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pullable breakers

TheTurtle

By TheTurtle
in Vintage Mooneys (pre-J models)

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TheTurtle Experienced

TheTurtle

Posted
Posted

I hear a lot of talk about "pull the breaker" for this and that emergency.  Ive looked at my breakers every time I start up for the last 4 months and just realized mine dont seem to be pullable..  I noticed this because I had a short in my IP lights which popped the IP lights breaker.  But for testing I couldnt pull that breaker, so the only way to stop the smoking of my rheostat was MASTER = off.

Thats fine in the hangar.  At 10000feet Id prefer to just pull the breaker and keep my radios and other stuff working.

Is it normal to have these breakers that arent pullable?  Can they be replaced with pullable ones?  Looks like a real nightmare on the breaker bus with wires and zip ties and tiewrap.

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N6758N Mentor

N6758N

Posted
Posted

Those were standard equipment at the time our birds were built, nothing wrong with them as long as they work , but they are certainly not as desirable as pull type breakers. It is very doable to replace them all with new style Klixon breakers. Probably $15-25 per breaker plus maybe 4-6 hours of labor.

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carusoam Grand Master

carusoam

Posted
Posted

There was a time when circuits and breakers worked perfectly and pilots didn't ever want to know their status...

The president lived in a place called Camelot, and circuit breakers were hidden behind wood colored covers.

A single EGT gauge with no numbers was calibrated whenever the pilot felt like it....

Then reality struck!

Circuit breakers were modernized, engine monitors were invented, and GPSs were installed using all of the new technology.  :)

For fresher ideas, look at some slightly newer M20s.... Many new technologies even use less power than the originals like digital radios and LED lights.

Aircraft Spruce had the parts.

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TheTurtle Experienced

TheTurtle

Posted
  • Author
Posted

Looks like a project to add to my list.  Its really scary back there by the breakers and switches.  So many ancient wires super tightly tiewrapped together.  Maybe Ill wait until I get the gumption to redo that whole side of the panel.  The ugly IP cover has got to go but the sheetmetal underneath looks worse with the glue and holes.  After I get my CFI rating Ill have more time for the plane to be out of service.  Got to get my  hours now!!

TheTurtle Experienced

TheTurtle

Posted
  • Author
Posted
Just now, 1964-M20E said:

good luck yes a pain to replace

 

The cover was the first thing removed on my F I like to be able to easily verify CB in as on my check list.

 

 

yea I cut the ugly wood grain cover off.  Didnt unscrew it because it was imporsible to get to the nut on the back without moving wires.  So I still have the hinge but no cover.

I was actually talking about the hideous black asphalt textured thing that covers the whole right side IP.  Left side is awful too but the right side is worse.  Want to jsut have a metal IP with only the holes needed...  Add it to the list jeeves.

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Hank Grand Master

Hank

Posted
Posted

This is what pullable breakers used to look like. Can't comment on what they look like now, I'm guessing these are c2002-2003.

What I can't get over is how much those stupid colored rings sell for! The big blue thing holds a pen, and costs less than one colored breaker ring . . .

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carusoam Grand Master

carusoam

Posted
Posted (edited)

When pulled, they are visually easy to recognize.  The stem is a bright white and stands out when looking for it...

Best regards,

-a-

Edited by carusoam
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