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Questions and Answers
What is the primary function of the starter motor?
What initiates the rotation of the armature in the starter motor?
What happens when the key switch is turned to the start position?
What occurs after the starter motor engages successfully?
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What is the role of the spring in the starter motor mechanism?
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What is the primary purpose of the pull-in coil during starting?
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What happens to the coils when the starting process is completed?
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What can be inferred about the importance of the harness arrangement and connectors?
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Study Notes
Starting Motor Function
- The starting motor converts battery electricity into mechanical energy to rotate the engine flywheel and crankshaft.
- When the ignition switch is in the start position, it powers the pull-in coil, moving the selector fork forward to engage the drive gear.
Working Principle
- A small current flows through the armature, causing it to rotate slowly, facilitating gear engagement.
- Once engaged, the pull-in coil connects the battery to the starter motor's main circuit, allowing high current to flow through the armature for rapid rotation.
Operations of the Start Key
- The start key energizes both the pull-in and hold coils, enabling the armature to rotate slowly for gear meshing.
- When the main power is activated, high current flows to the armature, while the pull-in coil is short-circuited, maintaining the selector fork in position with high current.
Stopping the Start Process
- Upon completion of the start, the main power generates opposing magnetic fields in the pull-in and hold coils.
- These opposing fields cancel each other out, allowing the selector fork to return to its original position due to spring force once the main power is disconnected and the armature stops rotating.
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Description
This quiz explores the essentials of harness arrangements, including the connectors between different harnesses. Attention to these details is critical for identifying parts and their line connections quickly. Test your understanding with targeted exercises and references.
