Heavy Duty Equipment Technician Red Seal Exam Prep · Question
What is the primary function of the idler wheel in a track undercarriage system?
The idler wheel primarily guides the track chain around the front of the machine and works in conjunction with the track tensioning system to maintain proper tr
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Question: What is the primary function of the idler wheel in a track undercarriage system?
Answer options:
- To transmit drive power to the track chain.
- To absorb shock from ground impact. ✅ To guide the track chain and maintain track tension.
- To support the weight of the machine.
Correct answer: To guide the track chain and maintain track tension.
Explanation: The idler wheel primarily guides the track chain around the front of the machine and works in conjunction with the track tensioning system to maintain proper track tension. Drive power is transmitted by the sprocket, and rollers support the machine's weight.
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