I have exact same machine little over 8,500 hours and absolutely no play in slew bearing, it did however idle quite a bit with original owner. I believe working hours are about 6,000. Except for some play in the main boom pin largely from putting a crappy thumb on, the machine still feels very tight with everything being original. I have nothing but good things to say about the machine. The only issues i've had were not it's fault. One thing you may want to check is the idlers, both have been replaced on mine due to bearing going. Not a huge deal, but good to know if they are shot or not.