Hi, Hope someone can shed some light on a potential problem. I have a lazer z hp 44"deck, is only one season old. for some reason there is a bad vibration and grinding sound coming from the area of the tention pully under the motor. You can here it when motor is idle and at top. Also when thrust is put on the mower with the drive arms there seems to be a clicking sound. Is that from the drive pumps? A possible fluid problem? Do the lines need to be bled? Hope someone can help!