Gear Pump Service (Serial Numbers Below 260000400) - Toro 30821 Service Manual

Gear Pump Service (Serial Numbers Below 260000400)

18
17
8
10
11
12
1. Front plate
2. Back plate
3. Front body
4. Rear body
5. Drive gear
6. Front idler gear
7. Rear idler gear
Disassembly (Fig. 109)
1. Plug pump ports and clean the outside of the pump
thoroughly. After cleaning, remove plugs and drain any
oil out of the pump.
2. Use a marker to make a diagonal line across the
front plate, front body, adapter plate, rear body, and back
plate for assembly purposes (Fig. 110).
IMPORTANT: Avoid using excessive clamping
pressure on the pump housing to prevent distorting
the housing.
Hydraulic System (Rev. G)
1
8
10
11
12
14
14
4
14
12
16
Figure
8. Back- up gasket
9. Rear wear plate
10. Pressure seal
11. Front wear plate
12. O- ring
13. Adapter Plate
Page 4 - 108
3
12
6
7
5
9
10
8
109
MARKER LINE
15
9
10
8
2
19
38 to 43 ft- lb
(51 to 58 N- m)
14. Dowel
15. Coupler
16. Drive gear
17. Shaft seal (if equipped)
18. Retaining ring (if equipped)
19. Cap screw
Figure 110
Groundsmaster 3500- D
13