450 HK450 built journey

[makarthur]

I started my first 450 kit built and would like to document the journey. Issues encountered and lessons learned.

Issue 1 - flybar rod stuck at thread edge, how can I get it through after the thread edge, see diagram

 

[Slobberdog]

Unscrew the grub screw further

 

[trainrider06]

Like slobberdog says, looks like that grub screw is kinda far down.

 

[makarthur]

Raised the grub screw and the flybar rod can pass now.

Thanks a lot.

 

[trainrider06]

Be sure to locktite the grub screw when you have the flybar Rod centered

 

[Tony]

Right on, keep posting the progress!!! Love seeing threads like these.

 

[makarthur]

Trainrider06, thank you for your tip.

Tony, thank you for your encouragement. I am a newbie, hope to have your support throughout this journey.

 

[Tony]

You have my 100% support!

 

[trainrider06]

Your very welcome! I built one of those about a year and a half ago, nice kit! Still have the heli too!
Also, do yourself a favor and either look for a Futaba GY 401 gyro, or either of the Spartan quark, or Ds760 for your gyro.
Those are very good gyros!

 

[makarthur]

Here's my 450 kit out of the box and the tools I gathered for this build.

 

[trainrider06]

Looks like you have all the stuff! Bet your excited !

 

[makarthur]

Issue 2 - smashed bolt head
Trying take down the mainframe and apply thread lock. Removed all but two, which I have smashed the bolt head. How to remove or just leave it as is?

 

[trainrider06]

If you have a set of standard size allen wrenches you can kinda work one that is close to that I believe 1.5 MM Allen screw....this is what I had to do on a couple of em, but really if it's that tight I'd just leave it alone...it obviously has thread lock....
Also, no need to thread lock any screw that is going into plastic...

 

[D.O.G.]

Hey there Makarur, do your self a favor and get rid of that drill for the build. If anything get a Dremel. Handy to have. If you pop the head off, "Hopefully not using the screw gun to put screws on and off" good luck. I tried dapping it out and no luck. Being so close to the frame., i tried to pried the frame from the screw from the back side of the frame where the bolt snap at. Hope that makes sense. Probably not. Give that a try. It's kinda of a hit or miss when it comes to strip heads.

 

[makarthur]

trainrider06 and D.O.G. thank you for your tip. Will get a Dremel.

 

[Admiral]

Hi makarther, I have had great success removing screws like that by cutting a slot in them with the Dremel and using a straight screwdriver to remove them.

 

[makarthur]

Admiral, brilliant - will get a Dremel, right away.

 

[trainrider06]

How's the build going marakthur?

 

[makarthur]

Taking the rotor apart and found the supposed brand new (never fly) metal washout base has been worn out. I doubt I even want to fly my 450 with this worn out part. Talking to HK to get replacement.

 

[makarthur]

Issue 3 - washers on feathering shaft, three on the left and two on the right

Got a replacement rotor and take it down to apply thread lock and lub. How many washers should be there?