KennyV,
Mine is a Grand L3130 and it has an independent PTO. The foot clutch has nothing to do with the PTO on mine so it's not just a 3710 or specific model. I think all the Grand L's have them. At least the newer ones in the last few years...A little Note in the manual.*****
Tractor will not start if PTO lever is in the "ON" position.***When the clutch pedal is depressed the PTO disengages { on the HST MODEL]
When the clutch pedal is depressed on a [GST, DT, Model] the PTO engages.......Hope this helps a little further.........