Temperature Gauge Sender - Toro Workman 3000 Series Service Manual

Temperature Gauge Sender

1. Lower the coolant level in the engine and remove the
temperature gauge sender.
2. Put the switch in a container of oil with a thermometer
and heat the oil.
3. With an Ohm meter connected as shown, the follow ­
ing resistance readings should be indicated.
o
90.5 - 117.5 ohm at 160 F (70
o
21.3 - 26.3 ohm at 207 F (115
CAUTION
Handle hot oil with special care to prevent
personal injury or fire.
Workman 3300-D/4300-D
o
C)
o
C)
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Figure 27
1. Temperature gauge sender
Figure 28
Liquid Cooled Diesel Engine