Toro Groundsmaster 4000-D Service Manual

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Contents

Groundsmaster 4000--D/4010--DHydraulic System Page 4 -- 84Gear Pump Service1. Front cover2. Dowel pin (4 used)3. Pressure seal4. Back--up gasket5. Front thrust plate6. Seal (8 used)7. Front body8. Idler gear9. Drive shaft10. Thrust plate (7 used)11. Dowel pin (6 used)12. Splined connecting shaft (3 used)13. Flange (3 used)14. Back--up gasket15. Pressure seal16. Drive gear17. Idler gear18. Body19. Body20. Idler gear21. Drive gear22. Rear body23. Rear cover24. Washer (4 used)25. Cap screw (4 used)Figure 5833 ft--lb(45 N--m)10118155319202122232497612161718414131225Disassembly (Fig. 58)NOTE: The gear pump must be replaced as a completeassembly. Individual gears, housings and thrust platesare not available separately. Disassemble gear pumpfor cleaning, inspection and seal replacement only.IMPORTANT: Keep bodies, gears, flanges andthrust plates for each pump section together; do notmix parts between pump sections.1. Plug pump ports and thoroughly clean exterior ofpump with cleaning solvent. Make sure work area isclean.2. Use a marker to make a diagonal line across thegear pump for assembly purposes (Fig. 59). Figure 59DIAGONAL LINE