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HelicopterAlignT-REX 700N › Install governor sensor cable - Trex 700N
08-21-2014 10:27 PM  3 years agoPost 1
Dany

rrNovice

Sweden

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I just bought a used Trex 700n. There was no sensorcable installed since the previous owner needed the one that was installed earlier.

Acc to a few people it can be a pita to install this sensor and you need to take the mainframes apart etc....Is it really that hard to install it in an already assembled helicopter?

Would greatly appreciate if someone could explain how to install this the easiest way. Is it maybe possible just to take out the clutchbell assembly and then install it?

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08-21-2014 10:58 PM  3 years agoPost 2
dchekas

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Farmington, CT

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There's no need to split the frames to install the sensor.

It's probably best to remove the elevator servo assembly to give you some access inside the frames. Removing the pitch/aileron servos can make it a little easier as well, but not necessary.

I don't think it's necessary to pull the clutch stack unless you need to glue in magnets to the bell.

Another option is to purchase a backplate sensor and use that instead.

Team Align, Team Futaba, Team Byron Fuels, Team Thunder Power

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08-22-2014 03:08 AM  3 years agoPost 3
Twrecks600

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Round Rock, Texas

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This is what I did with mine. Took all of about 10 mins and I have 4 gallons through her with no issues.

Team me

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08-22-2014 03:30 AM  3 years agoPost 4
Rob43

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Midland, MI USA

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In a set of V2 frames, I removed the main gear and was able to position the sensor and screw it down. Wasn't easy to position it over the mounting holes, but I did it. Cable was easy to feed up front using a tweezer.

Rob

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08-22-2014 03:37 AM  3 years agoPost 5
jsenicka

rrProfessor

Eagle River, WI

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it is a pain with clutch in, but can be done.
Best is remove main gear and maybe elevator servo as mentioned here

Jim Senicka
Team Manager, GrandRC Flight Team

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08-26-2014 04:07 PM  3 years agoPost 6
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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Good timing on this thread.

I am switching from a Raptor 90 SE (FBL conversion) to a used Trex 700N v2.

Haven't started the rebuild yet, but I think I need to get my gov sensor installed first.

As I recall, changing the gov sensor on my 600N was a pita.

Believe 1/2 of what you see and none of what you hear.
Fake News will be the downfall of our Republic!

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08-26-2014 05:11 PM  3 years agoPost 7
Glenn Goodlett

rrApprentice

California

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It can be done without removing anything on a wide frame trex 700. No idea about a narrow framed DFC. I am not sure what is meant by a 700 N V2. Aren't all the 700 N frames the same up to the DFC, then they are narrow, like the photo in the above post?

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08-27-2014 12:42 AM  3 years agoPost 8
Twrecks600

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Round Rock, Texas

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I have the DFC and it was pretty easy!!

Team me

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08-29-2014 06:15 PM  3 years agoPost 9
ticedoff8

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Morgan Hill, CA. USA

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The hardest part for me was finding the plastic spacer / mounting block and the 4 screws for the sensor.
http://grandrc.com/Nitro-Helis-&-Pa...oduct_info.html

The only part in this bag I needed was the square plastic piece with 4 holes.

Then, I lucked out, because I have a bunch of old, plastic, Trex 450 Pro parts laying around, and I took 4 screws off of one of those old parts.

It took me about 30 min to figure out the correct orientation of the sensor mounted to the block and then to the frame. I had it on and off about 10 times before I got it where I think it needs to be.

But, until I run it, I'm still not sure it is correct.

I think I see why a lot of people just give up.
Spending $25 on the Spektrum backplate sensor may be easier in the long run.

Believe 1/2 of what you see and none of what you hear.
Fake News will be the downfall of our Republic!

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09-13-2014 06:47 PM  3 years agoPost 10
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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In case anyone is interested, I am running two Align gov sensors.
They are mounted on the left & right frames in the stock location using the sensor mounting block from the 700 Parts Bag.

One is for the gov input on my Skookum SK-540 and the other is for the RPM input on my Spektrum TM-1000 telemetry unit.

They work fine.

I tried to make a Y-cable to use 1 sensor for the SK & the TM-1000.
I almost caught the thing on fire while I was trying to figure out which device needed the power & ground reversed.
It was safer to buy a new sensor and parts bag and dedicate a sensor to each unit.

Believe 1/2 of what you see and none of what you hear.
Fake News will be the downfall of our Republic!

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10-05-2014 12:56 PM  3 years agoPost 11
RussJ

rrApprentice

lockport, new york usa

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I bought my 700n used from a friend and I needed the little plastic mount as well to run the Align sensor. I purchased the plastic parts bag that contained the mount too. It's a little tight fitting it in but really wasn't that bad. It works well.

Russ

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HelicopterAlignT-REX 700N › Install governor sensor cable - Trex 700N
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