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T-REX 500 › TREX 500 turnbuckle question
02-17-2014 10:12 PM  3 years agoPost 1
cessnapilot3

rrNovice

shelbyville, in

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In the attached pic of a DFC head, there is a portion of the turnbuckle (indicated by red arrow) that screws into metal and a side that turns into a nylon ball link. Am I correct in understanding from the manual that the turnbuckle should be lock-tited on the metal side and only adjusted on the nylon side?

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02-17-2014 10:42 PM  3 years agoPost 2
rcflyerheli

rrKey Veteran

Granbury, TX USA

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Yes. It isn't a true turnbuckle (unless they have changed over since I built my 700 last year). But even if it was a true turnbuckle, screwing the part that goes into the aluminum housing all the way in takes away from the adjustment ability. But the part that goes into the metal DFC part needs to be loctited or it will vibrate and wear out the threads in the aluminum housing.

I made the decision that I would need to replace the housings in the event of a crash, and went ahead and secured mine with JB weld. Those suckers should be good to go forever, unless I crash.

Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

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02-21-2014 01:16 PM  3 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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Yes, it screws completely into the pitch arm. And gets loctite to hold it in place.

There is a short bit of unthreaded shank that when properly assembled, goes up into the arm and provides solid support for the link.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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