Hacker A30-28 shaft set screw - RC Groups
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May 23, 2006, 01:28 PM
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Tommy D's Avatar

Hacker A30-28 shaft set screw

Just got my Hacker A30-28 Brand New.

I would like to remove the 2 shaft set screws and reverse the shaft. One of the set screws was 1.5mm and came right out. The other one is larger then the 1.5mm screw I just removed. I have tried all my small allen keys both english and metric and nothing fits it tight enough I would attempt to break it free.

So are these 2 different sizes or did Hacker strip it out when they assembled the motor?


Tommy D
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May 23, 2006, 04:51 PM
AMA 148796
I had the same problem and had to give up. Anybody successfully removed the screws from a A30?????
May 23, 2006, 07:39 PM
AMA 148796
May 24, 2006, 07:28 AM
Registered User
I had to do it to mine to use the X-mount and the screw on prop adapter. It's been a few months, but I seem to recall having to use 1 metric and 1 SAE allen wrench. I believe they use loctite on them, so try to heat the screw with a soldering iron first, then use the allen that fits the best and be very gentle(and patient).

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