Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A heavy equipment technician is troubleshooting a persistent issue of a track machine continually de-tracking on the left side, despite repeated tension adjustments. Visual inspection reveals no obvious damage to the idler or sprocket. What is the most likely root cause?
A seized or heavily worn track roller bearing can cause the track roller to bind or wobble, pushing the track laterally off its guides, leading to chronic de-tr
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Question: A heavy equipment technician is troubleshooting a persistent issue of a track machine continually de-tracking on the left side, despite repeated tension adjustments. Visual inspection reveals no obvious damage to the idler or sprocket. What is the most likely root cause?
Answer options:
- Excessive wear on the track shoes' grousers. ✅ A seized or worn track roller bearing on the left side.
- Insufficient lubrication in the track chain pins.
- Operating primarily on very steep inclines.
Correct answer: A seized or worn track roller bearing on the left side.
Explanation: A seized or heavily worn track roller bearing can cause the track roller to bind or wobble, pushing the track laterally off its guides, leading to chronic de-tracking even with proper tension. Grouser wear affects traction, pin lubrication affects internal wear, and steep inclines can contribute but are less likely to be the sole root cause of persistent de-tracking if tension is correct.
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