Groundsmaster 4000--D/4010--DHydraulic System Page 4 -- 124Engine Cooling Fan Motor Service1. Flange washer2. O--ring3. Front flange4. Dust seal5. Retaining ring6. Front wear plate7. Shaft seal8. Backup gasket9. Pressure seal10. Rear wear plate11. Body12. Idler gear13. Cap screw (4 used)14. Dowel (2 used)15. Drive gear16. Washer (4 used)Figure 88874325691011912138141615141(45 N--m)33 ft--lbNOTE: Internal components for a cooling fan motor arenot available separately. Disassemble motor for clean-ing, inspection and seal replacement only.Disassembly (Fig. 88)1. Plug motor ports and clean the outside of the motorthoroughly. After cleaning, remove plugs and drain anyoil out of the motor.2. Use a marker to make a diagonal line across thefront flange and body for assembly purposes (Fig. 89).IMPORTANT: Prevent damage when clamping thefan motor in a vise; clamp on the front flange only.Also, use a vise with soft jaws.3. Clamp front flange of motor in a vise with soft jawswith the shaft end down.4. Loosen cap screws from the rear of the body.5. Remove motor from the vise. Turn motor so that theshaft end is facing down. Remove cap screws.6. Carefully remove body. Lift body straight up to re-move. Make sure the rear wear plate remains on thedrive and idler gear shafts. Remove and discard O--rings from the body. Locate and retrieve dowel pins.Figure 89MARKER LINEIMPORTANT: Note position of the open and closedside of the wear plates before removing. Also, iden-tify wear plates (front and rear) with a marker forproper assembly.7. Carefully remove rear wear plate, idler gear, drivegear and front wear plate from the front flange.8. Remove and discard back--up gaskets and pressureseals from wear plates.9. Turn front flange over, with seal side up.
