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HomeAircraftHelicopterBergen R/C Helicopters › Belt drive pulleys
04-02-2005 03:00 AM  13 years agoPost 1
Bushy

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Tucson, AZ

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While going through the all the bearings and greasing in preparation for assembly I noticed the three belt transmissions had the plastic pulley installed differently. One had the hub up with the mount screw recessed in it and two had the pulley reversed and a flat washer under the screw. Upon looking the assy up in the manual it showed a metal pulley with set screws. Arrghh.

Going to the site and looking up the pulley there indicated it is a 10t while all the plastics I have are 9t. Double Arrghh. Looks like an upgrade was done to speed up the tail rotor.

So, am I correct in the assumption I need a new pulley and shaft to be up to date?

John (Dave) Daniel

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04-02-2005 06:20 AM  13 years agoPost 2
Chris Bergen

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cassopolis, MI USA

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All the pulleys now are metal.

If there is nothing wrong with the ones you have now, theres no need to change them is there?

Chris D. Bergen

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04-02-2005 06:41 AM  13 years agoPost 3
Bushy

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Tucson, AZ

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Chris

Do you have a pic of how the plastic pulleys are mounted?


I'll go for the higher tail speed.

Dave

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04-03-2005 04:21 AM  13 years agoPost 4
Chris Bergen

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cassopolis, MI USA

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Sorry, no.

I would have to find the original manual, which is buried somewhere in a filing cabinet.

Chris D. Bergen

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04-03-2005 07:18 AM  13 years agoPost 5
Bushy

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Tucson, AZ

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Ok. I worked out the assembly and mounted it for now. Going to finish the build before I order any more parts.

Dave

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