How do you replace drive belt on husq 54 in zero turn mower?

To replace the drive belt on a Husqvarna 54" zero-turn mower, first, ensure the mower is turned off and disconnected from the power source. Remove the deck by detaching the retaining pins and any other fasteners. Next, locate the drive belt, remove it from the pulleys, and install the new belt by routing it through the same path as the old one. Finally, reassemble the deck and test the mower to ensure proper operation.