Donaldson Company, Inc. © 1995
7
1.1.2 Filter Cleaning
Filter elements are cleaned automatically and
sequentially. The result is that only one filter
cartridge will be off-line for cleaning at any
given time.
During the filter element cleaning purge, a
solenoid valve is energized, causing the
corresponding diaphragm valve to send a pulse
of compressed air through the filter element
(from the inside outward), removing the
collected dust from the outside surfaces of the
filter element. The dust falls into the dust storage
container.
2.0 Installation
2.1 Inspection
The Downflo SDF is normally shipped by
common carrier and should be checked for
damage that may have occurred en route. Any
damage should be noted and the carrier notified
immediately.
2.2 Ship Loose Items
Items shipped loose with the dust collector may
include:
• Bag-out Assembly
• Inlet Collar
• Compressed Air Inlet Adapter
• (4) Leveling Mount Foot Pads
• (4) Metric Hex Bolts
• Hopper
• Legs and Crossbracing
• Outlet Adapters
• Auto-Lok/Ultra-Lok/HEPA/Carbon Filter
• Remote Checker Board/
Magnehelic Gage/Photohelic Gage
• Slide Gate/55-Gallon Drum Cover Pack
• 5-Gallon Pail Pack
• Flex-Trunk Assembly
• Weather Hood
• Explosion Vents
Most cabinets are shipped completely assembled
with the filter cartridges installed.
2.3 Equipment/Tools Required
The following is a list of typical tools and
equipment required to install and assemble a
Downflo SDF unit.
• Crane/Lift Truck
• Pipe Wrenches
• Socket Wrenches
• Pipe Sealant
2.4 Assembly of Standard Equipment
Remove all crating and strapping from the unit.
Remove all miscellaneous parts (bolts, nuts, etc.)
before lifting the unit off of the truck. Check the
parts received against the packing list. If there
are parts missing, the carrier and your local
Torit representative should be notified
immediately.
• Connect lifting slings to the four lift
lugs on top of the dust collector when
using a crane to unload the unit.
• Insert the fork under the dust
collector between the casters or legs
when using a forklift truck to unload
the unit.
NOTE
A crane or forklift truck is recommended
for the unloading of the dust collector.
CAUTION
NOTE
If the lift lugs are removed, they must be
replaced with the four (4) metric hex
bolts (provided) before the dust collector
is operated.
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