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Donaldson Company, Inc.
Felt Snap-In Bag Filter Removal
1. Properly shutdown the system and lock out electrical
system.
2. Access clean air plenum through door.
3. Remove cage leaving the bag hanging in dirty air
plenum.
4. Push one side of snap band to deform and release
from the tube sheet.
5. Push the bag down into the bottom of the dirty air
plenum.
6. Repeat steps 4-6 for each bag.
Note: The cleaning arm may need to be manually
rotated to access some bags.
7. Remove all dirty bags through hopper access door.
Felt Snap-In Bag Filter Installation
1. From the clean-air plenum, carefully insert the snap-
in filter bag aligning the seam with the long edge of
the oval in the tube sheet.
2. Snap the bag in place with the tube sheet between
the upper and lower rings on the filter bag collar.
3. Slide the filter cage into the filter bag and seat firmly.
filter cage
tubesheet
lower ring
upper ring
filter bag
center seam on long side
of oval tubesheet hole
Felt Snap-In Bag Filter Installation
5. The snapband retainer should fit snugly between
the lip rim and the vertical post stops. Be sure the
snapband retainer is level and not installed crooked.
A correctly installed snapband retainer will help
prevent any potential leakage at the tubesheet and
keep the filter firmly in place.
