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CanoMod . Futaba-RC . A Main Hobbies

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Century Hawk - Falcon - Raven - Predator > Hawk IV kit problem #1
 
 
Tin Pusher
Heliman
Location: Surrey, BC

I recently got a Hawk IV kit and have come across a problem with assembly. For those who are Hawk IV builders please help.

If you have an available manual please go to step 15 (page 13). When I
add washers M3x7 to the screw M3x30 where it says to, I find the
elevator bellcrank is stiff to move. Its like the washers are restricting
the M3x7 ball bearing. The more I tighten the screws the stiffer it gets.When I remove the 2 washers everything is smooth. On the diagram there is an exclamation mark (!) making sure you add the washers. Why is it so important? Is the elevator bell crank supposed to move easily? When I tighten the screws to what I feel is a safe torque I question wether or not my servo is strong enough to move the bell crank. If I look closely at the whole assembly I can see that the washer connects the pressure of the short spacer through to the bell crank, making the bearing an irrelevant part. Without the washer the short spacer pushes against the inner race of the bearing and the bell crank moves smoothly because its contact point is the outer race.

If I have'nt confused the issue too much please help. When I am done I am going to add a beginners guide to Hawk IV building to my web site so other rookies can learn from my mistakes.
Thanks
06-19-2002 Over year old.
 
 
oldfart
Elite Veteran
Location: Vancouver, Canada

washer

Don't use the washer
06-19-2002 Over year old.
 
 
the Wasp
rrProfessor
Location: Vt

you'll like it


You'll like your Hawk, mine is the SE V2, I love it !! I paid $330 for the kit and it came with a par of $80 main blades !!

Jim
06-19-2002 Over year old.
 
 
Tin Pusher
Heliman
Location: Surrey, BC

 Thanks Old Fart
Standby for question #2
06-19-2002 Over year old.
 
 
ncostes
Veteran
Location: US

Phil
I used the washer - is that a problem?
Tin - I told you you'd get a good answer on here Was the other item you mentioned the spacer that goes with the mast bearing?
Nick
06-20-2002 Over year old.
 
 
Tin Pusher
Heliman
Location: Surrey, BC

The washers made it too stiff to move. Yes the mystery washer was the mast bearing spacer.
Thanks for the help.
06-20-2002 Over year old.
 
 
bhelisN6
Heliman
Location: Fremont, California

When the Hawk IV was released, the elevator lever was upgraded to the ball bearing verison but the instructions were never corrected. Do not use the washer.

When the elevator assembly used the bushings (Hawk III), the washer was critical to ensure smooth movement as the washer actually pressed against the steel axle that extended to just slightly beyond the outside edges of the elevator assembly. Now with the ball bearings, the washer will touch the inner and outer bearing races, essentially locking the bearing.

Changes are in progress.

Andrew
06-25-2002 Over year old.
HOMEPAGE  
 
 
ncostes
Veteran
Location: US

Aaaah. Ok I will disassemble and remove the washer, should have listened to Phil
06-25-2002 Over year old.
 
 
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Century Hawk - Falcon - Raven - Predator > Hawk IV kit problem #1
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