gear Warning Horn

n86121 · #1 01-02-20, 07:53 AM

On top of engine, side of throttle assembly.
Where throttle linkage connects.

An eccentric cam on the throttle shaft opens the switch.
Failure mode is “GAW GAW GAW GAW.”

frank.oconnor19 · #2 01-02-20, 05:28 PM

Found both switches. Interesting little setup. In either case the front engine switch is frozen, so regardless of the position of the cam switch remains closed. Rear engine operates normally.

Ordered a new switch. $20.00 so not so bad and frankly not worth bypassing.

Will install over the weekend.

frank.oconnor19 · #3 01-19-20, 05:44 PM

I did my tests last week and all is well. 20.00 on replacement wait h and a few wire connectors. Small piece of advice for anyone trying this....make sure you put a clean rag under the assembly. The lock washers and nuts are small and easy to drop. Much better if you have a limited area to search.

rmorris · #4 01-20-20, 01:18 PM

Quote:

Originally Posted by frank.oconnor19

I did my tests last week and all is well. 20.00 on replacement wait h and a few wire connectors. Small piece of advice for anyone trying this....make sure you put a clean day under the assembly. The lock washers Me nuts are small and easy to drop. Much better if you have a limited area to search.

You pulled the cessna part number out of IPC, or found a better source for replacement microswitch?

frank.oconnor19 · #5 01-20-20, 01:50 PM

I have the Cessna parts manual. So got the part number there.. it has been superseded so I used the newer part number.

cessnadriver · #6 01-20-20, 08:26 PM

Frank.
Just asking-but are you sure it's the gear horn?? I had a horn, thought it was the gear but found out it was the stall portion of the horn going off. I had pressure washed that wing after stripping! Water in the stall switch. FYI.

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