Toro Reelmaster 3100-D Service Manual page 256

Testing (continued)
Electrical System: Component Testing
g226814
5. Put the end of the switch in a container of fluid with a thermometer and then
slowly heat the fluid
The fluid is hot and could cause personal injury or fire.
Handle the hot fluid with extreme care.
6. Check the resistance of the switch with a multimeter (ohms setting) as the oil
temperature increases. The high-temperature shutdown switch is normally
open.
7. The high temperature shutdown switch should close between 107° and
113°C (225° and 235°F).
8. Allow oil to cool while observing temperature.
9. The high temperature shutdown switch should open at approximately 104°C
(219°F).
10. If the switch does not meet the specifications, replace the switch.
11. After you complete the testing, install the temperature switch to the engine
housing, do the following steps:
A. Clean the threads of the housing and switch. Apply thread sealant to
the threads of the switch.
B. Thread the switch into the housing; torque the switch to 29.4 to 39.2
N∙m (22 to 28 ft-lb).
C. Connect the harness wires to the temperature switch.
12. Fill the engine cooling system; refer to the Traction Unit Operator's Manual.
13. Lower the hood and secure it with the latches.
Figure 133
(Figure 133).
CAUTION
Page 6–32 Reelmaster ® 3100-D/3105-D
20252SL Rev A