Guys,

The servos arrived, now how to assemble it? Doing it for the first time, there are a whole lot of questions....

Let see, the package contains a 17gm servo, 4 control horns, 2 black colored screws about 10mm in length (self thread?) 2 silver colored self thread screws, a pair of rubber bushes and 2 brass colored T type tube..

So I start looking and I am thinking that the rubber bushes are possibly padding for the screwing the servo into the body and that the 2 bright silver colored screws would be the one to fix the servo into the body..

So now that leave the brass T tube along with the control horns and black colored screws.

Question --
1) Where does the brass T tube go in?
2) When I try to slide the control horn into the servo it goes in the gears to about half way through with ease. Then do I leave it at that or apply pressure (also how much pressure)?
3) Can I saw off half of the control horn in case I do not require? For example, servo for rudder and elevator only need one portion of the horn in any case...

Pankaj

hi pankaj

see the link this person also asked the same question

http://www.indiarc.com/forum/index.php?topic=2817.msg17926#msg17926

sahil

OK Thanks, that explains the part about eyelets and gormets (some jargon )

But the question remains on mounting the servo arms (arms or horns??).

Pankaj

you mean the linking from n between the control surface n servo arm right  

sahil

here start reading this in the mean time let me find some good pictures to support

http://en.wikibooks.org/wiki/RC_Airplane/Control_surfaces_and_linkages

sahil

here u go,just check out some ARF plane reviews at rcuniverse u should be able to pick some tip/tricks

QuoteThe servo has a servo horn that is attached to its shaft. This horn is attached to a control surface, or engine throttle, via a push rod. When the servo rotates the horn translates the rotation into a linear movement that moves the control surfaces. The movement of the servo is directly proportional to the movement of the control sticks on the transmitter. So the control surfaces on the airplane move exactly the way you move the stick on the transmitter.

Quote from: sahilkit on September 10, 2009, 12:24:36 PM
you mean the linking from n between the control surface n servo arm right  

sahil

Actually wanting to know how much to push the servo arm into the gear and how much to tighten the screw without damaging the servo...

Pankaj

Push the servo arm gently but firmly till the end. Then tighten the arm locking screw with only a little force. Do not overtighten.

Thanks for the info,

Another question,

If I plan to use 2 servo for ailerons then need a Y cable right? or is it something more?

Pankaj

Depends, whether you are planniing to use different channels on both servos or operate them from same servo.
If you are using different channels no issues go ahead fix up and if the surfaces operate opposite reverese the servo travel direction. If using single channel then you need to connect through Y cable and pay attention to the orientation of the servo arms and pushrods etc