Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A hydraulic system frequently experiences overheating. After checking fluid level and pump output, the technician suspects a component issue. What valve is often implicated in causing excessive heat when it's constantly diverting fluid?
A relief valve that is stuck open, partially open, or set too low will constantly divert pump flow back to the reservoir, converting the fluid's potential energ
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Question: A hydraulic system frequently experiences overheating. After checking fluid level and pump output, the technician suspects a component issue. What valve is often implicated in causing excessive heat when it's constantly diverting fluid?
Answer options:
- Check valve
- Sequence valve ✅ Relief valve
- Counterbalance valve
Correct answer: Relief valve
Explanation: A relief valve that is stuck open, partially open, or set too low will constantly divert pump flow back to the reservoir, converting the fluid's potential energy into heat, leading to system overheating.
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