caution - Toro

Gear Pump Service
18
3
4
5
6
9
10
12
13
14
15
16
17
11
19
24
21
9
1
2
7
8
11
21
25
26
22
23
22
33 ft -lb
(45 N -m)
20
1. Dust seal
2. Retaining ring
3. Flange washer
4. Shaft seal
5. Front cover
6. Dowel pin (16 used)
7. Pressure seal
8. Back -up gasket
9. Thrust plate (8 used)
Figure 50
10. Seal (8 used)
11. Idler gear
12. Drive shaft
13. Back -up gasket
14. Pressure seal
15. Front body
16. Splined connecting shaft (3 used)
17. Flange
18. Drive gear
19. Body
20. Body
21. Drive gear
22. Idler gear
23. Rear body
24. Rear cover
25. Cap screw (4 used)
26. Washer (4 used)
Disassembly (Fig. 50)
NOTE: The gear pump must be replaced as a complete
assembly. Individual gears, housings and thrust plates
are not available separately. Disassemble gear pump
for cleaning, inspection and seal replacement only.
DIAGONAL LINE
IMPORTANT: Keep bodies, gears, flanges and
thrust plates for each pump section together; do not
mix parts between pump sections.
1. Plug pump ports and thoroughly clean exterior of
pump with cleaning solvent. Make sure work area is
clean.
2. Use a marker to make a diagonal line across the
gear pump for assembly purposes (Fig. 51).
Hydraulic System Page 4 - 70
Figure 51
Groundsmaster 4100--D