Pitch Trim DA400 GFC700
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- Leesommer
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Pitch Trim DA400 GFC700
I'm getting a pitch trim flag on my PFD... I called diamond and they said might be sticking switch on the stick.... cleaned with contact cleaner.. seemed to work for awhile now when flying it won't even move the trim wheel... but during preflight trim works fine..... any ideas.?
- Steve
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Re: Pitch Trim DA400 GFC700
The elevator trim tab friction damper can get dirty and bind. Clean and adjust for proper friction value. That could be your problem...
- Leesommer
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Re: Pitch Trim DA400 GFC700
I'll give that a try today... I would assume you just remove the trim to gain access to it, Correct?
- Rich
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Re: Pitch Trim DA400 GFC700
Even before doing that just sit in the plane and runt the trim wheel full forward and back, seeing if it binds anywhere. Do this a couple of times - with the stick full forward and full back. I do this from time to time as part of pre-startup.
2002 DA40-180: MT, PowerFlow, 530W/430W, KAP140, ext. baggage, 1090 ES out, 2646 MTOW, 40gal., Surefly, Flightstream 210, Orion 600 LED, XeVision, Aspen E5
- Steve
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- smoss
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Re: Pitch Trim DA400 GFC700
Steve, do you have to take that assembly apart to clean it, or is it pretty straight forward and easily accessible?
Steve
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- Steve
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Re: Pitch Trim DA400 GFC700
Steve:
It is best if you disassemble it, but it can be (mostly) cleaned in place. Adjusting the friction block requires disconnecting the metal rod clevis (#200) from the actuator link (#10, 11). Then you use a fish scale to set the friction by adjusting the split teflon block (#300) according to the AMM.
It is best if you disassemble it, but it can be (mostly) cleaned in place. Adjusting the friction block requires disconnecting the metal rod clevis (#200) from the actuator link (#10, 11). Then you use a fish scale to set the friction by adjusting the split teflon block (#300) according to the AMM.
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Re: Pitch Trim DA400 GFC700
Got it thanks.... will do the back and forth.... first then clean in place..... Would you recommend a solvent or just wipe the rod clean?
- Rich
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Re: Pitch Trim DA400 GFC700
I just wipe it when I do. The friction block is nylon and I'm not confident I know what solvents would be safe to use.
2002 DA40-180: MT, PowerFlow, 530W/430W, KAP140, ext. baggage, 1090 ES out, 2646 MTOW, 40gal., Surefly, Flightstream 210, Orion 600 LED, XeVision, Aspen E5