Aerospace Filtration Systems, Inc.
MD500-IBF-KIT-OMM/IPL
Proprietary
Information
Use or disclosure of this material is subject
MD500 IBF Operation & Maintenance Manual/
to the restrictions on the title page
Illustrated Parts List - Revision B
6
3.3 F
ILTER
R
EMOVAL
/I
NSTALLATION
The IBF system uses two barrier filter assemblies that can be easily removed for cleaning and/or
replacement. The system is designed for easy access and removal of the filter assemblies with
the aircraft shutdown on the ground.
Upper Filter Removal
CAUTION
After removal of the filter assemblies, inspect the
filter seals on the aircraft for visible damage and
security.
CAUTION
After removal of the filter assemblies, cover the
engine inlet to ensure it is protected from FOD, if
the assemblies are not reinstalled immediately.
Removal of the top filter requires the disengagement of (14) captive Dzus type fasteners.
A ¼ turn (counterclockwise) with a slotted screwdriver is all that is required to remove
the Dzus stud (screw head) from the receptacle. Once all the fasteners are loose, filter
element must be carefully removed so as not to damage the seals. The upper filter has the
seal attached to the underside of the filter assembly.
Upper Filter Installation
WARNING
Prior to installation of the filter assemblies,
remove any FOD protection from the engine
bellmouth.
Prior to installation of serviced filter assembly, the seal shall be visually inspected for
security and damage. Insert the upper filter assembly into the upper aft fairing cutout;
insure the assembly is seated properly in the upper opening. Engage the (14) captive
Dzus type fasteners by rotating ¼ turn clockwise and ensure the seal is uniformly
compressed. Do not over rotate the fasteners, over rotation will result in damage to the
stud and/or the receptacle.
Summary of Contents for MD500 Series
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