Excavator Operator Certification Exam Prep · Question
During a deep excavation, the operator notices that the stick is deviating horizontally during extension/retraction, requiring constant corrective steering. What is a probable cause related to the stick assembly?
A bent or compromised stick cylinder rod would cause uneven force distribution and friction during movement, leading to a noticeable horizontal deviation and re
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Question: During a deep excavation, the operator notices that the stick is deviating horizontally during extension/retraction, requiring constant corrective steering. What is a probable cause related to the stick assembly?
Answer options:
- Loose track tension on one side of the undercarriage.
- Uneven wear or damage to the stick cylinder's internal seals. ✅ A bent or compromised stick cylinder rod.
- Malfunctioning engine fan clutch.
Correct answer: A bent or compromised stick cylinder rod.
Explanation: A bent or compromised stick cylinder rod would cause uneven force distribution and friction during movement, leading to a noticeable horizontal deviation and requiring constant steering input to keep the bucket on line during deep, precise digging.
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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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