Gear Pump Service - Toro Groundsmaster 3505-D Service Manual

Gear Pump Service (Serial Numbers Above 260000400)
6
1
3
2
1. Front cover
2. Pressure seal
3. Back- -up gasket
4. Front thrust plate
5. Idler gear
6. Drive shaft
7. Rear thrust plate
Disassembly (Fig. 33)
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.
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. 34).
Hydraulic System
10
2
8
3
8
7
5
4
Figure 33
8. Dowel pin
9. Seal
10. Body
11. Seal
12. Splined connecting shaft
13. Pressure seal
14. Back- -up gasket
Page 4 - - 91.1
18
17
12
11
13
9
15. Front thrust plate
16. Idler gear
17. Drive gear
18. Rear thrust plate
19. Rear cover
20. Washer (4 used)
21. Cap screw (4 used)
DIAGONAL LINE
Rev. B
19
14
13
16
15
14
33 ft- -lb
(45 N- -m)
Figure 34
Groundsmaster 3505--D
21
20