Excavator Operator Certification Exam Prep · Question
During a pre-operational walkaround of an excavator, you notice a significant amount of grease around the swing bearing. What is the most appropriate action to take?
Excessive grease around the swing bearing, especially if it appears fresh, could indicate over-greasing or a compromised seal, both of which require investigati
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Question: During a pre-operational walkaround of an excavator, you notice a significant amount of grease around the swing bearing. What is the most appropriate action to take?
Answer options:
- Continue operating, as this indicates recent greasing and is normal.
- Clean the excess grease off and document the observation for routine maintenance. ✅ Investigate for a potential seal failure or over-greasing, and report to maintenance supervisor.
- Add more grease to ensure proper lubrication, then continue operations.
Correct answer: Investigate for a potential seal failure or over-greasing, and report to maintenance supervisor.
Explanation: Excessive grease around the swing bearing, especially if it appears fresh, could indicate over-greasing or a compromised seal, both of which require investigation as per manufacturer guidelines and good maintenance practices. This prevents potential damage or premature wear.
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Question explanations
- During a final inspection of an excavator, prior to beginning work, an operator notices significant play in th
- An excavator operator is preparing to dig a trench in cohesive soil. To achieve maximum breakout force, what a
- Which control typically governs the arm (or dipper arm) movement for an excavator?
- What condition might require sloping or shoring of a trench less than 1.2 meters (4 feet) deep?
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