Actually you cannot just switch the hoses at the couplers or operate the unit in reverse flow because the safety shut off valve is only designed to have flow in one direction.
The port marked A on the safety valve is Pressure and B is return. Pg 9 in the manual.
If you have you manual it shows you on pg 17 how to reverse the blades.
Essentially remove the cover and follow the two hoses from the hydraulic motor back to the safety valve block and swap them there. Both hoses should be #12 JIC female 90 degree fitting that you would loosen and swap.
If you need a copy of the manual let me know
Ken