Toro 30857 - Fan Control Manifold Service

Groundsmaster 4500--D/4700--DHydraulic System Page 4 -- 116
Fan Control M anifold Service
1. Manifold body
2. Zero leak plug (#6) (3 used)
3. Zero leak plug (#4) (2 used)
4. Check valve (port CV)
5. Flow divider cartridge (port FD)
6. Solenoid coil (2 used)
7. Nut
8. Solenoid valve (port S1)
9. Proportional relief cartridge (port TS)
10. Nut
Figure 96
7
4
6
3
2
1
5
9
8
2
2
6
25 ft--lb
(33.9 N--m)
25 ft--lb
(33.9 N--m)
20 ft--lb
(27.1 N--m)
5 ft--lb
(6.8 N--m)
20 ft--lb
(27.1 N--m)
25 ft--lb
(33.9 N--m)
25 ft--lb
(33.9 N--m)
5 ft--lb
(6.8 N--m)
1
10
UP
UP
50 ft--lb
(68 N--m)
NOTE: The ports on the fan control manifold are
markedforeasyidentificationofcomponents(e.g.STis
the supply to the steering control valve and FD is the
locationoftheflowdividercartridgevalve).SeeHydrau-
licSchematicsinChapter9--FoldoutDrawingstoidenti-
fythefunctionofthehydrauliclinesandcartridgevalves
at each port location.
For solenoid and control valve service procedures, see
4WD/2WDControl Manifold Service in this s ection. Re-
fer to Figure 96 for cartridge valve and plug installation
torque.
NOTE: The fan control manifold includes several zero
leak plugs. These plugs havea tapered sealing s urface
on the plug head that is designed to resist vibration in-
ducedplug loosening.Thezeroleakplugsalso havean
O--ring as a secondary seal.Ifzeroleakplug removal is
necessary, lightly rap the plug head using a punch and
hammer before using an allen wrench to remove the
plug:theimpactwillallowplugremovalwithlesschance
of damage to the socket head of the plug.