Loader Operator Certification Exam Prep · Question
A loader's hydrostatic transmission is exhibiting intermittent power loss and 'slipping' sensations under load. The engine RPMs seem normal, but the ground speed is inconsistent. What is a probable cause?
Intermittent power loss and slipping in a hydrostatic transmission with normal engine RPMs typically indicate issues within the hydrostatic drive system, such a
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Question: A loader's hydrostatic transmission is exhibiting intermittent power loss and 'slipping' sensations under load. The engine RPMs seem normal, but the ground speed is inconsistent. What is a probable cause?
Answer options: ✅ Contaminated hydraulic oil in the hydrostatic drive system.
- A worn-out engine fan belt.
- Low fuel pressure to the engine injectors.
- A faulty alternator.
Correct answer: Contaminated hydraulic oil in the hydrostatic drive system.
Explanation: Intermittent power loss and slipping in a hydrostatic transmission with normal engine RPMs typically indicate issues within the hydrostatic drive system, such as contaminated hydraulic oil affecting pump and motor performance. Engine fan belts, fuel pressure, or alternators would not directly cause this symptom in a hydrostatic drive.
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Question explanations
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