Toro 3200, Service Manual

Page: 211 / 274

High Temperature Switch (GR 3200–D)
The switch is located on top of the water pump. The
pump is between the fan pulley assembly and the cylin-
der head. There is a blue wire attached to the switch
(Fig. 32).
1. Lower the coolant level in the engine and remove
the high temperature shutdown switch.
2. Put the switch in a container of oil with a thermome-
ter and slowly heat the oil (Fig. 33).
1
CAUTION
Handle the hot oil with extreme care to pre-
vent personal injury or fire.
Figure 32
1. High temperature shutdown switch
3. Check the continuity of the switch with a multimeter
(ohms setting). The switch is normally open and should
close at 206 to 218
_
F (97 to 103
_
C)
4. Allow the oil to cool. The switch should open at
194
_
F (90
_
C).. Replace switch as necessary.
5. Install switch and restore coolant level to the engine.
Figure 33
Greensmaster 3200/3200–D
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Electrical System
Electrical
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