I just purchased a MF 4710 with 4WD and cab. I’ve read the operations manual and need some clarification. It appears that 4WD cannot actually be turned off - there only appears to be auto and manual mode from what I can see. It states that in auto it will disengage at various times (high rate of travel, independently braking, etc.) but apparently re-engages when in normal operation. My question is - it’s there no way to actually turn off 4WD? Just leave it in auto mode normally and run it like that?