Hey guys how do you Change the cutting height on a 52" Ferris Hyrdro walk behind. It is an older model that we just got the owners manual on Ferris's website says this http://www.ferrisindustries.com/pdf_files/TP_100_7056_03_WD_F.pdf But we don't see any spacers on our mower now. We will post pictures tommorrow. Could it be possible that the spacer are under the deck on our model. It is a DDS52KA we believe, but the infromation is rubbed of the model/serial# plate. All that is there is DDS52KA engraved in the plate.