User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
TCAS 3000 Traffic Alert and Collision Avoidance System
34−43−23
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Page 9−4
15 Dec 2005
(e) Prime
NOTE: The pot life of the primer after mixing components is 8 hours.
1
Cover each Torx screw head with an adhesive dot to prevent paint from
being applied to the screw heads.
2
Mix epoxy primer components in a 1:1 ratio under slow agitation.
3
Allow 15 minutes before spraying.
4
Spray one light coat − wet film thickness of 1.5 mils.
• Viscosity − 18 to 20 seconds No. 2 Zahn test
• Gun orifice − 363−A needle or equivalent
• Fluid pressure − 5 to 10 psi recommended
• Air pressure − 50 psi recommended.
(f) Primer Cure
Allow the primer to air dry for a minimum of one hour and a maximum of 4 hours
before applying the top coat.
(g) Paint
1
Mix paint in a base (coating) to catalyst ratio of 6:1 under slow agitation.
NOTE: The percentage of reducer used can vary to meet the applicable color
standard.
2
Spray one light tack coat and allow to dry 15 minutes.
• Viscosity − 20 to 22 seconds No. 2 Zahn test
• Gun orifice − 363−A needle or equivalent
• Fluid pressure − 5 to 10 psi recommended
• Air pressure − 50 psi recommended.
3
Apply final top coat − total wet film thickness of 3.5 to 4.0 mils.
(h) Drying Cycle
The antenna must air dry overnight or be baked at 85 degrees Celsius for 30
minutes minimum before flying. Remove the adhesive dots from the heads of
the Torx screws.
(3) Performance Verification Testing
Perform a ramp test per approved aircraft maintenance procedure on the TCAS
system to ensure the bearing accuracy is within specification after the coating
application.