High Temperature Switch (Gr3200-D) - Toro Greensmaster 3200 Service Manual

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).
CAUTION
Handle the hot oil with extreme care to pre-
vent personal injury or fire.
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.
Greensmaster 3200/3200–D
1. High temperature shutdown switch
Page 6 – 35
Figure 32
Figure 33
Electrical System