Hoshizaki FM-300AFE-HC, Руководство по обслуживанию

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II. MAINTENANCE AND CLEANING INSTRUCTIONS
IMPORTANT
1. This icemaker must be maintained individually, referring to the instruction manual
and labels provided with the icemaker.
2. To have the optimum performance of this icemaker, the following consumable
parts need periodical inspection, maintenance and replacement:
Extruding Head (Top Bearing)
Housing (Lower Bearing)
Mechanical Seal
These parts should be inspected at least once a year or every 10,000 hours of
operation. Their service life ultimately depends on water quality and environment,
therefore more frequent inspection and maintenance may be required.
1. EXTRUDING HEAD, HOUSING BEARING, AUGER BEARING
These parts should be replaced if a diametrical gap of more than 0.5 mm is found when at
least three spots are checked by changing the direction of the Auger on each Bearing.
It depends on the water quality and conditions, but normally the Bearings should be
checked for wear after a total of 8,000 - 10,000 hour operation from installation date.
Note: The clearance between the Auger blades and the Evaporator interior is 0.4 - 0.5 mm.
If the Bearings and rotating parts are worn out to create a larger clearance, the
Evaporator interior may be damaged. (The diameters differ by 0.8 - 1.0 mm.)
If the Auger surfaces against which the Bearings contact are no longer smooth or
show any burrs or abrasions during the above inspection, replace the auger.
2. MECHANICAL SEAL
The Mechanical Seal prevents water leaks from between the Auger and the Housing
Bearing and gradually wears out to reduce its watertightness. Check the amount of water
leakage from the Drain Pipe located at the side of the Gear Case to determine the
necessity of replacement.
Total operation time Water leakage
3,000 hours 0.1 mL/h
10,000 hours 0.5 mL/h
Note: The water leakage will exceed the above amount with scale/dirt build up or damage
on the mating surface. Replace the Mechanical Seal when the water leakage
exceeds 0.5 mL/h.