Our 06 th460b was starting to get hard to start about a month ago. It was turning over too slow. The batteries being 7 years old I thought just change the batteries. This didn't help, so I called our local cat dealer and they sent out a tech to change the fuel filter and he suggested a new starter. he changed the starter but this didn't help either so he called tech support . They told him to crank the steering wheel while turning it over and if it sped up then the priority valve that supplies hydraulic power to the steering and brakes was blocked. It did speed up the cranking so he ordered a new one and installed it. It is still not starting like it was. Our machine has 2300 hour on it. We are 3 grand in and the cat boys are still scratching their heads. Anyone will the same or similar machine had this happen. thanks
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