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New R22 Drivebelts A190-2 - way too tight?


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Does anyone else here have issues with the new thicker 190-2 R22 drivebelts?

 

We just installed them on one of our machines (old style no longer available)... With the clutch actuator collapsed as much as possible, clutch engagement still takes less than 50sec. The belts have almost no slack, it is impossible to move the belts by hand, and on startup, the starter turns the blades.

 

Leaving the clutch engaged for 4 days didn't improve this, some people say they require up to 40hrs of break in before they develop some slack?

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Hey lelebebbel,

 

Around November 2010 we put these belts on one of our ships before doing a season of rice poll. With the clutch fully disengaged and set as loose as it could be, the clutch actuator was interfering with the tail rotor linkage. We had to adjust the clutch actuator accordingly and left the clutch engaged overnight, everynight. Finally after about 4 months it would stop engaging the main rotor on startup. This was a good thing as it gets annoying throwing your blade like an old prop plane and running inside to crank the starter!! lol

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Yeah my passengers weren't impressed when they saw an engineer pushstart the rotor on the 22 next to us...

 

Robinson recommended 30 minutes hover at max gross weight... that did actually help, it will now start without a push, but the belts are still very tight with the actuator fully collapsed. Clutch engagement takes 75s now after 15hrs on the new belts, so it is within limits, but the blades still turn as soon as you crank.

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Does anyone else here have issues with the new thicker 190-2 R22 drivebelts?

 

We just installed them on one of our machines (old style no longer available)... With the clutch actuator collapsed as much as possible, clutch engagement still takes less than 50sec. The belts have almost no slack, it is impossible to move the belts by hand, and on startup, the starter turns the blades.

 

Leaving the clutch engaged for 4 days didn't improve this, some people say they require up to 40hrs of break in before they develop some slack?

Bring it up to Pat Cox at the Robinson mechanics review at Heli Expo....if you aren't going...I'll ask him. Chances are there is something they like better with the new belts in the long run. Hopefully they all last 2200!

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