Already a member? Please login below for an enhanced experience. Not a member? Join today
Menu

New alternator coupling tools announced

A new tool could help mechanics more safely install and inspect alternator drive couplings on Continental Aerospace Technologies piston engines.

Approach Aviation announced a set of tools to install, remove, and test alternator drive couplings found on many Continental Aerospace Technologies engines. Photo courtesy of Approach Aviation.

Approach Aviation announced “a zinc-coated coupling spanner wrench and unique coupling gear socket” on April 12. “Together, these tools allow the coupling to be held in place (mounted on the alternator or free-standing) while the coupling gear slippage is checked with a calibrated 3/8” torque wrench (as specified in the engine maintenance manual),” the company said.

The coupling protects the engine from being damaged in the event of an alternator failure. However, “an out-of-tolerance or improperly installed coupling can lead to catastrophic engine failure,” the company said.

Approach Aviation also said that without having specialized tools, it was difficult for shops to inspect and diagnose coupling failures, leading to inaccurate assumptions that the alternator had failed.

The coupling on these engines shouldbe inspected every 500 hours or whenever the alternator is removed from the aircraft, according to Approach Aviation.

The tools are being offered at an introductory price of $169.95 through Approach Aviation, Aircraft Tool Supply, and Aircraft Spruce & Specialty.

Alyssa J. Miller

Alyssa J. Cobb

AOPA Senior Director of eMedia and Online Managing Editor
AOPA Senior Director of eMedia and Online Managing Editor Alyssa J. Cobb began working at AOPA in 2004, is a flight instructor, and loves flying her Cessna 170B with her husband and son. Alyssa is also co-host of AOPA Live This Week.
Topics: Sun n Fun, Ownership, Maintenance

Related Articles