Husqvarna YTH2448 - Transmission jerking

gb387

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Any help with this would be great!

I have a Husqvarna YTH2448 the transmission will jerk from time to time almost like I am suddenly applying and releasing the brake, the speed doesn't matter as it will do it at any speed. The mower will stop for just a quick second them kind of 'pop' back into 'gear' and return to the speed the hydrostat lever is set to. This is becoming more and more frequent. I keep the mover very clean as I have read the hydro can get hot, the fan is in perfect condition. The pulley on input shaft of the tranny is solid with no wobble or slippage as well as the crank shaft on the engine it seems all external parts are in great condition. I have replaced two pullies that seemed to be worn, the drive belt and brake pedal return spring. None of this has fixed the problem and its getting more and more frequent. Any suggestions would be helpful in getting this problem solved before I need to replace the tranny or buy a new mower. Mower has a 166 hours.
 

gb387

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