Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A heavy equipment technician is performing a routine service on a wheel loader equipped with a powershift transmission. The operator reports that the machine feels 'sluggish' and takes longer to accelerate than usual, even at high engine RPMs. What initial diagnostic step should the technician perform to investigate this complaint?
Sluggishness and slow acceleration, even with high engine RPMs, suggest internal transmission issues such as slipping clutches or converter problems. Checking t
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Question: A heavy equipment technician is performing a routine service on a wheel loader equipped with a powershift transmission. The operator reports that the machine feels 'sluggish' and takes longer to accelerate than usual, even at high engine RPMs. What initial diagnostic step should the technician perform to investigate this complaint?
Answer options: ✅ Check all transmission pressure readings at various RPMs and gear selections
- Inspect the transmission cooler for blockages
- Replace the transmission main filter
- Perform a thorough visual inspection of the external transmission components for leaks
Correct answer: Check all transmission pressure readings at various RPMs and gear selections
Explanation: Sluggishness and slow acceleration, even with high engine RPMs, suggest internal transmission issues such as slipping clutches or converter problems. Checking transmission pressure readings (clutch apply, main relief, converter IN/OUT) at various operating conditions is the most direct and effective initial diagnostic step to identify these internal hydraulic problems. While other options might be part of a broader diagnostic routine, they wouldn't directly pinpoint the cause of slippage as quickly or accurately as pressure tests.
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