Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A planetary gear set in an excavator's travel drive experiences premature wear on the planet gears and carrier bearings. Which of the following is the most probable cause?
Using an incorrect lubricant viscosity can lead to inadequate film strength, especially under heavy loads, causing increased friction, heat, and accelerated wea
Start free practice for Heavy Duty Equipment Technician Red Seal Exam Prep
300 questions · no signup required · 40 free questions per day
Question: A planetary gear set in an excavator's travel drive experiences premature wear on the planet gears and carrier bearings. Which of the following is the most probable cause?
Answer options:
- Low oil level in the connected hydraulic system.
- Excessive backlash due to worn splines on the sun gear. ✅ Incorrect lubricant viscosity for the operating temperature.
- High-frequency vibration from the undercarriage.
Correct answer: Incorrect lubricant viscosity for the operating temperature.
Explanation: Using an incorrect lubricant viscosity can lead to inadequate film strength, especially under heavy loads, causing increased friction, heat, and accelerated wear on critical components like planet gears and carrier bearings. OEM specifications for lubricants are crucial for longevity, as per CCOHS guidance on machine maintenance.
Start free practice for Heavy Duty Equipment Technician Red Seal Exam Prep
300 questions · no signup required · 40 free questions per day
More about Heavy Duty Equipment Technician Red Seal Exam Prep
Related Questions
- What is the primary purpose of a 'lock-up clutch' in a modern heavy-duty torque converter?
- A technician is performing a visual inspection of a heavy-duty truck's air brake system. Which of the followin
- During a pre-trip inspection of an air-braked commercial vehicle, the operator observes a sudden drop in air p
- A technician is preparing to lift a heavy engine component using a shop crane. The component's manufacturer sp
- A technician has completed a repair on a hydraulic cylinder on a piece of articulated equipment. Before connec
- A technician is installing a new final drive assembly on an excavator. The assembly weighs approximately 250 k
More for Heavy Duty Equipment Technician Red Seal Exam Prep candidates
FAQs
Question explanations
- What is the primary purpose of a 'lock-up clutch' in a modern heavy-duty torque converter?
- A technician is performing a visual inspection of a heavy-duty truck's air brake system. Which of the followin
- During a pre-trip inspection of an air-braked commercial vehicle, the operator observes a sudden drop in air p
- A technician is preparing to lift a heavy engine component using a shop crane. The component's manufacturer sp
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Heavy Duty Equipment Technician Red Seal Exam Prep Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.