Ran the skidsteer for 30 minutes and grabbed a log with the grapple bucket and then shut the machine down while I went to dump my trailer. Returned in 20 minutes and tried to start it and heard the duel pump running but the machine wouldn't turn over. Checked that door was properly closed and the safety arms were down all the way. Still won't crank over. Starter relay/solenoid or faulty ignition switch? Any other thing that might prevent the machine from turning over? 2013 Caterpillar 289D High Flow. Thanks any ideas would be appreciated.