64-20 Tail Rotor Blades
Refer to R66 Illustrated Parts Catalog (IPC) Figure 64-1.
NOTE
Protect tail rotor assembly from damage when maintenance is
performed on workbench.
A. Removal
1. Remove tail rotor assembly per Section 64-10.
2. Refer to Figure 64-1. Remove hardware securing F029-1 blade assemblies to G062-1
hub assembly. Remove blades, spacers, and hardware; do not remove C138-2 bushings
unless required.
B. Installation
CAUTION
F029-1 tail rotor blades are a matched set from RHC. If only
one blade is being replaced, contact RHC Technical Support with
airworthy blade serial number for a matching replacement blade.
1. Inspect tail rotor hub per Section 64-30, as required.
2. Refer to Figure 64-1. If removed, apply light coat of approved primer per Section 20-
70 to outer surface of C138-2 bushings; while primer is wet, press bushings flush
with inboard side of hub inboard arm (bushings will seat properly with fastener torque
applied).
CAUTION
F137-2 spacer creates blade precone angle and must be
installed on the outboard side of blade, on the blade outboard
(spanwise) fitting.
3. Install tail rotor blades and spacers in hub. Assemble blades (if viewed from left side
of aircraft) for clockwise rotation, to cone toward tail rotor gearbox. Install hardware
securing blades to hub; install standard hardware on outboard fasteners for initial tail
rotor assembly static balance check. Tighten fasteners, but do not torque.
4. Touch-up bolt heads using approved paint per Section 20-70.
5. Perform tail rotor assembly static balance per Section 64-11.
Page 64.8 Chapter 64 Tail Rotor R66 Maintenance Manual 25 OCT 2010
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