Setting trex600 head

[Reltub]

Just in the middle of setting the head on my trex I've centred the servos and connected the linkages at mid stick first problem was the swash hitting the bottom shaft collar at full negative at lengthened the linkages whats happening now is at full positive the washout is touching the top. At mid stick I've got 0 pitch at full negative I've got -13 and full pos 7. Any1 got any ideas? Cheers

This is my first set up btw.

[smcb1]

I would suggest you checkout finless bobs setup vids on HF. You need to start again with the servo to swash links, I would suggest starting with the lengths stated in the manual as a starting point

[Reltub]

Im using his ccpm vid as a guide. I set the linkages to the book but for some reason im getting too much up and down, i altered them to stop the swash hitting the bottom but its still hitting the top, the problem is he doesnt have this prob in his videos.

Cheers

[waveydavey]

Is it a flybarless setup of flybarred. The 600 head is an easy one to setup in fairness but we need to know what you're setting up in terms of head.

[Reltub]

Flybarred mate

[smcb1]

you need to reduce the amount of cyclic pitch on your Tx which will reduce the overall travel of the swashplate on the mainshaft which will stop it touching at the top and bottom

[olly]

Just in the middle of setting the head on my trex I've centred the servos and connected the linkages at mid stick first problem was the swash hitting the bottom shaft collar at full negative at lengthened the linkages whats happening now is at full positive the washout is touching the top. At mid stick I've got 0 pitch at full negative I've got -13 and full pos 7. Any1 got any ideas? Cheers

This is my first set up btw.

If your head set up is mechanically true to the manual, then I think your issue may be with your tx throttle and pitch curves. I am no expert, but try setting them per the manual or some other basic set up and see if that helps

[waveydavey]

As above make sure that you are using a straight line pitch curve and set your stick to 50% with a 60% or a -60% in the swash mix depending on direction, set the swash level with the servos centered etc as best you can mechanically but then using a bit of sub trim if required. Use a 6" rule through the centre of the bellcranks/servo. This will make sure that they are level. Set you swash level with the lengths of control rods as per the manual. Only then put the head on. Set everything level so that the flybarred cage is square, work from the swash up in other words. When this is right then set 0 degrees on your blade grips. hey presto you should be equal either side now and adjust your maximum amount of +ve and -ve using the swash mix in the first place and then the curves to sort your normal and idle ups.

[olly]

Just to add, as I have recently been coached on this: when you have set up your pitch/throttle curves, go back and re-set the blade pitch to 0 deg at mid collective, but in ST1 (idle up 1) Always make sure your bench is level, mainshaft vertical and flybar locked at 90 deg to mainshaft. All basic stuff, but attend to this detail and you will have a very smooth and stable head set-up. Good luck!

[Reltub]

Thanks for all the replies guys!! Just been watching bob alot have learnt shed loads!

[waveydavey]

You can buy a blade caddy with a hole at the right height for the flybar in order to help setup

h60145_1.jpg

Main Blade Holder/New H60145 - Align T-Rex Spares align trex 600 - ALIGN-TREX.co.uk

[dieselcarb]

You can buy a blade caddy with a hole at the right height for the flybar in order to help setup

[ATTACH=CONFIG]46365[/ATTACH]

Main Blade Holder/New H60145 - Align T-Rex Spares align trex 600 - ALIGN-TREX.co.uk

Just though i'd add this only works with plastic paddles and will need modifying if you use carbon paddles ;-)

Sent from my GT-I9000 using Tapatalk

[olly]

Just though i'd add this only works with plastic paddles and will need modifying if you use carbon paddles ;-)

Sent from my GT-I9000 using Tapatalk

A good improvised solution is to use a 10mm thick piece of foam simply held on top of the blade caddy by a rubber band. Then slide the flybar paddle (carbon) under the band and you should level.