Fan Control Manifold Service - Toro Groundsmaster 4500-D Series Service Manual

Fan Control Manifold Service

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1. Manifold body
2. Zero leak plug (#6) (3 used)
3. Zero leak plug (#4) (2 used)
4. Check valve (port CV)
Hydraulic System: Service and Repairs
5. Flow divider cartridge (port FD)
6. Solenoid coil (2 used)
7. Nut
8. Solenoid valve (port S1)
Note: The ports on the fan control manifold are marked for easy identification of
components (e.g. ST is the supply to the steering control valve and FD is the
location of the flow divider cartridge valve). See
the function of the hydraulic lines and cartridge valves at each port location.
For solenoid and control valve service procedures, see
Service (GM4500-D) (page
plug installation torque.
Note: The fan control manifold includes several zero leak plugs. These plugs
have a tapered sealing surface on the plug head that is designed to resist
vibration induced plug loosening. The zero leak plugs also have an O-ring as a
secondary seal. If zero leak plug removal is necessary, lightly rap the plug head
using a punch and hammer before using an allen wrench to remove the plug:
the impact will allow plug removal with less chance of damage to the socket
head of the plug.
Figure 141
10.
5–134). Refer to Figure 141
Page 5–154
9. Proportional relief cartridge (port
TS)
Nut
Appendix A (page A–1)
Deck Control Manifold
for cartridge valve and
Groundsmaster ®
19245SL Rev A
to identify
4500-D/4700-D