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CLEANING & MAINTENANCE
4.5
REPLACING FAN MOTORS AND BLADES
See cross section for location of evaporator fans.
Should it ever be necessary to service or replace the
fan motors or blades be certain that the fan blades are
re-installed correctly.
1. Isolate power.
2. Remove of all product stock and store appropriately.
3. Remove bottom display pans.
4. Remove fan guard and fan blade.
5. Remove screws holding fan motor/bracket
assembly to plenum and remove assembly.
6. Disconnect and remove the fan assembly.
7. In reverse order replace fan motor/bracket and
harness assembly, ensuring it is retained in original
location.
8. Safely switch power to the case back on.
With case power turned on:
9.
Verify that motor is working and blade is turning in
the correct direction.
10. Check fan plenum is seated correctly with no air re-
circulation.
11. Replace display pans.
12. Allow the case to attain correct working temperature
(approximately 30 minutes) and restock the shelves.
WARNING:
electrical power at the main disconnect
when servicing or replacing any
electrical component. This includes,
but is not limited to, such items as fans,
heaters, thermostats and lights.
PAGE 32
Always disconnect the
Fan Assembly
Screws
Bracket
Electric Plug
FIGURE 3N
SMED SEMI VERTICAL - HUSSMANN
Fan Guard
Fan Blade
Motor
Plenum
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