I agree, it is difficult to do without a control unit when installing and adjusting the retractable landing gear. ***winter***

You can solve the reverse operation of the aircraft's retractable landing gear by reversing the polarity of the JR servo connectors in your controller. Exactly as the guys say. ***winter***

You only have to reverse them (normally) if you reversed the retract from what how they were deliver, at least that’s my experience..

Hi Daniel,
yes, you need to do the mechanical adjustment first. I think the manufacturer supplies retractable gear set up to fit into the foam cutouts in the box.
The landing gear was delivered to me in a mechanical setup that could not be used for the T-1.
In the photo (above) is mechanically set reverse operation. That's fine for the T-1. Changing the settings is a matter of minutes. ***winter***
-This is why the polarity of the connectors must be reversed !-

Humm I wasn't asking.....I have no problems... ahah

I think a nose motor is reversed to a main...

I know you have no problems. I just supplemented my previous post to make it complete and understandable. So I hope it is ..... ***winter***

‘I guess just the way it was writing 😬....I installed electron in quite a few airplanes and I have a few more to do this winter.....I’m actually playing with the first set of NG that I see......pretty cool motors for the monster plane, going into a Pirotti G91 .....

This is a really big retractable landing gear..
https://www.google.com/search?hl=cs&...sy-ab&ved=0ahU
Pirotti G91- Modelcity Czech Republic
***winter***

Yes it’s a huge plane the gear is big and pretty heavy but does look great........with electron er50 NG and the pro controller, it will work nicely....this model is a lot of work but I’m sure the owner will enjoy it for a long time......