Cyclonic System Maintenance
Maintaining Your Single Canister Unit
The
mass of dirt and debris picked up by your central vacuum system is deposited
in the dirt canister. The dirt canister is attached to the bottom of your
power unit and will need to be emptied on a periodic basis. To empty the
dirt can, follow these simple steps:
- To remove the dirt canister, support the bottom of the canister with your
knee* (see figure 1a), then unsnap the two dirt canister latches by grasping the
lower end of each latch and pulling straight away from the canister. (Note:
The latches may be tight, but do not try to adjust them. They need to latch
tightly, to ensure a proper seal, which is important in the operation of the
cyclonic separation.)
- Carefully lower the dirt container and empty the debris into any
suitable trash container. (If equipped with an air channel and plastic bag,
see page 7 for more instructions.)
- Check the vacuum pump protection screen by looking up or feeling up
inside the dirt canister to remove any debris that may have become stuck on
the screen up inside the metal cone. A plastic bag may be placed over the
bottom portion of the top canister. Then, while holding the plastic bag
tightly around the canister with one hand, push the bag up inside with the
other hand and brush the screen surface (see figure 2a). In this way, the
screen can be cleaned without getting any dust or debris on the floor or
hands.

TIP:
When cleaning the up inside the can, try using a toilet bowl brush or
something similar. This will allow you to reach up inside more easily than
just by using your arm. Still use the plastic bag, as this will keep the
dirt from falling on you or your floor.
Some units may have an optional Electro-Static screen. To remove the
screen, pull down on the tab until the screen comes down through the metal
cone. Clean the electrostatic screen by vacuuming, rinsing with water, or
shaking. IMPORTANT: If you rinse the screen, make sure it is dry
before placing it back in the unit or it will void warranty. To replace the
screen, fold it and place it inside of the top of the metal cone. Then,
allow the Electro-Static screen to expand until it covers the entire
opening.
- Replace the dirt canister by slipping the rim of
the dirt canister over the lip of the top can until it is seated against the rim
gasket. Then while holding the canister in place with your knee* (see Figure
1a), fasten the two latches. Do this by hooking the top lip of each latch over
the rim of the top can and then press straight in on the bottom of the latches
until they lock.
*If you have trouble removing
or replacing the dirt canister using your knee, try supporting the can with
one hand, unlatching (or re-latching) one side with the other hand. Then,
reverse your hands to unlatch (or re-latch) the other side.
HOW OFTEN SHOULD I CHECK OR EMPTY MY DIRT CANISTER?
Initially, the dirt canister should be checked or emptied weekly until some idea
can be obtained as to how long it takes to half fill the canister under your
normal cleaning routine. All vacuum systems will function more effectively if
the filter system is emptied frequently. Under no circumstances should you allow
your dirt canister to become more than 3/4 full before emptying.
Note: The canister will fill more rapidly if NEW carpets are
being cleaned for there is usually a tremendous quantity of loose fibers that
are retained in the carpet from the manufacturing process. In some instances it
may take several months before all of these loose fibers are removed.