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  #1  
Old 06-20-2022, 06:23 AM
JKevin JKevin is offline
 
Join Date: Aug 2015
Location: West Liberty, Kentucky
Posts: 124
Default 430W stuck in tray

Over the weekend I needed to remove my 430W and tray for some wiring as part of an avionics upgrade. The unit was installed by someone else a few years, and has never been removed from the tray.

After loosening the retention screw, the cam comes out of the way, and the radio can be pulled out about 1/2" before coming to a hard stop. It doesn't feel like a bind, but a solid metal-to-metal end point. It is hard to see much in / around the tray, but nothing seems amiss.

The APIA who installed the unit looked it over and didn't find anything else, he does a fair bit of avionics work and has never seen such.

Anyone run into similar / have any suggestions?

Thanks in advance

Kevin
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  #2  
Old 06-20-2022, 06:46 AM
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Walt Walt is offline
 
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Location: Dallas/Ft Worth, TX
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Default

Cam is most likely hitting the panel cutout, run into this all the time, itís caused by improper tray mounting.
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  #3  
Old 06-20-2022, 06:59 AM
JKevin JKevin is offline
 
Join Date: Aug 2015
Location: West Liberty, Kentucky
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Default

Thanks, I am not at the airplane so will look again. ***If memory serves***, though, there is actually no panel in front of the mounting tray; the unit sits about 1/4" over the second com radio, I remember seeing the cam and the bottom of the tray and there is no obstruction there. I will look again.
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  #4  
Old 06-20-2022, 09:27 AM
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RONSIM RONSIM is offline
 
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Location: Largo, FL
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Default Cam has two lobes?

Most I am familiar with has two lobes at 90* -- after sliding 1/2 inch, turn the screw another half turn.
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  #5  
Old 06-20-2022, 07:30 PM
JKevin JKevin is offline
 
Join Date: Aug 2015
Location: West Liberty, Kentucky
Posts: 124
Default Still stuck...

Quote:
Originally Posted by RONSIM View Post
Most I am familiar with has two lobes at 90* -- after sliding 1/2 inch, turn the screw another half turn.
I was hopeful this was the issue, I do remember the cam having two lobes. So I rushed to the airport tonight to check... No joy. Both cams come out of the way, there is still a hard stop.

It's hard to localize sounds in the confines of the cockpit, but it sounds as if the "thunk" is coming from the rear of the unit.

Thanks for everyone who commented, would appreciate any other suggestions if you have experienced this issue.

Kevin
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  #6  
Old 06-20-2022, 07:42 PM
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Ralph Ketter Ralph Ketter is offline
 
Join Date: May 2005
Location: La Luz, NM
Posts: 58
Default Mounting Screw?

Could there be a screw sticking into the tray? Maybe a mounting screw for something else near the radio stack.
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  #7  
Old 06-20-2022, 08:04 PM
noelf noelf is offline
 
Join Date: Nov 2007
Location: Solomons, MD.
Posts: 1,283
Default

Do you have any avionics above or below the 430? If so, remove those units and see if that helps. It can also provide additional viewing angles to see what is interfering with the removal of the 430.
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  #8  
Old 06-20-2022, 08:44 PM
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N804RV N804RV is offline
 
Join Date: May 2013
Location: Mount Vernon, Wa
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Default

Garmin's tray is about (a red you-know-what hair) wider than many instrument panel cutouts. This causes it to bow slightly. That coupled with any amount of pressure on the back of the tray can make it so that once the cam lobe is no longer pushing the unit out of the tray connector, there's not enough leverage to overcome the tension.

If the back of the tray is anchored to the aircraft substructure, you may need to loosen it to reduce the tension on the tray.
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Last edited by N804RV : 06-20-2022 at 08:47 PM.
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  #9  
Old 06-21-2022, 05:28 AM
larryMar larryMar is offline
 
Join Date: Nov 2018
Location: C77, Il
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Default

It must be a teenager in airplane years, and doesn't want the competition of new avionics....
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  #10  
Old 06-21-2022, 05:40 AM
thiggins thiggins is offline
 
Join Date: Mar 2020
Location: Saluda,NC
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Default

Bigger hammer?

(Sorry)

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