10-13 Main Rotor Blade Supports
Refer to R66 Illustrated Parts Catalog (IPC) Figure 10-7.
CAUTION
Do not allow strut assemblies to hang from cradle assemblies
installed on main rotor blades. Support strut assemblies during
strut removal or installation.
A. Removal
1. Refer to Figure 10-2. Remove 92384A034 retaining pins securing MT347-7 strut
assembly to MT564-2 cradle assembly and MT348-7 clamp assembly; remove strut
assembly. Remove cradle and clamp assemblies.
2. Remove retaining pin securing one MT347-8 strut assembly to landing gear eyebolt,
then remove pin securing same strut to MT564-1 cradle assembly. Repeat step to
remove second strut assembly.
3. Detach MT568-3 strap assembly hook and loop tape near roof-mounted cleat and
unthread strap from cleat. Remove cradle assembly.
B. Installation
NOTE
B221-3 attachment installation (landing gear eyebolts and roof-
mounted cleat) is required for mounting blade supports.
1. Refer to Figure 10-2. Position main rotor blades approximately fore and aft.
2. Install MT564-1 cradle assembly inboard of forward blade extended tab, with MT568-
3 strap assembly attached. Thread opposite end of strap assembly through roof-
mounted cleat and secure strap hook and loop tape.
3. Secure one MT347-8 strut assembly to cradle assembly, then to landing gear eyebolt,
using 92384A034 retaining pins. Repeat step to secure second strut assembly.
4. Install MT564-2 cradle assembly inboard of aft blade extended tab. Install MT348-7
clamp assembly against forward edge of rivets between tailcone bays 3 and 4.
5. Secure MT347-7 strut assembly to cradle and clamp assemblies using retaining pins.
Verify strut is approximately vertical.
6. Engage rotor brake. If desired, mark cradle assembly location on blade using felt-tip
marker, to facilitate future installation.
25 OCT 2010 R66 Maintenance Manual Chapter 10 Parking and Storage Page 10.5
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