Cessna T210L Nose Gear Actuator

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1 month 3 days ago #3097 by Michael Styer
Replied by Michael Styer on topic Cessna T210L Nose Gear Actuator
Couple of thoughts here Michael; The 210L nose gear door position does not “communicate” in any way with the green light, so that makes me wonder.

Also; If you were using the hand pump and it “fixed” the issue I would want to check the power pack pressure switch. Any time the system pressure falls below a defined limit, the pump should re-energize to build the pressure back up when the gear handle is down and the master switch is on. If your door valve was leaking, the pump should have energized to re-pressure the system.

I would check all the gear down limit switch tolerances. I would also wiggle the pig tail of each switch to see if there is a broken wire where the leads exit the switch. Have someone monitor the green light as you wiggle the wires.

I had a broken wire on my nose gear squat switch that resulted in an intermittent gear retraction issue. (Green light worked as designed because this is not a part of that circuit) The wire casing/insulator looked fine. The wire was broken inside of the casing therefore I couldn’t visually detect it. Just by happenstance I discovered the issue.

Every time you operate the landing gear those wire leads out of those micro switches flex. Eventually, 40+ year old wiring will fail under these conditions. That’s what happened to me. I replaced every limit switch in my system.

Hope this helps.

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6 months 6 days ago #2867 by STEVE ELLS
Replied by STEVE ELLS on topic Cessna T210L Nose Gear Actuator
Hi Michael;
Thanks for posting the update.

Much appreciated,

Best,
Steve

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  • Michael Martines
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6 months 1 week ago #2864 by Michael Martines
Replied by Michael Martines on topic Cessna T210L Nose Gear Actuator
Well sports fans it looks like the problem was a leaking nose gear door actuator loosing pressure. The actuator was rebuilt and it seems to now be working fine.

Lesson learned is to take copious notes and research to help your A and P troubleshoot and solve the problem.

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  • DOUGLAS VINCENT
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6 months 2 weeks ago #2853 by DOUGLAS VINCENT
Replied by DOUGLAS VINCENT on topic Cessna T210L Nose Gear Actuator
What is the latest with your nose gear?
Have you found the problem and solution?

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7 months 2 weeks ago #2809 by STEVE ELLS
Replied by STEVE ELLS on topic Cessna T210L Nose Gear Actuator
Eric,
You may have mis read my post about nose gear doors.

The main gear door removal STC does not call for the removal of the nose gear doors.

The point that is critical is: are the nose gear doors actuated by the original hydraulics, or has the nose gear door hydraulics been removed and replaced with the mechanical nose gear door closing system.

Thanks
STeve

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  • PAOLO MONTANARI
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7 months 2 weeks ago #2806 by PAOLO MONTANARI
Replied by PAOLO MONTANARI on topic Cessna T210L Nose Gear Actuator
OK now it is more understandable: you have a modification STC for the doors in the M model.
Those mods frequently do not modify the hydraulic line and power pack which thinks to still have all the doors, and it is a source of troubles sometimes.

Keep us informed,we are curious to know

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