We have tried using the trim guide and it is not working. The first day we had it out of the box it was not a problem. Now when we try to trim it we do not get any results.
See solution 2 for post "How do i fly my spin master air hog rc helicopter?"
Mar 10, 2010- Don't know if you ever solved this issue but if the problem is still there and you feel adventerous you can try to fix it.If the top rotor and shaft came loose, (either it pulls out or if you turn the upper rotor and it does not engage and turn the lower one at the same rate) I used an exacto knife to cut along the seam of mine,(you have to be careful especially in the tail section as the antenna wire runs along its length). You will have to caerfully bend up the directional fans to remove each side of the body once separated. Use a small jewelers screwdriver to open the motor housing - there is a screw on the vertical rotor housing section right behind the circut board that you will have to get to by going in on an angle - being careful not to lose the small washer on the shaft above the lower gear. Remove the upper rotor and shaft and the gear and washer. Clean all with rubbing alcohol. Now here is the hard part - place the gear back into the lower half of the motor housing, insert the upper rotor shaft into the gear until it bottoms out and mark the shaft at the top of the gear, (a dab of liquid white-out used for typing errors works well becuse it dries fast). Once dry remove the shaft and pull the gear off of it. Measure from the bottom of the shaft to the white mark and write it down - you can use a piece of paper as a guide by lining up one edge with the bottom of the shaft and placing a mark at the spot of the white out if using a ruler is too difficult to read. clean any grease off of the shaft and inside of the gear. Since the shaft is carbon fiber and the gear is polyethylene plastic not many glues work well. I used "J-B weld" a two part epoxy that is tough as nails and holds up well. place a mark on the paper guide approximately 1/64th of an inch above the original mark. This is how far you will have to place the gear from the end of the shaft, (this allows for less friction and keeps the lower gear from rubbing on the bottom of the gearbox...VERY IMPORTANT!!! insert the upper rotor shaft into the shaft housing in the top part of the gear box and place the small washer on it. Use the paper guide you made and put a small dab of white-out on the shaft using the new mark a your point of reference, (rember it's 1/64" above the original mark). Mix up a tiny amount of JB weld and put a thin coat on the shaft just below the mark. Slide the gear onto the shaft up to the mark and set aside overnight to harden. Next day reassemble the gearbox, (if you placed the gear too high up on the shaft the two halves of the gear box will not come together. DO NOT force it. use a file to take alittle off of the end of the shaft until the gearbox seats together tightly and reinstall assembly into the heli. I would tape the two halves together with scotch tape until you know you got it right. Try the heli using the trim wheel to stop rotation. If better but still not right check the flex on the rotor blades as it seems if used alot they get soft and flex too much which makes it hard to adjust. If they do flex alot try coating each with a THIN layer of JB weld to stiffen them up. This is a very delicate procedure as if you put too much on the balance will be shot. Seems like alot of messing around for a $40.00 toy but I enjoyed the challenge and it is rewarding to solve a problem and win.
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