27
Donaldson Company, Inc.
Model 80
1. Remove the top door assembly and set aside.
2. Place a piece of non-combustible cloth over the
filters in the clean-air chamber to protect them from
drilling chips.
3. Use a .312-in diameter drill bit to drill four holes in the
collector top as shown.
4. Apply sealant around sealing surface on
cabinet top.
5. Position the HEPA filter pack on top of the collector
aligning holes.
6. From inside the clean-air chamber, fasten the filter
pack to the top using four 1/4-20 thread-cutting
screws.
7. Carefully remove the cloth protecting the filters.
Replace the top door assembly and tighten securely
by hand.
23.68
2.38
4.23
20.00
.312
4x
silicone sealant
around all
mounting
surfaces
four 1/4-20
thread-cutting screws
5/16-18 x 2.5-in
hex bolt
5/16-18 lock nut
Top View Drill Location
Front View Right Side View
HEPA Filter Model 80
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