Donaldson AFS-BH430-IBF-ICA, Instructions Manual

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AFS-BH430-IBF-ICA Aerospace Filtration Systems, Inc.
Revision: B Proprietary Information
Use or disclosure of this material is subject
42
AFS Bell 230 and 430 IBF
to the restrictions on the title page Instructions for Continued Airworthiness
8.5.3.7 Function Check
CAUTION
THIS PROCEDURE INTRODUCES THE POSSIBILITY OF ENGINE
FOD.
CAUTION
IMPROPER USE OF THE ALTIMETER TEST SET COULD RESULT IN
DAMAGE TO THE FILTER MAINTENANCE AID.
CAUTION
IMPROPER USE OF THE ALTIMETER TEST SET SUCH AS PULLING
AN ALTITUDE OF GREATER THAN 1880 FEET ABOVE FIELD
ELEVATION WILL DAMAGE THE FILTER MAINTENANCE AID.
a.
Gain access inside the L/H or R/H Air Intake Cowling, whichever is applicable.
b.
Connect the Barfield (or equivalent) altimeter test set vacuum system to the plenum tube
assembly, by slipping a piece of 3/16 inch ID vinyl tubing over the end of the tube assembly.
Ensure that the fit between the tubing and tube assembly is tight, i.e., no leakage.
c.
Reset the Filter Maintenance Aid by depressing the yellow button marked “PUSH TO RESET”
located on the end of the filter maintenance aid (See Picture 1).
d.
The maintenance aid should indicate in the red zone within the following range:
Test Station Elevation (ft)
Test Method 0 2000 4000 6000 8000 10000
Low Pressure Calibrator
(inches of H
2
O)
11.0 ± 1.1
Altimeter Test Set
(ft above test station elevation)
760 ±80 ft 800 ±80 ft 850 ±90 ft 910 ±90 ft 970 ±100 ft 1030 ±100 ft
8.5.3.8
Installation
a.
Gain access inside the L/H or R/H Air Intake Cowling, whichever is applicable.
b.
Position the Filter Maintenance Aid into the mount assembly.
c.
Install hardware and connect Tube Assembly.