Robinson R22 Beta — Maintenance Manual

This document is the maintenance manual for the Robinson R22 Beta helicopter, specifically focusing on the powerplant and related systems. It includes detailed instructions for engine removal, installation, and maintenance procedures for various engine components.

• R22 helicopters are powered by Lycoming engines with varying horsepower ratings.
• The O-320-B2C engine in R22 Beta models is rated at 160 horsepower.
• All engines are derated to a maximum continuous horsepower of 124.
• Cooling is provided by an engine-mounted fanwheel and fiberglass scroll.
• The document includes troubleshooting procedures for engine-related issues.
• Carburetor heat is controlled via a cable-operated guillotine valve.
• Battery charging is supplied by a 60-amp belt-driven alternator.
• Engine removal and installation require specific shimming for proper alignment.