Greensmaster 3250--DDPA Cutting Units Page 7 -- 30Roller Service1. Wiehle roller2. Smooth roller3. Roller shaft4. Ball bearing5. Seal6. V--ring7. Bearing lock nutFigure 297654213456725 to 30 ft--lb(34 to 41 N--m)25 to 30 ft--lb(34 to 41 N--m)Disassembly1. To hold roller shaft for bearing lock nut removal,install a 3/8--24 UNF 2B screw into threaded end of rollershaft and secure screw in place with jam nut. While re-taining shaft, remove bearing lock nut from each end ofroller shaft.2. Remove V--ring from each end of roller.3. Carefully inspect seating surface and threads ofbearing lock nuts. Replace lock nut if any damage isfound.4. Loosely secure roller assembly in bench vise andlightly tap one end of roller shaft until seal and bearingare removed from roller cavity. Remove second seal andbearing from roller cavity by tapping on shaft.5. Clean bearing cavity in roller and remove any rustwith crocus cloth.Assembly1. Place roller shaft into roller.NOTE: If bearing lock nuts are being replaced, useoriginal lock nuts for assembly purposes, if possible.This will preserve the patch lock feature in the new locknuts. Use the new nuts only after new bearings andseals have been installed.1. Roller2. Ball bearing3. Seal4. V--ring5. Bearing lock nut6. Roller shaftFigure 303 542161. Bearing lock nut2. Black assembly washer3. BearingFigure 313 2 1
