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HomeAircraftHelicopterCentury Radikal G20-30 N640 Hawk Predator › a little bit stummped on Hawk disassembly
04-20-2009 10:21 AM  9 years agoPost 1
HawkProPilot

rrApprentice

Norfolk, Va.

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I crashed hard for the first time yesterday and bent my main shaft. I have been trying to figure out how to get this out of the heli all day with out separating the frame halves. Can this be done? I am not in any real hurry, because funding for my new parts went to a new bed and a few other things for the house, but I would appreciate suggestions. The instruction manual is not to clear to me on this.

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04-20-2009 12:27 PM  9 years agoPost 2
Blade_Master1

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Canada

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It should pull out after you undo the lower J bolt and loosen the 3 set crews that hold the main shaft collar

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04-20-2009 12:58 PM  9 years agoPost 3
Ray Fernandez

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Guam (U.S.A.)

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Unless the main shaft is straight, you probably will have no choice but to split the frames to get it out. I would suggest that you take the time to check the whole bird out, and since you've mentioned you will not be getting parts soon.

After major crashes, I have always done the thorough check through, replace what needs to be replaced and if there is a question about a certain part.......replace anyway.

Sorry to hear of your crash. Hope you get back to flying soon.

Ray Fernandez - GUAM

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04-20-2009 01:41 PM  9 years agoPost 4
Frank Bostwick

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Cincinnati Ohio

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Ive found that most times I bend the main shaft real good, the main bearings are shot. Ive never HAD to split the frames but if you do that first it may save your bearings some stress. I pull the lower nut and bolt, loose the shaft collar (set screws removed all the way) and use the head block to pull on. Some times it takes A LOT of pull to get it out. Like Ray said though.......in the long run its better to split and check after a bad one.

RIP ROMAN

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04-21-2009 11:48 AM  9 years agoPost 5
HawkProPilot

rrApprentice

Norfolk, Va.

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The main shaft is not bent too badly, but it is enough to tell that it is not straight when I removed the head and spun it by hand. Also, do the spring clips above and below the main gear have to come off first?

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04-21-2009 12:12 PM  9 years agoPost 6
Blade_Master1

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Canada

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no

they are part of the main gear

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04-21-2009 12:32 PM  9 years agoPost 7
HawkProPilot

rrApprentice

Norfolk, Va.

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Thanks everyone. I think that should help. Now I just need new tools and parts....Donations accepted!!! LOL

I need to get a second job just to buy parts.

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04-21-2009 01:22 PM  9 years agoPost 8
Ray Fernandez

rrElite Veteran

Guam (U.S.A.)

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Post up what you might need. The guys (& Gals) here will from time to time, offer up thier "used" tools.

Ray Fernandez - GUAM

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04-28-2009 09:43 PM  9 years agoPost 9
HawkProPilot

rrApprentice

Norfolk, Va.

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I was just kidding. What I need is more time for the sim so this doesnt happen very often!!

I need to get a second job just to buy parts.

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04-28-2009 10:23 PM  9 years agoPost 10
jackheli

rrProfessor

Vancouver - Canada

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If the slightly bent shaft is hard to get out try this... CAREFULLY!

- remove the head
- remove the lower bolt that holds the main gear to the mast
- loosen the collar
- place the heli on the floor
- step over the landing skids so you are on top of the heli - one foot on each skid...
- slide a 3mm hex driver through the top hole in the mast
- pull up on the driver

I hope this helps. It did it for me lots of times...

It's easy to find an excuse to do wrong. Hard is not to find an excuse to do right.

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04-28-2009 11:18 PM  9 years agoPost 11
HawkProPilot

rrApprentice

Norfolk, Va.

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that is exactly what I did to get it out. Just waiting for budget to open up for parts now.

I need to get a second job just to buy parts.

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04-29-2009 12:14 AM  9 years agoPost 12
Blade_Master1

rrElite Veteran

Canada

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place the heli on the floor
- step over the landing skids so you are on top of the heli - one foot on each skid...
- slide a 3mm hex driver through the top hole in the mast
- pull up on the driver
I would crap myself if the skids stayed on the floor and the frame in my hands

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04-29-2009 12:09 PM  9 years agoPost 13
chris6414

rrApprentice

Sneads Ferry, NC USA

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Replace main shaft bearings as well. The stockers are not that tough. You need to crack the frame to get them out though.

Century Hawk Sport, OS .32, Futaba 7C, GY-601 9251
Predator Gasser SE G-23, Fut 3010 servos, JR gyro/servo

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04-30-2009 02:58 PM  9 years agoPost 14
HawkProPilot

rrApprentice

Norfolk, Va.

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After market bearings, or just buy new from century products??

I need to get a second job just to buy parts.

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05-01-2009 12:51 AM  9 years agoPost 15
Blade_Master1

rrElite Veteran

Canada

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I have never had a problem with them bearings after a crash but if they feel rough or it bent the main shaft pretty good it would be wise to change them with the stock replacement unless you can get them aftermarket ones easier.

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