Question 232Motor Plants - 1st Asst/Chief70% to pass
A diesel generator governor is hunting. After changing the oil, the governor is flushed and the compensation needle valve is adjusted, but the hunting persists. You should NOW_______________.
AI Explanation
The correct answer is C) carefully check for binding in the governor linkage.
When a diesel generator governor is hunting, it is often due to an issue with the governor linkage. Binding or sticking in the linkage can prevent the governor from properly regulating the fuel supply, causing the hunting behavior. Checking the linkage for any issues like binding, wear, or misalignment is the appropriate next step after flushing the governor and adjusting the compensation needle valve.
The other options are not the best course of action in this situation. Setting the speed droop adjustment to zero (A) would not address the root cause of the hunting. Calibrating the fuel pump rack settings (B) is not necessary if the issue is with the governor linkage. Checking the air intake manifold pressure (D) may not be relevant to the hunting problem.
Related Questions
#230 What is the primary purpose of the pneumatic component shown in the illustration? Illustration MO-0119 #231 The reversing cams of some four-stroke cycle diesel engines are brought into position by_______________.#233 The most common contaminate of governor hydraulic fluid is_______________.#234 If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will_______________.#235 A large change in ambient temperature, or using an oil of a viscosity different than the one recommended by the manufacturer in a mechanical hydraulic governor, will result in the need to adjust the _______________.