Oops--What did I do wrong!

Oops--What did I do wrong!

Post by Veldyjon » Tue, 21 Jul 1998 04:00:00



I just installed some KSJ paddles, the upgraded (the newer version)spindle
shaft and harder *** dampeners. Now, when I give sharp aft cyclic in fast
forward flight, the heli rolls to the left.  I didn't think I tweaked anything
else when I installed the new parts.  Any suggestions?
 
 
 

Oops--What did I do wrong!

Post by Eric Jaakkol » Wed, 22 Jul 1998 04:00:00


My heli was doing the exact same thing, I found out one of the clutch flybars
snaped the***holding it to the drive shaft (which is now very stuck).
It's probably not the same thing, but you never know.  It never shook before and
after hover throttle.

Good luck.

BTW, how the **** do you get those little screwes out when they're sunkin in on
both ends.

Later.
Eric.

Quote:

> I just installed some KSJ paddles, the upgraded (the newer version)spindle
> shaft and harder *** dampeners. Now, when I give sharp aft cyclic in fast
> forward flight, the heli rolls to the left.  I didn't think I tweaked anything
> else when I installed the new parts.  Any suggestions?


 
 
 

Oops--What did I do wrong!

Post by Eric Jaakkol » Wed, 22 Jul 1998 04:00:00


Hmm, I'm a little cautios about trying to bend that thing myself in fear of ruining
it.
Actually, it snapped the bolt holding it to the fan drive thing, so the bolt was
flush on both ends with nothing to***into.  Luckily Coast to Coast was able to
drill out and remove the broken***end, at a carge of 2 dollars, but they kind of
damaged some of the threads, so I don't know if it will last very long now.  I guess
I should order a new fan assembly now so I'll have one when it breaks again.
Quote:



> >My heli was doing the exact same thing, I found out one of the clutch flybars
> >snaped the***holding it to the drive shaft (which is now very stuck).
> >It's probably not the same thing, but you never know.  It never shook before and
> >after hover throttle.

> Are you talking about one of the clutch shoes?  If so, read on:

> I have helped set up a number of nexxi, and I've found that the clutch
> engages way too late.  The problem is the gap between the clutch shoes
> and the lining is too much.  This inevitably causes the clutch shoes
> to fail fairly quickly because they have to bend so much to fully
> engage the clutch.  It also puts a lot of stress on the bolt that
> holds the shoe to the fan hub.

> The trick is to pre-bend the shoes so they engage at a lower RPM.  The
> *secret* trick is to bend the shoes, then AFTERWARDS replace the
> screws.  Viola, a clutch that will last a long time.

> >BTW, how the **** do you get those little screwes out when they're sunkin in on
> >both ends.

> Get yourself a hardened 1.5mm wrench and use that exclusively.  The
> L-shaped wrenches, or Bondhus wrenches are junk that constantly round
> off their edges.  MIPS hardened wrenches are the best.  These are
> identical to the THORP wrenches that were discontinued a few years
> ago.

> -Mark Johnson  MA field rep.

 
 
 

Oops--What did I do wrong!

Post by Mark Johns » Thu, 23 Jul 1998 04:00:00




Quote:
>My heli was doing the exact same thing, I found out one of the clutch flybars
>snaped the***holding it to the drive shaft (which is now very stuck).
>It's probably not the same thing, but you never know.  It never shook before and
>after hover throttle.

Are you talking about one of the clutch shoes?  If so, read on:

I have helped set up a number of nexxi, and I've found that the clutch
engages way too late.  The problem is the gap between the clutch shoes
and the lining is too much.  This inevitably causes the clutch shoes
to fail fairly quickly because they have to bend so much to fully
engage the clutch.  It also puts a lot of stress on the bolt that
holds the shoe to the fan hub.

The trick is to pre-bend the shoes so they engage at a lower RPM.  The
*secret* trick is to bend the shoes, then AFTERWARDS replace the
screws.  Viola, a clutch that will last a long time.

Quote:

>BTW, how the **** do you get those little screwes out when they're sunkin in on
>both ends.

Get yourself a hardened 1.5mm wrench and use that exclusively.  The
L-shaped wrenches, or Bondhus wrenches are junk that constantly round
off their edges.  MIPS hardened wrenches are the best.  These are
identical to the THORP wrenches that were discontinued a few years
ago.

-Mark Johnson  MA field rep.