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2.4G Spektrum Radios Spektrum 2.4 Gigahertz Radios and Technology


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Old 10-22-2013, 08:22 PM   #1 (permalink)
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Default Spektrum DX18 and DX18QQ scroll wheel

Needless to say that I was not a happy camper when my DX18QQ scroll wheel quit working last night. Upon disassembly, I discovered that the small plastic shaft that fits on the end of the wheel and spins the pot broke off the end of the wheel. Which disabled the scrolling process. I was able to fix it in about an hour.

Below are a few photos.

First Photo shows the scroll wheel and board assembly location inside the TX at the end of the hex driver.

Second and third photos show the wheel, broken shaft and board disassembled.

Fourth photo shows the end of the scroll wheel where the shaft broke off.

Fifth photo shows the head of the broken shaft fitted into dubro air line (hose). The air line was cut slightly above the head of the broken shaft to make a friction fit inside the end of the scroll wheel and allow some flexing when pressing the scroll wheel. The narrow part of the shaft fits into the pot.

Last photo shows the wheel, broken shaft and board reassembled.

Apparently, pressing on the scroll wheel to activate the selection switch, causes flexing of the shaft that fits into the pot to break off of the wheel. A radio that is more than a $1000.00 and only a few months old should not have part breakage issues.....
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Old 10-29-2013, 06:51 PM   #2 (permalink)
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Mine has also done this so I contacted horizon and they sent a replacement out for me to fit myself.
I was thinking of cutting an old Allen key shaft down and drilling into the roller and epoxying it in on the old one, just I case the new one breaks again
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Old 10-30-2013, 01:49 PM   #3 (permalink)
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Quote:
Originally Posted by digger951 View Post
Mine has also done this so I contacted horizon and they sent a replacement out for me to fit myself.
I was thinking of cutting an old Allen key shaft down and drilling into the roller and epoxying it in on the old one, just I case the new one breaks again
There were three different ways I could have fixed it. But common sense got a grip on me, and forced me to go with a flexible repair. The way it should have been designed in first place. I didn't want to go with a rigid repair, or a replacement part from HH that would result in repairing it again....
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Old 01-01-2021, 11:47 AM   #4 (permalink)
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I am so glad i came across this. This method took 5 minutes to fix my dx18. i happened to have some air hose around that fit right in there. one note is it cant extend out past the roll wheel because the shaft has to fit into a grove in the transmitter as a bearing.
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Old 01-20-2021, 01:34 PM   #5 (permalink)
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Default DX18 roller wheel button

I know this thread is dead, but I'm glad I found this post as well..... I'm waiting to hear from HH regarding replacement charge or if I can get a new wheel instead. I'll send in both my DX18s for service when I sell them after an upgrade......

I used a 4mm plastic control rod tubing. it was tight for the fit, but when I inserted the broken roller piece flush. Then it was like a pressed bearing install. Used the remaining tube to press the rod in to the tube piece, then into the wheel.
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