Hydraulic Control Manifold Service: 2 Wheel/4 Wheel Drive Control
80
(108
to 90 ft--lb
to 122 N--m)
25
18
19 12
18
1
13
16
7
17
19
18
19
80
(108
to 90 ft--lb
to 122 N--m)
17
20
21
18
7
16
16 17
19
17
16
17
16
5
4
12
24
6
13
17
11
15
16
14
9
1213
21
3
10
60
(81
to 70 ft--lb
to 95 N--m)
8
20
35
(47
to 40 ft--lb
to 54 N--m)
PLUG TORQUE
2
SAE #2: 41 TO 49 in--lb (4.6 to 5.6 N--m)
SAE #4: 6 to 10 ft--lb (8 to 13 N--m)
SAE #5: 10 to 15 ft--lb (13 to 20 N--m)
SAE #6: 15 to 20 ft--lb (20 to 27 N--m)
SAE #10: 35 to 40 ft--lb (48 to 54 N--m)
25
to 30 ft--lb
23
(34 to 41 N--m)
4
(5
to 6 ft--lb
to 8 N--m)
22
Figure 65
1.
Manifold body
Solenoid valve (SV: port 2)
Seal kit
Check valve (CV: port 3)
Seal kit
Expander plug (not serviced)
Seal kit
10. Reducing valve (PR1: port 8)
11. Seal kit
12. Plug (SAE #2)
13. O--ring
14. Plug (SAE #4)
15. O--ring
16. Plug (SAE #5)
17. O--ring
18. Plug (SAE #6)
19. O--ring
20. Plug (SAE #10)
21. O--ring
22. Solenoid coil
23. Nut
24. Expander plug (not serviced)
25. Control valve (PD1 & PD2: ports 5A &
5B)
2.
3.
4.
5.
6.
7.
8.
9.
Relief valve (RV5: port 7)
Seal kit
NOTE: The ports on the manifold are marked for easy
identification of components. Example: P1 is a piston
pump connection port and 2 is the location for the sole-
noid valve (See Hydraulic Schematics to identify the
function of the hydraulic lines and cartridge valves at
each port).
IMPORTANT: Use care when handling the cartridge
valve. Slight bending or distortion of the stem tube
can cause binding and malfunction.
3.
Remove cartridge valve with a deep socket wrench.
Note correct location for o--rings, sealing rings, and
backup rings. Remove and discard seal kit.
Cartridge Valve Service
4.
Visually inspect the port in the manifold for damage
1.
valve.
Make sure the manifold is clean before removing the
to the sealing surfaces, damaged threads, andcontami-
nation.
2.
ing solenoid to the cartridge valve. Carefully slide sole-
noid off the valve.
If cartridge is solenoid operated, remove nut secur-
Hydraulic System (Rev. A)
Page 4 -- 72
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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