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
an
d heat the oil.
3. With an Ohm meter connected as shown, the follow-
in
g resistance readings should be indicated.
90.5 - 117.5 ohm at 160
o
F (70
o
C)
21.3 - 26.3 ohm at 207
o
F (115
o
C)
1
Figure 27
CAUTION
1. Temperature gauge sender
Handle hot oil with special care to prevent
personal injury or fire.
Figure 28
Liquid Cooled
Diesel Engine
Workman 3300-D/4300-D Page 4 - 27 Liquid Cooled Diesel Engine