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100 Class Electric Helicopters 100 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar. |
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#1 (permalink) |
Registered Users
Join Date: Apr 2018
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![]() Does anyone know an easy way to install the little spur gear onto the motor shaft on the xk k110? Seems like a very tight fit. Somehow the stock one got loose and started sliding from the main gear. Didn't think that was possible
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#2 (permalink) |
Registered Users
Join Date: Nov 2016
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![]() They are sort of the safety valve on the K110. Use a knife to gently pry the old one off. Notice the notch in the hole and shaft, line them up, be careful not to push on the blade grips.
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#4 (permalink) |
Registered Users
Join Date: Oct 2007
Location: uk
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![]() Clean the shaft and gear with some meths then use a toothpick to put the smallest dab of loctite retainer on the tip of the shaft and slide the pinion into place with a twist. I've just had the same problem myself but with a bigger motor and it's holding up ok.
Last edited by evolusia; 05-02-2020 at 08:10 AM.. |
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#5 (permalink) |
Registered Users
Join Date: Oct 2007
Location: uk
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![]() Oops, I re-read your post and it looks like you might have lost the old one so you have a different problem. It's a very thin shaft and it's going to bend if you use any force incorrectly. You need to support the motor so it's secure, I would use a wood bit to make a hole in an off cut and drop the motor into that, use some tape around it if it's a bit loose, then heat the pinion up. I would use the oven or a pencil torch, then when it's up to temp quickly drop it onto the motor shaft using something light weight like a pair of tweezers so you don't soak the heat out. If it freezes before it's right home you will need carefully press it the last bit with a vice. If it does go right home first time quench the the assembly with a damp cloth to stop the heat going into the bearing. Just my ten cents.
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