12
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.
Summary of Contents for FM-300AFE-HC
Page 7: ...3 2 DIMENSIONS CONNECTIONS a FM 481AGE HC FM 481AGE HCN ...
Page 8: ...4 b FM 300AFE HC FM 300AFE HCN ...
Page 9: ...5 3 SPECIFICATIONS a FM 481AGE HC ...
Page 10: ...6 b FM 481AGE HCN ...
Page 11: ...7 c FM 300AFE HC ...
Page 12: ...8 d FM 300AFE HCN ...
Page 14: ...10 Drier Ice Chute Pressure Switch ...
Page 23: ...19 b FM 300AFE HC FM 300AFE HCN Pressure Switch Cut out 22 6 1 5 0 bar Cut in 15 7 1 5 bar ...
Page 24: ...20 2 WIRING DIAGRAM a WIRING DIAGRAM FM 481AGE HC FM 481AGE HCN ...
Page 25: ...21 FM 300AFE HC FM 300AFE HCN ...
Page 26: ...22 b CONTROL BOX LAYOUT FM 481AGE HC FM 481AGE HCN ...
Page 27: ...23 FM 300AFE HC FM 300AFE HCN ...
Page 35: ...31 FM 300AFE HC FM 300AFE HCN ...
Page 36: ...32 ...
Page 37: ...33 c SEQUENCE FM 481AGE HC FM 481AGE HCN 1 Startup Water Supply ...
Page 39: ...35 FM 481AGE HC FM 481AGE HCN 3 Startup Ice production starts ...
Page 40: ...36 FM 481AGE HC FM 481AGE HCN 4 Normal Operation Bin Control ...
Page 41: ...37 FM 481AGE HC FM 481AGE HCN 5 Shutdown Compressor stops 5 min ...
Page 42: ...38 FM 481AGE HC FM 481AGE HCN 6 Shutdown Drain ...
Page 43: ...39 FM 300AFE HC FM 300AFE HCN 1 Startup Water Supply ...
Page 45: ...41 FM 300AFE HC FM 300AFE HCN 3 Startup Ice production starts ...
Page 46: ...42 FM 300AFE HC FM 300AFE HCN 4 Normal Operation Bin Control ...
Page 47: ...43 FM 300AFE HC FM 300AFE HCN 5 Shutdown Compressor stops 5 min ...
Page 48: ...44 FM 300AFE HC FM 300AFE HCN 6 Shutdown Drain ...
