hey Todd,
your unit doesn't have the hub lockout caps then it will have a brake release mechanisim.
The hub lockout caps were not used on this model, only a hex nut lock cap that holds the nut for the hub onto motor assy.
If you want to move this unit if it is not drivable then you'll have to use the manual brake release.
The brake release hand pump manifold is mounted at the non-steer end of
the chassis on the ground controls side of the machine.