first get your heli and block your tail blade with your finger as shown in the picture and then turn your main blades clockwise and watch the belt at the back of your tail gear as shown in the pic to see if it is slipping, i always have it so you can see the belt slightly lift but does'nt slip over the back belt pully,it dont need alot of force
and to tighten the belt simply loosen the four screws on the clamp under where the gyro is as shown in the pic and pull the boom back bit by bit and keep checking your belt like shown above when your belt is tight enough then tighten the four screws on the clamp and job done
cheers graham
edit by geoff:- thank you graham, i have made this a sticky as we needed a post to show how to tension the belt on this heli.
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trex 450se e-smart 600
