Geraint,
1.I'm with the others on this - use a bolt.
2. Forget the fiddling and the turnbuckles, here's the easy way:
Attach the rear of the wires to the plastic bits as instructed.
Attach the front ends of the wires to TP18 with the swages in place but
don't swage them up yet.
Using bulldog clamps (small U bolts available from your hardware store),
secure the wires' forward ends to the lugs on TP18 so that they can be
adjusted by pulling them through. (Fit the bulldog clips rear of and clear
of the loose swages) Apply a nominal and equal tension to both wires then
tighten the clamps.
Remove the lower retaining bolt of TP18 and swing it up through about 40
degrees.
By exploiting the difference in rotation centres between TP18 and the
wires' rear attachments, you can now apply tension by simply lowering TP18.
If the arm swings to one side, raise it to loosen the wire, adjust the
proper wire, then lower again to check.
Using this technique you can have all the tension you need, and set each
wire to precisely equal tensions. (Mine's tuned to C sharp, but you can
use D if you're a Bach fan).
When all's set, squeeze up the swages and remove the bulldog clamps.
Be careful not to overdo the tension - it may be possible to bend the
tailplane toque tube. Check it's free before final swaging.
Dave Simpson
----------
> From: GERAINT L OWENS <lloyd.owens@lineone.net>
> Subject: Tailplane Mass Balance Cables
> Date: 14 February 1999 20:53
>
> Two simple queries:
> 1 What technique is used to insert the 6mm roll pin in the TP18 to stop
> the weights from falling off. Mine won't go in - do I need a special
tool,
> or what? I presume the part called SPIROL is the same as the 6mm roll
pin,
> although there is nothing in the manual to connect the two.
>
> 2 Secondly, with regard to the wires. One I have a nice tension in.
> The other I have now done three times (!) and have still not matched the
> tension in the first. In fact, on this wire I have edged the cable
(where
> it is wound round the white plastic collar) about 1/4" further outboard
from
> the pins, so that the tension in this wire matches the first. It seems
to
> hold in place here; but is this acceptable. Are the wires simply a
> safeguard in case the TP18 comes loose, or is it crucial that both wires
are
> nicely and equally tensioned? This is easier said than done; one can't
> help but wonder if there wasn't a better and easier way of stabilising
the
> TP18.
> Lloyd Owens (Bu. No. 097)
>
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