first big crash
#1
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
well i finally had my first big crash, looks like the main head is pretty much all bent to pieces, and the main shaft is for sure, but i can't seem to get it out? i thought all you had to do was take the screw out at the bottom of the main gears? is their something else i need to loosen up? also the tail boom got bent downward too, is all i need is a new boom for that?
#2
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
i got the main shaft out, it just took a little tug. i stripped 2 servo gears, and the stock servo is s75h, but at kplanes he only has gears for s75, will those gears work for the s75h?
#3
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
now i got another prob. where i took the screw out at the bottom of the main shaft, i doesn't look like theirs a hole for the screw to go back through the gear, i tried and the screw won't go back in? is their something in their that rotates and now is out of align for the screw not to go back through? will i have to take the main body apart to fix this? also with the tailboom being bent, how hard is it to get the belt of the taildriven gear and back on, for the blade400? well look at the exploded view, since i gotta transfer everything to the new tailboom, could i leave the belt attached to the taildriven gear and and just slide the old tailboom off it and slide the new one back over it?
also the swash plate was kinda hard to get off, i had to sand on the end of the main shaft to finally get it to slide off, but it still left 2 scratch marks inside the ball the swash rotates on. is this gonna be a prob, cause i didn't order a new one of them since it look okay?
also the swash plate was kinda hard to get off, i had to sand on the end of the main shaft to finally get it to slide off, but it still left 2 scratch marks inside the ball the swash rotates on. is this gonna be a prob, cause i didn't order a new one of them since it look okay?
#4
That's a lot of questions you got there. Let's see what we can do:
The DS75 and DS75H are the same servo the S75 is not the same and uses different gears.
The Spektrum DSP75 is the same as the DS75/DS75H and those gear sets are interchangeable.
So if you can't find the DS75(H) sets look for the Spektrum DSP75 gear set.
If there's no hole there, how'd you get the screw out?
Anyway, you can push the whole gear stack out of the main frame. It isn't easy but it will work out if you push from one side and pull and wiggle from the other. I guess it's possible that the one-way bearing sleeve or something has shifted, not sure on this one. Pull out the stack and have a closer look. Obviously the hole in the main shaft has to line up with the hole in the gear flange.
Yes, you can leave the belt attached to the belt drive shaft assembly. Just disassemble the tail case and free that end of the belt from the tail shaft etc. Then loosen the six screws that secure the tailboom to the frame and horizontal stabilizer/tailboom support rods. Pull the tailboom off the belt. When you reassemble with the new boom just use a long wire, wire hanger, to pull the belt through the boom and reassemble.
I think that covers most of what you asked.
I hope that helps.
i stripped 2 servo gears, and the stock servo is s75h, but at kplanes he only has gears for s75, will those gears work for the s75h?
The Spektrum DSP75 is the same as the DS75/DS75H and those gear sets are interchangeable.
So if you can't find the DS75(H) sets look for the Spektrum DSP75 gear set.
where i took the screw out at the bottom of the main shaft, i doesn't look like theirs a hole for the screw to go back through the gear, i tried and the screw won't go back in? is their something in their that rotates and now is out of align for the screw not to go back through?
Anyway, you can push the whole gear stack out of the main frame. It isn't easy but it will work out if you push from one side and pull and wiggle from the other. I guess it's possible that the one-way bearing sleeve or something has shifted, not sure on this one. Pull out the stack and have a closer look. Obviously the hole in the main shaft has to line up with the hole in the gear flange.
how hard is it to get the belt of the taildriven gear and back on, for the blade400? well look at the exploded view, since i gotta transfer everything to the new tailboom, could i leave the belt attached to the taildriven gear and and just slide the old tailboom off it and slide the new one back over it?
I think that covers most of what you asked.
I hope that helps.
#5
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
thanks very much, hopefully i'll get it all back together LOL got to brave and went to far away in front of me and lost orientation and then it fell like a rock, but crack to pieces like an egg. i ordered about 75 dollars worth of parts, i didn't know the main head would cost that much to fix [:-] and that wasn't including the 16 dollar swash plate. which some parts that i ordered might actually be fine, but i pretty much just bought everything to rebuild it, except the swashplate.
#6
Sounds like you messed that thing up good.
Good luck.
You should watch and understand the Finless Bob videos on Helifreak regarding CCPM Setup Part 1 & 2.
These will help also if you haven't seen them:
[link=http://www.blade400repair.com/]Blade400Repair[/link]
[link=http://www.repairblade400.com/]RepairBlade400[/link]
Have fun.
Good luck.
You should watch and understand the Finless Bob videos on Helifreak regarding CCPM Setup Part 1 & 2.
These will help also if you haven't seen them:
[link=http://www.blade400repair.com/]Blade400Repair[/link]
[link=http://www.repairblade400.com/]RepairBlade400[/link]
Have fun.
#7
Here's the link to Finless Bob, but you have to register to view the videos.
[link=http://www.helifreak.com/showthread.php?t=41692]Heli Skills and Setup[/link]
[link=http://www.helifreak.com/showthread.php?t=41692]Heli Skills and Setup[/link]
#8
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
my flybar seesaw holder is broke, but i can't find it on ka-planes.com and on horizon hobby is on backorder saying item coming soon
http://www.horizonhobby.com/Products...rodID=EFLH1423
do they not make replacement parts for this yet? am i out of luck till they decide to make it?
http://www.horizonhobby.com/Products...rodID=EFLH1423
do they not make replacement parts for this yet? am i out of luck till they decide to make it?
#10
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
okay i found one, LOL i was getting scared their for a min, with both of those two popular websites not having it. i thought maybe it was a scarce part
#11
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
i got all the parts today for my heli, and gonna start putting it back together tomorrow, or try to anyways, and i cleaned the oneway bearing with rubbing alcohol the other day, and i just looked in the manual and it said to reoil it also. i was wondering if the ballbearing lube i have for my yoyo will work with the bearings on my heli? it has teflon in it, if that helps lol
#12
I didn't know that people still used yoyo's or would admit to doing so.
...or that yoyo's had bearings.
...or that someone would actually take the time to lube their yoyo bearing.
Anyway, most bearings would fair better with grease but I think the manual says to use a lightweight oil.
If so, you should be fine as long as it's safe for plastics.
I can't imagine what yoyo's are made of these days.

