Positive Pitch Problems

[Biggiekay]

Have a new Nano CPX, running fine out of the box for a day or so of flying. Took some smacks on the hardwood floor. Notice nothing. But late last night, I suddenly was get no lift off. She tips over, flaps like a duck. I inspected - servos arms seemed out of kilter, bent them back. Then I could get lift off but barely. I looked at the pitch of the blades. The negative pitch angle seems much greater than the positive pitch. I checked my Tx settings and everything is good there. What else can I check? I did notice I started to get some wobble for a sec or two in flight. I tightened the spindle not just a tad. Could that have caused the problem? Not sure what else to check. Thx

[dja2424]

Check the main gear. Probably slipped down on the main shaft. Need to push it back up. maybe a dab of glue to hold it in place.

dja2424

[Biggiekay]

That was it. Thanks. Totally forgot that - should have been the first place I looked. Thanks again. This is my 3rd Nano and the 2nd one they had already added a dab of white glue. I assumed that would be the case with a subsequent model. Guess not.