Gear Pump Service
5
15
8
3
14
12
1
25
(34
to 28 ft--lb
to 38 N--m)
2
11
10
4
23
4
13
16
17
20
19 18
24
21
(29
to 24 ft--lb
to 33 N--m)
14
9
12
21
7
28
4
4
29
13
22
27
25
21
(29
to 24 ft--lb
to 33 N--m)
26
12
6
Figure 55
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Shaft seal
Washer
Cap screw
O--ring
Washer
11. Drive gear assembly
12. Wear plate
13. Pressure seal
14. Backup gasket
15. Front plate assembly
16. Idler gear
21. Idler gear
22. Key
23. Front adapter plate
24. Rear adapter plate
25. Idler gear
Proportional valve
Plug
26. Rear body
17. Key
27. Backplate assembly
28. Plug
Plug
18. Gear
19. Middle body
20. Gear
O--ring
29. O--ring
Front body
Disassembly
NOTE: To maintain maximum pump efficiency, keep
body, gears and wear plates for each section together.
do not mix parts between different pump sections.
Work in a clean area as cleanliness is extremely impor-
tant when repairing hydraulic pumps. Thoroughly clean
the outside of pump. After cleaning, remove port plugs
and drain oil from pump.
IMPORTANT: Avoid using excessive clamping
pressure on the pump housing to prevent distorting
the housing.
1.
Scribe a line, at an angle, across front plate (15), bo-
dies (10, 19, 26), adapter plates (23, 24) and backplate
This will assure proper reassembly.
2. Clamp pump in vise, shaft end up and remove the
eight cap screws (3).
(27).
Hydraulic System (Rev. A)
Page 4 -- 58
Groundsmaster 4500--D/4700--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Wikipedia's Page | Toro Company |
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