Gear Pump Service
9.5
(13
to 12.5 ft–lb
to 17 N–m)
18
17
16
15
14
23 1213
20
11
10
19
9
16
12
4
8
7
6
11
4
5
4
21
3
2
1
12
22
Figure 23
1.
2.
3.
4.
5.
6.
7.
8.
Retaining ring
Shaft seal
Spacer
Crescent ring
Square key
Drive shaft
Shear pin
Stator
9.
Seal plate
17. Gear end housing
18. Socket head cap screw
19. Plug
10. Wear plate
11. Gear
12. Bearing
20. Idler shaft
13. Pressure plate
14. Back–up seal
15. Pressure plate seal
16. Dowel pin
21. Wear plate seal
22. Bearing
23. Ball key
Before disassembling gear pump, plug ports, wash exte-
rior of pump with cleaning solvent and dry pump thor-
oughly.
4. Clean any foreign material from seal bore and drive
shaft of pump.
5.
Install spacer (Item 3) on driveshaft.
Shaft Seal Replacement (Fig. 23)
6.
Put a seal protector tool on driveshaft or apply thin
1.
Remove retaining ring (Item 1).
plastic or tape on shaft to protect new seal from damage.
2.
Punch two (2) holes in face of seal, 180o apart, and
install metal screws. Remove shaft seal from gear pump
by grasping and pulling on screws.
7. Apply grease or petroleum jelly to inside diameter of
new seal.
8.
Use a seal installation tool to install new shaft seal
IMPORTANT: Do not try to pry seal out of housing.
This can damage the shaft seal bore so oil will leak
past the seal.
(Item 2). Make sure seal is installed square with seal
bore.
9.
Install retaining ring (Item 1).
3.
Discard shaft seal (Item 2). Remove spacer (Item 3).
Hydraulic System
Page 9 – 28
Workman 3000/4000 Series
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Workman 3000, Toro Workman 4000 |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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