Throttle Connection

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sgoen · 10-25-2009, 09:37 AM

It seem this year I am having all sorts of problems with my throttle connector coming off at the servo. I am useing dubro kwik-grip e/z connectors and the keep coming off the servo. What do some of you flyers use for your connector at the servo?

MODE 1 · 10-25-2009, 09:42 AM

Ball joints both ends on threaded inserts

en1 · 10-25-2009, 09:56 AM

Ball links.... both ends.

Dewayne Vaughn · 10-25-2009, 10:30 AM

E-Z connectors will work.

Some potential problem areas...

cable not in line with servo
re-using plastic back
not setting the end points (or total travel) of the servo.

All three of these things can cause a failure.
Having said that, there are many better ways to connect the throttle arm to the servo arm, but they can all fail if the relationship of the linkage is not correct.
overtravel of the servo is probably the biggest cause of failure I've ever seen.

Dewayne

K-Bob · 10-25-2009, 10:31 AM

	Quote: Originally Posted by en1
	Ball links.... both ends.

+1

.60 Glow stuff is not well suited for gasser applications.

STLAV8R · 10-25-2009, 10:35 AM

	Quote: Originally Posted by K-Bob
	+1 .60 Glow stuff is not well suited for gasser applications.

+2 on both points.

Bunky F. Knuckle · 10-25-2009, 12:07 PM

Throw the EZ link AWAY!!!!! Will cause nothing but headaches!!!!

Ball links the way to go!!!

The Dirt Doctor · 10-25-2009, 04:55 PM

Several of the IMAc guys use SWB double lock servo arms at the servo. Ball links are used at both ends and held on by nylon insert lock nuts.

Getting the servo/thottle arm geometry is time consuming to get it correct but it is well worth the time spent. Your TX probably has end point adjustments of some kind. These should not be more that 5% different to keep the geometry correct. it is lots of trial and error, take your time and get-er-done.

Bobby aka TDD

Pcbang · 10-25-2009, 07:35 PM

	Quote: Originally Posted by The Dirt Doctor
	Several of the IMAc guys use SWB double lock servo arms at the servo. Ball links are used at both ends and held on by nylon insert lock nuts. Getting the servo/thottle arm geometry is time consuming to get it correct but it is well worth the time spent. Your TX probably has end point adjustments of some kind. These should not be more that 5% different to keep the geometry correct. it is lots of trial and error, take your time and get-er-done. Bobby aka TDD

Having said that, U can always use a Throttle curves to make Ur throttle control Good.
I.e half throttle Is half throttle and not full throttle, i have flown many planes and alot of guys dont bother with it and when ur 1/4throttle, U could be more than half on the carby

just my 2c.
get it close then use a throttle curve

classclown · 10-26-2009, 11:41 PM

I use heavy duty ball links on EVERYTHING. Notice a pattern? O slop!!

crazyjoe · 10-27-2009, 12:04 AM

Here is mine

Fritter · 10-27-2009, 01:42 AM

Ball links on everything including the choke.

bgold · 10-27-2009, 09:36 AM

Use ball links at both ends and bolt them in place. Don't use a cheap throttle servo or some old piece of crap you have laying around. What ever you are using on your flight surfaces is good enough for the throttle also.

bodywerks · 10-27-2009, 10:20 AM

Ball links, loctite, and RTV are involved in all my throttle servo/linkage installs.

KYDAVE · 10-27-2009, 10:36 AM

	Quote: Originally Posted by crazyjoe
	Here is mine

I thought that everyone removes that return spring on the carb to reduce the load on the servo????

10-25-2009, 09:37 AM	#1
sgoen Uber Contributer Join Date: Mar 2006 Location: Northern, IN Posts: 184	Throttle Connection It seem this year I am having all sorts of problems with my throttle connector coming off at the servo. I am useing dubro kwik-grip e/z connectors and the keep coming off the servo. What do some of you flyers use for your connector at the servo?

10-25-2009, 09:42 AM	#2
MODE 1 Has moved on Join Date: Jul 2008 Posts: 4,153	Re: Throttle Connection Ball joints both ends on threaded inserts

10-25-2009, 09:56 AM	#3
en1 Bad-ass Super Contributer! Join Date: Apr 2007 Location: San Antonio, Texas Age: 46 Posts: 228	Re: Throttle Connection Ball links.... both ends.

10-25-2009, 10:30 AM	#4
Dewayne Vaughn No ARF's allowed Join Date: May 2009 Location: Oklahoma City, Ok Posts: 118	Re: Throttle Connection E-Z connectors will work. Some potential problem areas... cable not in line with servo re-using plastic back not setting the end points (or total travel) of the servo. All three of these things can cause a failure. Having said that, there are many better ways to connect the throttle arm to the servo arm, but they can all fail if the relationship of the linkage is not correct. overtravel of the servo is probably the biggest cause of failure I've ever seen. Dewayne

10-25-2009, 12:07 PM	#7
Bunky F. Knuckle I'm done!!! Your loss! Join Date: Jan 2006 Location: TFC Posts: 3,338	Re: Throttle Connection Throw the EZ link AWAY!!!!! Will cause nothing but headaches!!!! Ball links the way to go!!! __________________ Insert witty comment here

10-25-2009, 04:55 PM	#8
The Dirt Doctor Bad-ass Super Contributer! Join Date: Nov 2006 Location: Vicksburg, MS Age: 65 Posts: 1,321	Re: Throttle Connection Several of the IMAc guys use SWB double lock servo arms at the servo. Ball links are used at both ends and held on by nylon insert lock nuts. Getting the servo/thottle arm geometry is time consuming to get it correct but it is well worth the time spent. Your TX probably has end point adjustments of some kind. These should not be more that 5% different to keep the geometry correct. it is lots of trial and error, take your time and get-er-done. Bobby aka TDD

10-26-2009, 11:41 PM	#10
classclown Bad-ass Super Pooper Join Date: Mar 2006 Age: 44 Posts: 2,200	Re: Throttle Connection I use heavy duty ball links on EVERYTHING. Notice a pattern? O slop!!

10-27-2009, 12:04 AM	#11
crazyjoe Bad-ass Super Contributer! Join Date: Jan 2006 Location: co Age: 51 Posts: 799	Re: Throttle Connection Here is mine Attached Thumbnails 82.9 KB · Views: 185

10-27-2009, 01:42 AM	#12
Fritter Bad-ass Super Contributer! Join Date: Aug 2009 Location: Rockwall Texas Posts: 348	Re: Throttle Connection Ball links on everything including the choke.

10-27-2009, 09:36 AM	#13
bgold Bad-ass Super Contributer! Join Date: Apr 2007 Location: United States, AZ, Sun City Posts: 1,201	Re: Throttle Connection Use ball links at both ends and bolt them in place. Don't use a cheap throttle servo or some old piece of crap you have laying around. What ever you are using on your flight surfaces is good enough for the throttle also.

10-27-2009, 10:20 AM	#14
bodywerks Bad-ass Super Contributer! Join Date: Jan 2006 Location: Tucson Age: 36 Posts: 5,229	Re: Throttle Connection Ball links, loctite, and RTV are involved in all my throttle servo/linkage installs. __________________ Gmoney and Smarks are spooners

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