64-20 Tail Rotor Blades
NOTE
Protect tail rotor assembly from damage when maintenance is
performed on workbench.
A. Removal
1. Remove tail rotor assembly per § 64-10.
2. Refer to Figure 64-1. Remove hardware securing F029 blade assemblies to G062-1
hub assembly. Remove blades, spacers, and hardware; do not remove C138-2
bushings unless required.
B. Installation
CAUTION
Both tail rotor blades must be same part number, either F029-1
or F029-2.
CAUTION
Tail rotor blades are a matched set. If only one blade is being
replaced, contact RHC Customer Service with airworthy blade
serial number for a matching replacement blade.
1. Inspect tail rotor hub per § 64-30, as required.
2. Refer to Figure 64-1. If removed, apply light coat of approved primer per § 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 § 20-70.
5. Perform tail rotor assembly static balance per § 64-11.
Page 64.8 Chapter 64 Tail Rotor APR 2019
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