WATCH |
1 page 893 views | Post Reply |
RunRyder | RunRyder |
![]() |
![]() |
![]() rrKey Veteran Morgan Hill, CA. USA |
DFC head block - is mine out of spec? I have 2 Trex 600 helis with the 600 DFC head.The on the head of heli #1 perfect.But, the DFC head on heli #2 has a problem: I think the head block is out of spec.
When fully assembled, there is a noticeable play in the grips relative to the head block. It isn't much, but it is there.I've asked others to confirm, and they can feel it too. But, no one can say if it is bad enough to worry about - but they all think it isn't "normal".At first, I thought the head block's jesus bolt was loose or not clamped down tight. But, that is not the case.After close examination, it is clear the hard, black, dampers are not a good fit in the recess in the head block. They are loose and have radial play. They are so loose they will actually drop out of the head block.I have tried 2 packages of new 600 DFC dampers (4 per pack). In each pack, I will measure the diameter and pick the 2 that have the biggest diameters. But, there really isn't that much difference.I started with the V1 feathering shaft, but now I have the V2 feathering shaft (same as heli #1). The dampers fit fine on the feathering shaft - about the same as heli #1.There is no obvious damage on the head block. There are no scratches on the inner surface of the recess and they seem to be perfectly round. It just seems to be a fraction of a mm too large.I have ordered a new DFC head block. In the mean time, I wanted to know if anyone else has seen something like this? Believe 1/2 of what you see and none of what you hear. Fake News will be the downfall of our Republic! |
SHARE PM EMAIL GALLERY Attn:RR Quote |
![]() rrApprentice Stephens City,VA -USA |
|
SHARE PM EMAIL GALLERY Attn:RR Quote |
![]() rrKey Veteran Morgan Hill, CA. USA |
Believe 1/2 of what you see and none of what you hear. Fake News will be the downfall of our Republic! |
SHARE PM EMAIL GALLERY Attn:RR Quote |
![]() rrApprentice Stephens City,VA -USA |
|
SHARE PM EMAIL GALLERY Attn:RR Quote |
![]() rrKey Veteran Morgan Hill, CA. USA |
I used thin Saran Wrap and the dampers are now snug in the recess.But, I am concerned about durability.I looked at the Ziploc bag material and it is a little thicker and maybe a little more durable(?)I also noticed that the Saran Wrap left wrinkles and folds around the outer surface of the damper - that would make it tighter at the start, and I figure those will be areas that get worn down the fastest.I will check between flights (the wiggle test) to see if they loosen up again. Believe 1/2 of what you see and none of what you hear. Fake News will be the downfall of our Republic! |
SHARE PM EMAIL GALLERY Attn:RR Quote |
![]() rrApprentice Stephens City,VA -USA |
|
SHARE PM EMAIL GALLERY Attn:RR Quote |
Jim Patterson
rrApprentice AREA 51 Roswell |
|
SHARE PM EMAIL GALLERY Attn:RR Quote |
WATCH |
1 page 893 views | Post Reply |
RunRyder | RunRyder |
![]() |
![]() |
Saturday, March 6 - 9:01 am - Copyright © 2000-2021 RunRyder EMAIL • Enable Cookies