A Series Diesel Engine Troubleshooting Logic 26
Low Power
Cause Correction
If the Condition is Slow Throttle
Response, Leaking Air Fuel
Control Tube or Malfunction
Control in the Pump
(Automotive Only)
Tighten the Fittings. Replace the Pump if
the Controls are Not Functioning.
Refer to Page 87
OK
Fuel Control Lever Not Moving to
Full Speed.
Check/Correct for Stop-to-Stop Travel.
Refer to Page 73, 225
OK
Mechanical/Shutdown Lever
Partially Engaged
Check/Replace Shutdown Lever in Run
Position. Refer to Page 74, 225
OK
High Oil Level
Check/Correct Oil Level
OK
Engine Overloaded
Check for Added Loading from
Malfunctioning Accessories or Driven
Units, Brakes Dragging and Other
Changes in Vehicle Loading
OK
Incorrect External Injection Pump
Timing
Verify Pump Timing Marks are Aligned.
Refer to Page 77, 96
OK
(Continued)
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