Oil temperature switch (continued) – Generac Power Systems NP-40G User Manual
Page 97
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Oil Temperature Switch
(Continued)
NOTE: The CCG circuit board also has automatic
engine shutdown capability. The circuit board will
shut the engine down automatically on occurence
of (a) over-voltage, (bj under-voltage, (c) over
speed, (di zero current failure, (e) converter failure,
or (ef) micro-processor failure, see Section 1.2.
Section 6.5- ENGINE PROTECTIVE DEVICES
TESTING;
See Figure 3. Remove the switch and piace its
sensing tip into oii. Place a thermometer into the
oil. Connect the test leads of a VOM across the
switch terminals. The meter should read "Infinity''.
Heat the oil. When oil temperature reaches
approximately 287<-296a F. (142a-147a C.), the
meter should read "continuity" (a small resistance
Is acceptable).
NOTE: The above procedure yjplles to OII
Temperature Switch Part No. 94090, rated 293^ F.
(14S‘ C.). Some early production units were
equipped with a 265‘ F. switch which caused
premature high temperature shutdowns. The 265^
F. switch should be removed and replaced with the
Part No. 94090 switch.
Page 6.5-2
Revised- 02/07/95