Burr King BK75 - Manual (Page 21)

Donaldson Company, Inc.
20
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.
HEPA Filter Model 80
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
5. Position the HEPA filter pack on top of the unit
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.