husqvarna z5424 Mower need help changing belt

[johnybztr]

Any pointers would be great I have a husqvarna z5424 3 years old I need to change the pump belt (some call it drive belt) it looks like I have to drop the pulley (under the engine ) down but when I try to loosen the bolt the engine turns what is the best way to prevent that? I cannot seem to find anything to hold to stop it, and don't want to damage anything.

thx

 

[interadx]

Have you received an answer, I have the same problem

 

[RandyT]

Most lawnmower shops such as myself use an impact wrench to remove the bolt