Heavy Duty Equipment Technician Red Seal Exam Prep · Question
During a routine inspection of a wheel loader's final drive, you notice a distinct 'clunking' sound during directional changes and acceleration. No leaks are apparent. What is the most probable cause?
A 'clunking' sound, especially during load changes (acceleration, directional changes), is a classic symptom of excessive backlash or play within gear sets, ind
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Question: During a routine inspection of a wheel loader's final drive, you notice a distinct 'clunking' sound during directional changes and acceleration. No leaks are apparent. What is the most probable cause?
Answer options: ✅ Excessive backlash in the final drive gears
- A failing torque converter lock-up clutch
- Low pressure in the steering hydraulic circuit
- A blocked transmission breather
Correct answer: Excessive backlash in the final drive gears
Explanation: A 'clunking' sound, especially during load changes (acceleration, directional changes), is a classic symptom of excessive backlash or play within gear sets, indicating wear in the final drive gears or splines.
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