Preventative Maintenance Procedure (Every 6 to 12 Months)
A preventative maintenance visit should be performed every 6 to 12 months depending on the usage and environ- ment where the unit is placed. (Ex. seasonal machines - once before season, year round machines - twice per year). The following procedures should be performed during a preventative maintenance visit. This does not take the place of daily care and cleaning procedures as described by local health codes and the manual. PM kit #W0890157 contains the standard replacement parts needed for preventative maintenance including
•Verify ventilation is adequate
dust sources;
•Verify adequate water flow and drain connections on
•Check product temperature and consistency for proper setting (refer to product manufacturer’s recommendation) - adjust if necessary. Where equipped be sure to check the temperature in both the hopper and cylinder.
•Ensure product is being mixed properly and is within specification (check brix - most products should be around 13% - refer to product manufacturer’s recommendations for exact recommended brix).
•Check for any leaks.
•Empty product from the unit. Disassemble unit completely (as if for cleaning).
•Clean and sanitize all disassembled parts following the cleaning instructions in the manual.
•Clean and sanitize hopper, freezing cylinder and splash zones on the machine.
•Check condition of all panels and lids - replace if necessary.
•Check dasher scraper blades for wear if equipped - replace once per year minimum.
•Check dasher for signs of wear - replace if necessary. Verify alignment when replacing.
•Check valve body gasket for wear - replace once per year minimum.
•Check valve body knobs (used to hold valve body in place) - replace if necessary.
•Check condition of shaft seals and stator bearings - replace once per year minimum.
•Inspect drip cup at back end of freezing cylinder for signs of seal leakage.
•Replace
•Lubricate parts where appropriate (dispense valve
•
•Clean and sanitize spinner if equipped.
•Check operation of merchandiser and mode lights - replace light bulbs if necessary.
•Clean reusable filter if equipped. Check condition of filter and replace if necessary.
•Clean condenser.
•Inspect the drive shaft and motor shaft bearings for excessive wear (drive shaft hole rounding out) - replace if necessary. Verify alignment when replacing.
•Check
•Verify compressor operation and freezer controller operation.
•Check electrical connections (outlet should be properly grounded with amperage capacity equal to or over the amperage specified on the serial tag).
•Check fan operation (condenser fan) and clean fan blades if necessary.
•Review proper periodic care and cleaning instructions (disassembly, cleaning, sanitizing, lubrication, and
•Make sure store personnel have appropriate supplies (lubricant, cleaning brushes and sanitizer) to care for machine.
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