...or that yoyo's had bearings.
...or that someone would actually take the time to lube their yoyo bearing.

Anyway, most bearings would fair better with grease but I think the manual says to use a lightweight oil.
If so, you should be fine as long as it's safe for plastics.
I can't imagine what yoyo's are made of these days.
#13
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
LOL their made of plastic, and yes they have ballbearings now so they will spin a very long time and allow many tricks to be done in one spin 
and yes some do lube the bearings in yoyo's but some also cleans the bearings to where their is no lube, which means no resistance and it spins even faster and longer, but the bearing doesn't last a long time either
i actually have 2 kinds of lube, mine is prob to lightweight and really thin, but the lube that came with my wifes yoyo is more thicker and has the teflon in it

and yes some do lube the bearings in yoyo's but some also cleans the bearings to where their is no lube, which means no resistance and it spins even faster and longer, but the bearing doesn't last a long time either

i actually have 2 kinds of lube, mine is prob to lightweight and really thin, but the lube that came with my wifes yoyo is more thicker and has the teflon in it
#15
Just push or pull them out using the larger allen wrench.
A wooden dowel would probably be better and less likely to damage the bearing.
Just be careful.
A wooden dowel would probably be better and less likely to damage the bearing.
Just be careful.
#16
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
got them out with an allen wrench. i got it all put back together took me 5 hours LOL and got a little test spool up to make sure she halfway flies. not perfect, i gotta track the blades their kinda off, and get the swash plate a little more level. and also i got a pitch gauge finally, i've been flying mainly in reg mode not idle up, so i want to have a little more neg pitch than normal to battle any winds since its spring and so windy. i had no probs with how it came set out of the box, but i didn't have a pitch gauge till after the crash so i don't know what settings it was on. what kinda pitch do i need at no throttle, mid, and high? also the flybar on blade400 is below the mainrotor and it seems harder to line it up with the pitch gauge than my beltcp with flybar is on top of main roto? any tips on getting the best reading for the blade400. thanks
#17
Senior Member
Joined: Aug 2007
Posts: 1,578
Likes: 0
Received 0 Likes
on
0 Posts
From: Grand Rapids, MI
I don't have a B400, but on both of my TREX 450 V2's, I have NORM pitch set to -2-INH-0-INH-+10 and both St-1 & 2 set up at +/- 10. You just want mid-stick to have 0 pitch in all three modes.
#18
Indeed, that's how I have my B400 set up:
40-45-50-75-100 for Normal mode gives -2d/0d/+10d.
0-25-50-75-100 for idle up gives -10/0/+10.
Provided, of course, you use a pitch guage to setup and adjust.
40-45-50-75-100 for Normal mode gives -2d/0d/+10d.
0-25-50-75-100 for idle up gives -10/0/+10.
Provided, of course, you use a pitch guage to setup and adjust.
#19
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
i can't seem to get a very accurate reading using the pitch gauge, i thought i had zero pitch on both blades at middle stick and the 10 at top and bottom stick, but then i spooled up and the tracking was way off. so i got the pitch gauge back out and notice that if i rotate the flybar that measurement could vary by alot. so how am i suppose to keep the flybar in the same position the whole time? when i'm not holding it, it leans to one way so i thought i was holding it level everytime, but i guess not. or do you still gotta track blades even though you had zero pitch?
#21
Thread Starter
Senior Member
Joined: Jun 2002
Posts: 424
Likes: 0
Received 0 Likes
on
0 Posts
From: yessir,
TX
has anybody got a spektrum dsp75 servo on for the tail? my lhs told me to try it instead of the eflight s75. he said it would hold the tail better, but even after turning on the gyro to digital it seems like the tail wags even worse than with the stock servo that was on it, before the crash. i finally got it set to where it would barely wag but like every few secs, but then out of the blew it would turn about 1/8 to 1/4 turn all by itself. now it was kinda windy with some gust, and i was just hovering abouve the ground about 2-3 ft because of that, seeing if it would fly after rebuilding it. and everything seem fine except this. for the setting on the gyro with stock i had it about 65% but this servo even wags their, i got it down to about 60%, any higher it starts to wag kinda fast any lower it doesn't seem to hold the tail at all, and around their it was a very slow wag. is it a bad servo or is it something i may have not set up right? is this normal for the servo not to keep up if a gust of wind hits its kinda hard, thus leaving it facing a new direction?



