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A Main Hobbies . Boca Bearings . Modefo's RC Helicopters

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Vario Sky Fox - Benzin - Evolution - Xtreme > VARIO Benzine Clutch ??
 
 
Billj
Heliman
Location: Max Meadows, Virginia

OK Guys...Talk about a bad day at the field....

Started with my old warm up Xcell 60 throwing a main blade...That looked pretty bad. Pulled right out from the head...Its ugly

SOOOO..Out comes the T rex.... First lap...Heli throws itself inverted...Radio is locked out on PCM...You get the pic

So Out with my Beloved /reliable Benzine....In a hover I get what looks like a radio hit...Heli drops about a foot and catchs...Doesn't give me a warm fuzzy feeling...Stop recharge batterys check things out......Hover around a littlemore DOES it again...

OK..... Now I'm ticked...Fly my plank a couple times ...
come back to the heli....This time... I get a 180 piro...Set down..

Try to lift again to check ....Clutch won't engage...Back in the trailer it goes
I'm looking at the heli on bench...Lining looks thick...Not worn down like on a nitro bird....How do you get the bell off to see if it my be scorched ?? Any ideas on the whole clutch angle will be appreciated...Many Thanks

Bill
03-02-2008 11:56 PM
 
 
hootowl
Elite Veteran
Location: Garnet Valley, Pa.

The clutch is mounted on a tapered shaft. I get mine off by loosening the big socket head cap screw a couple of turns and then giving that bold a sharp wack with a small hammer. That usually knocks it loose. Then you just lift it out or let it drop out. It's possible your bolt came loose. It's possible the clutch is slipping on the taper. If everything looks good, reassemble it but before you do clean up the taper with a very fine emery or steel wool. Clean up the inside of the clutch shoe taper also the best you can. Clean it all up so it is pristine clean and dry. Now put a small amount of light oil on the tapered shaft. Install the clutch but tighten slowly while rotating the shoe a little to get a good seat. Finish tightening and she should hold tight.

Joe Howard helped me with the tips above.

Don't forget to do a full check of all of the other driveline components.

"Any man who says he is an American, but something else also, isn't an American at all.
03-03-2008 12:05 AM
HOMEPAGE  
 
 
Billj
Heliman
Location: Max Meadows, Virginia

I'm reading thru the manual...Is it possible that the cogged belt being more than that 3 mm play would slip that much...It dosen't look loose but I was able to tighten it considerably...The belt dosen't look damaged..Looks like I would have left some marks spinning up the engine if the belt was slipping
03-03-2008 12:18 AM
 
 
hootowl
Elite Veteran
Location: Garnet Valley, Pa.

If it was loose enough sure that is possible.

"Any man who says he is an American, but something else also, isn't an American at all.
03-03-2008 12:28 AM
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Billj
Heliman
Location: Max Meadows, Virginia

I'll tighten the belt down and try it again tomarrow afternoon..I find it really hard to believe that the clutch would have toasted so easily.

Thanks for your help hootowl

Bill
03-03-2008 12:43 AM
 
 
hootowl
Elite Veteran
Location: Garnet Valley, Pa.

You may not have toasted your clutch. Sometimes that taper slips.

"Any man who says he is an American, but something else also, isn't an American at all.
03-03-2008 12:47 AM
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Vario Sky Fox - Benzin - Evolution - Xtreme > VARIO Benzine Clutch ??
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