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Maintenance
After fitting the impeller unit, insert two lock pins
all the way seated in the lock pin holes from an
inner surface.
Use a flathead screwdriver to turn the pins 90
degrees clockwise from the outside while holding
the pins from the inside. Once it clicks, the impel-
ler unit is secured.
If the screw groove is deformed and can not be
used, the pins can be turned from the inner sur-
face with a 4mm hex. wrench. In this case turn the
wrench anticlockwise. Note these plastic pins may
be broken if it is turned in reverse.
2. Insert the combination of the impeller unit and the
magnet capsule unit into the rear casing slowly.
Do not allow foreign matters such as iron pieces to
adhere to the magnet capsule unit.
3. Mount the rear casing with the combined units in it to
the bracket.
CAUTION
Magnet force is very powerful. Place plas-
tic or wooden spacers between the rear
casing and the motor bracket so as not to
catch the fingers.
Pay extra attention to For F402 and F403
in this point.
Bracket
Spacer
Impeller
Lock pin
