Robinson Helicopter Company RTR 660, Maintenance Manual

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1-80 Assembly Instructions for R66 Helicopter Crated for Export
NOTE
Aircraft assembly to be performed by a certificated mechanic.
1. Remove top of cabin assembly crate. Remove wall marked “A” by removing lag bolts
painted black. Remove empennage assembly. Remove remaining walls. Remove all
parts, except cabin assembly, from crate base. Open crate containing blades, skid tubes,
and tailcone.
2. Refer to R66 Illustrated Parts Catalog (IPC) Figure 32-1. Install hardware securing forward
and aft strut assemblies (cross tubes installed) onto skid tubes. Standard torque bolts per
Section 20-32 and torque stripe per Figure 5-1.
3. Remove tailcone cowling per Section 53-23. Remove engine cowling per Section 53-21.
4. Remove shipping supports (ty-raps, foam, tape, etc.) from main rotor gearbox compartment,
but leave cannon plugs taped and fluid line dust caps installed. Remove engine air intake
cover by opening air filter bypass door and pulling string and cover through the door.
Remove main rotor gearbox mounting hardware, nylon spacers, and upper frame strut
assemblies.
5. Remove top of main rotor gearbox crate and position crate so gearbox is upright. Refer
to Section 7-20. Install hoisting equipment and lifting fixture or nylon rope on main
rotor hub. Remove hoist slack to support gearbox, remove lag bolts securing gearbox to
wooden divider, and carefully hoist gearbox from crate (do not damage pitot tube).
6. Install main rotor gearbox per Section 63-20 steps 1 thru 9, but do not remove hoisting
equipment and lifting fixture or nylon rope.
7. Perform (engine driveline) forward flex plate shimming per Section 63-11.
8. Refer to Section 7-20. Remove hoist slack to support cabin assembly, remove lag and
carriage bolts securing metal angles to crate, and hoist cabin & attached metal angles off
of crate base.
CAUTION
Do not lift helicopter and attached crate using main rotor hub;
damage to main rotor gearbox and frames could result.
9. Remove metal angles from cabin assembly landing gear attach points. Install landing gear
assembly per Section 32-10.
SEP 2012 R66 Maintenance Manual Chapter 1 General
Page 1.5