Perkins 1104E Series Troubleshooting Manual page 208

208
Troubleshooting Section
C. Measure the resistance between the following
pin locations:
•
P20:29
•
P20:37
D. Use the electronic service tool to observe the
voltage while the Automatic Set Speed Disengage
Switch is operated OFF and ON.
Expected Result:
The electronic service tool will show that the status
of the automatic set speed disengage switch is in
the "ENGAGED" position. The voltage should be
between 0 V and 0.8 V.
The electronic service tool will show that the status
of the automatic set speed disengage switch is in
the "DISENGAGED" position. The voltage should be
between 12.3 V and 12.9 V.
Results:
•
OK – The set speed disengage switch operates
correctly. STOP.
•
Not OK – Proceed to Test Step 4.
Test Step 4. Check the Speed Control
Switch
Illustration 119
RENR2696-01
g00955250