I have a 14 year old TC-25 with only 280 hours on it. I primarily use it spring and fall for food plots. This week, the clutch has gone from normal (didn't notice any issue) to not engaging fully under load over about a 5 work hour timeframe. I first realized the issue when the tractor would slow down under load with no apparent increase in load on the engine. The clutch has to be all the way out before it engages without load. If the clutch pedal is depressed at all, the transmission disengages. Are there any simple fixes to try before I haul it to the dealer for repair? All fluids are within owner manual specs. I wouldn't think the linkage would be in need of adjustment with so few hours on it. Any help would be appreciated. Thanks.