Toro Workman HD Series - Primary Hydraulic System Gear Pump Service (Workman HDX;HDX-D)

Workman HD SeriesPage 9 − 38Hydraulic System
Primary Hydraulic System Gear Pump (Workman HDX and HDX−D)
Figure 28
FRONT
RIGHT
1. Gear pump
2. O−ring
3. Hydraulic fitting
4. Hose clamp
5. Suction hose (from transaxle)
6. O−ring
7. Hose (to lift valve)
8. O−ring
9. Hydraulic fitting
10. Flange nut (4)
11. Square key
12. Pump/engine mount
13. Flange head screw (4)
14. Flange head screw (8)
15. Hex head screw (2)
16. Square head screw (2)
17. Pump hub
18. Coupling
19. Hex head screw (2)
20. Flat washer (2)
21. Hex flange nut (2)
22. O−ring
23. 90 hydraulic fitting
24. High flow gear pump
25. Suction hose (from reservoir)
26. Hose (to high flow manifold)
1
3
4
5
6
7
8
9
11
12
13
2
10
LOCTITE #242
15 to 20 ft−lb (20 to 27 N−m)
15 to 20 ft−lb
(20 to 27 N−m)
14
14
19
15
16
16
17
18
20
21
6
7
8
9
3
4
5
2
3
4
2
26
22
2
23
24
25
HIGH FLOW
GEAR PUMP
ANTI−SEIZE
LUBRICANT
NOTE: The primary hydraulic system gear pump used
on Workman HDX and HDX−D vehicles is a single gear
pump. If the High Flow Hydraulics Kit is installed, a sec-
ond pump section is added to the primary system gear
pump. Both gear pump assemblies are shown (Fig. 28).