Perkins 1104E Series Troubleshooting Manual page 110

110
Troubleshooting Section
Test Step 8. Check the Position of
Throttle Demand Sensor.
A. Turn the keyswitch to the OFF position.
B. Install a Breakout T with 3 terminals to the throttle
demand sensor.
C. Turn the keyswitch to the ON position.
D. Measure the voltage between terminal C and
terminal B of the Breakout T.
E. Observe the voltage while the engine speed
control is moved from the minimum to the
maximum position.
Expected Result:
The voltage should be between 20 and 80 percent of
the sensor supply voltage when the speed control is
moved from the minimum to the maximum position.
Results:
•
OK – The throttle demand sensor is working
correctly. Proceed to Test Step 9.
• Not OK – The throttle demand sensor is faulty.
Proceed to Test Step 10.
RENR2696-01