Heavy Duty Equipment Technician Red Seal Exam Prep · Question
What safety precaution must be taken before working on any hydraulic system?
Hydraulic systems operate under high pressure, which can cause severe injury if released unintentionally. Always relieve all stored pressure before beginning an
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Question: What safety precaution must be taken before working on any hydraulic system?
Answer options:
- Ensure the system is fully pressurized.
- Rapidly cycle all hydraulic functions. ✅ Relieve all stored pressure in the system.
- Increase engine RPM to maximum.
Correct answer: Relieve all stored pressure in the system.
Explanation: Hydraulic systems operate under high pressure, which can cause severe injury if released unintentionally. Always relieve all stored pressure before beginning any work on hydraulic components.
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