaporator contains the
The gear reducer is a sealed unit. The only service part available for it is the drive motor and drive motor capacitor.
Lubricants and Sealants
Food grade lubricant is useful in repair of this model. Scotsman part number
Food grade sealant is needed in repair of this model. Scotsman part number
May 2011 Page 13
