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118 F300S/F300SQ Ultraviolet Lamp System
The filters pull out easily. New filters should be tucked in at the edges. The white side
belongs outside, so the blue side should face in.
CAUTION: Do not operate the modular blower without a properly
installed air filter. Unfiltered cooling air can reduce lamp bulb and
reflector life.
Blower Cover Removal
Remove the six M5 truss head screws and lift off the blower cover. With this cover
removed, the blower components are exposed and accessible.
Motor Replacement
1. Remove the blower cover. Remove the screws holding connector J11 to the
blower chassis. Cut the leads to the blower and disconnect the ground wires from
the ground screw (see Figure 48 on page 119).
2. Remove wires from capacitor C200.
3. Remove the blower housing cover plate.
4. Loosen the motor support clamps. Remove the motor and wheel through the
housing.
5. Carefully measure and record the length of the shaft projection beyond the
bearing hub.
6. To remove the wheel from the motor, loosen the wheel set screw and remove the
wheel.
7. To replace these items, reverse the process, being careful to reinstall the wheel
so that it is at the same point on the shaft.
WARNING: Turn off all power to the unit before
servicing.