Hi, Engine doesn't start. Here is what I've done so far: charged battery, PTO is off. Transmission in Park. Pedals not moved. Sitting in operator's chair. Turn the key, wait for glow plug to turn off and turn the key to the right and get one click sound near the battery. My headlights don't dim and I can turn on the fans on etc. what could it be? If it's the starter solenoid or starter is it a simple swap? Or is it the starter fuse? How can I tell? I'm not too mechanically inclined. Thx in advance.