Gear Pump Service - Toro Groundsmaster 5900 Series Service Manual

Gear Pump Service

2
1
13
12
5
4
3
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1. Front cover
2. Plug
3. Sleeve bearing (8)
4. Uni−ring (4)
5. Pressure seal (4)
6. Thrust plate (4)
7. Drive shaft/gear
8. Body seal (2)
9. Steel bushing (8)
10. Pump body − P1
Gear Pump Disassembly
Hydraulic System: Service and Repairs
7
6
5
4
3
8
3
18
21
4
5
6
14
6
24
23
22
11. Splined connecting shaft
12. Retaining ring
13. Shaft seal (2)
14. Idler shaft/gear (2)
15. Pump body − P2
16. Dowel pin (4)
17. Splined connecting shaft
18. Drive shaft/gear
19. Washer (4)
20. Cap screw (4)
(Figure 82)
Note: If items other than pump seals are worn or damaged, 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.
8
3
4
5
6
15
14
9
26
22
23
24
25
Figure 82
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
Page 5–88
11
10
9
17
16
140 N·m
(103 ft−lb)
20
19
30
29
28
26
16
27
45 N·m
(33 ft-lb)
Drive shaft/gear
Uni−ring (2)
Pressure seal (2)
Thrust plate (2)
Idler shaft/gear
Body seal
Pump body (P3)
Rear cover
Washer (4)
Cap screw (4)
Groundsmaster
16227SL Rev B
® 5900 & 5910