background image

Align Trex Se Setup Guide

#5 Verify throttle operation

     

Your ESC should be plugged into channel 1. 

     

Although the ESC may have safety measures to guard against accidental motor starts you should always be 
cautious.

     

Verify that all switches are set to 0.

     

Hook up your motor leads to the ESC.

     

Turn on your transmitter and set the collective/throttle (left stick) at full low. 

     

Connect a fully charged battery to your ESC.

     

Allow the heli to sit still while everything initializes. You will hear a series of beeps and the motor may bump 
slightly during the beeps.

     

After everything has initialized you may slowly increase collective/throttle (left stick) at which time the rotors 
should start to turn. (clockwise looking from top). 

     

If you hear the motor turning but the rotor does not, reduce collective to full low. 

     

The motor may be reversed so swap any two motor leads to reverse operation. 

     

Increase collective again and the rotor should turn in the clockwise direction. 

     

If the rotor fails to turn again and you hear the motor there are a couple things that should be 
checked. 

     

Hold the main rotor with one hand and attempt to turn the main gear clockwise. It 
should not turn in this direction however it will turn counter clockwise. 

     

If the gear turns in both directions it could be a bad one way bearing or 
your, a missing or sheared main gear bolt or metal main housing bolt. 

     

If the above checks out then your pinion gear is either loose or not 
making contact with the main gear.

#6 Final Check 

     

Before attempting hover or flight there are several areas to check and are not limited to the following. 

     

Binding 

     

Disconnect your motor leads for safety

     

Give the heli full cyclic by moving the cyclic (right stick to the top right corner).

     

Spin the blades with your hand and watch and listen for any binding or rubbing. 

     

TIP: watch the swashplate and if it moves or appears to bump then something is 
probably hitting somewhere.

     

Continue doing this on the remaining three corners of the cyclic control (full top left, bottom 
left, bottom right). The corners should be the full extent of motion but to be safe check the 
entire range by moving the cyclic stick in a complete circle, or in the case of the DX6 a 
square.

     

Clearance 

     

Move all servos to their fullest extent in both directions. 

     

Make sure servo arms do not touch, rub or extend into any moving part like the main 
gear. 

     

Gear Mesh (the amount of play between the main and pinion gear) 

     

Finding the right gear mesh is very important. Although the gear appears round, it will likely 
be slightly oval (egg shaped) having one more high spots. Due to this it will be necessary to 
have tight mess on the high sides of the gear in order to get correct mesh on the low. If you 
were lucky enough to get a truly round gear then you can have correct mesh all the way 
around. Clone that gear and send it to me. 

     

Unfortunately its really not possible to visually verify mesh while the gears are on the 
heli so we use our thumb to rock the gear and feel the mesh. Look at the images 
below to see what you are feeling for.

http://www.digimemphoto.com/pdf/ (11 of 13)1/25/2006 7:09:05 PM

Summary of Contents for Trex SE

Page 1: ...so please see your manufacturers instructions for placing your radio into the correct helicopter mode in this case CCPM and other options such as servo reversing gyro gain etc Radio settings rates de...

Page 2: ...ect PLS P2S and PHS and set the following values using increase and decrease PLS 0 P2S 50 PHS 100 Press scroll to advance to the next Pitch Curve Menu Use the channel button select PLH P2H and PHH and...

Page 3: ...hen advance to around 9 degrees total The radio settings should now be very close to final with the exception of possible servo reversing subtrims and gyro gain adjustments 2 Servo mounting connection...

Page 4: ...ervo arm should move down and Channel 6 servo arm should move up If this is not the case you will need to reverse one or both of the servos depending on what reaction occurred Move the right stick cyc...

Page 5: ...t the linkage on the head assembly In order to correctly set up your new Trex you will need a pitch guage This tool is used to measure the pitch angle of the main rotor blades in relation to the flyba...

Page 6: ...the guage If all is well your flybar and top of guage will be parallel showing your pitch is at 0 Do the same for the other blade You should be right on if not very close You can make slight adjustme...

Page 7: ...tom of the main rotor housing figure J below The gap can be tighter than what is shown but they surfaces should not be butted together If you are unable to reach 10 degrees before the surfaces touch t...

Page 8: ...section and do this servo again You need to be in flight mode 1 With the servo centered horn on linkage connected loosen the servo mount bracket so it can be moved on the boom Position the servo so t...

Page 9: ...to push the tail away from you Watch the servo and not the direction it moves when you push the tail The servo horn should move towards the tail as in the diagram Pulling the tail towards you should r...

Page 10: ...full left rudder Listen for binding and check clearance figure P If you hear binding or see that there is zero clearance reduce the gyro travel limit on the gyro until you have some clearance Do the...

Page 11: ...ct with the main gear 6 Final Check Before attempting hover or flight there are several areas to check and are not limited to the following Binding Disconnect your motor leads for safety Give the heli...

Page 12: ...h Switch at 0 Normal operation Switch at 1 No motor operation Aileron D R Switch Switch at 0 Gyro Head Hold Mode ON should remain in this mode Switch at 1 Gyro Head Hold Mode OFF Elevator D R Switch F...

Page 13: ...erely steps shown to me by Bob to get SE straight and hopefully will do the same for others History 01 25 06 updated CP section of radio setup to better explain the function of CP2 CP3 and CP6 Added g...

Reviews: