CESSNA A185E — Wiring Diagram

This document provides installation instructions for the McFarlane aluminum elevator trim wheel kit designed for Cessna 180, early 182, and 185 aircraft. It addresses common issues with the original equipment manufacturer (OEM) trim wheels, such as the risk of shearing pins and cracking due to material fatigue. The new design aims to enhance reliability and safety by using rivets for assembly and aluminum for durability. The document includes a parts list, installation steps, and aircraft eligibility information, ensuring that users can correctly install the trim wheel kit on their aircraft models. It is intended for aircraft owners and maintenance personnel who are familiar with aircraft systems and maintenance procedures.

• The McFarlane aluminum trim wheel is designed to replace the OEM trim wheel in Cessna 180, early 182, and 185 aircraft.
• Installation requires specific parts, including an elevator trim wheel, backer bushing, sprocket, and various roll pins.
• The correct shaft must be selected based on the aircraft's serial number to ensure proper installation.
• The installation process involves removing the OEM trim wheel and following specific steps to install the new trim wheel.
• No changes to weight and balance are required after installation.