High Temperature Shut-Down Switch
l.
o o
j
2
1
1. Lower the coolant level in the engine and remove the
high temperature shut-down switch.
2. Put the switch in a container of oil with a thermometer
and heat the oi
3. The switch is normally open (N.O.) and should close
at approximately 221 F (105 C).
Handle hot oil with special care to prevent
personal in ury or fire.
Figure 22
CAUTION
1. High temperature shut-down switch
2. Temperature gauge sender
Figure 23
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.
90.5 - 117.5 ohm at 160
o
F (70
o
C)
21.3 - 26.3 ohm at 207
o
F (115
o
C)
j
Handle hot oil with special care to prevent
personal in ury or fire.
CAUTION
Figure 24
Testing P
age 5 - 24 Reelmaster
®
335-D