During my last mowing, my deck got noisy. Thought maybe it just needed cleaning. Removed and found it clean with no apparent problems (Bent Blades, Bad belt, etc). Removed the deck belt and checked all the pulleys. Found a grease fitting I had missed located between the main dual drive pully. Pumped in lots of grease before getting a return. Found another idler pulley on the fron side of the deck had some side slack. no way to grease it. Reassembled and installed. Checked out and had the same noise.
Loaded it up and carried it to my dealer. Sure enough, the idler pulley I had checked was bad and had to be replaced. The mechanic added a large spacer to the bottom of the deck where th pulley was mounted in case the deck was flexing. Said he had never had to replace one before. Get used to the sound of the normal hum and be alert to a noise change just in case.
Loaded it up and carried it to my dealer. Sure enough, the idler pulley I had checked was bad and had to be replaced. The mechanic added a large spacer to the bottom of the deck where th pulley was mounted in case the deck was flexing. Said he had never had to replace one before. Get used to the sound of the normal hum and be alert to a noise change just in case.