Toro Reelmaster 5510 Series, Руководство по обслуживанию

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Testing the Temperature Sender (continued)
CAUTION
Ensure engine is cool before removing the temperature sender from
engine.
g228834
Figure 267
4. Put sender in a container of oil with a thermometer and slowly heat the oil
( Figure 267 ).
CAUTION
Handle the hot oil with extreme care to prevent personal injury or fire.
Note: Prior to taking resistance readings with a digital multimeter, short the
meter test leads together. The meter will display a small resistance value
(usually 0.5 ohms or less) due to the internal resistance of the meter and
test leads. Subtract this value from the measured value of the component
you are testing.
5. Check resistance of the sender with a multimeter (ohms setting) as the
temperature increases and record measured resistance values. Compare to
specifications below. Replace sender if specifications are not met.
Oil Temperature Temperature Sender Resistance
20°C (68°F) 11.4 to 13.6 K ohms
60°C (140°F) 2.3 to 2.6 K ohms
100°C (212°F) 0.6 to 0.7 K ohms
6. When temperature sender testing is complete, install temperature sender to
the water flange.
A. Clean threads of water flange and temperature sender. Apply thread
sealant to the threads of the sender.
B. Screw sender into the water flange until it is finger tight. Then, tighten
sender an additional 2 to 3 full turns.
C. Connect wire harness connector to sender.
7. Fill engine cooling system.
8. Close and secure hood.
Reelmaster ® 5410/5510/5610 Series Page 7–99 Electrical System: Testing the Electrical Components
15216SL Rev C