64-40 Tail Rotor Hub
64-41 Bearing Replacement
Refer to R66 Illustrated Parts Catalog (IPC) Figure 64-1.
A. Removal
1. Remove tail rotor assembly per Section 64-10.
2. Remove tail rotor blades per Section 64-20.
3. Refer to Figure 64-5. Press bearing(s) from hub using MT556-11 bearing removal
(and installation) tools.
B. Installation
1. Inspect tail rotor hub per Section 64-42.
CAUTION
Elastomeric bearings are a slight press fit in tail rotor hub bores.
Inspect bores for fretting; if fretting is detected, hub is unairworthy.
2. Refer to Figure 64-6. Using Q-tip, apply light coat of approved primer per Section
20-70 to bottom of hub bearing bore. Apply a thin line of primer to center of bearing
outside diameter. While primer is wet, press bearing into hub using MT556-11
bearing removal and installation tools. Wipe away excess primer.
3. Repeat steps for second bearing, as required.
64-42 Inspection
1. Remove tail rotor blades per Section 64-20, and inspect blades per Section 64-30.
2. Remove elastomeric bearings per Section 64-41.
3. Clean G062-1 tail rotor hub using approved solvent per Section 20-70.
4. Visually inspect for indications of damage, wear, nicks, dings, and corrosion. Check
arms for straightness, bolt holes for elongation, and bearing bores for fretting or galling.
Corrosion is not permitted on clamp-up surfaces.
5. For suspect areas, locally remove paint from hub using approved paint stripper per
Section 20-70; dye penetrant or fluorescent penetrant inspect per Section 20-40.
6. Touch-up bare metal using approved materials per Section 20-70.
7. Install elastomeric bearings per Section 64-41.
8. Install tail rotor blades per Section 64-20.
25 OCT 2010 R66 Maintenance Manual Chapter 64 Tail Rotor Page 64.13
To Next Page
Loading...