Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A hydrostatic drive system on a skid steer loader is losing power and speed intermittently. The engine runs fine. What is the most likely cause, considering the intermittent nature?
A clogged charge pump inlet screen or filter can restrict fluid flow to the main hydrostatic pumps, leading to cavitation and intermittent loss of power and spe
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Question: A hydrostatic drive system on a skid steer loader is losing power and speed intermittently. The engine runs fine. What is the most likely cause, considering the intermittent nature?
Answer options: ✅ Clogged charge pump inlet screen or filter
- Broken main drive shaft
- Severely worn track pads
- Engine coolant temperature sensor fault
Correct answer: Clogged charge pump inlet screen or filter
Explanation: A clogged charge pump inlet screen or filter can restrict fluid flow to the main hydrostatic pumps, leading to cavitation and intermittent loss of power and speed, especially as demand increases or fluid viscosity changes.
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