My Z655 (11.4 hours) started squeaking when the deck moves. I can replicate this noise by grabbing the deck and "sliding" it from side to side. There seems to be an awful lot of play in the front hangers (54 HC deck), and the right front is where the squeak is. With the amount of side to side "slop" in those hangers, I can see those wearing out rather quickly, along with the slot on the deck. I see they seem to be permanently positioned at the rear of the slot. Would spraying white lithium grease (Liquid Wrench, which builds up and stays put) be advisable? Anyone reporting quick wear in this area?