toro zero turn model z5035 need help

[kowtownkid]

my toro mod # z5035 hydraulic control on left side just stopped work.work fine when parked last. rt works great.never had a issue.can the control stick up.also can't find a resovoir tank

 

[ILENGINE]

Double check the position of the bypass lever, and also take a good look at the drive belts that drive the hydro's some have one belt for both drives and some have separate belts for each drive.