Brackett BA-8910 Filter Assembly

This Brackett polyurethane air filter element has been designed to provide maximum dust collecting efficiency, non-restrictive air flow, and economical element replacement, while maintaining a lightweight filter. The element has been treated with a distinctive treatment called a wetted agent and is approximately 98% efficient. The wetted agent is an accompaniment in the efficient capturing of dust. In addition, the element has received a fire retardant treatment. For the above reasons, replace the element each 100 hours of use/12 months or when 50% covered with foreign material. DO NOT WASH AND REUSE.

NOTE: The expected shelf life of Brackett elements stored in their original packaging and out of direct sunlight is as follows: 4 years from date of manufacture listed on the front of the element packaging (EX: MFG MONTH/YEAR). This allows the element to be installed on an aircraft at the end of its shelf life.

Step 1: Remove existing filter and gasket from carburetor heat box and discard.
Step 2: Inspect heat box for condition making sure valve shaft and bushing is not worn. If un-airworthy, repair with kit or replace worn carburetor heat box.
Step 3: Attach filter frame to carburetor heat box with 4 ea. screws, nuts and washers furnished. Torque each nut to where the neoprene gasket is compressed to 1/2 of its original thickness.
Step 4: Install filter element PN BA-8905 into frame, making sure contact is being made on all sides.
Step 5: Install grill with the 2 short screws (832-6) with internal lock washers PN MS35333-38. Place the grill so the grill is pressed against the element. The smooth part of the tabs will be facing forward.
Step 6: NOTE: After initial installation of filter assembly, fill out FAA form 337 for return to service. On future replacement of parts this form will not be required.

Servicing: Under normal conditions, replace filter element, PN BA-8905 after 100 hours use or 1 year intervals. Under severely dusty conditions, check daily and replace when element is 50% covered with foreign material. For Continued Airworthiness Instructions, see Form I-194.

Assembly Part Numbers:
Element BA-8905
Gasket BA-8910-02
Front Grill BA-8910-04