RunRyder RC Helicopter Topic - HAWK Main gear

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Century Hawk - 50NX - Raven - Predator > HAWK Main gear

PluckinPheasant
Heliman
Location: Crawley, West Sussex, United Kingdom

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Has anyone managed to change the main gear of a Hawk Pro without splitting the heli? It looks possible but so is landing on the moon.

10-11-2009 09:04 PM

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Blade_Master1
Elite Veteran
Location: Canada

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of couse it is possible
if it is the lower gear you're thinking about, undo the grub screw on the metal pinion, the shaft should then slide out through the bottom.

F-27
MSR
Terminator Raven
NX Pro
Raven50
K50
HawkPro(~rip)
Swift 550

10-11-2009 09:07 PM

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PluckinPheasant
Heliman
Location: Crawley, West Sussex, United Kingdom

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The main gear on the main shaft

10-11-2009 09:37 PM

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canbarelyhover
Veteran
Location: Sunnyvale, CA

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i did it all the time on my raven and still do on my nx50 but it's a bit tighter with the new taller heavy duty gear. i think its the same deal on the hawk.

1) remove the main gear/shaft bolt.
2) loosen set screws on main shaft collar
3) unlink bellcrank to swash links
4) pull the rotor head out
5) main gear should come out the side, sometimes rotating it on the way out helps but i dont think its necessary with the old gear

-James
got nitro?

10-11-2009 10:00 PM

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FBoss
Key Veteran
Location: Aurora Indiana USA

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The crown gear? That drives the tail bevel gear? Yes it fits thru, tight but it does pull out. Some people change the counter shaft w/o a frame split, I have always felt the need to get at the bearings so I do split the frame for main bearings, counter shaft & bearings and tail shaft/bearings. Many times I will not even pull the main shaft on a frame split, makes it pretty fast to get inside the frame. Ive never times it but Id bet I could go from a complete RTF heli, split the frame, replace all the bearings and reassemble RTF in less than 1.5 hrs. Then having only to wait for locktite curing......Especially on a Hawk since the Raven needs to have the servos removed. The NX is much faster than the Raven BTW.

The good ole times are now ,Hawk, Raven, Raven NX, Logo 10

10-11-2009 10:00 PM

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canbarelyhover
Veteran
Location: Sunnyvale, CA

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Quote
The NX is much faster than the Raven BTW.

^^^ +1 probably the best non performance related upgrade in the NX50. Even if i had to split the frame it's a lot faster now.

-James
got nitro?

10-11-2009 10:11 PM

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Dilbeck
Key Veteran
Location: Springdale Arkansas

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I have yet to split the frames on the hawk pro except to replace bearings. Everything else is doable...

If it doesn't fly sell it!

10-12-2009 03:15 AM

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Mutt
Key Veteran
Location: M ca usa

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To change the main gear on a hawk is simple just remove the botl at the bottom and lossen the collar undo the linkages and pull the main shaft up pull the gear out slide in a new one and reverse the previous. No need to splt the frames for a main gear or most any other gear either for that matter except to replace bearings.

10-12-2009 03:55 AM

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PluckinPheasant
Heliman
Location: Crawley, West Sussex, United Kingdom

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Thanks everyone. Needed to check my theory with experience. the eagle has landed!

10-12-2009 10:04 AM

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