Generator Set Switches; Engine Compartment Air Temperature Sensor; Other Switches And Sensors - Kohler 38RCL Manual

6.7 Generator Set Switches

WARNING
Hot engine and exhaust system.
Can cause severe injury or death.
Do not work on the generator set until
it cools.
Servicing the exhaust system.
severe injury or death. Do not touch hot engine parts. The
engine and exhaust system components become extremely
hot during operation.
WARNING
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
are in place.
Servicing the generator set when it is operating. Exposed
moving parts can cause severe injury or death. Keep
hands, feet, hair, clothing, and test leads away from the belts
and pulleys when the generator set is running. Replace
guards, screens, and covers before operating the generator
set.
Short circuits. Hazardous voltage/current can cause
severe injury or death. Short circuits can cause bodily injury
and/or equipment damage.
connections with tools or jewelry while making adjustments or
repairs. Remove all jewelry before servicing the equipment.
6.7.1 Engine Compartment Air
Temperature Sensor
The temperature sensor is used to monitor engine
compartment air temperature for the cooling fan
operation. See the service views in Section 1.7 for the
air temperature sensor location.
operation is temperature-dependent. See Section 4.10
for information about fan operation.
TP-6811 7/16
Hot parts can cause
Moving parts.
Do not contact electrical
The cooling fan
Check the high engine compartment temperature
sensor by performing the following test procedure. If the
sensor does not function as described, replace it.
Temperature Sensor Test Procedure
1. Press the OFF button on the controller to stop the
generator set and allow the generator set to cool.
2. Disconnect the temperature sensor and use an
ohmmeter to measure the resistance across the
sensor. The sensor resistance varies with
temperature and should be within the values
shown in Figure 6-12.
3. If the resistance is very low (indicating a short
circuit) or very high (indicating an open circuit),
replace the sensor.
Temperature, _C (_F)
30 (86)
100 (212)
Figure 6-12 Temperature Sensor CTS Resistance
Readings
Figure 6-13 Temperature Sensor Connector P5
6.7.2

Other Switches and Sensors

Other switches and sensors, such as the low oil
pressure sensor, are installed on the engine and
communicate with the engine ECM. Refer to the engine
service manuals for troubleshooting and service
information.
Section 6 Component Testing and Adjustment
Resistance, Ohms
2100--2400
180--200
GM69754
85