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Thread OP
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Help!
Walkera master CP
Hi guys,
I replaced the plastic servos today after a quick crush into my toyota one month ago. It crushed because it started with a sharp left turn, dont know why. After replacing the new metal servos i started it and i immidiatly spotted that it has the same left turn. (aileron left). What should i do? Is it a trx definition? A mechanical issue? It ia sooo frustrating, i flew it for 5 sec and since then... Nada.. Thanks... |
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First off ensure the swash is level when your collective is a midstick. At midstick your 3 servo arms should be almost level (or 90°) to servo body. Best to disconnect the motors before doing this.
If the swash isn't level at midstick then level it. Dont add any trims on the transmitter or remove any you may have added. Once it's level at midstick you should be ok to fly. May I ask if you have done a mechanical setup in a heli before? If this is your first heli or mechanical work on one I'd suggest being very cautious and spend some time on a flight sim. Sent while reciting Vogon poetry. |
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Quote:
Jump onto the Helifreak forum and look for Finless videos. They show you how to build and setup a heli. This information is really vital. Read the MasterCP manual after watching the videos as it will then make more sense to you. In a shortened version - Your swash needs to be level to achieve flight. To do that you need to have the servos "centered" as in the servo horn is to be as close to 90° to the servo body (eg if the servo is vertical the servo horn will be horizontal). The reason to have the servo horn at 90° is so that it's in the middle of its travel range. So you also need your transmitter throttle (collective) in the middle of its travel range - called "midstick". This is so when you raise the throttle the servos move to the end of their travel. Same as moving the throttle down. Once the servo horn is as close as possible to 90° at midstick then you can check the swash. If it's not level you remove one end of the linkages and adjust it until you have the swash level. Angle slightly left and the heli will slide left. Angle slightly forwards and the heli will move forwards. Have it level and the heli should be able to hover without drastic changes in movement. Once the swash is level you then need to check to see if your blades are also level. Turn the head so it's at 90° to the tail boom and swing the blades back over the boom. At midstick they should be level. If not you'll need to adjust the linkages from the swash to the head until the blades are as level as possible. Little tip - the linkages only fit onto the balls one way. One side of the hole is slightly bigger so to make adjustments you need to turn the link a whole 360° otherwise it will not fit onto the ball. There are plenty of YouTube videos on how to do this if my instructions are not clear (I prefer video myself). Sent while reciting Vogon poetry. |
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Level s/plate is a must have. When I replaced plastic servos and added m/g one I had to adjust links to level s/plate. I had two Masters and one was bone stock. I got many flight with it and sold it. The second one crashed and replaced servos. That one also got bl kit. Flew both for couple years and sold them. It served me well but have two V200D03's. Not to mention 4f200 LM Scale heli. They all use same servos as Master.
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