You are assigned to operate a wheel loader that has been working for 8 hours. During your pre-shift walkaround, you find a small, fresh accumulation of oil (approx. 50 mL) beneath the final drive housing. What should be your primary concern and action?

Question: You are assigned to operate a wheel loader that has been working for 8 hours. During your pre-shift walkaround, you find a small, fresh accumulation of oil (approx. 50 mL) beneath the final drive housing. What should be your primary concern and action?

Answer options: ✅ The oil leak indicates a potential seal failure that requires immediate investigation and repair before operation.

• It's likely residual oil from a previous spill; continue monitoring the area for further leakage during operation.
• The quantity is minimal; top up the final drive fluid reservoir and proceed with operations.
• This is normal seepage for a machine of this age; document it and proceed.

Correct answer: The oil leak indicates a potential seal failure that requires immediate investigation and repair before operation.

Explanation: Any fresh accumulation of oil, especially from a critical component like a final drive, indicates a seal breach or component failure. Operating with such a leak risks complete component failure, potentially leading to loss of control, fire, or significant environmental damage. Immediate investigation and repair are mandatory. The OHSA general duty clause requires employers to take every precaution reasonable to protect workers, and operators are responsible for reporting defects.